Download or read book Demography Population Viability Analysis and Spatial Ecology of Emydoidea Blandingii Blanding s Turtle in Lake County Illinois written by Christopher David Benda and published by . This book was released on 2007 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetics and Demography of Wisconsin Turtles written by and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Turtles (order Testudines) are an ancient but highly threatened vertebrate group. Successful preservation of biodiversity in this group (as in others) requires identification of current threats, species-level traits that modulate vulnerability to these threats, and both general and species-specific strategies for mitigating threats. In this dissertation, I address these research needs for several Wisconsin turtles, focusing on the UCN-Endangered Blanding's turtle (Emydoidea blandingii). The approaches used here encompass multiple spatial scales, combine genetic and demographic methods of characterizing population viability and spatial ecology, and utilize comparisons among species, specifically by comparing endangered Blanding's turtles with more common co-occurring painted turtles (Chrysemys picta) and snapping turtles (Chelydra serpentina). Each chapter of this dissertation is written and formatted as a manuscript for publication in a scholarly journal. Chapter 1 (published in Diversity and Distributions) investigates the population-level demographic and genetic responses of three turtle species with differing habitat preferences and life histories to roads and climate. Chapter 2 (prepared for submission to Molecular Ecology) describes the effects of past and present landscape features on population genetic structure in this same suite of turtle species. Chapter 3 (submitted to Methods in Ecology and Evolution) develops a novel method for estimating dispersal rates from genetic kinship data and uses this method to investigate the spatial ecology of nesting female Blanding's turtles. Finally, Chapter 4 (submitted to Biological Conservation) deals with the demographic response of a population of Blanding's turtles to habitat restoration. Overall, the work collected here demonstrates how differences in species' life history traits and habitat preferences can affect their vulnerability to environmental change and suggests how strategies for managing populations and genetic diversity can be tailored to these traits.

Download or read book Blanding s Turtle Emydoidea Blandingii in Saratoga County New York written by Andrea M. Chaloux and published by . This book was released on 2011 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population viability modeling of Blanding s turtles Emydoidea blandingii in Dutchess County NY written by Evan Goldman and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Spatial Ecology of Blanding s Turtles Emydoidea Blandingii written by Catherine Stéphanie Millar and published by . This book was released on 2010 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Using Spatial Ecology Data to Inform Development and Mitigation of a Trap Rock Quarry in Blanding s Turtle Emydoidea Blandingii Habitat written by Gabriella Zagorski and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mining practices can negatively impact turtles through degradation of wetlands and surrounding upland habitat, alteration of movement corridors, accidental mortality, and increased risk of nest and turtle predation. These impacts, in turn, can cause changes in patterns of energy allocation, skewed sex ratios and changed demography, which may ultimately lead to population declines. The aim of my study was to describe the demography of, and identify critical habitat for, a population of globally-endangered Blanding's turtles (Emydoidea blandingii) inhabiting an area of interest for development of a trap rock quarry. In addition to generating important knowledge about population ecology and habitat use, my study can serve as the "before" study in a BeforeAfter Control-Impact (BACI) study quantifying impacts of quarrying on turtles. Using radiotelemetry, GPS dataloggers, and capture-mark-recapture surveys, data were collected at an impact (quarry) site and a control site, and thermal data were collected during overwintering using iButtons. I captured 56 turtles at the impact site and 13 at the control site, and estimated population sizes were 79.6 +/- 17.9 (1.84 turtles/ha) and 16.0 +/- 21.2 (0.32 turtles/ha), respectively. Body size was larger at the control site, but body condition was similar at both sites. Daily distances moved and home range sizes did not differ between sites, and were generally smaller than conspecific values reported in the literature. I identified nesting (15 impact, 2 control) and overwintering (12 impact, 7 control) sites, both considered critical habitats. Overwintering water depth ranged from 30-150 cm (before ice-on) and turtles overwintered at temperatures reported previously in the literature (1.5 to 0.5 oC). My data can be used to quantitatively inform quarry development and mitigation strategies, essential components to balancing the needs of species at risk and humans.

