DOCSLIB.ORG

The Effects of Introduced Trout on Native

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
The Effects of Introduced Trout on Native THE EFFECTS OF INTRODUCED TROUT ON NATIVE MACROINVERTEBRATES FROM LAKES IN THE TRINITY ALPS WILDERNESS IN NORTHERN CALIFORNIA By Erin Colleen Hannelly A Thesis Presented to The Faculty of Humboldt State University In Partial Fulfillment Of the Requirements for the Degree Masters of Arts In Biology May 2009 ABSTRACT THE EFFECTS OF INTRODUCED TROUT ON NATIVE MACROINVERTEBRATES FROM LAKES IN THE TRINITY ALPS WILDERNESS IN NORTHERN CALIFORNIA Erin Colleen Hannelly I examined differences in native macroinvertebrates among four lake management categories (fish stocked, temporary stocking suspension, fish removal lakes, and historically fishless lakes) and among three habitats (rock, organic/silt substrate, and emergent vegetation) from 16 different lake basins in a four-year study (2003-2006) in the Trinity Alps Wilderness in northeastern California. This study showed that introduced insectivorous fish reduce the diversity of native aquatic insects. Chironomid midges were more abundant and in greater proportion in fish lakes than in fishless lakes. Additionally, more taxa were sampled each subsequent year following fish removals and more taxa were sampled from Hidden Lake, a stocking suspension lake that did not maintain a fish population, than in the other three stocking suspension lakes that did sustain viable fish populations. The reduction in insect diversity due to fish was further exemplified in Hidden Lake alone, where more taxa were recorded each subsequent year of the study. Libellula, a stout-bodied predaceous dragonfly, was most common in fish stocked lakes. The life history and morphology of Libellula (Odonata: Libellulidae) seems to give them an advantage over other invertebrate predators in fish lakes. Fish create top- iii down effects that are illustrated by the apparent ability of Libellula to regulate other insect abundances and proportions. This study also demonstrated how large-bodied insects are more commonly found in complex habitats, which may be attributable to increased habitat availability and resources, to the invertebrates seeking refugia from insectivorous fish, or to a combination of both. iv ACKNOWLEDGEMENTS I would to thank Dr. Karen Pope who has been a wonderful mentor to me throughout graduate school. Thank you for giving me the opportunity to work on such an inspiring project! Thank you to my committee members Dr. Kristine Brenneman and Dr. Peggy Wilzbach for your advice and your input on this manuscript. Thank you to my advisor, Dr. Michael Camann, for help with the identifications of some tricky beetles and endless statistical analysis. Thanks to Cynthia Werner for help with formatting. Also thanks to my parents for the occasional Hannelly Family Grant! Thanks to my friends Arin Yoon, Andy Zaleski, Garrit Craig, Mazie Cheseby, Greg Ciannella, and the Woods boys for your support. Thanks for the Woolford-Hegy Rotary scholarship and the Special Forces Association grant. And lastly, thanks to the biology community; it is refreshing and exciting to always have something fun and important to talk about. v TABLE OF CONTENTS ABSTRACT ....................................................................................................................... iii ACKNOWLEDGEMENTS ................................................................................................ v TABLE OF CONTENTS ................................................................................................... vi LIST OF TABLES ............................................................................................................ vii LIST OF FIGURES ......................................................................................................... viii INTRODUCTION .............................................................................................................. 1 METHODS ......................................................................................................................... 6 Study Sites .......................................................................................................... 7 Sampling Design ................................................................................................. 7 Data Analysis ...................................................................................................... 8 RESULTS ......................................................................................................................... 11 DISCUSSION ................................................................................................................... 21 Recommendations ............................................................................................. 