PIETER JOHNSON

Associate Professor 303.492.5623 (phone) Ecology and Evolutionary Biology 303.492.8699 (fax) Ramaley N122, Campus Box 334 [email protected] University of Colorado www.colorado.edu/eeb/facultysites/pieter Boulder, Colorado 80309-0334 www.aquaticparasites.org

R E S E A R C H I N T E R E S T S Ecology of infectious diseases and invasive species; global change; aquatic ecosystems; climate change; biodiversity; conservation biology; community ecology

E D U C A T I O N

UNIVERSITY OF WISCONSIN, Madison, Wisconsin 2001 – 2006 PhD in Zoology with a focus in aquatic ecology and disease. Dissertation title: “Causes and consequences of disease in aquatic ecosystems” Advisor: Dr. Stephen R. Carpenter.

STANFORD UNIVERSITY, Stanford, California 1994 – 1998 Bachelor of Science in Biological Sciences with Honors and Distinction. Thesis title: “Investigation of abnormalities in amphibian communities” Advisors: Dr. Paul R. Ehrlich and Dr. Peter M. Vitousek.

A W A R D S A N D F E L L O W S H I P S 2013 George Mercer Award, Ecological Society of America 2013-2017 Early Career Fellow, Ecological Society of America 2013-2017 CAREER Award, National Science Foundation 2008-2013 Packard Fellowship, David and Lucile Packard Foundation 2012 Distinguished Member, National Society of Collegiate Scholars 2002-2005 National Science Foundation Graduate Research Fellowship 2001-2002 Prize Fellowship, University of Wisconsin, Madison 2002 Best Conference Presentation, Society for Northwestern Vertebrate Biology 2000 Sigma Xi Scientific Society, Full Membership 1998 Excellence in Teaching Award, Stanford University 1998 Fox Award for Most Outstanding Senior in Biological Sciences, Stanford University 1998 Firestone Medal Winner, Stanford University 1998 Student Award Winner for Oral Presentation, Society for Conservation Biology 1998 Phi Beta Kappa Member, Stanford University 1997 Excellence in Teaching Award, Stanford University

C U R R E N T A N D P E N D I N G F U N D I N G

2015-2018 National Science Foundation: “Preliminary Proposal: A transcriptome-based framework for understanding and forecasting disease in natural communities.” (full proposal invited 5/2015).

2015-2018 National Science Foundation: “Preliminary Proposal: Diversity and disease: a multi-scale approach to understanding the links between biodiversity and parasite infection.” (under review).

1 Johnson CV 2015-2018 Department of Defense, Strategic Environmental Research and Development Program ($3,707,711): “Climate Change and Ecological Dynamics of Two Devastating Amphibian Pathogens.” With lead-PI Andrew Storfer and co-PIs Jake Kerby, Barbara Han (full proposal under review).

2015-2016 OneHealth Program, Colorado State University ($15,000): “Disease community ecology: understanding the transmission pathways and consequences of Toxoplasma gondii infection in humans, domestic animals, and wildlife.” With lead-PI Mike Lappin and co-PI Sue Vandewoude (awarded).

2013-2017 National Science Foundation/National Institutes of Health, Emerging Infectious Diseases (EID) Grant ($1,975,154): “Disease in complex communities: how multi-host, multi-pathogens drive infection dynamics”. With lead PI Cheryl Briggs (UCSB) ($719,961 to Johnson Lab) (awarded).

2013-2017 National Science Foundation, CAREER Grant, Division of Environmental Biology ($700,000): “The community ecology of disease: understanding how community diversity affects disease risk” (awarded).

2011-2017 National Science Foundation, Long-Term Ecological Research program ($2,080,469): “The Niwot Ridge Long-Term Ecological Research Program 2011-2016: Tipping Points in High-Elevation Ecosystems in Response to Changes in Climate and Atmospheric Deposition”. With lead PI Mark Williams ($70,735 to Johnson Lab) (awarded).

2014-2015 National Science Foundation, Research Experience for Undergraduates (REU) Supplement ($6,640): “A community approach to host-parasite interactions in aquatic ecosystems” (awarded).

P R E V I O U S F U N D I N G 2012-2013 Boulder County Open Space and the City of Boulder Open Space and Mountain Parks ($13,440): “Habitat use of northern leopard frogs in the Front Range”; with graduate student Maxwell Joseph (awarded).

2012-2014 US Fish and Wildlife Service ($159,573): “Postdoctoral research in landscape ecology and amphibian malformations” (Awarded to fund Dr. Kim Medley) (awarded).

2012-2014 Netherlands Organisation for Scientific Research ($139,404): “Fellowship from the Netherlands Organisation for Scientific Research: Earth and Life Sciences” (Awarded to fund Dr. Bethany Hoye) (awarded).

2011-2013 National Science Foundation, Integrative Organismal Systems ($406,397): “Thermal physiology of host-parasite interactions” (awarded).

2008-2013 Packard Fellowship, David and Lucile Packard Foundation ($875,000): “Toward an ecological understanding of disease” (awarded).

2013-2014 National Science Foundation, Research Experience for Undergraduates (REU) Supplement ($6,000): “Symbiont communities of freshwater snails” (awarded).

2 2012-2013 National Science Foundation, Research Experience for Undergraduates (REU) Supplement ($15,000): “Ecological stoichiometry of host-parasite interactions” (awarded).

2012-2013 National Science Foundation, Research Experience for Undergraduates (REU) Supplement ($6,000): “Temperature-mediated clearance of parasite infections in amphibians” (awarded).

2008-2011 National Science Foundation, Division of Environmental Biology ($372,911): “Linking land use, host diversity and amphibian malformations” (Awarded); lead PI with co-PIs V. McKenzie, A. Townsend.

2008-2010 Morris Animal Foundation ($106,986): “Drivers of population declines in Colorado amphibian populations” sole PI

2010-2011 City of Boulder ($7,000): “Amphibian responses to Bti application”.

2010-2011 National Science Foundation, Research Experience for Undergraduates (REU) Supplement ($7,500): “Pathogen infections and coinfections in natural amphibian communities”.

2010-2011 National Science Foundation, Research Experience for Teachers (RET) Supplement ($14,750): “Funky frogs: using deformed frogs to promote ecological education for high school students”.

2009-2010 National Geographic Society ($19,800): “Sick and twisted: understanding the emergence of amphibian deformities”.

2009-2010 National Fish and Wildlife Foundation ($60,000): “Managing wetlands to benefit native amphibians”; co-PI with lead PI V. McKenzie.

2008-2010 Cooperative agreement with Colorado Division of Wildlife ($60,000): “Colorado’s Northern leopard frogs: evaluation of current status and possible causes of decline” lead PI with co-PI V. McKenzie.

2008-2011 Division of Wildlife’s Colorado Wildlife Conservation Program ($38,592): “Effects of land use, invasions and disease on Colorado’s Northern leopard frog (Rana pipiens)” lead PI with co-PI V. McKenzie.

2006-2007 Junior Faculty Award, University of Colorado ($4,700): “Food web consequences of the New Zealand mud snail invasion in Colorado stream ecosystems”

2004-2005 NSF Doctoral Dissertation Improvement Grant ($12,000) “Ecosystem drivers of disease emergence: linking aquatic eutrophication and amphibian malformations”

P E E R - R E V I E W E D P U B L I C A T I O N S *denotes undergraduate or graduate student co-author

Published or ‘In Press’ Manuscripts

106. LaFonte, B. E., Raffel, T. R., Monk, I. N. and P. T. J. Johnson. Quantifying larval

3 Johnson CV trematode infections in hosts: a comparison of method validity and evaluation of their implications for infection success. Experimental Parasitology (in press).

105. Orlofske, S. A., Jadin, R. C. and P. T. J. Johnson. It's a predator-eat-parasite world: how characteristics of predator, parasite and environment affect consumption. Oecologia (in press).

104. Huver*, J. R., Koprivnikar, J., Johnson, P. T. J. and S. Whyard. Development and application of an eDNA method to detect and quantify a pathogenic parasite in aquatic ecosystems. Ecological Applications (in press).

103. Mihaljevic*, J. R., Joseph*, M. B., and P. T. J. Johnson. Using multi-species occupancy models to improve the characterization and understanding of metacommunity structure. Ecology (in press).

102. Stewart-Koster, B., Olden, J. D., and P. T. J. Johnson. Integrating landscape connectivity and invasion vulnerability to guide offensive and defensive invasive species management. Journal of Applied Ecology (in press).

101. Paull*, S. H., Raffel, T. R., LaFonte*, B. E. and P. T. J. Johnson (2015). How temperature shifts affect parasite production: Testing the roles of thermal stress and acclimation. Functional Ecology (in press).

100. Preston*, D. L., Boland*, C., Hoverman, J. T. and P. T. J. Johnson (2014). Natural enemy ecology: comparing the effects of predation risk, infection risk and disease on host behavior. Functional Ecology 28: 1472-1481.

99. Johnson, P. T. J. and J. T. Hoverman (2014). Heterogeneous hosts: how variation in host size, behaviour, and immunity affect parasite aggregation. Journal of Animal Ecology 83: 1103-1112.

98. Koprivnikar, J., Paull*, S. H. and P. T. J. Johnson (2014). Combined influence of hydroperiod and parasitism on larval amphibian development. Freshwater Science 33: 941-949.

97. Orlofske*, S. A., Jadin*, R. C., Hoverman, J. T. and P. T. J. Johnson (2014). Predation and disease: understanding the effects of predators at multiple trophic levels on pathogen transmission. Freshwater Biology 59: 1064-1075.

96. Johnson, P. T. J., Koprivnikar, J., Orlofske*, S. A., Melbourne, B. A. and B. E. LaFonte* (2014). Making the right choice: testing the drivers of asymmetric infections within hosts and their consequences for pathology. Oikos 123:875-885.

95. Paull*, S. H. and P. T. J. Johnson (2014). Experimental warming drives a seasonal shift in the timing of host-parasite dynamics with consequences for disease risk. Ecology Letters 17: 445-453.

