Download or read book Modeling Habitat Suitability and Population Demographics of the Eastern Massasauga Rattlesnake in Managed Lands in Southwestern Michigan written by Robyn Leah Bailey and published by . This book was released on 2010 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status of the Eastern Massasauga Rattlesnake at Indiana Dunes National Lakeshore written by National Park Service and published by CreateSpace. This book was released on 2013-08-28 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The eastern massasauga rattlesnake (Sistrurus catenatus catenatus) is a candidate for federal listing as a threatened or endangered Distinct Population Segment (DPS) (U.S. FWS 2003). Although the massasauga rattlesnake is thought to be in decline throughout much of its range, only the eastern subspecies (Sistrurus c. catenatus) is currently under consideration for listing. The eastern subspecies has been described as historically ranging from central New York and southern Ontario, southwest to Iowa and Missouri (Johnson 1995; Minton 2001). This eastern subspecies encompasses all S. catenatus residing north and east of the Missouri River.
Download or read book Using Human Dimensions Insights to Improve Conservation Efforts for the Eastern Massasauga Rattlesnake Sistrurus Catenatus Catenatus in Michigan and the Timber Rattlesnake Crotalus Horridus Horridus in Minnesota written by Rebecca Ann Christoffel and published by . This book was released on 2007 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat Use and Movement Patterns of the Eastern Massasauga Rattlesnake in Wisconsin written by Christopher H. Danou and published by . This book was released on 1997 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving the Image of the Eastern Massasauga Rattlesnake in the Midwest written by D. J. Case & Associates and published by . This book was released on 2002 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Eastern Massasauga Rattlesnake written by Ontario. Ministry of Natural Resources and published by . This book was released on 1983 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Habitat Ecology and Population Viability of the Eastern Massasauga Rattlesnake in Southwestern Lower Michigan written by Kristin Marie Bissell and published by . This book was released on 2006 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rattles Fangs written by Lisa W. Kroeber and published by . This book was released on 2003 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eastern Massasauga Rattlesnake Population and Habitat Ecology in Southern Michigan written by Stephanie Anne Shaffer and published by . This book was released on 2018 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Symposium and Workshop on the Conservation of the Eastern Massasauga Rattlesnake Sistrurus Catenatus Catenatus written by Bob Johnson and published by West Hill, Ont. : Metropolitan Toronto Zoo. This book was released on 1993 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Eastern Massasauga Rattlesnake Stewardship Guide written by Eastern Massasauga Rattlesnake Recovery Team and published by . This book was released on 2000 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status Report on the Eastern Massasauga Rattlesnake Sistrurus C Catenatus in Canada written by Wayne F. Weller and published by . This book was released on 1991 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Eastern Massasauga Rattlesnake written by Andrew S. Hoffman and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Eastern Massasauga Rattlesnake (Sistrurus catenatus; EMR) has declined through most of its range and is endangered in Ohio and federally threatened. Areas that EMR may inhabit must be surveyed prior to approving development projects. Therefore, comprehensive, fast, and affordable survey techniques for the EMR are of interest to government and non-government groups. This is particularly evident in Ohio where all known EMR populations are near maintained or expanding road networks. Traditional EMR surveying in Ohio uses visual encounter surveys and artificial cover object arrays. The purpose of this research is to test and refine a new survey technique, the Adapted-Hunt Drift Fence Technique (AHDriFT) and compare it to current EMR survey methods using a cost-benefit analysis. We deployed AHDriFT arrays at 66 fields across seven Ohio Counties over the course of four years, yielding 351 EMR detections at 57 fields. AHDriFT was the most effective and consistent method for detecting massasaugas in Ohio across a broad range of environmental and temporal variables. In this report, we generated relatively precise estimates for deploying these arrays to achieve high confidence in survey results.