28 LITERATURE CITED ..................................................................................................... 58 vi LIST OF TABLES Table Page 1. Macroinvertebrate taxa sampled from 16 subalpine lakes in four fisheries management categories in the Trinity Alps Wilderness in northern California. * indicates 5 individuals or less. ........................................................ 29 2. Macroinvertebrate taxa sampled from four fish removal lakes in the Trinity Alps Wilderness in northern California. * indicates 5 individuals or less. .......... 32 3. Macroinvertebrate taxa sampled from three habitats in 16 different subalpine lakes in the Trinity Alps Wilderness in northern California. * indicates 5 individuals or less. ................................................................................................ 34 4. Physical attributes averaged between the four blocks and mean post-treatment macroinvertebrate abundance with standard error in a landscape-scale manipulative study in the Trinity Alps Wilderness in northern California. ......... 36 5. Physical attributes averaged between the four lake management categories and mean post-treatment macroinvertebrate abundance with standard error in a landscape-scale manipulative study in the Trinity Alps Wilderness in northern California. ........................................................................ 37 6. Macroinvertebrate taxa sampled from four fish stocking suspension lakes in the Trinity Alps Wilderness in northern California. * indicates 5 individuals or less. ................................................................................................ 38 7. Macroinvertebrate taxa recovered from Hidden Lake in the Trinity Alps Wilderness in northern California. * indicates 5 individuals or less. .................. 40 vii LIST OF FIGURES Figure Page 1. Map showing the study site and blocking of 16 subalpine lakes in the Trinity Alps Wilderness in northern California. ................................................... 41 2. Ordination grouped by treatment of all post-treatment macroinvertebrate samples from 16 subalpine lakes in the Trinity Alps Wilderness in Northern California. Variable codes are the following: HYD12 – Hydrophilidae (Coleoptera), HYG21 - Hygrotus (Coloptera: Dyticidae), UVA25 – Uvarus (Coleoptera: Dyticidae), CEL27 – Celina (Coleoptera: Dyticidae), LIL42 – Libellula (Odonata: Libellulidae), LIM55 – Limnephilidae (Trichoptera), LEN56 – Lenarchus (Trichoptera: Limnephilidae), rich – taxa richness, div- diversity, even- macroinvertebrate community evenness, dom3 – dominant three taxa from all samples, mx. depth – maximum depth, degd – degree days, veg. cov – vegetation cover, wood – woody debris, cpue – catch per unit effort. .................................................................................. 42 3. Total abundance of all post-treatment macroinvertebrates samples from 16 lakes in 4 fisheries management categories in the Trinity Alps Wilderness in northern California. ........................................................................................... 43 4. Mean post-treatment abundance (± 1 S.E.) of macroinvertebrates from 16 subalpine lakes in 4 fisheries management categories from the Trinity Alps Wilderness in northern California. ........................................................................ 44 5. Mean post-treatment abundance of Libellula (Odonata: Libellulidae) (± 1 S.E.) from 16 subalpine lakes in 4 fisheries management categories in the Trinity Alps Wilderness in northern California. ......................................... 45 6. Mean macroinvertebrate abundance (± 1 S.E.) from 4 fish removal lakes in the Trinity Alps Wilderness in northern California. Fish were removed after 2003 data were collected. ............................................................................. 46 7. Mean abundance of Libellula (Odonata: Libellulidae) (± 1 S.E.) in four fish removal lakes in the Trinity Alps Wilderness in Northern Californa. Fish were removed after 2003 data were collected. .............................................. 47 8. Mean proportion of Libellula (Odonata: Libellulidae) (± 1 S.E.) to other invertebrate predators from four fish removal lakes in the Trinity Alps viii Wilderness in Northern California. Fish were removed after 2003 data were collected. ............................................................................................... 48 9. Mean proportion of Libellula (Odonata: Libellulidae) (± 1 S.E.) to other invertebrate predators from 16 subalpine lakes in four fisheries management categories in the Trinity Alps Wilderness in northern California. ........................ 49 10. Mean abundance of macroinvertebrates (± 1 S.E.) collected from three habitats in 16 subalpine lakes in the Trinity Alps Wilderness in northern California. ..........................................................................................
Load more

Recommended publications
  • ARTHROPOD COMMUNITIES and PASSERINE DIET: EFFECTS of SHRUB EXPANSION in WESTERN ALASKA by Molly Tankersley Mcdermott, B.A./B.S
    Arthropod communities and passerine diet: effects of shrub expansion in Western Alaska Item Type Thesis Authors McDermott, Molly Tankersley Download date 26/09/2021 06:13:39 Link to Item http://hdl.handle.net/11122/7893 ARTHROPOD COMMUNITIES AND PASSERINE DIET: EFFECTS OF SHRUB EXPANSION IN WESTERN ALASKA By Molly Tankersley McDermott, B.A./B.S. A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Science in Biological Sciences University of Alaska Fairbanks August 2017 APPROVED: Pat Doak, Committee Chair Greg Breed, Committee Member Colleen Handel, Committee Member Christa Mulder, Committee Member Kris Hundertmark, Chair Department o f Biology and Wildlife Paul Layer, Dean College o f Natural Science and Mathematics Michael Castellini, Dean of the Graduate School ABSTRACT Across the Arctic, taller woody shrubs, particularly willow (Salix spp.), birch (Betula spp.), and alder (Alnus spp.), have been expanding rapidly onto tundra. Changes in vegetation structure can alter the physical habitat structure, thermal environment, and food available to arthropods, which play an important role in the structure and functioning of Arctic ecosystems. Not only do they provide key ecosystem services such as pollination and nutrient cycling, they are an essential food source for migratory birds. In this study I examined the relationships between the abundance, diversity, and community composition of arthropods and the height and cover of several shrub species across a tundra-shrub gradient in northwestern Alaska. To characterize nestling diet of common passerines that occupy this gradient, I used next-generation sequencing of fecal matter. Willow cover was strongly and consistently associated with abundance and biomass of arthropods and significant shifts in arthropod community composition and diversity.
    [Show full text]
  • List of Animal Species with Ranks October 2017
    Washington Natural Heritage Program List of Animal Species with Ranks October 2017 The following list of animals known from Washington is complete for resident and transient vertebrates and several groups of invertebrates, including odonates, branchipods, tiger beetles, butterflies, gastropods, freshwater bivalves and bumble bees. Some species from other groups are included, especially where there are conservation concerns. Among these are the Palouse giant earthworm, a few moths and some of our mayflies and grasshoppers. Currently 857 vertebrate and 1,100 invertebrate taxa are included. Conservation status, in the form of range-wide, national and state ranks are assigned to each taxon. Information on species range and distribution, number of individuals, population trends and threats is collected into a ranking form, analyzed, and used to assign ranks. Ranks are updated periodically, as new information is collected. We welcome new information for any species on our list. Common Name Scientific Name Class Global Rank State Rank State Status Federal Status Northwestern Salamander Ambystoma gracile Amphibia G5 S5 Long-toed Salamander Ambystoma macrodactylum Amphibia G5 S5 Tiger Salamander Ambystoma tigrinum Amphibia G5 S3 Ensatina Ensatina eschscholtzii Amphibia G5 S5 Dunn's Salamander Plethodon dunni Amphibia G4 S3 C Larch Mountain Salamander Plethodon larselli Amphibia G3 S3 S Van Dyke's Salamander Plethodon vandykei Amphibia G3 S3 C Western Red-backed Salamander Plethodon vehiculum Amphibia G5 S5 Rough-skinned Newt Taricha granulosa
    [Show full text]
  • Distribution of Nearshore Macroinvertebrates in Lakes of the Northern Cascade Mountains, Washington, USA
    AN ABSTRACT OF THE THESIS OF Robert L. Hoffman, Jr. for the degree of Master of Science in Fisheries Science presented on March 2, 1994 Title: Distribution of Nearshore Macroinvertebrates in Lakes of the Northern Cascade Mountains, Washington, USA. Redacted for Privacy Abstract approved: Wi am J. Liss Although nearshore macroinvertebrates are integral members of high mountain lentic systems, knowledge of ecological factors influencing their distributions is limited. Factors affecting distributions of nearshore macroinvertebrates were investigated, including microhabitatuseand vertebrate predation, in the oligotrophic lakes of North Cascades National Park Service Complex, Washington, USA, and the conformity of distribution with a lake classification system was assessed (Lomnicky, unpublished manuscript; Liss et al. 1991). Forty-one lakes were assigned to six classification categories based on vegetation zone (forest, subalpine, alpine), elevation, and position relative to the west or east side of the crest of the Cascade Range. These classification variables represented fundamental characteristics of the terrestrial environment that indirectly reflected geology and climate. This geoclimatic perspective provided a broad, integrative framework for expressing the physical environment of lakes. Habitat conditions and macroinvertebrate distributions in study lakes were studied from 1989 through 1991. Distributions varied according to vegetation zone, elevation, and crestposition, and reflectedthe concordance between habitat conditions and organism life history requirements. Habitat parameters affecting distributions included water temperature,the kinds of substratesin benthic microhabitats, water chemistry, and, to a limited extent, the presence of vertebrate predators. The number of taxa per lake was positively correlated with maximum temperature and negatively correlated with elevation. Forest zone lakes tended to have the highest number of taxa and alpine lakes the lowest.