Download or read book Blanding s Turtle Emydoidea Blandingii at Camp Riley written by Todd D. Sajwaj and published by . This book was released on 1998 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Habitat Use and Spatial Ecology of Blanding s Turtle Emydoidea Blandingii on Squaw Creek National Wildlife Refuge Mound City Missouri written by Lisa Marie Lehnhoff and published by . This book was released on 2004 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecology of the Blanding s Turtle Emydoidea Blandingii at a Northeastern Illinois Prairie Wetland Community written by Whitney Joanna Banning and published by . This book was released on 2006 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Blanding s Turtle Emydoidea Blandingii in the Brainerd Baxter Region written by Stephen A. Piepgras and published by . This book was released on 1998 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Homogeneity Among Blanding s Turtle Emydoidea Blandingii Populations Across the Chicago Area written by George Matthew Klut and published by . This book was released on 2011 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Habitat Use and Spatial Ecology of Blanding s Turtles emydoidea Blandingii and Spotted Turtles clemmys Guttata in Northeast Indiana written by Christine E. Barlow and published by . This book was released on 1999 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Assessment of Viable Habitat for Blanding s Turtle Emydodidea Blandingii in the State of Ohio Using GIS and Remote Sensing written by Bradley M. Poynter and published by . This book was released on 2011 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Blanding's Turtle (Emydoidea blandingii) has received threatened status in the State of Ohio in 2010. The goal of this study is to provide information that can be used in conservation management to locate suitable habitat for conservation of the species as well as potential repatriation or trans location sites. Wetland Inventory and Land Use/Land Cover maps were combined with aerial photography to evaluate regions located in Ohio's Lake Erie Drainage Basin that would meet the essential requirements of the turtles life history by quantitative methods used in Geographic Information Systems (GIS) and Remote Sensing programs. This study identified suitable wetlands and vernal pools, lakes and ponds, and other areas with minimum canopy for nesting and movement. Throughout the region, the highest concentration of available habitat is found in Erie, Lucas, and Ottawa counties of the Blanding's turtle's historical range. This approach to creating Habitat Niche Models was validated by close correlation between the counties identified as having remaining appropriate habitat and the counties from the historical populations in which Blanding's turtles still remain. The potential exists to restore these areas through various means: restoring wetlands, protecting areas near agriculture that are more suitable for nesting, constructing small tunnels under roads and fences, and installing road warning signs to allow for safer migration. With protection and restoration of the habitat, the species may still have a chance to recover and become a stable population without the need for intense management.

Download or read book The Spatial Ecology of Blanding s Turtles Emydoidea Blandingii written by Catherine Stéphanie Millar and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Genetic Structure of Blanding s Turtle emydoidea Blandingii in New York written by Eric M. McCluskey and published by . This book was released on 2008 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Demographic Report of a New Subpopulation and the Environmental Effects on Nesting Ecology of Blanding s Turtles Emydoidea Blandingii Found in Nova Scotia written by Carter Feltham and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Chapter 2. Abstract: In 2016 a group of Blanding's Turtles were discovered in a small area in southwestern Nova Scotia near the community of Bangs Falls. The surrounding area was used primarily by the near-by lumber mill for commercial tree harvesting. Blanding's Turtles inhabit various wetland types throughout the year to meet their needs. Thus, the importance of understanding how much of the area was used by the turtles to facilitate protection of the land necessary for their survival. A capture-mark-recapture program has been conducted over four years in the area and morphological data for each individual was recorded. The time and heterogeneity model in the program MARK was used to estimate the number of turtles in the new area as well as to update estimates from the known subpopulations. The Bangs Falls turtles were observed using similar habitat as Blanding's Turtles throughout their range. A total of 500 traps were set and 571 survey hours were done between May and August in 2018 and 2019. Resulting in 154 Blanding's Turtles observations of 66 individuals. They are comparable in weight and length to the Blanding's Turtles found in Pleasant River and McGowan Lake. The number of Blanding's Turtles in the Bangs Falls subpopulationwas estimated to be 77-116 individuals. The total population estimate for Blanding's Turtles in Nova Scotia increased from ~350 individuals to 557 (95% CI: 521-608) individuals. Chapter 3. Abstract: Hatching success in oviparous reptiles varies with environmental factors. The cool climate in Nova Scotia was likely a contributor to low hatching success in Blanding's Turtles compared to other parts of their range (Standing et al.,1999). Nesting data for Blanding's Turtles and environmental factors were recorded. Air temperature was used as a proxy to estimate nest temperatures. Temperature was the best criterion for predicting hatching success and was significantly better than models using variations of degree day. Although the nesting period for Blanding's Turtles in Nova Scotia was similar to those throughout the species geographic range, the mean incubation period was up to 16 days longer and the average emergence rate was low (~42%). The model showed significant increase of hatching success with mean temperature and the data of hatch success over time showed an increasing trend. Rising temperatures will likely lead to increased hatching success of Blanding's Turtles in Nova Scotia for a short period of time, until the temperature rises above that in which they can develop successfully. Additionally, rising temperature will skew sex ratios effectively putting the population at risk of extinction due to limited fertilization opportunities and decreased genetic diversity.

Download or read book A Genetic Comparison of Several Populations of Blanding s Turtle Emydoidea Blandingii written by Stephen W. Mockford and published by . This book was released on 1996 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: