DOCSLIB.ORG

Patch Dynamics of Desert Fishes in the Arid Wetlands of Western Utah

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Patch Dynamics of Desert Fishes in the Arid Wetlands of Western Utah AN ABSTRACT OF THE THESIS OF Jessica Sáenz for the degree of Master of Science in Fisheries Science presented on March 21, 2014. Title: Patch Dynamics of Desert Fishes in the Arid Wetlands of Western Utah Abstract approved: ______________________________________________________ James T. Peterson The conservation of declining desert fish species requires the identification of relations between fish population dynamics and their environments. Dynamic occupancy modeling, an approach that requires less information than traditional mark-recapture studies, may help identify important factors affecting population processes and aid desert fish conservation and restoration efforts. I used dynamic multi-season occupancy models for two analyses (multi-state and multi-species) to evaluate the influence of patch-level characteristics (patch percent open water, average patch depth, patch area), grazing damage, species interactions, population differences, patch connectivity and environmental variation (seasonal precipitation and temperature) on the patch dynamics (colonization, persistence, reproduction) of two desert chub species found in Snake Valley, UT. My results indicate that there was the strongest evidence according to model weights that patch dynamics in this system were influenced by patch-level characteristics (patch percent open water and average patch depth), grazing damage, population differences, biotic interactions, and winter precipitation rather than landscape level features such as connectivity. I observed positive effects of patch percent open water and average patch depth on least chub and Utah chub persistence. I also found that grazing damage increased their persistence at the medium damage level but decreased least chub and Utah chub colonization at the high grazing damage level. Least chub and Utah chub colonization varied between the two populations (study areas) with a higher probability of colonization at Bishop Springs than at Gandy Salt Marsh. In addition, I found some evidence that biotic interactions between least chub and Utah chub may be occurring in this system. Least chub were less likely to colonize patches previously occupied by Utah chub but surprisingly there was little evidence that these species interactions affected least chub persistence. Least chub reproduction increased with winter precipitation and was higher at Gandy Salt Marsh than Bishop Springs. The use of dynamic occupancy modeling in desert spring wetland complexes may provide a valuable tool for managers tasked with conserving at- risk desert fish species. ©Copyright by Jessica Sáenz March 21, 2014 All Rights Reserved Patch Dynamics of Desert Fishes in the Arid Wetlands of Western Utah by Jessica Sáenz A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Science Presented March 21, 2014 Commencement June 2014 Master of Science thesis of Jessica Sáenz presented on March 21, 2014 APPROVED: Major Professor, representing Fisheries Science Head of the Department of Fisheries and Wildlife Dean of the Graduate School I understand that my thesis will become part of the permanent collection of Oregon State University libraries. My signature below authorizes release of my thesis to any reader upon request. Jessica Sáenz, Author ACKNOWLEDGEMENTS This research was a collaborative effort including many agencies but primarily with the Bureau of Land Management, US Fish and Wildlife Service, and Utah Department of Natural Resources. I would like to thank the Bureau of Land Management for funding this research as well as Utah Department of Natural Resources (Chris Crockett, Mark Grover, Paul Thompson, and Kevin Wheeler) for providing a long term data set and allowing me to join them on several sampling occasions. I would like to thank my major advisor, Jim Peterson, for all of his assistance in data analysis, painful thesis editing and of course learning R. I would also like to thank my committee Selina Heppell and Matthew Betts for their feedback, and comments on my proposal and thesis and Susan Carozza for serving as my graduate school representative. In addition, I would like to thank the Peterson Lab (a.k.a. Kevin McDonnell) for providing assistance with R code (you were a life saver) and general moral support throughout this process. Last but not least, I am very thankful to my friends and family for their unwavering support and love throughout this process. I would especially like to thank my mom for instilling in me the importance of an education and always pushing me to continue my studies. I would like to thank my friends, new and old, for their companionship and help in maintaining my sanity. I would like to thank my fiancé Cody McKee for being supportive of my decision to come to Oregon and sticking with me these last few years. I am very lucky to have such an amazing group of people in my life and I am forever thankful. TABLE OF CONTENTS Page INTRODUCTION .................................................................................................. 1 Research Objectives .................................................................................................. 3 LITERATURE REVIEW ....................................................................................... 5 Physical and Chemical Environment ............................................................................ 6 Environmental Variability .......................................................................................... 9 Life History and Biotic Interactions ............................................................................ 