    [Show full text]
  • Monitoring Wilderness Stream Ecosystems
    United States Department of Monitoring Agriculture Forest Service Wilderness Stream Rocky Mountain Ecosystems Research Station General Technical Jeffrey C. Davis Report RMRS-GTR-70 G. Wayne Minshall Christopher T. Robinson January 2001 Peter Landres Abstract Davis, Jeffrey C.; Minshall, G. Wayne; Robinson, Christopher T.; Landres, Peter. 2001. Monitoring wilderness stream ecosystems. Gen. Tech. Rep. RMRS-GTR-70. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 137 p. A protocol and methods for monitoring the major physical, chemical, and biological components of stream ecosystems are presented. The monitor- ing protocol is organized into four stages. At stage 1 information is obtained on a basic set of parameters that describe stream ecosystems. Each following stage builds upon stage 1 by increasing the number of parameters and the detail and frequency of the measurements. Stage 4 supplements analyses of stream biotic structure with measurements of stream function: carbon and nutrient processes. Standard methods are presented that were selected or modified through extensive field applica- tion for use in remote settings. Keywords: bioassessment, methods, sampling, macroinvertebrates, production The Authors emphasize aquatic benthic inverte- brates, community dynamics, and Jeffrey C. Davis is an aquatic ecolo- stream ecosystem structure and func- gist currently working in Coastal Man- tion. For the past 19 years he has agement for the State of Alaska. He been conducting research on the received his B.S. from the University long-term effects of wildfires on of Alaska, Anchorage, and his M.S. stream ecosystems. He has authored from Idaho State University. His re- over 100 peer-reviewed journal ar- search has focused on nutrient dy- ticles and 85 technical reports.
    [Show full text]
  • Bibliographia Trichopterorum
    Entry numbers checked/adjusted: 23/10/12 Bibliographia Trichopterorum Volume 4 1991-2000 (Preliminary) ©Andrew P.Nimmo 106-29 Ave NW, EDMONTON, Alberta, Canada T6J 4H6 e-mail: [email protected] [As at 25/3/14] 2 LITERATURE CITATIONS [*indicates that I have a copy of the paper in question] 0001 Anon. 1993. Studies on the structure and function of river ecosystems of the Far East, 2. Rep. on work supported by Japan Soc. Promot. Sci. 1992. 82 pp. TN. 0002 * . 1994. Gunter Brückerman. 19.12.1960 12.2.1994. Braueria 21:7. [Photo only]. 0003 . 1994. New kind of fly discovered in Man.[itoba]. Eco Briefs, Edmonton Journal. Sept. 4. 0004 . 1997. Caddis biodiversity. Weta 20:40-41. ZRan 134-03000625 & 00002404. 0005 . 1997. Rote Liste gefahrdeter Tiere und Pflanzen des Burgenlandes. BFB-Ber. 87: 1-33. ZRan 135-02001470. 0006 1998. Floods have their benefits. Current Sci., Weekly Reader Corp. 84(1):12. 0007 . 1999. Short reports. Taxa new to Finland, new provincial records and deletions from the fauna of Finland. Ent. Fenn. 10:1-5. ZRan 136-02000496. 0008 . 2000. Entomology report. Sandnats 22(3):10-12, 20. ZRan 137-09000211. 0009 . 2000. Short reports. Ent. Fenn. 11:1-4. ZRan 136-03000823. 0010 * . 2000. Nattsländor - Trichoptera. pp 285-296. In: Rödlistade arter i Sverige 2000. The 2000 Red List of Swedish species. ed. U.Gärdenfors. ArtDatabanken, SLU, Uppsala. ISBN 91 88506 23 1 0011 Aagaard, K., J.O.Solem, T.Nost, & O.Hanssen. 1997. The macrobenthos of the pristine stre- am, Skiftesaa, Haeylandet, Norway. Hydrobiologia 348:81-94.
    [Show full text]
  • Microsoft Outlook
    Joey Steil From: Leslie Jordan <[email protected]> Sent: Tuesday, September 25, 2018 1:13 PM To: Angela Ruberto Subject: Potential Environmental Beneficial Users of Surface Water in Your GSA Attachments: Paso Basin - County of San Luis Obispo Groundwater Sustainabilit_detail.xls; Field_Descriptions.xlsx; Freshwater_Species_Data_Sources.xls; FW_Paper_PLOSONE.pdf; FW_Paper_PLOSONE_S1.pdf; FW_Paper_PLOSONE_S2.pdf; FW_Paper_PLOSONE_S3.pdf; FW_Paper_PLOSONE_S4.pdf CALIFORNIA WATER | GROUNDWATER To: GSAs We write to provide a starting point for addressing environmental beneficial users of surface water, as required under the Sustainable Groundwater Management Act (SGMA). SGMA seeks to achieve sustainability, which is defined as the absence of several undesirable results, including “depletions of interconnected surface water that have significant and unreasonable adverse impacts on beneficial users of surface water” (Water Code §10721). The Nature Conservancy (TNC) is a science-based, nonprofit organization with a mission to conserve the lands and waters on which all life depends. Like humans, plants and animals often rely on groundwater for survival, which is why TNC helped develop, and is now helping to implement, SGMA. Earlier this year, we launched the Groundwater Resource Hub, which is an online resource intended to help make it easier and cheaper to address environmental requirements under SGMA. As a first step in addressing when depletions might have an adverse impact, The Nature Conservancy recommends identifying the beneficial users of surface water, which include environmental users. This is a critical step, as it is impossible to define “significant and unreasonable adverse impacts” without knowing what is being impacted. To make this easy, we are providing this letter and the accompanying documents as the best available science on the freshwater species within the boundary of your groundwater sustainability agency (GSA).
    [Show full text]
  • Seasonal Patterns of Abundance of Tundra Arthropods Near Barrow
    Seasonal Patterns of Abundance of Tundra Arthropods near Barrow S. F. MacLEAN, JR.,l and F. A. PITELKA2 ABSTRACT. Arthropods active on the surface of the tundra near Barrow, Alaska, were trapped throughout four summer seasons (1966-1969), using "sticky-board" traps. More than 95 per cent of the arthropods (excluding Acarina and Collembola) captured were of the order Diptera. Adults of most species of Diptera emerged in the middle two weeks of July; the abundance of arthropods on the tundra surface was maximal at that time. Year-to-year variations in abundance of various arthro- pod taxa are related to prevailing weather conditions and to the cycle of tundra disturbance and recovery associated with the abundance of brown lemmings. RÉSUMÉ. Modalités de l'abondance des arthropodes de la toundra selon les sai- sons, prèsde Barrow. Près de Barrow, Alaska, on a, au cours des quatre étés (1966-1969), capturé au moyen de pièges à glu les arthropodes actifs à la surface de la toundra. Plus de 95 pour cent des arthropodes capturbs (à l'exclusion des Aca- riens et des Collemboles) appartenaient à l'ordre des Diptères. Les adultes de la plupart des espèces de Diptères apparaissaient au cours des deux semaines du milieu de juillet : c'est à ce moment que les arthropodes étaient les plus nombreux à la surface de la toundra.Les variations annuelles d'abondance des divers taxa d'arthro- podes sont liées aux conditions du temps et au cycle de déprédation et de reprise de la toundra selon l'abondance des lemmings. PE3IOME. Ceaoxn~ueu3~ewewu~ e uucaewwomu unenuCrnoHoeux (Arthropoda) ua nosepx~mumywdpu e paüowe Bappoy (Amma).
    [Show full text]
  • Assessment of the Environmental Effects Associated with Wooden Bridges Preserved with Creosote, Pentachlorophenol, Or Chromated Copper Arsenate
    United States In cooperation with the Department of Agriculture Assessment of the United States Forest Service Department of Transportation Environmental Effects Forest Products Federal Laboratory Highway Associated With Wooden Administration Research Paper Bridges Preserved With FPL−RP−587 Creosote, Pentachlorophenol, or Chromated Copper Arsenate Kenneth M. Brooks Abstract However, low levels of PAHs were observed in the sedi- ments under and immediately downstream from these Timber bridges provide an economical alternative to concrete bridges. Pentachlorophenol concentrations did not approach and steel structures, particularly in rural areas with light to toxicological benchmarks. Sediment concentrations of naph- moderate vehicle traffic. Wooden components of these thalene, acenaphthylene, and phenanthrene exceeded the bridges are treated with chromated copper arsenate type C probable effect level. Metal levels at the bridges treated with (CCA), pentachlorophenol, or creosote to prolong the life of CCA were less than predicted effect levels, in spite of ques- the structure from a few years to many decades. This results tionable construction practices. Adverse biological effects in reduced transportation infrastructure costs and increased were not observed in the aquatic invertebrate community or public safety. However, the preservative used to treat the laboratory bioassays conducted on water and sediments wooden components in timber bridges is lost to the environ- sampled at each of the bridges. Results of this study reveal ment in small amounts over time. This report describes the the need to follow the construction information found in Best concentration of wood preservatives lost to adjacent envi- Management Practices for the Use of Treated Wood In ronments and the biological response to these preservatives Aquatic Environments published by Western Wood Preserv- as environmental contaminants.
    [Show full text]
  • Refinement of the Basin-Wide Index of Biotic Integrity for Non-Tidal Streams and Wadeable Rivers in the Chesapeake Bay Watershed
    Refinement of the Basin-Wide Index of Biotic Integrity for Non-Tidal Streams and Wadeable Rivers in the Chesapeake Bay Watershed APPENDICES Appendix A: Taxonomic Classification Appendix B: Taxonomic Attributes Appendix C: Taxonomic Standardization Appendix D: Rarefaction Appendix E: Biological Metric Descriptions Appendix F: Abiotic Parameters for Evaluating Stream Environment Appendix G: Stream Classification Appendix H: HUC12 Watershed Characteristics in Bioregions Appendix I: Index Methodologies Appendix J: Scoring Methodologies Appendix K: Index Performance, Accuracy, and Precision Appendix L: Narrative Ratings and Maps of Index Scores Appendix M: Potential Biases in the Regional Index Ratings Appendix Citations Appendix A: Taxonomic Classification All taxa reported in Chessie BIBI database were assigned the appropriate Phylum, Subphylum, Class, Subclass, Order, Suborder, Family, Subfamily, Tribe, and Genus when applicable. A portion of the taxa reported were reported under an invalid name according to the ITIS database. These taxa were subsequently changed to the taxonomic name deemed valid by ITIS. Table A-1. The taxonomic hierarchy of stream macroinvertebrate taxa included in the Chesapeake Bay non-tidal database.
    [Show full text]
  • DBR Y W OREGON STATE
    The Distribution and Biology of the A. 15 Oregon Trichoptera PEE .1l(-.", DBR Y w OREGON STATE Technical Bulletin 134 AGRICULTURAL 11 EXPERIMENTI STATION Oregon State University Corvallis, Oregon INovember 1976 FOREWORD There are four major groups of insectswhoseimmature stages are almost all aquatic: the caddisflies (Trichoptera), the dragonflies and damselflies (Odonata), the mayflies (Ephemeroptera), and the stoneflies (Plecoptera). These groups are conspicuous and important elements in most freshwater habitats. There are about 7,000 described species of caddisflies known from the world, and about 1,200 of these are found in America north of Mexico. All play a significant ro'e in various aquatic ecosystems, some as carnivores and others as consumers of plant tissues. The latter group of species is an important converter of plant to animal biomass. Both groups provide food for fish, not only in larval but in pupal and adult stages as well. Experienced fishermen have long imitated these larvae and adults with a wide variety of flies and other artificial lures. It is not surprising, then, that the caddisflies have been studied in detail in many parts of the world, and Oregon, with its wide variety of aquatic habitats, is no exception. Any significant accumulation of these insects, including their various develop- mental stages (egg, larva, pupa, adult) requires the combined efforts of many people. Some collect, some describe new species or various life stages, and others concentrate on studying and describing the habits of one or more species. Gradually, a body of information accumulates about a group of insects for a particular region, but this information is often widely scattered and much effort is required to synthesize and collate the knowledge.