Download or read book Status of the Eastern Massasauga Rattlesnake at Indiana Dunes National Lakeshore written by Gary Glowacki and published by . This book was released on 2005 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape Genetics Demographic Models and Conservation of the Eastern Massasauga Rattlesnake Sistrurus Catenatus written by Scott Anthony Martin and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Successful conservation actions require a detailed understanding of how individuals interact with their environment. For many threatened and endangered species, anthropogenic changes to their landscape have created barriers separating formerly connected populations. This isolation can have profound impacts on the long-term viability of these populations and ultimately the conservation status of the species. For example, as populations become more isolated, they may enter the “extinction vortex” where small populations experience high levels of inbreeding and genetic drift depressing demographic rates, driving the population into a positive feedback loop that can lead to a decline in numbers and eventual extinction. However, if barriers to movement are not complete, even infrequent dispersal between populations can counter potential vortex effects by bolstering local population sizes and introducing new genetic material. Determining if populations are connected via dispersal or if they are isolated is a difficult question with no single best approach. For the Federally threatened Eastern Massasauga Rattlesnakes, Sistrurus catenatus, their reclusive, sedentary lifestyle make many field-based methods for generating this information difficult and unreliable without unrealistic investments of time and resources. In my thesis, I used information from DNA single nucleotide polymorphisms (SNPs) from neutral genetic markers to address the following three fundamental questions regarding how S. catenatus move through their landscape in Ohio and how this information can be used to evaluate proposed activities for their conservation: (1) Do snakes in scattered habitat patches across Northeastern Ohio belong to a single connected population, a metapopulation with infrequent dispersal, or isolated populations? I used 1000s of DNA SNPs to reconstruct a pedigree across 86 individuals and showed that no individuals have moved between habitat patches separated by more than a few meters in the last three generations. This is despite known movements of over 2 km by individual snakes in other populations of this species found in more continuous habitat. From these results, I concluded that S. catenatus in NE Ohio is split into five genetically distinct populations in an area smaller than 15 km2 with no recent connectivity. (2) What landscape features drive the observed lack of connectivity? I next used the same SNP dataset with a second SNP dataset collected from 103 S. catenatus from a large population in Central Ohio to model landcover features that potentially impact resistance to movement between local habitat patches. I found that an inherent landscape feature, elevation, and contemporary landcover, specifically roads, were the main barriers to connectivity. I then used the resistance maps and pedigrees for S. catenatus populations in NE Ohio and Central Ohio to estimate the resistance values between all pairs of closely related individuals and used those to estimate dispersal kernels around each population. The kernels results reinforced our previous finding of no contemporary connectivity between S. catenatus populations in this region. (3) How would proposed management actions impact the demographic viability of S. catenatus in NE Ohio? The habitat occupied by populations of S. catenatus in NE Ohio has been targets of active management to prevent vegetation succession, and there has been increased interest in additional habitat management. Suggested management actions for individual S. catenatus populations have focused on increasing habitat sizes, increasing the frequency of woody vegetation removal, creating habitat between populations, and translocating snakes between populations. I built forward-in-time simulations of population trends under current management and five alternative management activities using resistance maps that I previously developed in Population Viability Analysis (PVA) models. I found that connectivity improvements via the formation of new habitats (and ideally new populations) between the current populations or a hybrid connectivity/translocation strategy offered the greatest improvement towards both overall population size and the number of occupied patches. These connectivity models were superior to the base scenario representing no changes to management. Overall, my research has generated novel tools and approaches based on landscape genetics and demographic modeling for conservation of endangered and threatened species in fragmented landscapes. When applied to S. catenatus population is in NE Ohio, these approaches have provided new and significant insights on contemporary population structure in S. catenatus in NE Ohio, how the landscape created the observed patterns, and how this information can be used to generate management recommendations to promote the long-term persistence of this threatened reptile.
Download or read book Endangered and Threatened Species Eastern Massasauga Rattlesnake Status Us Fish and Wildlife Service Regulation Fws 2018 Edition written by The Law The Law Library and published by Createspace Independent Publishing Platform. This book was released on 2018-10-24 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Endangered and Threatened Species - Eastern Massasauga Rattlesnake - Status (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition) The Law Library presents the complete text of the Endangered and Threatened Species - Eastern Massasauga Rattlesnake - Status (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition). Updated as of May 29, 2018 We, the U.S. Fish and Wildlife Service (Service), determine threatened species status under the Endangered Species Act of 1973 (Act), as amended, for the eastern massasauga rattlesnake (Sistrurus catenatus), a rattlesnake species found in 10 States and 1 Canadian Province. The rule adds this species to the Federal List of Endangered and Threatened Wildlife. We have also determined that the designation of critical habitat for the eastern massasauga rattlesnake is not prudent due to an increased risk of collection and persecution. This book contains: - The complete text of the Endangered and Threatened Species - Eastern Massasauga Rattlesnake - Status (US Fish and Wildlife Service Regulation) (FWS) (2018 Edition) - A table of contents with the page number of each section
Download or read book Rattlesnakes written by Laurence M. Klauber and published by Univ of California Press. This book was released on 1982 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Their habits, life histories, and influence on mankind.