94. Preston*, D. L., Orlofske*, S. A. and P. T. J. Johnson (2014). Complex life cycles in a pond food web: effects of life stage structure and parasites on network properties, trophic positions and the fit of a probabilistic niche model. Oecologia 174: 953-965.

93. Johnson, P. T. J., Preston*, D. L., Hoverman, J. T., and B. E. LaFonte* (2013). Host and parasite diversity jointly regulate pathogen transmission in complex communities.

4 PNAS 110: 16916-16921.

92. Reeves, M., Medley, K., Pinkney, A., Holyoak, M., Johnson, P. T. J. and M. Lannoo (2013). Localized hotspots drive continental geography of abnormal amphibians. PLoS ONE 8: e77467. doi:10.1371/journal.pone.0077467

91. Rohr, J. R., Blaustein, A. R., Paull*, S. H., Johnson, P. T. J., Raffel, T., and S. Young* (2013). Using physiology to understand climate-driven changes in disease and their implications for conservation. Conservation Physiology 1: doi:10.1093/conphys/cot022.

90. Altizer, S., Ostfeld, R. S., Harvell, C. D., Johnson, P. T. J., and S. Kutz (2013). Climate change and infectious diseases: from evidence to a predictive framework. Science 341: 514-519.

89. LaFonte*, B. E. and P. T. J. Johnson (2013). Experimental infection dynamics: using immunosuppression and in vivo parasite tracking to understand host resistance in an amphibian-trematode system. Journal of Experimental Biology 216: 3700-3708.

88. Lambden*, J. and P. T. J. Johnson (2013). Quantifying the biomass of parasites to understand their role in aquatic communities. Ecology and Evolution 3: 2310-2321.

87. Hoverman, J. T., Hoye, B. and P. T. J. Johnson (2013). Does timing matter? Effects of timing and species composition on parasite infection success. Oecologia 173: 1471- 1480.

86. Pinto, H. A., Jadin*, R. C., Orlofske*, S. A., Johnson, P. T. J. and A. L. Melo (2013). Biomphalaria straminea (Mollusca: Planorbidae) as an intermediate host for Ribeiroia (Trematoda: Psilostomidae) in Brazil. Journal of Parasitology 99: 914-918.

85. Joseph*, M. B., Mihaljevic*, J. R., Arellano*, A. L., Kueneman*, J. G., Preston*, D. L., Cross, P. C. and P. T. J. Johnson (2013). Taming wildlife disease: bridging the gap between science and management. Journal of Applied Ecology 50: 702-712.

84. Peterson*, A. C., Richgels*, K. L. D., Johnson, P. T. J., and V. J. McKenzie (2013). Investigating the dispersal routes used by an invasive amphibian, Lithobates catesbeianus, in human-dominated landscapes. Biological Invasions 15: 2179-2191.

83. Richgels*, K. L. D., Hoverman, J. T., and P. T. J. Johnson (2013). Evaluating community structure and the role of regional and local processes in larval trematode metacommunities of Helisoma trivolvis. Ecography 36: 854-863.

82. Thieltges, D. W., Amundsen, P. A., Hechinger, R. F., Johnson, P. T. J., Lafferty, K. D., Mouritsen, K. N., Preston*, D. L., Reise, K., Zander, C. D. and R. Poulin (2013). Parasites as prey in aquatic food webs: implications for predator infection and parasite transmission. Oikos 122: 1473-1482.

81. Johnson, P. T. J., Preston*, D. L., Hoverman, J. T., and K. L. D. Richgels* (2013). Biodiversity reduces disease through predictable changes in host community competence. Nature 494: 230-234.

80. Preston*, D. L., Orlofske*, S. A., Lambden*, J. P. and P. T. J. Johnson (2013). Biomass and productivity of trematode parasites in pond ecosystems. Journal of Animal Ecology

5 Johnson CV 82: 509-517.

79. McMahon*, T. A., Brannelly, L. A., Chatfield, M. W. H., Johnson, P. T. J., Joseph*, M. B., McKenzie, V. J., Richards-Zawacki, C. L. and J. R. Rohr (2013). Chytrid fungus Batrachochytrium dendrobatidis has non-amphibian hosts and releases chemicals that cause pathology in the absence of infection. Proceedings of the National Academy of Sciences 110: 210-215.

78. Johnson, P. T. J., Hoverman, J. T., McKenzie, V. J., Blaustein, A. R. and K. L. D. Richgels* (2013). Urbanization and wetland communities: applying metacommunity theory to understand local and landscape effects. Journal of Applied Ecology 50: 34- 42.

77. Paull*, S. H., LaFonte*, B., and P. T. J. Johnson (2012). Temperature-driven shifts in a host-parasite interaction drive nonlinear changes in disease risk. Global Change Biology 18: 3558-3567.

76. Hoverman, J. T., Paull*, S. H., and P. T. J. Johnson (2013). Does climate change increase the risk of disease? Analyzing published literature to detect climate–disease interactions. In Pielke, R. Sr. (ed.), Climate Vulnerability: Understanding and Addressing Threats to Essential Resources, Vol. 4., Academic Press. DOI: http://dx.doi.org/10.1016/B978-0-12-384703-4.00406-8.

75. Koprivnikar, J., Marcogliese, D. J., Rohr, J. R., Orlofske*, S. A., Raffel, T. R. and P. T. J. Johnson (2012). Macroparasite infections of amphibians: what can they tell us? EcoHealth 9: 342-360.

74. Lunde*, K. B., Resh, V. T, and P. T. J. Johnson (2012). Using a whole-ecosystem manipulation to understand host-parasite interactions and how they vary with study venue. Ecosphere 3: 84.

73. Hoverman, J. T., Mihaljevic*, J. R., Richgels*, K. L. D., Kerby, J. L. and P. T. J. Johnson (2012). Widespread co-occurrence of virulent pathogens within California amphibian communities. EcoHealth 9: 288-292.

72. Preston*, D. L., Orlofske*, S. A., McLaughlin*, J. P. and P. T. J. Johnson (2012). Food web including infectious agents for a California freshwater pond. Ecology 93: 1760. (data paper; Ecological Archives E093-153-D1).

71. Paull*, S. and P. T. J. Johnson (2012). Can we predict climate-driven changes to disease dynamics? Applications for theory and management in the face of uncertainty. Wildlife Conservation in a Changing Climate (J. F. Brodie, E. Post and D. Doak, eds.). University of Chicago Press.

70. Lunde*, K. B. and P. T. J. Johnson (2012). A practical guide for the study of amphibian malformations and their causes. Journal of Herpetology 46: 429-441.

69. Johnson, P. T. J. and J. T. Hoverman (2012). Parasite diversity and coinfection drive pathogen infection success and host fitness. Proceedings of the National Academy of Sciences 109: 9006-9011. [Faculty of 1000 Recommended] [2013 Mercer Award from Ecological Society of America].

6 68. Preston*, D. L., Henderson*, J. S. and P. T. J. Johnson (2012). Community ecology of invasions: direct and indirect effects of multiple invasive species on aquatic communities. Ecology 93: 1254-1261.

67. Orlofske*, S. A., Jadin*, R., Preston*, D. L., and P. T. J. Johnson (2012). Parasite transmission in complex communities: predators and alternative hosts alter pathogenic infections in amphibians. Ecology 93: 1247-1253.

66. Preston, D. L.* and P. T. J. Johnson (2012). Importance of native amphibians in the diet and distribution of the aquatic garter snake (Thamnophis atratus) in the San Francisco Bay Area of California. Journal of Herpetology 46: 221-227.

65. Blaustein, A. R., Gervasi*, S. S., Johnson, P. T. J., Hoverman, J. T., Belden, L. K., Bradley*, P. W. and G. Y. Xie* (2012). Ecophysiology meets conservation: understanding the role of disease in amphibian population declines. Philosophical Transactions of the Royal Society, Series B 367: 1688-1707.

64. Johnson, P. T. J., Rohr, J. R., Hoverman, J. T., Kellermanns, E., Bowerman, J. and K. B. Lunde* (2012). Living fast and dying of infection: host life history drives interspecific variation in infection and disease risk. Ecology Letters 15: 235-242. [Faculty of 1000 Recommended].

63. Paull*, S. H., Song*, S. J., McClure*, K. M., Sackett*, L. C., Kilpatrick, A. M. and P. T. J. Johnson (2012). From superspreaders to disease hotspots: linking transmission across hosts and space. Frontiers in Ecology and the Environment 10: 75-82.

62. Johnson, P. T. J., Preston*, D. L., Hoverman, J. T., Henderson*, J. S., Paull*, S. H., Richgels, K. L. D. and Redmond*, M. D. (2012). Species diversity reduces parasite infection through cross-generational effects on host density. Ecology 93: 56-64.

61. Hartson*, R. B., Orlofske*, S. A., Melin*, V., Dillon, Jr., R. T., and P. T. J. Johnson (2011). Land use and wetland spatial position jointly determine amphibian parasite communities. EcoHealth 8: 485-500.

60. Olden, J. D., Vander Zanden, M. J., and P. T. J. Johnson (2011). Assessing ecosystem vulnerability to invasive rusty crayfish (Orconectes rusticus) in freshwater environments. Ecological Applications 21: 2587-2599.

59. Redmond*, M. D., Hartson*, R. B., Hoverman, J. T., de Jesus-Villaneueva*, C. N. and P. T. J. Johnson (2011). Experimental exposure of Helisoma trivolvis and Biomphalaria glabrata (Gastropoda) to Ribeiroia ondatrae (Trematoda). Journal of Parasitology 97: 1055-1061.

58. Goodman, B. A. and P. T. J. Johnson (2011). Disease and the extended phenotype: parasites control host performance and survival through induced changes in body plan. PLoS ONE 6: e20193.

57. Locke, S. A., McLaughlin, J. D., Lapierre, A. R., Johnson, P. T. J. and D. J. Marcogliese (2011). Linking larvae and adults of Apharyngostrigea cornu, Hysteromorpha triloba and Alaria mustelae (Diplostomoidea, Digenea) using molecular data. Journal of Parasitology 97: 846-851.