11 Anthropogenic Effects ............................................................................................. 12 Desert Chubs ......................................................................................................... 18 Fish Population Dynamics ........................................................................................ 23 METHODS ........................................................................................................... 28 Study Location ....................................................................................................... 28 Data Collection and Compilation ............................................................................... 29 Data Analysis ........................................................................................................ 32 Evaluation of spatial replicate sample design ............................................................ 34 Dynamic Multi-state Occupancy Analysis ................................................................ 37 Dynamic Multi-Species Occupancy Analysis ............................................................ 41 RESULTS ............................................................................................................. 62 Dynamic Multi-state Occupancy Analysis ................................................................... 65 Detection Probability ........................................................................................... 66 Initial Occupancy ................................................................................................ 66 Persistence ......................................................................................................... 66 Colonization ....................................................................................................... 67 Reproduction ...................................................................................................... 68 TABLE OF CONTENTS (Continued) Page Dynamic Multi-Species Occupancy Analysis .................................................................. 68 Probability of Detection ........................................................................................ 69 Initial Occupancy ................................................................................................ 69 Colonization ....................................................................................................... 70 Extinction .......................................................................................................... 71 DISCUSSION ....................................................................................................... 94 Patch Dynamics ..................................................................................................... 94 Reproduction ....................................................................................................... 100 Detection ............................................................................................................ 101 Management Implications ...................................................................................... 102 CONCLUSION ................................................................................................... 104 LITERATURE CITED ....................................................................................... 107 LIST OF FIGURES Figure Page 3.1. Boundary of the Bonneville Basin with Snake Valley, Utah and two least chub study populations…………………………………...……………… 59 3.2. Boundary of Snake Valley, UT with Gandy Salt Marsh and Bishop Springs wetland complexes. Inset shows individual patches within each wetland complex……………………………………………………………….. 60 3.3. Aerial photographs of Gandy Salt Marsh and Bishop Springs with waterbody locations.......................................................……………………...... 61 4.1.
Load more

Recommended publications
  • In the Weber River, Utah
    An International Periodical Promoting Conservation and Biodiversity Southwestern United States—Mexico—Central America Una Revista Internacional para Fomentar la Conservación y Biodiversidad El Suroeste de USA—México—Centroamérica STATUS AND STRUCTURE OF TWO POPULATIONS OF THE BLUEHEAD SUCKER (CATOSTOMUS DISCOBOLUS) IN THE WEBER RIVER, UTAH P. A ARON WEBBER,PAUL D. THOMPSON,* AND PHAEDRA BUDY Colorado River Fishery Project, United States Fish and Wildlife Service, 1380 South 2350 West, Vernal, UT 84078 (PAW) Utah Division of Wildlife Resources, 515 East 5300 South, Ogden, UT 84405 (PDT) United States Geological Survey, Utah Cooperative Fish and Wildlife Research Unit, Department of Watershed Sciences, Utah State University, Logan, UT 8432 (PB) * Correspondent: [email protected] THE SOUTHWESTERN NATURALIST 57(3): 267–276 SEPTEMBER 2012 STATUS AND STRUCTURE OF TWO POPULATIONS OF THE BLUEHEAD SUCKER (CATOSTOMUS DISCOBOLUS) IN THE WEBER RIVER, UTAH P. A ARON WEBBER,PAUL D. THOMPSON,* AND PHAEDRA BUDY Colorado River Fishery Project, United States Fish and Wildlife Service, 1380 South 2350 West, Vernal, UT 84078 (PAW) Utah Division of Wildlife Resources, 515 East 5300 South, Ogden, UT 84405 (PDT) United States Geological Survey, Utah Cooperative Fish and Wildlife Research Unit, Department of Watershed Sciences, Utah State University, Logan, UT 8432 (PB) * Correspondent: [email protected] ABSTRACT—We compared two populations of the bluehead sucker (Catostomus discobolus) during 2007–2009 in the Weber River, Davis, Summit, and Weber counties, Utah. We estimated 225 and 546 individuals in these populations. Based on recaptured, PIT-tagged fish, annual survival of adults (202–575 mm total length) was high (77%); however, our top model indicated mortality increased with size (i.e., senescence).
    [Show full text]
  • In Panguitch Lake and Navajo Lake, Utah, from Scales and Opercular Bones
    Utah State University DigitalCommons@USU All Graduate Theses and Dissertations Graduate Studies 5-1954 Age and Growth of the Utah Chub, Gila atraria (Girard), in Panguitch Lake and Navajo Lake, Utah, From Scales and Opercular Bones John M. Neuhold Follow this and additional works at: https://digitalcommons.usu.edu/etd Part of the Aquaculture and Fisheries Commons Recommended Citation Neuhold, John M., "Age and Growth of the Utah Chub, Gila atraria (Girard), in Panguitch Lake and Navajo Lake, Utah, From Scales and Opercular Bones" (1954). All Graduate Theses and Dissertations. 3769. https://digitalcommons.usu.edu/etd/3769 This Thesis is brought to you for free and open access by the Graduate Studies at DigitalCommons@USU. It has been accepted for inclusion in All Graduate Theses and Dissertations by an authorized administrator of DigitalCommons@USU. For more information, please contact [email protected]. AGE AND GROWTH OF THE UTAH CHUB, Ql1! ATRARIA (GIRARD), IN PANGUITCH LAKE AND NAVAJO LA!E, UTAH, FROM SCALES AND OPERCULAR BONES by John M. Beuhold A thesis submitted in partial fulfillment of the requirements for the degree ot MASTER OF SCIENCE ln Fishery Management UTAH STATE AGRICULTURAL COLLEGE Logan, Utah 1954 ABSTRACT Previous literature indicates the opercular bone as a . useful t ool for the determination of age and growth of fish. The reliability and validity _o f this method is tested for two populations of Utah chub. Age and growth are calculated for 222 Utah chub collected from Panguitch Lake and 212 Utah chub collected from Navajo Lake, southern Utah, in 1952-1953 from both scales and opercular bones.
    [Show full text]
  • Endangered Species
    FEATURE: ENDANGERED SPECIES Conservation Status of Imperiled North American Freshwater and Diadromous Fishes ABSTRACT: This is the third compilation of imperiled (i.e., endangered, threatened, vulnerable) plus extinct freshwater and diadromous fishes of North America prepared by the American Fisheries Society’s Endangered Species Committee. Since the last revision in 1989, imperilment of inland fishes has increased substantially. This list includes 700 extant taxa representing 133 genera and 36 families, a 92% increase over the 364 listed in 1989. The increase reflects the addition of distinct populations, previously non-imperiled fishes, and recently described or discovered taxa. Approximately 39% of described fish species of the continent are imperiled. There are 230 vulnerable, 190 threatened, and 280 endangered extant taxa, and 61 taxa presumed extinct or extirpated from nature. Of those that were imperiled in 1989, most (89%) are the same or worse in conservation status; only 6% have improved in status, and 5% were delisted for various reasons. Habitat degradation and nonindigenous species are the main threats to at-risk fishes, many of which are restricted to small ranges. Documenting the diversity and status of rare fishes is a critical step in identifying and implementing appropriate actions necessary for their protection and management. Howard L. Jelks, Frank McCormick, Stephen J. Walsh, Joseph S. Nelson, Noel M. Burkhead, Steven P. Platania, Salvador Contreras-Balderas, Brady A. Porter, Edmundo Díaz-Pardo, Claude B. Renaud, Dean A. Hendrickson, Juan Jacobo Schmitter-Soto, John Lyons, Eric B. Taylor, and Nicholas E. Mandrak, Melvin L. Warren, Jr. Jelks, Walsh, and Burkhead are research McCormick is a biologist with the biologists with the U.S.
    [Show full text]
  • ECOLOGY of NORTH AMERICAN FRESHWATER FISHES
    ECOLOGY of NORTH AMERICAN FRESHWATER FISHES Tables STEPHEN T. ROSS University of California Press Berkeley Los Angeles London © 2013 by The Regents of the University of California ISBN 978-0-520-24945-5 uucp-ross-book-color.indbcp-ross-book-color.indb 1 44/5/13/5/13 88:34:34 AAMM uucp-ross-book-color.indbcp-ross-book-color.indb 2 44/5/13/5/13 88:34:34 AAMM TABLE 1.1 Families Composing 95% of North American Freshwater Fish Species Ranked by the Number of Native Species Number Cumulative Family of species percent Cyprinidae 297 28 Percidae 186 45 Catostomidae 71 51 Poeciliidae 69 58 Ictaluridae 46 62 Goodeidae 45 66 Atherinopsidae 39 70 Salmonidae 38 74 Cyprinodontidae 35 77 Fundulidae 34 80 Centrarchidae 31 83 Cottidae 30 86 Petromyzontidae 21 88 Cichlidae 16 89 Clupeidae 10 90 Eleotridae 10 91 Acipenseridae 8 92 Osmeridae 6 92 Elassomatidae 6 93 Gobiidae 6 93 Amblyopsidae 6 94 Pimelodidae 6 94 Gasterosteidae 5 95 source: Compiled primarily from Mayden (1992), Nelson et al. (2004), and Miller and Norris (2005). uucp-ross-book-color.indbcp-ross-book-color.indb 3 44/5/13/5/13 88:34:34 AAMM TABLE 3.1 Biogeographic Relationships of Species from a Sample of Fishes from the Ouachita River, Arkansas, at the Confl uence with the Little Missouri River (Ross, pers. observ.) Origin/ Pre- Pleistocene Taxa distribution Source Highland Stoneroller, Campostoma spadiceum 2 Mayden 1987a; Blum et al. 2008; Cashner et al. 2010 Blacktail Shiner, Cyprinella venusta 3 Mayden 1987a Steelcolor Shiner, Cyprinella whipplei 1 Mayden 1987a Redfi n Shiner, Lythrurus umbratilis 4 Mayden 1987a Bigeye Shiner, Notropis boops 1 Wiley and Mayden 1985; Mayden 1987a Bullhead Minnow, Pimephales vigilax 4 Mayden 1987a Mountain Madtom, Noturus eleutherus 2a Mayden 1985, 1987a Creole Darter, Etheostoma collettei 2a Mayden 1985 Orangebelly Darter, Etheostoma radiosum 2a Page 1983; Mayden 1985, 1987a Speckled Darter, Etheostoma stigmaeum 3 Page 1983; Simon 1997 Redspot Darter, Etheostoma artesiae 3 Mayden 1985; Piller et al.
    [Show full text]
  • Teleostei: Cyprinidae), and Its Related Congeners in Sonora, Mexico
    Available online at www.sciencedirect.com Revista Mexicana de Biodiversidad Revista Mexicana de Biodiversidad 87 (2016) 390–398 www.ib.unam.mx/revista/ Taxonomy and systematics Morphometric and meristic characterization of the endemic Desert chub Gila eremica (Teleostei: Cyprinidae), and its related congeners in Sonora, Mexico Caracterización morfométrica y merística de la carpa del desierto endémica Gila eremica (Teleostei: Cyprinidae) y sus congéneres relacionados en Sonora, México a b c Carlos A. Ballesteros-Córdova , Gorgonio Ruiz-Campos , Lloyd T. Findley , a a a,∗ José M. Grijalva-Chon , Luis E. Gutiérrez-Millán , Alejandro Varela-Romero a Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Luis Donaldo Colosio s/n, entre Sahuaripa y Reforma, Col. Centro, 83000 Hermosillo, Sonora, Mexico b Facultad de Ciencias, Universidad Autónoma de Baja California, P.O. Box 233, 22800 Ensenada, Baja California, Mexico c Centro de Investigación en Alimentación y Desarrollo, A.C./Unidad Guaymas, Carretera al Varadero Nacional km 6.6, Col. Las Playitas, 85480 Guaymas, Sonora, Mexico Received 29 July 2015; accepted 24 November 2015 Available online 16 May 2016 Abstract The Desert chub, Gila eremica DeMarais, 1991 is a freshwater fish endemic to Northwest Mexico, being described from the Sonora, Matape and Yaqui River basins in Sonora, Mexico. The recent discovery of 2 isolated small populations from the known distribution for this taxon makes necessary an evaluation to determine their specific taxonomical identities (herein designated as G. cf. eremica). Thirty-three morphometric and 6 meristic characters were evaluated in 219 specimens of several populations of the genus Gila in Sonora, including all the known populations of G.
