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Full-Text Articles in Life Sciences
Assessing Freshwater Mussels (Bivalvia: Unionidae) In South Dakota And Identifying Drivers Of Assemblage Variation, Kaylee L. Faltys
Assessing Freshwater Mussels (Bivalvia: Unionidae) In South Dakota And Identifying Drivers Of Assemblage Variation, Kaylee L. Faltys
Electronic Theses and Dissertations
Native freshwater mussels (Family: Unionidae) are among the most threatened groups of freshwater fauna on Earth. Approximately 35 species have gone extinct since the 1900s and 72% of remaining species are considered endangered, threatened, or species of special concern. Unionid research can begin by establishing species presence and distributions via surveys. Objectives for this study were to 1) implement the first comprehensive unionid survey for South Dakota to assess distribution, composition, and decline, 2) estimate assemblage density and determine local versus broad scale habitat drivers of assemblage variation, and 3) determine areas of unionid conservation priority in South Dakota. Mussels …
Evaluation Of Bobcat (Lynx Rufus) Survival, Harvest, And Population Size In The West-Central Region Of South Dakota, Brandon M. Tycz
Evaluation Of Bobcat (Lynx Rufus) Survival, Harvest, And Population Size In The West-Central Region Of South Dakota, Brandon M. Tycz
Electronic Theses and Dissertations
Recent concern regarding bobcat (Lynx rufus) population status has prompted researchers and managers to gather additional information about bobcats in South Dakota. From 2012–2015, we assessed population dynamics of bobcats occupying the west-central region of South Dakota. Our objectives were to: 1) estimate annual survival rates; 2) determine cause-specific mortality; 3) estimate a population size for the western prairie region of South Dakota; 4) estimate home range size of individually marked bobcats; 5) evaluate reproductive status; and 6) build a population model. We captured and radio-collared 51 (24 male, 27 female) bobcats with VHF collars. Annual survival was 65.1% (95% …