7 Johnson CV 56. Rohr, J. R., Johnson, P. T. J., Paull*, S. H., Raffel, T. R., Dobson, A. P., Kilpatrick, A. M., Ruiz-Moreno, D., Pascual, M. and M. B. Thomas (2011). Frontiers in climate change- disease research. Trends in Ecology and Evolution 26: 270-277.

55. Johnson, P. T. J., Kellermanns, E., and J. Bowerman (2011). Critical windows of disease risk: amphibian pathology driven by developmental changes in host resistance and tolerance. Functional Ecology 25: 726-734.

54. Romansic, J. M., Johnson, P. T. J., Searle*, C. L., Johnson, J. E., Tunstall, T., Han, B. A., Rohr, J. R. and A. R. Blaustein (2011). Individual and combined effects of multiple pathogens on Pacific treefrogs. Oecologia 166: 1029-1041.

53. Peñalva-Arana, D. C., Forshay, K. J., Johnson, P. T. J., Strickler, J. R. and S. I. Dodson (2011). Chytrid infection reduces thoracic beat and heart rate of Daphnia pulicaria. Hydrobiologia 668: 147-154.

52. Blaustein, A. R., Han, B. A., Relyea, R. A., Johnson, P. T. J., Buck*, J. C., Gervasi*, S. S. and L. B. Kats (2011). The complexity of amphibian declines: understanding the role of cofactors in driving amphibian losses. Annals of the New York Academy of Sciences 1223: 108-119.

51. Johnson, P. T. J. and S. Paull* (2011). The ecology of disease emergence in fresh waters. Freshwater Biology 56: 638-657.

50. Paull*, S. and P. T. J. Johnson (2011). How will climate change affect host-parasite interactions? Understanding differential responses of hosts and parasites. Freshwater Biology 56: 767-778.

49. Johnson, P. T. J., McKenzie, V. J., Peterson*, A. C., Kerby, J. L., Brown, J., Blaustein, A. R. and T. Jackson (2011). Regional decline of an iconic amphibian associated with elevation, land-use change, and invasive species. Conservation Biology 25: 556-566.

48. Goodman, B. A. and P. T. J. Johnson (2011). Ecomorphology and disease: understanding the cryptic effects of parasitism on host habitat use, thermoregulation, and predator avoidance. Ecology 92: 542-548.

47. Johnson, P. T. J. and I. D. Buller* (2011). Parasite competition hidden by correlated coinfections: using field studies and experiments to understand parasite interactions. Ecology 92: 535-541.

46. Daly*, E. W. and P. T. J. Johnson (2011). Beyond immunity: quantifying the effects of host anti-parasite behavior on parasite transmission. Oecologia 165: 1043-1050.

45. Johnson, P. T. J. and J. Bowerman (2010). Do predators cause frog deformities? The need for an eco-epidemiological approach. Journal of Experimental Zoology 314B: 515-518.

44. Gleason, F. H., Marano, A. V., Johnson, P. T. J., and W. W. Martin (2010). Blastocladian parasites of invertebrates. Fungal Biology Reviews 24: 56-67.

43. Krugner-Higby, L., Haak*, D., Johnson, P. T. J., Shields, J. D., Jones, W. M., Reece, K. S., Meinke, T., Gendron, A. and J. A. Rusak (2010). Spatial and temporal patterns of an epizootic of ulcerative disease in crayfish (Orconectes propinquus) linked to

8 Saprolegnia australis in Big Muskellunge Lake, Wisconsin. Diseases of Aquatic Organisms 91: 57-66.

42. Johnson, P. T. J., Dobson, A., Lafferty, K. D., Marcogliese, D., Memmott, J., Orlofske*, S., Poulin, R., and D. W. Thieltges (2010). When parasites become prey: ecological and epidemiological significance. Trends in Ecology & Evolution 25: 362-371.

41. Solomon, C. T., Olden, J. D., Johnson, P. T. J., Dillon, R. T. Jr. and M. J. Vander Zanden (2010). Distribution and community-level effects of the Chinese mystery snail (Bellamya chinensis) in northern Wisconsin lakes. Biological Invasions 12: 1591-1605.

40. Johnson, P. T. J., and D. W. Thieltges (2010). Diversity, decoys and the dilution effect: how ecological communities affect disease risk. Journal of Experimental Biology 213: 961-970. [Invited manuscript as part of 2009 Symposium, “Survival in a Changing World,” Awaji Island, Japan].

39. Bowerman, J., Johnson, P. T. J., and T. Bowerman* (2010). Sublethal predators and their injured prey: linking aquatic predators and severe limb abnormalities in amphibians Ecology 91: 242-251.

38. Johnson, P. T. J., Reeves*, M. K., Krest, S. K. and A. E. Pinkney (2010). A decade of deformities: advances in our understanding of amphibian malformations and their implications. Chapter 16 (pp. 511-536) In D. W. Sparling, G. Linder, C. A. Bishop, and S. K. Krest (eds), Ecotoxicology of Amphibians and Reptiles, 2nd edition. SETAC Press, Pensacola FL.

37. Johnson, P. T. J., Townsend, A. R., Cleveland, C. C., Glibert, P. M., Howarth, R. W., McKenzie, V. J., Rejmankova, E. and M. Ward (2010). Linking environmental nutrient enrichment and disease emergence in humans and wildlife. Ecological Applications 20: 16-29.

36. Gross, J. A., Johnson, P. T. J., Prahl*, L. K. and W. H. Karasov (2009). Critical period of sensitivity for effects of cadmium on frog growth and development. Environmental Toxicology and Chemistry 28: 1227-1232.

35. Johnson, P. T. J., Lund*, P. J., Hartson*, R. B., and T. P. Yoshino (2009). Community diversity reduces Schistosoma mansoni transmission and human infection risk. Proceedings of the Royal Society of London, Series B 276: 1657-1663. [Faculty of 1000 Recommended].

34. Johnson, P. T. J., Ives, A. R., Lathrop, R. C. and S. R. Carpenter (2009). Long-term disease dynamics in lakes: causes and consequences of chytrid infections in Daphnia populations. Ecology 90: 132-144.

33. Johnson, P. T. J., Olden, J. D., Solomon, C. T. and M. J. Vander Zanden. (2009). Interactions among invaders: community and ecosystem effects of multiple invasive species in an experimental aquatic system. Oecologia 159: 161-170.

32. Johnson, P. T. J. and R. B. Hartson* (2009). All hosts are not equal: explaining differential patterns of malformations in an amphibian community. Journal of Animal Ecology 78: 191-201.

9 Johnson CV 31. Johnson, P. T. J. and V. J. McKenzie (2008). Effects of environmental change on helminth infections in amphibians: exploring the emergence of Ribeiroia and Echinostoma infections in North America. Chapter 11 (pp. 249-280) in Fried, B. and R. Toledo, The Biology of Echinostomes, From the Molecule to the Community. Springer.

30. Johnson, P. T. J., Hartson*, R. B., Larson*, D. J. and D. R. Sutherland (2008). Linking biodiversity loss and disease emergence: amphibian community structure determines parasite transmission and pathology. Ecology Letters 11: 1017-1026 (Featured on journal cover).

29. Forshay, K. J., Johnson, P. T. J., Stock*, M., Penalva*, C. and S. I. Dodson (2008). Festering food: parasitic chytridiomycete pathogen reduces quality of Daphnia hosts as a food resource. Ecology 89: 2692-2699.

28. Refardt, D., Decaestecker, E., Johnson, P. T. J., and J. Vavra (2008). Morphology, molecular phylogeny, and ecology of Binucleata daphnia n. g., n. sp. (Fungi: Microsporidia), a parasite of Daphnia magna Straus, 1820 (Crustacea: Branchiopoda). Journal of Eukaryotic Microbiology 55: 393-408.

27. Lafferty, K. D., Allesina, S., Arin, M., Briggs, C. J., DeLeo, G., Dobson, A. P., Dunne, J. A., Johnson, P. T. J. and 10 additional authors (2008). Parasites in food webs: the ultimate missing links. Ecology Letters 11: 533-546.

26. Johnson, P. T. J., Olden, J. D. and M. J. Vander Zanden (2008). Dam invaders: hydrologic impoundments enhance ecosystem invasibility. Frontiers in Ecology and the Environment 6: 357-363 (Featured on journal cover).

25. Johnson, P. T. J. and S. R. Carpenter (2008). Influence of eutrophication on disease in aquatic ecosystems: patterns, processes, and predictions. Chapter 4 (pp. 71-99) in Ostfeld, R. S., F. Keesing, and V. T. Eviner, Infectious disease ecology: effects of ecosystems on disease and of disease on ecosystems. Princeton University Press, Princeton, NJ.

24. Perkins, S., Altizer, S., Bjornstad, O., Burdon, J., Clay, K., Gomez-Aparicio, L., Jeschke, J., Johnson, P. T. J., Lafferty, K., Malstrom, C., Martin, P., Power, A., Thrall, P., Strayer, D. and M. Uriarte. Infectious disease in invasion biology (2008). Chapter 8 in Ostfeld, R. S., F. Keesing, and V. T. Eviner, Infectious disease ecology: effects of ecosystems on disease and of disease on ecosystems. Princeton University Press, Princeton, NJ.

23. Johnson, P. T. J., Chase, J. M., Dosch*, K. L., Gross, J., Hartson*, R. B., Larson*, D., Sutherland, D. R. and S. R. Carpenter (2007). Aquatic eutrophication promotes pathogenic infection in amphibians. Proceedings of the National Academy of Sciences 104: 15781-15786. [Faculty of 1000 Recommended].

22. Roth, B. M., Kaplan, I. C., Sass, G. G., Johnson, P. T. J., Marburg, A. E., Yannarell, A. C., Havlicek, T. D., Willis, T. V., Turner, M. G. and S. R. Carpenter. (2007). Linking terrestrial and aquatic ecosystems: the role of woody habitat in lake food webs. Ecological Modelling 203: 439-452.

21. Carpenter, S. R. B. J. Benson, R. Biggs, J. W. Chipman, J. A. Foley, S. A. Golding, R. B. Hammer, P. C. Hanson, P. T. J. Johnson, A. M. Kamarainen, T. K. Kratz, R. C. Lathrop, K. D. McMahon, B. Provencher, J. A. Rusak, C. T. Solomon, E. H. Stanley, M. G.

10 Turner, M. J. Vander Zanden, C. H. Wu and H. Yuan. (2007). Understanding regional change: Comparison of two lake districts. BioScience 57: 323-335 (Featured on journal cover).

20. Johnson, P. T. J., Stanton*, D. E., Preu*, E. R., Forshay*, K. J. and S. R. Carpenter. (2006). Dining on disease: how interactions between infection and environment affect predation risk. Ecology 87: 1973-1980.

19. Johnson, P. T. J., Preu*, E. R., Sutherland, D. R., Romansic*, J., Han*, B. and A. R. Blaustein. (2006). Adding infection to injury: Synergistic effects of predation and parasitism on salamander limb malformations. Ecology 87: 2227-2235 (Featured on journal cover).

18. Johnson, P. T. J., Longcore, J. E., Stanton*, D. E., Carnegie, R. B., Shields, J. D. and E. R. Preu*. (2006). Chytrid fungal infections of Daphnia pulicaria: development, ecology, pathology and phylogeny of Polycaryum laeve. Freshwater Biology 51: 634-648.

17. Wilson, W. D., Johnson, P. T. J., Sutherland, D. R., Moné, H. and E. S. Loker. (2005). A molecular phylogenetic study of the genus Ribeiroia (Digenea): trematodes known to cause limb malformations in amphibians. Journal of Parasitology 91: 1040-1045.

16. Johnson, P. T. J. and K. B. Lunde (2005). Parasite infection and limb malformations: A growing problem in amphibian conservation. Pp. 124-138 in Amphibian Declines: the Conservation Status of United States Species, M. J. Lannoo (ed). University of California Press.

15. Fried, B. and P. T. J. Johnson (2005). In vitro excystment of the metacercariae of Ribeiroia ondatrae. Parasitology Research 95: 293-294.

14. Johnson, P. T. J. and J. M. Chase. (2004). Parasites in the food web: Linking amphibian malformations and aquatic eutrophication. Ecology Letters 7: 521-526. *[Featured in Environmental Science and Technology 38: 384A-385A].

13. Johnson, P. T. J., D. R. Sutherland, Kinsella, J. M. and K. B. Lunde (2004). Review of the trematode genus Ribeiroia (Psilostomidae): Ecology, life history, and pathogenesis with special emphasis on the amphibian malformation problem. Advances in Parasitology 57: 191-253.

12. Lannoo M. J., Sutherland, D. R., Jones, P., Rosenberry, D., Klaver, R. W., Hoppe, D. M., Johnson, P. T. J., Lunde, K. B., Facemire, C. and J. M. Kapfer* (2003). Multiple causes for the malformed frog phenomenon. In: ATSM STP 1443: G. Linder, Little, E., Krest, S. and D. Sparling (Eds). Multiple stressor effects in relation to declining amphibian populations. ASTM International, West Conshoshocken, PA.

11. Johnson, P. T. J., Lunde, K. B., Zelmer, D. A. and J. K. Werner (2003). Limb deformities as an emerging parasitic disease in amphibians: Evidence from museum specimens and resurvey data. Conservation Biology 17: 1724-1737. *[Featured in Science 301: 904].

10. Johnson, P. T. J. and D. R. Sutherland (2003). Amphibian deformities and Ribeiroia infection: An emerging helminthiasis. Trends in Parasitology 19: 332-335.

11 Johnson CV 9. Johnson, P. T. J. and E. G. Ritchie (2003). Macroinvertebrate fauna of an iron-rich stream in the Wet Tropics of Australia: a comparative assessment of communities using a Rapid Bioassessment Protocol. Memoirs of the Queensland Museum 49: 331-338.

8. Johnson, P. T. J. (2003). Biased sex ratios in fiddler crabs (Brachyura, Ocypodidae): A review and evaluation of the influence of sampling method, size class, and sex-specific mortality. Crustaceana 76: 559-580.

7. Bowerman, J. and P. T. J. Johnson (2003). Timing of trematode-related malformations in Oregon spotted frogs and Pacific treefrogs. Northwestern Naturalist 84: 142-145.

6. Blaustein, A. R. and P. T. J. Johnson (2003). The complexity of deformed amphibians. Frontiers in Ecology and the Environment 1: 87-94 (Featured on journal cover).

5. Blaustein, A. R. and P. T. J. Johnson (2003). Explaining frog deformities. Scientific American 288: 60-65.

4. Johnson, P. T. J., Lunde, K. B., Thurman, E. M., Ritchie, E. G., Wray, S. W., Sutherland, D. R., Kapfer*, J. M., Frest, T. J., Bowerman, J. and A. R. Blaustein (2002). Parasite infection linked to amphibian malformations in the western United States. Ecological Monographs 72: 151-168. *[Featured in Science 286: 2434]

3. Johnson, P. T. J., Lunde, K. B., Ritchie, E. G., Reaser, J. K. and A. E. Launer (2001). Morphological abnormality patterns in a California amphibian community. Herpetologica 57: 336-352.

2. Johnson, P. T. J., Lunde, K. B., Haight*, R. W., Bowerman, J. and A. R. Blaustein (2001). Ribeiroia ondatrae (Trematoda: Digenea) infection induces severe limb malformations in western toads (Bufo boreas). Canadian Journal of Zoology 79: 370-379.

1. Johnson, P. T. J., Lunde, K. B., Ritchie, E. G. and A. E. Launer (1999). The effect of trematode infection on amphibian limb development and survivorship. Science 284: 802-804. *[Featured in Science 284: 731].

Submitted Manuscripts

11. Joseph, M. B., Preston, D. L. and P. T. J. Johnson. Integrating occupancy models and structural equation models to understand species occurrence. Ecology (submitted).

11. Calhoun, D. M., Schaffer, P. A., Gregory, J. R., Hardy*, K. M., and P. T. J. Johnson. Experimental exposure of bluegill to Ribeiroia ondatrae: histopathology and hematological responses. Journal of Aquatic Animal Health (submitted).

11. Woodhams, D. C., Bell, S. C., Bigler, L., Caprioli, R. M., Chaurand, P., Davis, L. R., Johnson, P. T. J., Reinert, L. K., Stalder, U., Vazquez, V., Lam, B. A., Harris, R. N., McKenzie, V., Pask, J. D., Rodriguez-Roman, F. and L. A. Rollins-Smith. Pace of life and immune investment: metamorphosis of amphibian skin peptide defences linked to disease emergence. Developmental and Comparative Immunology (submitted).

9. Wood, C. L. and P. T. J. Johnson. A world without parasites: Exploring the hidden ecology of infection. Frontiers in Ecology and the Environment (in revision).

8. Johnson, P. T. J., De Roode, J. C. and A. Fenton. Community ecology as a framework for

12 understanding and managing infectious diseases. Science (in revision).

7. Stephens, P. E., Altizer, S., Smith, K. F., Aguirre, A. A., Brown, J. H., Budischak, S., Byers, J. E., Critchlow, R., Davies, J. T., Drake, J. M., Ezenwa, V., Farrel, M., Gittleman, J. L., Han, B., Huang, S., Hutchinson, R. A., Johnson, P. T. J., Nunn, C. L., Onstad, D., Park, A., Poulin, R., Vazquez-Prokopec, G. M., and J. P. Schmidt. The macroecology of infectious diseases. Science (submitted).

6. Johnson, P. T. J., Ostfeld, R. S. and F. Keesing. Frontiers in research on biodiversity and disease. Ecology Letters (in revision).

5. Mischler, J. A., Johnson, P. T. J., McKenzie, V. J., and A. R. Townsend. Parasite infection alters nitrogen cycling at the ecosystem scale. Proceedings of the Royal Society of London, Series B Biological Sciences (submitted).

4. Koprivnikar, J., Hoye, B. J., Urichuk, T., and P. T. J. Johnson. Stress hormone and immune responses of larval amphibians to trematode infections. Functional Ecology (submitted).

3. Jadin, R. C., Orlofske, S. A., Koprivnikar, J. and P. T. J. Johnson. Molecular phylogenetics reveals drivers of diversification in parasites with complex life cycles. Organisms, Diversity and Evolution (submitted).

2. Hoverman, J. T., Preston*, D. L., Orlofske*, S. A., Richgels*, K. L. D. and P. T. J. Johnson. The extended phenotype of host-parasite metabolic interactions: experimental insights into the unique efficiency of parasites. Journal of Animal Ecology (submitted).

1. Wood, C. L. and P. T. J. Johnson. An effective method for ecosystem-scale manipulation of bird abundance and diversity. Ecosphere (submitted).

Other Publications (educational publications, commentaries, and reports)

10. Basey, J. M., Maines, A. P., Francis, C. D., Melbourne, B. A., Wise, S., Safran, R. and P. T. J. Johnson. Impact of a pre-lab, a write-to-learn post lab, and content reduction on evolution-based learning in an undergraduate plant biodiversity lab. Evolution: Education and Outreach (in press).

9. Hoverman, J. T. and P. T. J. Johnson (2012). Ponds and lakes: a journal through the life aquatic. Nature Knowledge 3: 17.

8. Arellano*, A. L., Joseph*, M. B., Mihaljevic*, J. R., Preston*, D. R., Kueneman*, J. G., and P. T. J. Johnson. Understanding and controlling infectious disease epidemics in humans and wildlife. Nature Knowledge (in press).

7. Blaustein, A. R. and P. T. J. Johnson (2010). When an infection turns lethal. Nature 465: 881-882.

6. Preston*, D. L. and P. T. J. Johnson (2010). Ecological consequences of parasitism. Nature Knowledge 1: 39.

5. Raffel, T. R., Rohr, J. R., Paull*, S. M. and P. T. J. Johnson (2010). Towards a general theory for how climate change will affect infectious disease. ESA Bulletin 467-473.

13 Johnson CV 4. Johnson, P. T. J. (2009). The meaning behind malformed frogs. Conservation Biology 23: 508-511 (book review).

3. Dosch*, K. D., Johnson, P. T. J. and V. J. McKenzie (2009). Northern leopard frog (Lithobates [=Rana] pipiens) sampling protocol for Colorado. Prepared by the University of Colorado for the Colorado Division of Wildlife, 38 pp.

2. Johnson, P. T. J. and V. J. McKenzie (2009). Evaluating the status of northern leopard frog (Lithobates [=Rana] pipiens) populations in Colorado. Prepared for the US Fish and Wildlife Service by the University of Colorado, 31 August 2009.

1. Johnson, P. T. J. (2006). Amphibian diversity: decimation by disease. Proceedings of the National Academy of Sciences, USA 103: 3011-3012 (article review and commentary).

I N V I T E D P R E S E N T A T I O N S 2015 Keynote speaker: Ecology and Evolution of Infectious Diseases (EEID) Annual Meeting, Athens, GA, May 2015. “What drives parasite diversity? Insights from community ecology.”

Invited speaker: University of Georgia, Athens, GA, April 2015. “The parasite paradox: using community ecology to resolve the diversity-disease debates.”

Invited speaker: Emory University, Atlanta, GA, April 2015. “The parasite paradox: using community ecology to resolve the diversity-disease debates.”

Invited speaker: Washington State University, Pullman, WA, April 2015. “The parasite paradox: using community ecology to resolve the diversity- disease debates.”

2014 Invited speaker: University of Pittsburgh, Pittsburgh, PA, April 2014. “The parasite paradox: using community ecology to resolve the diversity-disease debates.”

Invited speaker: PRIM&R (Public Responsibility in Medicine and Research) National Meeting, Denver, CO, April 2014. “Wet and wild: challenges inherent to field research in aquatic ecology.”

2013 Invited speaker: David and Lucile Packard Foundation Meeting, Denver, CO, September 2013. “Why species matter: developing a community ecology approach to disease.”

Invited speaker: University of California, Santa Cruz, February 2013. “Community ecology of disease: understanding how host and parasite diversity affect disease risk.”

Invited speaker: National Socio-Environmental Synthesis Center (SESYNC), Annapolis, Maryland, January 2013. “Diversity and disease: toward an economic assessment of disease protection.”

14 2012 Invited speaker: Research Coordination Network Ecoimmunology, University of Michigan, Ann Arbor, May 2012. “Linking community ecology and ecoimmunology: lessons from frog-parasite interactions.”

Invited speaker: World Congress of Herpetology, University of British Columbia, Canada, August 2012. “Beyond single pathogens: significance of co-infections and pathogen communities for amphibian conservation.” (presented by J. Hoverman).

2011 Invited speaker: Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Switzerland, March 2011. “The community ecology of disease: understanding how diversity affects disease risk.”

Invited speaker: Department of Integrative Physiology Colloquium, University of Colorado, April 2011. “How does environmental nutrient enrichment affect disease risk?”

Invited speaker: Ecology and Evolution of Infectious Disease (EEID) Annual Meeting, Santa Barbara, California, June 2011. “A parasite paradox: how interactions between host and parasite diversity can mitigate disease risk.”

Invited speaker: Wildlife Disease Society Colloquium, Colorado State University, Fort Collins, Colorado, May 2011. “Fascination with the abomination: what deformed frogs can tell us about disease emergence.”

Invited speaker: Colorado Fish Health Board, Denver, Colorado, July 2011. “Complexity in conservation: bullfrog invasions, disease, and amphibian declines in Colorado.”

Invited speaker: Miramontes Arts and Sciences Program, University of Colorado, Boulder, Colorado, October 2011. “The Dark Side of biology: disease ecology and invasion biology.”

2010 Invited speaker: Academy of Lifelong Learning, Denver, Colorado, October 2010. “Beyond vaccines: using ecology to help manage the risk of infectious diseases in humans and wildlife.”

Invited speaker: American Society of Parasitologists, Ecology of Amphibian Helminths Symposium, Colorado Springs, Colorado, June 2010. “Sick and twisted: determinants of Ribeiroia infection and malformation risk.”

Invited speaker: Workshop on Nitrogen Assessment in the USA, Boulder, Colorado, May 2010. “How does nutrient enrichment affect infectious disease risk?”

Keynote speaker: California Parasitologists’ Annual Meeting, February 2010, Point Reyes, California. “Towards an ecological understanding of disease.”

Invited speaker: UC Davis Ecology and Evolution Colloquium, April 2010, Davis, California. “Diversity, decoys, and the dilution effect: how changes in ecological communities affect disease risk.”

15 Johnson CV Invited speaker: Colorado Herpetologists, Denver, Colorado, June 2010. “Complexity in conservation: unraveling the causes of amphibian decline in Colorado.”

2009 Keynote speaker: Guild of Rocky Mountain Ecologists and Evolutionary Biologists, September 2009, Mountain Field Station, Colorado. “Complexity in conservation: unraveling the causes of amphibian decline in Colorado.”

Invited speaker: Company of Biologists 2009 Symposium “Survival in a Changing World,” Awaji Island, Japan, August 2009. “Biodiversity and disease: how changing ecological communities affect disease risk.” Presentations represent participants’ contributions to a special issue of Journal of Experimental Biology to be published in 2010.

Plenary speaker: Society for Northwestern Vertebrate Biology, Annual Meeting, February 2009, Stevenson, Washington. “Using long-term variation to understand wildlife disease dynamics.”

Keynote speaker: Biological Invasions Symposium, February 2009, Stevenson, Washington. “The “mojo effect”: impoundments as landscape attractors for biological invasions.”

Invited speaker: Boulder County Nature Association Ecosymposium, March 2009, Boulder, Colorado. “Complexity in conservation: unraveling the causes of amphibian decline in Colorado.”

Colloquium speaker: Colorado Water Institute, Colorado State University, April 2009, Fort Collins, Colorado. “Complexity in conservation: unraveling the causes of amphibian decline in Colorado.”

Featured presentation: University of Colorado Museum BioLounge, Save the Frogs Exhibit, April 2009, Boulder, Colorado. “The meaning behind malformed frogs.” Part of educational outreach effort to increase awareness about amphibian population losses worldwide.

2008 Invited symposium speaker: International Society for Environmental Epidemiology, Annual Meeting, October 2008, Pasadena, California. “Effects of changes in the global N cycle on infectious diseases.” Symposium on Nitrogen and Health.

Invited speaker: Global Water Colloquium 2008: From Conflict to Sustainability Challenges and Opportunities in an Interdependent World, Fort Collins, Colorado, March, 2008. “Linking environmental nutrient enrichment and disease in humans and wildlife.”

Invited speaker: Big Thompson Watershed Forum, Loveland, Colorado. October, 2008. “Environmental nutrient enrichment and disease.”

Colloquium presentation: Environmental Engineering Seminar, University of Colorado, Boulder, March, 2008. “How community- and ecosystem changes affect disease emergence in freshwaters.”

16 2007 Invited symposium speaker: International Nitrogen Meeting, Costa de Sauipe, Brazil. October, 2007. “Nutrient enrichment and disease: direct and indirect effects.”

Colloquium speaker: Colorado State University Invited Seminar, Fort Collins, Colorado, April 24, 2007. “Sick and twisted: using deformed frogs to promote an ecological understanding of disease.”

Symposium speaker: Understanding Agriculture’s effects on Amphibians and Reptiles in a Changing World, February 6-8, 2007, St. Louis, Missouri. “Effects of aquatic eutrophication on parasite-induced malformations in amphibians.”

Invited speaker: US Fish and Wildlife Service Abnormal Amphibian Project Meeting, February 27th – March 1st, Deland, Florida. “Parasite infection and amphibian limb malformations across US National Wildlife Refuges.”

2006 Symposium speaker: Society for Northwestern Vertebrate Biology, Special Session on Amphibian Diseases. Evergreen College, Washington. “Amphibian malformations and trematode parasite infection.”

Colloquium speaker: UC Santa Cruz Invited Seminar, Santa Cruz, California. “Toward an ecological understanding of disease.”

Colloquium speaker: UC Irvine Invited Seminar, Irvine, California. “What deformed amphibians and diseased Daphnia can teach us about the ecology of disease.”

2005 Colloquium speaker: University of Wyoming Invited Seminar, Laramie, Wyoming. “Sick and twisted: using deformed frogs to promote an ecological understanding of disease.”

Organized oral session speaker: Organized Oral Session at ESA, Annual Meeting, Montreal, Quebec. “Cross-scale drivers of disease emergence: causes and consequences of amphibians malformations.”

Keynote speaker: Midwest Herpetological Symposium, Minneapolis, Minnesota. “Sick and twisted: 10 years of amphibian deformities.”

Keynote speaker: Canadian Society of Zoology Annual Meeting, Kingston, Ontario. “Amphibian malformations and parasite infection: ecological drivers across time and space.”

Symposium speaker: Cary Conference on Infectious Diseases, Institute for Ecosystem Studies, Millbrook, New York. “Influence of eutrophication on disease in aquatic ecosystems.” Presentations became part of special publication on infectious diseases in ecosystems.

2004 Invited speaker: Michigan Lakes and Streams Association Annual Meeting, Iron River, Michigan. “Amphibian malformations: an emerging disease.”

17 Johnson CV Invited speaker: Long-Term Ecological Research Meeting, North-Temperate Lakes. University of Wisconsin, Madison. “Spiny water fleas invade Wisconsin: conservation and management implications.”

2003 Symposium speaker: All Scientists Meeting, Long-Term Ecological Research Program, Seattle, Washington. “Parasites in an ecosystem context: causes and consequences of disease in aquatic systems.”

Invited speaker: Long-Term Ecological Research Meeting, North-Temperate Lakes, University of Wisconsin, Madison. “Disease dynamics in Daphnia populations.”

2001 Colloquium speaker: Department of Biological Sciences Seminar. University of Pittsburgh, Pittsburgh, Pennsylvania. “Deformed amphibians: an emerging phenomenon?”

2000 Invited speaker: US Geological Survey, Amphibian Research Monitoring Initiative (ARMI) Workshop. USGS National Center, Reston, Virginia. “Parasite infection linked to amphibian malformations in the western United States.”

Keynote speaker: Sigma Xi Awards Ceremony. Pomona College, Pomona, California. “Insights from the investigation of amphibian malformations.”

1999 Invited speaker: Ontogeny, Inc., June 1999, Cambridge, Massachusetts. “Parasites and deformed frogs: insights into the molecular mechanism.”

1998 Symposium speaker: National Science Foundation Workshop III: Mechanisms of Developmental Disruption in Amphibians. San Diego Zoo, San Diego, California. “Trematodes and amphibian malformations: synthesis of field and laboratory investigations.”

Colloquium speaker: Center for Conservation Biology Lecture Series. October 23, 1998, Stanford University, Stanford, California. “Amphibian Abnormalities: Parasites, Pesticides, or Propaganda?”

C O N T R I B U T E D P R E S E N T A T I O N S 2012 Lambden, J. P. and Johnson, P. T. J. Quantifying the biomass of parasites to understand their role in aquatic food webs. Ecological Society of America Annual Meeting, Portland, Oregon.

LaFonte, B. E., and P. T. J. Johnson. Explaining interspecific variation in host infection and disease: experimental evidence that immuno-suppression increases trematode infection success in amphibian hosts. Ecological Society of America Annual Meeting, Portland, Oregon.

Preston, D. L., Orlofske, S. A., McLaughlin, J. P. Lambden, J. P. and P. T. J. Johnson. Parasites in pond ecosystems: implications for food webs, biomass and productivity. Ecological Society of America Annual Meeting, Portland, Oregon.

18 Paull, S. and P. T. J. Johnson. Beyond temperature: comparing the roles of termperature, seasaonality, and evaporation in climate-driven changes to host parasite infections. Ecological Society of America Annual Meeting, Portland, Oregon.

Orlofske, S. A., Jadin, R. C. and P. T. J. Johnson. Predation on parasites: effects of predator type, parasite species, and environmental conditions. Ecological Society of America Annual Meeting, Portland, Oregon.

Koprivnikar, J., Orlofske, S. A., Melbourne, B., Walker, P. A. and P. T. J. Johnson. One is better than two? Asymmetry in echinostome infections of tadpole kidneys reduces host pathology. American Society of Parasitologists, Richmond, Virginia.

2011 Johnson, P. T. J. How does environmental nutrient enrichment affect infectious disease risk? Ecological Society of America Annual Meeting, Austin, Texas.

Hoverman, J. T., Johnson, P. T. J., Dosch, K. L., Kellermanns, K. L., LaFonte, B. E., and D. L. Preston. Co-infecting parasites: how parasite assemblages and timing of exposure affect host pathology and parasite loads. Ecological Society of America Annual Meeting, Austin, Texas.

Hoverman, J. T. and Johnson, P. T. J. “Amphibian malformations and trematode parasite infection” Northwest Partners in Amphibian and Reptile Conservation, Amphibian Disease Workshop, Gig Harbor, Washington.

Paull, S. H. and P. T. J. Johnson. Disease as a moving target: factors influencing dynamics of a multi-host parasite across space and time. Ecological Society of America Annual Meeting, Austin, Texas.

Orlofske, S. A., Jadin, R. C., Preston, D. L., and P. T. J. Johnson. Predators and alternative hosts reduce parasite transmission to larval amphibian hosts. Ecological Society of America Annual Meeting, Austin, Texas.

Orlofske, S. A., Jadin, R. C., Preston, D. L., Johnson, A. V. and P. T. J. Johnson. Dispersal barriers and phylogeographic patterns of the Pacific chorus frogs (Hylidae: Pseudacris regilla). Joint Meeting of Ichthyologists and Herpetologists Annual Meeting, Twin Cities, Minnesota.

2010 Hellmuth, S. and P. T. J. Johnson. Temperature-driven shifts in host-parasite interactions: consequences for parasite transmission and amphibian pathology. Ecological Society of America Annual Meeting, Pittsburgh, Pennsylvania.

Dosch, K. L. and P. T. J. Johnson. Anthropogenic land use shifts freshwater aquatic community composition: parasites and their hosts response to cattle grazing. Ecological Society of America Annual Meeting, Pittsburgh, Pennsylvania.

Orlofske, S. A., Jadin, R., and P. T. J. Johnson. Parasite transmission to larval amphibians is reduced by alternative native and non-native hosts and

19 Johnson CV predators. American Society for Parasitologists Annual Meeting, Colorado Springs, Colorado.

Johnson, P. T. J., Buller, I. D., and K. B. Lunde. Too close for comfort: parasite competition hidden by correlated coinfections. Ecological Society of America Annual Meeting, Pittsburgh, Pennsylvania.

Buller, I. D., Larson, D. J., Orlofske, S. A., and P. T. J. Johnson. Parasites of juvenile western toads (Anaxyrus boreas) from California and Oregon, USA. American Society for Parasitologists Annual Meeting, Colorado Springs, Colorado.

2009 Hellmuth, S. and P. T. J. Johnson. Temperature-mediated pathology: Differential effects of climate change on the pathogenic trematode, R. ondatrae and its host H. trivolvis. Ecological Society of America Annual Meeting, Albuquerque, New Mexico.

Orlofske, S. A., Johnson, P. T. J., Melbourne, B. A., and A. M. Schotthoefer. Spatial aggregation of parasites within hosts: Biased distributions of trematode parasites in amphibian kidneys. Ecological Society of America Annual Meeting, Albuquerque, New Mexico.

2008 Johnson, P. T. J., Olden, J., Solomon, C. and J. Vander Zanden. “Between a rock and a hard place: effects of rusty crayfish and Chinese mystery snails on freshwater communities.” Ecological Society of America Annual Meeting, Milwaukee, Wisconsin.

2007 Johnson, P. T. J. “Deformed amphibians and trematode parasites: the role of community and ecosystem ecology.” Rocky Mountain Parasitologists Meeting, Denver, Colorado.

Johnson, P. T. J., Hartson, R. B. and D. J. Larson. “Linking diversity loss and disease emergence: insights from amphibian malformations and parasite infection.” ESA, Annual Meeting, San Jose, California.

2006 Johnson, P. T. J., Olden, J. D. and M. J. Vander Zanden. Impoundments as landscape attractors for aquatic invasions. Guild of Rocky Mountain Ecologists and Evolutionary Biologists, Mountain Research Station, Colorado.

2005 Johnson, P. T. J. “Malformations and parasite infection: an emerging problem in amphibian conservation.” Declining Amphibian Population Task Force Meeting, University of California, Berkeley.

Johnson, P. T. J., Longcore, J. E., Stanton, D. E., Preu, E. R., Carnegie, R. B. and S. R. Carpenter. “Understanding the causes and consequences of disease in aquatic ecosystems: insights from chytrid infection in Daphnia populations.” ASLO Annual Meeting, Salt Lake City, Utah.

2004 Johnson, P. T. J., Stanton, D. E., Forshay, K. J., Darton, K., Carnegie, R. B. and S. R. Carpenter. “Dining on disease: influence of chytrid fungal infection on predator-prey interactions.” ESA Annual Meeting, Portland, Oregon.

20 Johnson, P. T. J. “Does disease matter? Insights from Daphnia populations.” Center for Limnology Seminar, University of Wisconsin, Madison, Wisconsin.

2003 Johnson, P. T. J., Lunde, K. B., Werner, J. K. and D. A. Zelmer. “Limb deformities as an emerging parasitic disease in amphibians.” ESA Annual Meeting, Savannah, Georgia. *Featured in Science 301: 904.

Johnson, P. T. J., Lunde, K. B., Werner, J. K. and D. A. Zelmer. “Emergence of amphibian malformations: Implications for conservation.” Society for Conservation Biology Annual Meeting, Duluth, Minnesota.

2002 Johnson, P. T. J., Lunde, K. B. and A. R. Blaustein. “Conservation significance of amphibian malformations in the Pacific Northwest.” Society for Northwestern Vertebrate Biology Annual Meeting, Hood River, Oregon. *Awarded best oral presentation

1999 Johnson, P. T. J., Lunde, K. B. and A. R. Blaustein. “Amphibian Deformities in the Western States: The Role of Ribeiroia Infection.” Society of Environmental Toxicology and Chemistry Annual Meeting. November 1999, Philadelphia, Pennsylvania.

Johnson, P. T. J., Lunde, K. B., Richie, E. G. and A. E. Launer. “Trematodes Induce Severe Hind limb Deformities in Frogs.” Ecological Society of America Annual Meeting. August 8-12, 1999, Spokane, Washington.

Johnson, P. T. J. and K. B. Lunde. “Conservation and Health Implications of Trematode-Induced Deformities in Amphibians.” SETAC/AWRA Joint Annual Meeting, March 25-26, 1999, La Crosse, Wisconsin. *Best Student Platform Presentation

1998 Johnson, P. T. J. and A. E. Launer. “Evidence for Parasite Infection as a Possible Cause of Polymely and Other Limb Deformities in Hyla regilla.” Society for Conservation Biology Annual Meeting. July 13-16, 1998, Macquarie University, Sydney, Australia. *Student Oral Presentation Award Winner

T E A C H I N G E X P E R I E N C E General Biology 2: Evolution, Biodiversity and Conservation (Spring 2007-2015) The spring semester of General Biology (EBIO 1220) is a concentrated introduction to macroevolution, animal and plant diversity and biology, and ecology and conservation biology, for all science majors. The course combines lecturing, interactive videos, and critical thinking questions (using iclickers) to provide students with necessary background and get them excited about the biological world. Co-taught with Sharon Collinge in 2007-2008, with Brett Melbourne in 2009-2011, 2013-2015 and with Kendi Davies in 2012.

Disease Ecology and Evolution (EBIO 4800/5800, Fall 2007, 2008, 2010) Disease Ecology is a newly developed course (2007) that serves as an introduction to the theory, concepts and frontiers of an emerging field that uses tools from epidemiology, parasitology, ecology and veterinary sciences to investigate the importance of disease in ecosystems, including pathogens of human and wildlife populations. It emphasizes critical thinking, including class discussions/debates, group

21 Johnson CV projects and presentations, and critical evaluations of the scientific literature. Includes guest discussants and local experts on disease issues in Colorado. Available to advanced undergraduate and graduate students.

Graduate Professional Development (EBIO 6001, redeveloped in Spring 2009) Co-taught with Rob Guralnick, this course is designed to provide graduate students with the necessary background to advance in a scientific career. Featured topics are customized to the current students but generally include publishing, grant writing, advising, work-life balance, and finding a job. Newly re-developed in 2009.

Readings in Disease Ecology (Spring 2008, 2010) Co-taught with Sharon Collinge in 2008 and Val McKenzie in 2010, this course is a primarily graduate-run discussion in which current papers in Disease Ecology are read, explained, and critically discussed. Focus area is generally selected by students of a given semester.

Ecology Laboratory, Stanford University (Spring 1997, 1998) Laboratory core course to accompany general biology; I revised and re-developed the Ecology Laboratory (Bio 44Y), including course content, reading materials, and field activities at the Jasper Ridge Biological Field Station, and instructed course teaching assistants how to present materials to students.

Guest Lecturer for: 2011 Conservation Biology, University of Colorado 2007 Community Ecology, University of Colorado 2007 – 2010 Parasitology, University of Colorado 2002 – 2005 Diseases of Wildlife, University of Wisconsin 2002 – 2006 Introduction to Parasitology, University of Wisconsin 2004 Conservation Biology, University of Wisconsin 1997 Ecosystems of California, Stanford University

M E N T O R I N G A N D A D V I S I N G Postdoctoral researchers: Sarah Haas (Summer 2014 to present) William Stutz (Spring 2014 to present) Chelsea Wood (Summer 2013 to Summer 2014) Kim Medley (Summer 2012 to Fall 2013) Sara Paull (Spring 2012 to Spring 2013) Bethany Hoye (Spring 2012 to Fall 2013) Jason Hoverman (Spring 2010 to Summer 2012) Brett Goodman (Spring 2009 to Spring 2010)

Graduate students: Sara Paull (PhD, Fall 2007-Spring 2012), EPA STAR Fellow Sarah Orlofske (PhD, Fall 2008-Spring 2013), NSF Graduate Research Fellowship Katherine Richgels (PhD, Fall 2008-Spring 2013), NSF Graduate Research Fellowship Dan Preston (PhD, Fall 2009-Fall 2014), NSF Graduate Research Fellowship Joseph Mihaljevic (PhD, Fall 2010-Fall 2014), NSF Graduate Research Fellowship Maxwell Joseph (PhD, Fall 2010-present), NSF Graduate Research Fellowship Ian Buller (Master’s, Fall 2012-Spring 2013) Travis McDevitt-Galles (Master’s, Fall 2013 to present) Kimberly Vincent (PhD, Summer 2015 to present)

22 Graduate student committees Blake Stevison (PhD student with Sam Flaxman) Leigh Cooper (PhD student with William Lewis) Joshua Johnson (MS student Pei-San Tsai, IPHY) Thomas Detmer (PhD student with William Lewis) Mari Reeves (PhD student at UC Davis) John Mischler (PhD student with Alan Townsend) Lisette Arellano (PhD student with Val McKenzie) Anna Peterson (MS student with Val McKenzie) Amanda Hund (PhD student with Rebecca Safran) Anja Studer (PhD student with Robert Poulin, University of Otago): Outside Reader Dorina Szurocki (PhD student with Rob Baker, University of Toronto): Outside Reader Johannes Huver (MS student with Steve Whyard, University of Manitoba): Outside Reader Antony Pearson (PhD in IQ Biology)

Undergraduate students advised while at CU August Jensen (BA in 2009, UROP award), Anna Peterson (Honors, BA in 2008 Summa cum Laude), Margaret Boyle (Honors, BA in 2008 Summa cum Laude, UROP award), Elizabeth Daly (Honors, BA in 2009 Summa cum Laude), Bryan LaFonte (UROP award), Meaghan McGrath, Ian Buller (SURE recipient), Kayley Dorsey (BURST award), Robert Wilson (BURST award), Garrett Cropsey (independent study), Kjersti Johnson (independent study), Daniel Ross, Jordan Tiranami, Rachel Hovel (Northern Michigan University, REU 2007), Lisette Arellano (UC Santa Barbara, REU 2008), Andrea Carlomagno (University of Tennessee, REU 2009), Audra Ludington, Elden Holldorf (UROP award, Gordon Alexander Award Recipient), Cassandra Lubenow, Becca Stubbs, Allison Price (Kenyon College), Christina de Jesus (University of Puerto Rico SMART 2010), Catherine Howland (University of Indiana, REU 2010), Jeff McFarland (Humboldt State University, REU 2010), Kendra Gietzen (Humboldt State University, REU 2010), Patrick Hoffman (Humboldt State University), Clara Boland (Honors, REU, BURST and UROP awards 2011-2012), Hayden Heman (REU, Honors student 2011-2012), Brit Schneider (BURST 2011), Jason Lambden (Honors, REU 2011, Jacob Van Ek Scholar 2012), Brajaan Hayes (Eastern Kentucky University, SMART 2011), Kaylin Boeckman (Truman State University, REU 2011), Kelly Finnegan (UROP 2011), Sara Eckert (University of Maryland), Emily Rae Hannon (Independent study, BURST, UROP and Honors, 2011- 2014), Mary Katherine Hill (2011), David Riott (Honors, REU 2011-2012), Kelly King (Independent Project 2011), Courtney Currier (University of Notre Dame, REU 2012), Johanna Rifosi (University of Puerto Rico, SMART 2012), Christina Garcia (REU and UROP 2013), Keegan McCaffrey (Honors and REU 2013), Sydney Lomnes (University of Wisconsin, LaCrosse, SMART 2013), Abigail Kimball (BURST 2013), Victoria Arling (BURST 2013), Nora Brown (UROP 2013), Cierra Howard (University of Hawaii, SMART 2014), Katherine Hardy (Independent Project 2014, BURST 2014), Matt Carson (REU 2014), Dina Soltow (Humboldt State University, REU 2014), Evan Esfahani (Independent Project 2015, REU 2015), Kailee Caranta (Independent Project 3015), Jackee Walker, Steven Shaw, Sean Anderson, Roxanne van Hove, Sam Rock, Molly Schwartz, Margaret Summerside (UROP 2015), Hannah Hartung (Fairfield High school, NSF RAHSS 2015).

Teaching workshops “Facilitating clickers effectively”, Spring 2013, Faculty Teaching Excellence Program

23 Johnson CV Science Education Initiative, Teaching Retreat. Summer 2012, Mountain Research Station, Boulder, Colorado “Teaching in a Nutshell”, Fall 2009, offered by Dr. Lee Potts and the Faculty Teaching Excellence Program “What do you want them to learn today? Teaching goals and formative assessment”, Spring 2011, Faculty Teaching Excellence Program

S E R V I C E A N D A F F I L I A T I O N S Department Service Teaching Assessment Committee (2012-present) Academic Review and Planning Advisory (ARPAC) Committee (Fall 2011) Merit Committee (2013-2014, 2015-2016) Graduate Committee (2007-2008, 2009-2010, 2014-2015) Executive Committee (2007-2008, 2015-2016) Ad hoc committee on Department Tenure (2009) Environmental Chamber Committee (2009-present) General Biology Committee (2008-present)

University Service Dean’s Committee to Review the Arts & Sciences Core Curriculum (2013-present) Packard Research Fellowship Committee (2011 to present) University Veterinarian Search Committee (2013) EBIO delegate to the CU Institutional Animal Use and Care Committee (IACUC) (2007- present) Faculty mentor for UROP, SURE, BURST, SMART and REU (all programs designed to enhance student involvement in research) Panel Member, New Faculty Orientation, “Advice for the First Years” (August 2013)

Professional Service Handling Editor for Disease Ecology, Oecologia Editorial Board (2014 to present)

Co-coordinator of symposium for annual ESA meeting 2015, Baltimore, Maryland: Integrating host and symbiont community ecology across scales, August 2015.

Panel Member, National Science Foundation, Graduate Research Fellowship Program (GRFP), Ecology Panel (Winter 2013 – Spring 2014)

Invited Participant, Elucidating mechanisms underlying amphibian declines in North America using hierarchical spatial models, John Wesley Powell Center for Analysis and Synthesis, Fort Collins, Colorado, January 2014.

Invited Participant, Disease Macroecology Research Coordination Network (RCN), Athens, Georgia, October 2013.

Invited Participant, Linking biodiversity and ecosystem services: From expert opinion to prediction and application, Socio-Environmental Synthesis Center (SESYNC), Annapolis, Maryland, January 2013.

Co-coordinator of ‘Emerging Issues’ session for Reactive Nitrogen RCN meeting on Impacts of Excess Nitrogen in the Environment on Human Health, Bethesda, MD, November 2012.

24 Membership Committee, American Society for Parasitologists (2012-2016)

Panel Member, National Science Foundation, Population and Community Ecology (PCE), Division of Environmental Biology (Spring 2010)

Panel Member, Sigma Xi Undergraduate Research Grants, University of Colorado.

Invited Participant, National Science Foundation/National Institutes of Health, Ecology of Infectious Diseases, Stone House, Bethesda, Maryland, April 2010.

Co-coordinator of symposium for annual ESA meeting 2010, Pittsburgh, Pennsylvania: Toward a general theory for how climate change will affect infectious disease, August 2010.

Organizer of symposium for annual American Society of Parasitologists Meeting 2010, Colorado Springs, Colorado: Ecology of Amphibian Helminths.

Panel Member, National Science Foundation, Doctoral Dissertation Improvement Grant (DDIG) in Ecology (Spring 2008)

Participant in NCEAS Workshop Parasites and Food Webs, organized by Kevin Lafferty (USGS/UCSB), 2008-2010.

Coordinator of special organized session for annual ESA meeting 2007: Disease emergence and amphibian declines: using ecology to understand patterns and promote restoration.

Co-organizer (with A. Townsend and M. Ward), Special Session in the 2007 International Nitrogen Meeting: Nitrogen and Health, October, 2007. Costa de Sauipe, Brazil. Formed the basis for an invited manuscript to Ecological Applications (Johnson et al. 2010).

Co-coordinator of workshop on Disease and Long-Term Research in Ecology for the LTER All Scientists Meeting in Estes Park, Colorado, September 20-23 (with Mike Antolin, CSU).

Member of the Ecological Society of America, the American Society for Limnology and Oceanography, American Society of Ichthyologists and Herpetologists, and the American Society of Parasitologists.

Guest Associate Editor for Ecological Applications (2011)

Reviewer for four textbooks, grant proposals from the National Science Foundation (NSF), Sigma Xi Scientific Society, National Geographic Society, the Lewis and Clark Fund for Exploration and Field Research, and the Biotechnology and Biological Sciences Research Center (BBSRC), and manuscripts submitted to Applied Herpetology, Alytes, American Naturalist, Amphibia-Reptilia, Animal Behaviour, Animal Conservation, Biological Conservation, Biological Invasions, Canadian Journal of Zoology, Conservation Biology, Copeia, Diseases of Aquatic Organisms, EcoHealth, Ecology, Ecological Applications, Ecology Letters, Ecosystems, Environmental Health Perspectives, Estuarine, Coastal and Shelf Science, Freshwater Biology, Frontiers in Ecology and the Environment, International Journal of Parasitology, Journal of Animal Ecology, Journal of Applied Ecology, Journal of Herpetology, Journal of the North

25 Johnson CV American Benthological Society, Journal of Parasitology, Journal of Wildlife Diseases, Journal of Zoology, Landscape Ecology, Marine Biology, Marine and Freshwater Research, Molecular Phylogenetics and Evolution, Nature Knowledge, Oecologia, Parasitology, PLoS ONE, Proceedings of the National Academy of Sciences, Proceedings of the Royal Society of London, Science, and Turkish Journal of Veterinary and Animal Sciences.

C A M P U S A N D C O M M U N I T Y O U T R E A C H 2014 Presenter at the PRIM&R (Public Responsibility in Medicine and Research) National Meeting, Denver, CO, April 2014. “Wet and wild: challenges inherent to field research in aquatic ecology.”

2014-present Collaborating with CU Science Discovery to develop an implement an educational module focused on the role of biodiversity in disease mitigation (recently developed into an interactive board game already implemented in school activities in several parts of Colorado).

2012-present Initiated collaboration with National Geographic’s FieldScope program to build a citizen science program focused on amphibian abnormalities (MalformationNation), the pilot form of which has already been launched.

2012-present Science Advisor, Strange Nature film, Ojala Productions

2008-present Initiated collaboration with Freshwaters Illustrated, a media company specifically focused on promoting conservation in freshwater ecosystems. We are working to develop an online video and website to teach students about the complexity of global change using deformed frogs. This effort will also increase awareness about amphibian population declines.

2008-2013 Scientific Advisory Committee for Save the Frogs! Foundation

2011 Hosted a lab tour for the University of Colorado Biology Club to educate and motivate undergraduate students to get involved in academic research.

2011 Faculty presenter to the Miramontes Arts and Sciences Program, an initiative designed to promote under-represented undergraduates in pursuing scientific careers.

2009, 2012 Coordinated local community events to recognize “Save the Frogs Day” (April 28th, 2009), an international event designed to promote awareness about amphibian population declines worldwide. Our local efforts included developing an exhibit at the CU Museum, presentations by myself to the Boulder County Nature Association, the Colorado Water Institute, and to the University of Colorado Museum’s BioLounge, as well as presentations by my graduate students to the EBIO Undergraduate Club and three local elementary schools. See http://www.colorado.edu/news/r/80e8a37573bbd33bb28c2b9cc73e7dee.html and http://www.today.colostate.edu/story.aspx?id=1171).

2008 Invited Presenter for Big Thompson Watershed Forum, Loveland, Colorado: “Environmental nutrient enrichment and disease.” October, 2008.

26 2007 Served as a consultant for the Hall of Biodiversity at the American Museum of Natural History; story focused on the role of nutrient enrichment in amphibian deformities: see http://sciencebulletins.amnh.org/? sid=b.s.frog_deformities.20071029&src=b

2007 Served as a consultant for the Vancouver Aquarium in British Columbia in developing a deformed frog exhibit.

2007 Presenter for Café Scientifique in Boulder: “Deformed frogs: parasites, pesticides or propaganda?” December, 2007, Redfish Brewery, Boulder, Colorado.

Recent Press Coverage “Many species, one health”: a February 2015 News Feature story in PNAS focuses on the research done by the Johnson Lab on the links between changes in biodiversity and disease risk in wildlife. In particular, the feature synthesizes recent research testing the diversity- disease relationship in amphibians as a model for understanding emerging human diseases, which are often more difficult to study with the same level of replication and experimentation. See http://www.pnas.org/content/112/6/1647.full.pdf

“Mind suckers: meet nature’s nightmare”: in the November 2014 issue of National Geographic, the cover story focuses on the capacity of parasites to alter their hosts in bizarre yet fascinating ways. The accompanying story by Carl Zimmer features a broad range of examples, including the ability of the trematode parasite Ribeiroia ondatrae to cause severe deformities in frogs. The story includes photos from the Johnson Lab and a graphic novel of the Ribeiroia life cycle developed in collaboration with our lab. See http://ngm.nationalgeographic.com/2014/11/mindsuckers/zimmer-text

“Biodiversity protects against disease”: in a 2013 publication in Nature, Dr. Johnson and colleagues integrated lab experiments, extensive field surveys, and large-scale field manipulations to comprehensively test the influence of biodiversity losses on pathogen transmission. Their results offer clear insights into the mechanisms through biodiversity can protect against disease and provide one of the most rigorous tests to date of the dilution effect hypothesis. See http://www.colorado.edu/news/releases/2013/02/13/cu-boulder- amphibian-study-shows-how-biodiversity-can-protect-against and http://phenomena.nationalgeographic.com/?p=152034&preview=true

“Climate change altering infectious diseases”: A new (2013) review published in Science illustrates how climate changes is already affecting infectious diseases in many parts of the globe and emphasizes the need to develop a more predictive framework to understand under what circumstances such changes are likely to pose problems for health and conservation. See http://www.sciencedaily.com/releases/2013/08/130801142329.htm and http://www.nsf.gov/mobile/news/news_summ.jsp?cntn_id=128617

“CU ecology prof garners two high honors”: A story in CU’s Arts & Sciences Magazine celebrates two recent awards received by Dr. Johnson in 2013: the George Mercer Award, which recognizes an outstanding published paper by a junior scientist, and the Early Career Fellowship from the Ecological Society of America. See http://www.colorado.edu/news/features/cu-ecology-prof-garners-two-high-honors or http://artsandsciences.colorado.edu/magazine/2013/07/young-cu-ecology-prof-garners- two-high-honors/

27 Johnson CV “Can more parasites be good for you?” in a 2012 publication in PNAS, we find that higher parasite diversity can actually reduce transmission of the most dangerous pathogens, potentially leading to lower disease risk for the host population. These findings draw attention to the underappreciated importance of parasite diversity. See: http://www.dailycamera.com/cu-news/ci_20676252/cu-boulder-diversity-parasites- decreases-frog-deformities http://green.blogs.nytimes.com/2012/05/22/parasites-can-be-good-for-you-seriously/

“Altered amphibians”: High County News highlights efforts of the Johnson Lab to understand the drivers and consequences of malformed amphibians. Includes a new article and photo log. https://www.hcn.org/issues/44.19/altered-amphibians https://www.hcn.org/blogs/goat/amphibian-alterations

“Hungry predators”: in an article published in Ecology (2010), our research reveals that predatory attack is an important cause of limb deformities in sensitive frog species. Previously this idea had been dismissed by many scientists, but long-term data combined with experiments shows how predators can explain many of the missing-legged frogs. See: http://www.minnpost.com/stories/2009/08/17/10844/studies_offer_new_insights_into_cau ses_of_deformed_frogs and http://www.oregonlive.com/environment/index.ssf/2009/08/oregon_frog_legs_are_a_delica c.html

“Green revolution’s dark side effect: disease”: in a 2010 article in Colorado Arts and Sciences Magazine, Clint Talbott features results of our research in an exploration of how nutrient enrichment can promote infectious diseases. http://artsandsciences.colorado.edu/magazine/2010/06/green-revolutions-dark-side-effect- disease/

“Parasites creating deformed frogs in Western US”: National Geographic News covers recent (2011) efforts by the Johnson Lab, including work by graduate student Sara Paull, in re-surveying amphibian malformation sites across the western United States. This work shows a link to parasitism and explores the implications of this disturbing phenomenon. http://news.nationalgeographic.com/news/2011/08/110802-frogs-deformed-parasites- animals-environment-mutants/ (full story) http://news.nationalgeographic.com/news/2011/08/pictures/110803-frog-parasites- deformed-malformations-legs-animals-science/ (photo log)

“Researchers battle parasite-driven frog deformities”: A 2011 story featured on PBS details efforts by our group to explore methods that can help reduce infections and promote amphibian conservation. http://www.pbs.org/newshour/rundown/2011/10/frog-deformities-linked-to-flatworm- parasite.html

“Dam invaders”: published cover story in Frontiers in Ecology and the Environment (September 2008) linking dam construction and species invasions. Covered in Denver Post, Wisconsin State Journal, Environmental Science and Technology, and numerous environmental websites.

“Biodiversity reduces disease”: published cover article in Ecology Letters (October 2008) showing the higher levels of species diversity can reduce parasitic infections, with important implications for conserving biodiversity. Covered in the Rocky Mountain News.

28 “Nutrient enrichment increases parasitic disease”: published in PNAS in September 2007 and covered by many news sources, including Yahoo! News, Google, Rocky Mountain News, Denver Post, New York Times, New Scientist, Live Science, Los Angeles Times, Fox News (television), ABC News (television), CNN, Associated Press, Reuters, National Science Foundation, Wisconsin State Journal, United Press International.

Research by the Johnson Lab has been featured in a number of textbooks, including Conservation Science: Balancing the Needs of People and Nature (2010) by Kareiva and Marvier, Ecology (2011) by Cain et al., Life: the Science of Biology (2008) by Sadava et al., and Biology: the Unity and Diversity of Life (2008) by Starr et al.

29 Johnson CV