    [Show full text]
  • The Global Status of Freshwater Fish Age Validation Studies and a Prioritization Framework for Further Research Jonathan J
    University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Nebraska Cooperative Fish & Wildlife Research Nebraska Cooperative Fish & Wildlife Research Unit -- Staff ubP lications Unit 2015 The Global Status of Freshwater Fish Age Validation Studies and a Prioritization Framework for Further Research Jonathan J. Spurgeon University of Nebraska–Lincoln, [email protected] Martin J. Hamel University of Nebraska-Lincoln, [email protected] Kevin L. Pope U.S. Geological Survey—Nebraska Cooperative Fish and Wildlife Research Unit,, [email protected] Mark A. Pegg University of Nebraska-Lincoln, [email protected] Follow this and additional works at: http://digitalcommons.unl.edu/ncfwrustaff Part of the Aquaculture and Fisheries Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Natural Resource Economics Commons, Natural Resources and Conservation Commons, and the Water Resource Management Commons Spurgeon, Jonathan J.; Hamel, Martin J.; Pope, Kevin L.; and Pegg, Mark A., "The Global Status of Freshwater Fish Age Validation Studies and a Prioritization Framework for Further Research" (2015). Nebraska Cooperative Fish & Wildlife Research Unit -- Staff Publications. 203. http://digitalcommons.unl.edu/ncfwrustaff/203 This Article is brought to you for free and open access by the Nebraska Cooperative Fish & Wildlife Research Unit at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Nebraska Cooperative Fish & Wildlife Research Unit -- Staff ubP lications by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Reviews in Fisheries Science & Aquaculture, 23:329–345, 2015 CopyrightO c Taylor & Francis Group, LLC ISSN: 2330-8249 print / 2330-8257 online DOI: 10.1080/23308249.2015.1068737 The Global Status of Freshwater Fish Age Validation Studies and a Prioritization Framework for Further Research JONATHAN J.
    [Show full text]
  • LATE MIOCENE FISHES of the CACHE VALLEY MEMBER, SALT LAKE FORMATION, UTAH and IDAHO By
    LATE MIOCENE FISHES OF THE CACHE VALLEY MEMBER, SALT LAKE FORMATION, UTAH AND IDAHO by PATRICK H. MCCLELLAN AND GERALD R. SMITH MISCELLANEOUS PUBLICATIONS MUSEUM OF ZOOLOGY, UNIVERSITY OF MICHIGAN, 208 Ann Arbor, December 17, 2020 ISSN 0076-8405 P U B L I C A T I O N S O F T H E MUSEUM OF ZOOLOGY, UNIVERSITY OF MICHIGAN NO. 208 GERALD SMITH, Editor The publications of the Museum of Zoology, The University of Michigan, consist primarily of two series—the Miscellaneous Publications and the Occasional Papers. Both series were founded by Dr. Bryant Walker, Mr. Bradshaw H. Swales, and Dr. W. W. Newcomb. Occasionally the Museum publishes contributions outside of these series. Beginning in 1990 these are titled Special Publications and Circulars and each is sequentially numbered. All submitted manuscripts to any of the Museum’s publications receive external peer review. The Occasional Papers, begun in 1913, serve as a medium for original studies based principally upon the collections in the Museum. They are issued separately. When a sufficient number of pages has been printed to make a volume, a title page, table of contents, and an index are supplied to libraries and individuals on the mailing list for the series. The Miscellaneous Publications, initiated in 1916, include monographic studies, papers on field and museum techniques, and other contributions not within the scope of the Occasional Papers, and are published separately. Each number has a title page and, when necessary, a table of contents. A complete list of publications on Mammals, Birds, Reptiles and Amphibians, Fishes, I nsects, Mollusks, and other topics is available.
