Appendix C: Tables
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Robert C. Rhew Dept
Curriculum vitae: June, 2016 Robert Rhew, UC Berkeley Robert C. Rhew Dept. of Geography / Dept. of Environmental Science, Policy and Management Lab: (510) 643-6984 University of California, Berkeley Facsimile: (510) 642-3370 Berkeley, CA 94720-4740 E-mail: [email protected] EDUCATION 1992 B.A. Earth & Planetary Sciences (Atmospheres and Oceans) Harvard University Magna cum laUde with highest honors Cambridge, MA 1994 Graduate Diploma. Resource & Env’t Management Australian National University Diploma with Distinction Canberra, ACT 2001 Ph.D. Earth Sciences (Geochemistry) Scripps Institution of Oceanography, UCSD Thesis title: Production and Consumption of Methyl Bromide and Methyl La Jolla, CA Chloride by the Terrestrial Biosphere ACADEMIC EMPLOYMENT 2012 – present Associate Professor, Dept. Envt. Science, Policy & Mgt. University of California, Berkeley 2009 – present Associate Professor, Department of Geography University of California, Berkeley 2006 – present Geological Scientist Faculty, Earth Sciences Division Lawrence Berkeley National Labs, CA 2013 – 2014 Visiting Faculty Fellow, National Center for Atmospheric Research NCAR, Boulder, CO 2013 – 2014 CIRES Visiting Fellow, NOAA/ CIRES University of Colorado, Boulder 2003 – 2009 Assistant Professor, Department of Geography University of California, Berkeley 2001 – 2003 Postdoctoral Researcher, Earth System Science University of California, Irvine UCAR/NOAA Climate and Global Change Postdoctoral Fellowship, Host: Prof. Eric Saltzman Other appointments: Affiliate faculty in Energy -
Integrating Arctic Plant and Microbial Ecology ‐ 21St ITEX Meeting ‐ September 16‐18 2015
Abstracts: Integrating Arctic Plant and Microbial Ecology ‐ 21st ITEX meeting ‐ September 16‐18 2015 Integrating Arctic Plant and Microbial Ecology ‐ 21st ITEX meeting ORAL PRESENTATIONS: O1. Impacts of winter snow on plants and microbes in a mountain peatland Ellen Dorrepaal1,2, Vincent Jassey2,3, Constant Signarbieux2,3, Rob Mills2,3, Alexandre Buttler2,3, Luca Bragazza2,4, Bjorn Robroek2,5 1: Climate Impacts Research Centre, Umeå University, Sweden 2: Laboratory of Ecological Systems, École Polytechnique Fédérale de Lausanne, Switzerland 3: Swiss Federal Research Institute‐WSL, Community Ecology Research Unit, Switzerland 4: Department of Biology and Evolution, University of Ferrara, Italy 5: Ecology and Biodiversity, Utrecht University, The Netherlands Winter in the arctic and mid‐ and high latitude mountains are characterised by frost, snow and darkness. Ecosystem processes such as plant photosynthesis, nutrient uptake and microbial activities are therefore often thought to strongly slow down compared to summer. However, sufficient snow insulates and might enable temperature‐limited processes to continue. Changes in winter precipitation may alter this, yet, winter ecosystem processes remain poorly understood. We removed snow on an ombrotrophic bog in the Swiss Jura mountains to compare impacts and legacy effects on above‐ and belowground ecosystem processes. Snow in mid‐winter (1m; February) and late‐winter (0.4m; April) reduced the photosynthetic capacity (Amax) of Eriophorum vaginatum and the total microbial biomass compared to the subsequent spring 15 (June) and summer (July) values. Amax of Sphagnum magellanicum and N‐uptake by vascular plants were, however, almost as high or higher in mid‐ and late‐winter as in summer. Snow removal enhanced freeze‐thaw cycles and minimum soil temperatures. -
Recent Changes in the Zooplankton Communities of Arctic Tundra