    [Show full text]
  • Lineage Sorting by Parameres in Limnephilinae Subfamily (Trichoptera): with Description of a New Tribe, New Genera and New Species
    Opusc. Zool. Budapest, 2019, 50(Supplementum 1): 03–98 Lineage sorting by parameres in Limnephilinae subfamily (Trichoptera): with description of a new tribe, new genera and new species 1 2 3 4 5 6 J. OLÁH , T. ANDERSEN , S. BESHKOV , A. BILALLI , G. COPPA , H. IBRAHIMI , K.A. 7 8 9 10 11 12 JOHANSON , T. KOVÁCS , W. MEY , M. MUSLIU J. OLÁH JR & A. RUIZ-GARCIA 1János Oláh, Residence postal address: Tarján u. 28, H-4032 Debrecen, Hungary, [email protected] 2Trond Andersen, Department of Natural History, University Museum of Bergen, University of Bergen, P.O. Box 7800, N-5020 Bergen, Norway, [email protected] 3Stoyan Beshkov, National Museum of Natural History, 1 Tsar Osvoboditel Blvd. 1000 Sofia, Bulgaria, [email protected] 4Astrit Bilalli, University of Peja "Haxhi Zeka", Faculty of Agribusiness, “UÇK” street, 30000 Pejë, Republic of Kosovo, [email protected] 5Gennaro Coppa, 1, rue du Courlis, F-08350 Villers-sur-Bar, France, [email protected] 6Halil Ibrahimi, University of Prishtina, Faculty of Mathematics and Natural Sciences, Department of Biology, Mother Teresa p.n., 10000 Prishtina, Kosovo, [email protected] 7Kjell Arne Johanson, Swedish Museum of Natural History, Department of Zoology, Box 50007, SE-10405 Stockholm, Sweden, [email protected] 8Tibor Kovács, Mátra Museum of Hungarian Natural History Museum, Kossuth Lajos u. 40, H-3200 Gyöngyös, Hungary, [email protected] 9Wolfram Mey, Museum für Naturkunde, Humboldt-Universität, Invalidenstr. 43, D-10115 Berlin, Germany, [email protected] 10Milaim Musliu, University of Peja "Haxhi Zeka", Faculty of Agribusiness, “UÇK” street, 30000 Pejë, Republic of Kosovo, [email protected] 11János Oláh jr., Residence postal address: Tarján u.
    [Show full text]
  • An Improved Biotic Index of Organic Stream Pollution
    The Great Lakes Entomologist Volume 20 Number 1 - Spring 1987 Number 1 - Spring 1987 Article 7 April 1987 An Improved Biotic Index of Organic Stream Pollution William L. Hilsenhoff University of Wisconsin Follow this and additional works at: https://scholar.valpo.edu/tgle Part of the Entomology Commons Recommended Citation Hilsenhoff, William L. 1987. "An Improved Biotic Index of Organic Stream Pollution," The Great Lakes Entomologist, vol 20 (1) Available at: https://scholar.valpo.edu/tgle/vol20/iss1/7 This Peer-Review Article is brought to you for free and open access by the Department of Biology at ValpoScholar. It has been accepted for inclusion in The Great Lakes Entomologist by an authorized administrator of ValpoScholar. For more information, please contact a ValpoScholar staff member at [email protected]. Hilsenhoff: An Improved Biotic Index of Organic Stream Pollution 1987 THE GREAT LAKES ENTOMOLOGIST 31 AN IMPROVED BIOTIC INDEX OF ORGANIC STREAM POLLUTIONl William L. Hilsenhoff2 ABSTRACT Major improvements were made in using a biotic index of the arthropod fauna to evaluate organic stream pollution. All tolerance values were reevaluated, many were changed, and the scale for tolerance values was expanded to 0-10 to provide greatcr precision. Keys to larvae of Ceratopsyche have been developed and tolerance values for species in this important genus are provided. Sorting of samples in the laboratory instead of in the field is recommended, and directions for processing and evaluating samples are included. A "saprobic index" (Pantel and Buck 1955) and a "biotic indcx" (Chutter 1972) werc proposed for evaluating the water quality of streams through a study of their fauna.
    [Show full text]