    [Show full text]
  • Drought, Dispersal, and Community Dynamics in Arid-Land Streams
    AN ABSTRACT OF THE DISSERTATION OF Michael T. Bogan for the degree of Doctor of Philosophy in Zoology presented on July 10, 2012. Title: Drought, Dispersal, and Community Dynamics in Arid-land Streams Abstract approved: _____________________________________ David A. Lytle Understanding the mechanisms that regulate local species diversity and community structure is a perennial goal of ecology. Local community structure can be viewed as the result of numerous local and regional processes; these processes act as filters that reduce the regional species pool down to the observed local community. In stream ecosystems, the natural flow regime (including the timing, magnitude, and duration of high and low flow events) is widely recognized as a primary regulator of local diversity and community composition. This is especially true in arid- land streams, where low- and zero-flow events can occur frequently and for extended periods of time (months to years). Additionally, wetted habitat patches in arid-land stream networks are often fragmented within and among stream networks. Thus dispersal between isolated aquatic patches may also play a large role in regulating local communities. In my dissertation, I explored the roles that drought, dispersal, and local habitat factors play in structuring arid-land stream communities. I examined the impact of flow permanence and seasonal variation in flow and other abiotic factors on aquatic communities at both fine spatial scales over a long time period (8 years; Chapter 2) and at a broad spatial scale over a shorter time period (1-2 years; Chapter 4). Additionally, I quantified aquatic invertebrate aerial dispersal over moderate spatial scales (≤ 0.5 km) by conducting a colonization experiment using artificial stream pools placed along and inland from two arid-land streams (Chapter 4).
    [Show full text]
  • Native Unionoida Surveys, Distribution, and Metapopulation Dynamics in the Jordan River-Utah Lake Drainage, UT
    Version 1.5 Native Unionoida Surveys, Distribution, and Metapopulation Dynamics in the Jordan River-Utah Lake Drainage, UT Report To: Wasatch Front Water Quality Council Salt Lake City, UT By: David C. Richards, Ph.D. OreoHelix Consulting Vineyard, UT 84058 email: [email protected] phone: 406.580.7816 May 26, 2017 Native Unionoida Surveys and Metapopulation Dynamics Jordan River-Utah Lake Drainage 1 One of the few remaining live adult Anodonta found lying on the surface of what was mostly comprised of thousands of invasive Asian clams, Corbicula, in Currant Creek, a former tributary to Utah Lake, August 2016. Summary North America supports the richest diversity of freshwater mollusks on the planet. Although the western USA is relatively mollusk depauperate, the one exception is the historically rich molluskan fauna of the Bonneville Basin area, including waters that enter terminal Great Salt Lake and in particular those waters in the Jordan River-Utah Lake drainage. These mollusk taxa serve vital ecosystem functions and are truly a Utah natural heritage. Unfortunately, freshwater mollusks are also the most imperiled animal groups in the world, including those found in UT. The distribution, status, and ecologies of Utah’s freshwater mussels are poorly known, despite this unique and irreplaceable natural heritage and their protection under the Clean Water Act. Very few mussel specific surveys have been conducted in UT which requires specialized training, survey methods, and identification. We conducted the most extensive and intensive survey of native mussels in the Jordan River-Utah Lake drainage to date from 2014 to 2016 using a combination of reconnaissance and qualitative mussel survey methods.
    [Show full text]
  • Speckled Dace, Rhinichthys Osculus, in Canada, Prepared Under Contract with Environment and Climate Change Canada
    COSEWIC Assessment and Status Report on the Speckled Dace Rhinichthys osculus in Canada ENDANGERED 2016 COSEWIC status reports are working documents used in assigning the status of wildlife species suspected of being at risk. This report may be cited as follows: COSEWIC. 2016. COSEWIC assessment and status report on the Speckled Dace Rhinichthys osculus in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. xi + 51 pp. (http://www.registrelep-sararegistry.gc.ca/default.asp?lang=en&n=24F7211B-1). Previous report(s): COSEWIC 2006. COSEWIC assessment and update status report on the speckled dace Rhinichthys osculus in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vi + 27 pp. (www.sararegistry.gc.ca/status/status_e.cfm). COSEWIC 2002. COSEWIC assessment and update status report on the speckled dace Rhinichthys osculus in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. vi + 36 pp. (www.sararegistry.gc.ca/status/status_e.cfm). Peden, A. 2002. COSEWIC assessment and update status report on the speckled dace Rhinichthys osculus in Canada, in COSEWIC assessment and update status report on the speckled dace Rhinichthys osculus in Canada. Committee on the Status of Endangered Wildlife in Canada. Ottawa. 1-36 pp. Peden, A.E. 1980. COSEWIC status report on the speckled dace Rhinichthys osculus in Canada. Committee on the Status of Endangered Wildlife in Canada. 1-13 pp. Production note: COSEWIC would like to acknowledge Andrea Smith (Hutchinson Environmental Sciences Ltd.) for writing the status report on the Speckled Dace, Rhinichthys osculus, in Canada, prepared under contract with Environment and Climate Change Canada.
    [Show full text]
  • Classification Success of Species Within the Gila Robusta Complex Using Morphometric and Meristic Characters—A Reexamination Authors: Julie Meka Carter, Matthew J
    Classification Success of Species within the Gila robusta Complex Using Morphometric and Meristic Characters—A Reexamination Authors: Julie Meka Carter, Matthew J. Clement, Andy S. Makinster, Clayton D. Crowder, and Brian T. Hickerson Source: Copeia, 106(2) : 279-291 Published By: American Society of Ichthyologists and Herpetologists URL: https://doi.org/10.1643/CG-17-614 BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses. Your use of this PDF, the BioOne Complete website, and all posted and associated content indicates your acceptance of BioOne’s Terms of Use, available at www.bioone.org/terms-of-use. Usage of BioOne Complete content is strictly limited to personal, educational, and non-commercial use. Commercial inquiries or rights and permissions requests should be directed to the individual publisher as copyright holder. BioOne sees sustainable scholarly publishing as an inherently collaborative enterprise connecting authors, nonprofit publishers, academic institutions, research libraries, and research funders in the common goal of maximizing access to critical research. Downloaded From: https://bioone.org/journals/Copeia on 17 Jun 2019 Terms of Use: https://bioone.org/terms-of-use Access provided by Arizona Game & Fish Department Copeia 106, No. 2, 2018, 279–291 Classification Success of Species within the Gila robusta Complex Using Morphometric and Meristic Characters—A Reexamination Julie Meka Carter1, Matthew J. Clement2, Andy S. Makinster3,4, Clayton D. Crowder3, and Brian T. Hickerson3,5 Three cyprinids often referred to as the Gila robusta complex, G.
    [Show full text]
  • Complex Interactions Between Native and Invasive Species: Investigating the Differential Displacement of Two Topminnows Native to Nebraska
    Aquatic Invasions (2015) Volume 10, Issue 3: 339–346 doi: http://dx.doi.org/10.3391/ai.2015.10.3.09 Open Access © 2015 The Author(s). Journal compilation © 2015 REABIC Research Article Complex interactions between native and invasive species: investigating the differential displacement of two topminnows native to Nebraska David A. Schumann1a*, W. Wyatt Hoback1b and Keith D. Koupal2 1University of Nebraska at Kearney, Department of Biology, 2401 11th Avenue, Kearney, Nebraska 68849, USA 2Nebraska Game and Parks Commission, Kearney Field Office, 1617 1st Avenue, Kearney, Nebraska 68847, USA aCurrent address: Natural Resource Management, South Dakota State University, Box 2140B, SNP 138, Brookings, South Dakota 57007-1696, USA bCurrent address: Entomology and Plant Pathology, Oklahoma State University, 127 Noble Research Center, Stillwater, Oklahoma 74078-3033, USA *Corresponding author E-mail: [email protected] Received: 7 July 2014 / Accepted: 23 March 2015 / Published online: 7 April 2015 Handling editor: Kit Magellan Abstract The establishment of nonnative species and subsequent replacement of native species is among the greatest threats to freshwater biodiversity worldwide. However, little is known of the effects that invasive species have on individual species and specific mechanisms by which species displacement occurs. The expansion of western mosquitofish Gambusia affinis beyond its native range has commonly been thought to cause shifts in species assemblages throughout the United States. Although plains topminnow Fundulus sciadicus populations have declined as the range of western mosquitofish in Nebraska has expanded, long-term co-existence of mosquitofish with the closely related northern plains killifish Fundulus kansae has been observed within the same systems.
    [Show full text]