University of Texas at El Paso DigitalCommons@UTEP Open Access Theses & Dissertations 2019-01-01 Recent Changes In The Zooplankton Communities Of Arctic Tundra Ponds In Response To Warmer Temperatures And Nutrient Enrichment Mariana Vargas Medrano University of Texas at El Paso Follow this and additional works at: https://digitalcommons.utep.edu/open_etd Part of the Biology Commons Recommended Citation Vargas Medrano, Mariana, "Recent Changes In The Zooplankton Communities Of Arctic Tundra Ponds In Response To Warmer Temperatures And Nutrient Enrichment" (2019). Open Access Theses & Dissertations. 2018. https://digitalcommons.utep.edu/open_etd/2018 This is brought to you for free and open access by DigitalCommons@UTEP. It has been accepted for inclusion in Open Access Theses & Dissertations by an authorized administrator of DigitalCommons@UTEP. For more information, please contact [email protected]. RECENT CHANGES IN THE ZOOPLANKTON COMMUNITIES OF ARCTIC TUNDRA PONDS IN RESPONSE TO WARMER TEMPERATURES AND NUTRIENT ENRICHMENT MARIANA VARGAS MEDRANO Doctoral Program in Ecology and Evolutionary Biology APPROVED: Vanessa L. Lougheed, Ph.D., Chair Craig Tweedie, Ph.D. Wen-Yen Lee, Ph.D. Elizabeth J.Walsh, Ph.D. Stephen L. Crites, Jr., Ph.D. Dean of the Graduate School Copyright © by Mariana Vargas Medrano 2019 Dedication This dissertation is dedicated to all my incredible family for all the love and support. RECENT CHANGES IN THE ZOOPLANKTON COMMUNITIES OF ARCTIC TUNDRA PONDS IN RESPONSE TO WARMER TEMPERATURES AND NUTRIENT ENRICHMENT by MARIANA VARGAS MEDRANO, B.S., M.S. DISSERTATION Presented to the Faculty of the Graduate School of The University of Texas at El Paso in Partial Fulfillment of the Requirements for the Degree of DOCTOR OF PHILOSOPHY DEPARTMENT OF BIOLOGICAL SCIENCES THE UNIVERSITY OF TEXAS AT EL PASO AUGUST 2019 Acknowledgments This study was funded by NSF Polar Programs (ARC-0909502). -
Impacts of Land Use on Biodiversity: Development of Spatially Differentiated Global Assessment Methodologies for Life Cycle Assessment
DISS. ETH NO. xx Impacts of land use on biodiversity: development of spatially differentiated global assessment methodologies for life cycle assessment A dissertation submitted to ETH ZURICH for the degree of Doctor of Sciences presented by LAURA SIMONE DE BAAN Master of Sciences ETH born January 23, 1981 citizen of Steinmaur (ZH), Switzerland accepted on the recommendation of Prof. Dr. Stefanie Hellweg, examiner Prof. Dr. Thomas Koellner, co-examiner Dr. Llorenç Milà i Canals, co-examiner 2013 In Gedenken an Frans Remarks This thesis is a cumulative thesis and consists of five research papers, which were written by several authors. The chapters Introduction and Concluding Remarks were written by myself. For the sake of consistency, I use the personal pronoun ‘we’ throughout this thesis, even in the chapters Introduction and Concluding Remarks. Summary Summary Today, one third of the Earth’s land surface is used for agricultural purposes, which has led to massive changes in global ecosystems. Land use is one of the main current and projected future drivers of biodiversity loss. Because many agricultural commodities are traded globally, their production often affects multiple regions. Therefore, methodologies with global coverage are needed to analyze the effects of land use on biodiversity. Life cycle assessment (LCA) is a tool that assesses environmental impacts over the entire life cycle of products, from the extraction of resources to production, use, and disposal. Although LCA aims to provide information about all relevant environmental impacts, prior to this Ph.D. project, globally applicable methods for capturing the effects of land use on biodiversity did not exist. -
Biodiversity and Management of the Madrean Archipelago
)I This file was created by scanning the printed publication. Errors identified by the software have been corrected; however, some errors may remain. A Classification System and Map of the Biotic Communities of North America David E. Brown, Frank Reichenbacher, and Susan E. Franson 1 Abstract.-Biotic communities (biomes) are regional plant and animal associations within recognizable zoogeographic and floristic provinces. Using the previous works and modified terminology of biologists, ecologists, and biogeographers, we have developed an hierarchical classification system for the world's biotic communities. In use by the Arid Ecosystems Resource Group of the Environmental Protection Agency's Environmental Monitoring and Assessment Program, the Arizona Game and Fish Department, and other Southwest agencies, this classification system is formulated on the limiting effects of moisture and temperature minima on the structure and composition of vegetation while recognizing specific plant and animal adaptations to regional environments. To illustrate the applicability of the classification system, the Environmental Protection Agency has funded the preparation of a 1: 10,000,000 color map depicting the major upland biotic communities of North America using an ecological color scheme that shows gradients in available plant moisture, heat, and cold. Digitized and computer compatible, this hierarchical system facilitates biotic inventory and assessment, the delineation and stratification of habitats, and the identification of natural areas in need of acquisition, Moreover, the various categories of the classification are statistically testable through the use of existing climatic data, and analysis of plant and animal distributions. Both the classification system and map are therefore of potential use to those interested in preserving biotic diversity. -
Compilation of U.S. Tundra Biome Journal and Symposium Publications
COMPILATION OF U.S • TUNDRA BIOME JOURNAL .Alm SYMPOSIUM PUBLICATIONS* {April 1975) 1. Journal Papers la. Published +Alexander, V., M. Billington and D.M. Schell (1974) The influence of abiotic factors on nitrogen fixation rates in the Barrow, Alaska, arctic tundra. Report Kevo Subarctic Research Station 11, vel. 11, p. 3-11. (+)Alexander, V. and D.M. Schell (1973) Seasonal and spatial variation of nitrogen fixation in the Barrow, Alaska, tundra. Arctic and Alnine Research, vel. 5, no. 2, p. 77-88. (+)Allessio, M.L. and L.L. Tieszen (1974) Effect of leaf age on trans location rate and distribution of Cl4 photoassimilate in Dupontia fischeri at Barrow, Alaska. Arctic and Alnine Research, vel. 7, no. 1, p. 3-12. (+)Barsdate, R.J., R.T. Prentki and T. Fenchel (1974) The phosphorus cycle of model ecosystems. Significance for decomposer food chains and effect of bacterial grazers. Oikos, vel. 25, p. 239-251. 0 • (+)Batzli, G.O., N.C. Stenseth and B.M. Fitzgerald (1974) Growth and survi val of suckling brown lemmings (Lemmus trimucronatus). Journal of Mammalogy, vel. 55, p. 828-831. (+}Billings,. W.D. (1973) Arctic and alpine vegetations: Similarities, dii' ferences and susceptibility to disturbance. Bioscience, vel. 23, p. 697-704. (+)Braun, C.E., R.K. Schmidt, Jr. and G.E. Rogers (1973) Census of Colorado white-tailed ptarmigan with tape-recorded calls. Journal of Wildlife Management, vel. 37, no. 1, p. 90-93. (+)Buechler, D.G. and R.D. Dillon (1974) Phosphorus regeneration studies in freshwater ciliates. Journal of Protozoology, vol. 21, no. 2,· P• 339-343. -
Full Text in Pdf Format
CLIMATE RESEARCH l Vol. 5: 25-30, 1995 Published February 23 Clim. Res. Impacts of increased winter snow cover on upland tundra vegetation: a case example Peter A. Scott l, Wayne R. ~ouse~ 'Atmospheric Environment Service, Centre for Atmospheric Research Experiments, RR 1, Egbert, Ontario, Canada LOL 1NO 2Department of Geography. McMaster University. Hamilton, Ontario, Canada L8S 4K1 ABSTRACT: The erection of a snow fence on upland tundra caused a significant change of the vegeta- tion over 11 yr. Compared to nearby exposed tundra, the presence of the snow fence resulted in a warmer soil in winter and a moister and cooler soil in summer. Moisture-intolerant species such as Cetraria nivalis and C. cuculata disappeared completely or decreased in frequency, whereas the more moisture-tolerant species such as Vaccinium uliginosum and Arctostaphylos alpina increased in fre- quency or established at the site. In terms of climate, any change that promotes a greater winter snow- fall, which is the case for warming scenarios in general circulation models, would initiate a relatively rapid change in species composition on upland tundra, particularly if accompanied by increased sum- mer rainfall. KEY WORDS: Climate change . Snow . Tundra vegetation INTRODUCTION fence. This paper gives the results of the 2 vegetation surveys that were separated by 11 yr. We examine the Predictions of the effects of global warming on weather characteristics during the 13 yr the snow fence northern environments should include changes in the was intact and consider possible causes for the sub- pattern of snowfall and the total annual snow quantity stantial changes in vegetation that occurred during the (Payette et al. -
Ring of Fire Proposed RMP and Final EIS- Volume 1 Cover Page
U.S. Department of the Interior Bureau of Land Management N T OF M E TH T E R A IN P T E E D R . I O S R . U M 9 AR 8 4 C H 3, 1 Ring of Fire FINAL Proposed Resource Management Plan and Final Environmental Impact Statement and Final Environmental Impact Statement and Final Environmental Management Plan Resource Proposed Ring of Fire Volume 1: Chapters 1-3 July 2006 Anchorage Field Office, Alaska July 200 U.S. DEPARTMENT OF THE INTERIOR BUREAU OF LAND MANAGEMMENT 6 Volume 1 The Bureau of Land Management Today Our Vision To enhance the quality of life for all citizens through the balanced stewardship of America’s public lands and resources. Our Mission To sustain the health, diversity, and productivity of the public lands for the use and enjoyment of present and future generations. BLM/AK/PL-06/022+1610+040 BLM File Photos: 1. Aerial view of the Chilligan River north of Chakachamna Lake in the northern portion of Neacola Block 2. OHV users on Knik River gravel bar 3. Mountain goat 1 4. Helicopter and raft at Tsirku River 2 3 4 U.S. Department of the Interior Bureau of Land Management Ring of Fire Proposed Resource Management Plan and Final Environmental Impact Statement Prepared By: Anchorage Field Office July 2006 United States Department of the Interior BUREAU OF LAND MANAGEMENT Alaska State Office 222 West Seventh Avenue, #13 Anchorage, Alaska 995 13-7599 http://www.ak.blm.gov Dear Reader: Enclosed for your review is the Proposed Resource Management Plan and Final Environmental Impact Statement (Proposed RMPIFinal EIS) for the lands administered in the Ring of Fire by the Bureau of Land Management's (BLM's) Anchorage Field Office (AFO). -
Low Arctic Tundra
ECOREGION Forest Barren Tundra Bog L1 Low Arctic Tundra NF 1 he Low Arctic This is also the driest region in Labrador; TTundra ecoregion the average annual precipitation is only 500 mm, 2 is located at the very which occurs mainly in the form of snow. Not n o r t h e r n t i p o f surprisingly, human habitation in this ecoregion Labrador. It extends south from Cape Chidley to is limited and non-permanent. 3 the Eclipse River, and is bordered by Quebec on In most years, coastal ice continues well the west and the Labrador Sea on the east. This into summer (sometimes not breaking up until region is characterized by a severe, stark beauty: August), which is longer than anywhere else on 4 vast stretches of exposed bedrock, boulders, the Labrador coast. Permafrost is continuous in and bare soil are broken only by patches of the valleys and mountains inland, and moss and lichens. There are no trees or discontinuous in coastal areas. 5 tall shrubs here and other vegetation is The large amount of exposed soil and extremely limited. bedrock, combined with the harsh climate, 6 The topography of the Low Arctic results in sparse vegetation throughout the Tundra includes flat coastal plains in the entire ecoregion. Seasonal flooding also north near Ungava Bay, and low steep- restricts the distribution of plants on valley 7 sided hills in the south with elevation up to floors. Because this area has no forests, 630 metres above sea level. In hilly it is true tundra. -
Mechanistic Modeling of Microtopographic Impacts on CO2
RESEARCH ARTICLE Mechanistic Modeling of Microtopographic Impacts 10.1029/2019MS001771 on CO2 and CH4 Fluxes in an Alaskan Tundra Key Points: ‐ • The CLM‐microbe model is able to Ecosystem Using the CLM Microbe Model simulate microtopographical Yihui Wang1, Fengming Yuan2, Fenghui Yuan1,3, Baohua Gu2 , Melanie S. Hahn4, impacts on CO and CH flux in the 2 4 5 2 2 1 Arctic Margaret S. Torn , Daniel M. Ricciuto , Jitendra Kumar , Liyuan He , • Substrates availability for Donatella Zona1 , David A. Lipson1, Robert Wagner1 , Walter C. Oechel1, methanogenesis is the most Stan D. Wullschleger2 , Peter E. Thornton2 , and Xiaofeng Xu1 important factor determining CH4 emission 1Department of Biology, San Diego State University, San Diego, CA, USA, 2Environmental Sciences Division, Oak Ridge • The strong microtopographic 3 impacts call for a model‐data National Laboratory, Oak Ridge, TN, USA, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang City, integration framework to better China, 4Civil and Environmental Engineering, University of California, Berkeley, Berkeley, CA, USA, 5Earth Sciences understand and predict C flux in the Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA Arctic Abstract Spatial heterogeneities in soil hydrology have been confirmed as a key control on CO2 and CH4 fl ‐ Correspondence to: uxes in the Arctic tundra ecosystem. In this study, we applied a mechanistic ecosystem model, CLM X. Xu, Microbe, to examine the microtopographic impacts on CO2 and CH4 fluxes across seven landscape types in [email protected] Utqiaġvik, Alaska: trough, low‐centered polygon (LCP) center, LCP transition, LCP rim, high‐centered polygon (HCP) center, HCP transition, and HCP rim. We first validated the CLM‐Microbe model against Citation: static‐chamber measured CO2 and CH4 fluxes in 2013 for three landscape types: trough, LCP center, and Wang, Y., Yuan, F., Yuan, F., Gu, B., LCP rim. -
Impacts of Temperature and Soil Characteristics on Methane
Biogeosciences Discuss., https://doi.org/10.5194/bg-2017-566 Manuscript under review for journal Biogeosciences Discussion started: 29 January 2018 c Author(s) 2018. CC BY 4.0 License. Impacts of temperature and soil characteristics on methane production and oxidation in Arctic polygonal tundra Jianqiu Zheng1, Taniya RoyChowdhury1,2, Ziming Yang3,4, Baohua Gu3, Stan D. Wullschleger3,5, David E. Graham1,5 5 1 Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, USA 2 Now at Department of Environmental Science & Technology, University of Maryland, College Park, Maryland, 20742, USA 3 Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, USA 4 Now at Department of Chemistry, Oakland University, Rochester, Michigan, 48309, USA 10 5 Climate Change Science Institute, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, USA Correspondence to: David E. Graham ([email protected]) This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. 15 Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). 20 Abstract Methane (CH4) oxidation mitigates CH4 emission from soils. However, it is still highly uncertain whether soils in high- latitude ecosystems will function as a net source or sink for this important greenhouse gas. -
Vegetation of the Continental Northwest Territories at 6 Ka BP
Document generated on 09/28/2021 6:09 a.m. Géographie physique et Quaternaire Vegetation of the Continental Northwest Territories at 6 ka BP La végétation des Territoires du Nord-Ouest continentaux à 6 ka BP Die Vegetation der kontinentalen Nordwest-Territorien um 6 ka v.u.Z. Glen M. MacDonald La paléogéographie et la paléoécologie d’il y a 6000 ans BP au Canada Article abstract Paleogeography and Paleoecology of 6000 yr BP in Canada Pollen records are used to reconstruct vegetation in the continental Northwest Volume 49, Number 1, 1995 Territories at 6 ka (6000 14C yr BP). Picea glauca, P mariana, Larix laricina, Populus tremuloides, P. balsamifera, Alnus crispa and A. incana were present URI: https://id.erudit.org/iderudit/033028ar throughout their modern ranges in the Boreal and Subarctic Forest Zones by DOI: https://doi.org/10.7202/033028ar 6000 BP. Pinus banksiana, however, had not yet reached its present northern limits. Population densities of the dominant trees, Picea glauca and Picea mariana, were close to, or as high as, present. In the Mackenzie Delta region See table of contents the range limit of Picea glauca was approximately 25 km north of its modern location just prior to 6000 BP. In contrast, the northern limits of the forest in central Canada were similar to present. The tundra vegetation close to the edge Publisher(s) of the forest was similar to modern Low Arctic Tundra. Development of extensive Sphagnum peatlands had begun in the forested areas and the Les Presses de l'Université de Montréal adjacent Low Arctic Tundra.