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 Snakes written by Stephen J. Mullin and published by Cornell University Press. This book was released on 2009 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the first book on snakes written with a focus on conservation, editors Stephen J. Mullin and Richard A. Seigel bring together leading herpetologists to review and synthesize the ecology, conservation, and management of snakes worldwide.
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 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 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 Microhabitat Parameters and Spatial Ecology of the Spotted Turtle Clemmys Guttata written by Thomas P. Wilson and published by . This book was released on 2002 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Home Range Movements and Habitat Use of Blanding s Turtle Emydoidea Blandingii written by Timothy J. Crockett and published by . This book was released on 2008 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Home Range Habitat Use and Conservation of Spotted Turtles Clemmys Guttata in Central Massachusetts written by Joan C. Milam and published by . This book was released on 1997 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of the Movement and Habitat Use of Spotted Turtles Clemmys Guttata During Regrowth of a Managed Area in Pennsylvania written by Miranda Leigh McCleaf and published by . This book was released on 2016 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial and Temporal Patterns of Habitat Use by East Pacific Green Turtles Chelonia Mydas in a Highly Urbanized Foraging Ground written by and published by . This book was released on 2012 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Green sea turtles, Chelonia mydas, utilize coastal areas as foraging grounds for the majority of their lives. Human development of coastlines is increasing, but the effects of the urbanization of foraging grounds on green turtles are poorly understood. I used both manual and automated acoustic telemetry to determine the home ranges, movement behavior, and temporal patterns of site visitation of green turtles during 2009-2011 in San Diego Bay, California, a highly urbanized temperate foraging area. The home ranges of all tracked turtles were restricted to the southern portion of San Diego Bay, where eelgrass (Zostera marina) is abundant and where human activity is the lowest within the bay. Core activity areas coincided with eelgrass distribution or occurred adjacent to the warm water-effluent outfall of a waterfront power plant. Automated monitoring of sites throughout south San Diego Bay confirmed this finding, showing that green turtles most frequently visited the outfall of the power plant and areas known to contain eelgrass. This method also elucidated that turtle presence at the power plant was strongest during the winter and at night, whereas visitation to eelgrass areas was strongest during the spring and in the daytime. Turtle visitation to a high boat traffic shipping terminal was rare but occurred almost exclusively during the daytime, the period during which human activities in the area are also the highest. Manual tracking of green turtles similarly demonstrated that individuals ranged across larger portions of south San Diego Bay during the day, during which they exhibited high swimming speeds but highly non-linear movement. Turtle activity at night was primarily restricted to the power plant's effluent outfall channel and adjacent jetty. Nighttime movement was characterized by long periods of inactivity sporadically interrupted by brief, linear movements to new resting locations. Collectively, the results of this study paint a robust picture of the spatial, diel, and seasonal patterns of habitat use by green turtles in San Diego Bay. All data support the hypothesis that south San Diego Bay serves as important turtle habitat within the bay. Further, a combination of manual and automated acoustic telemetry enables a more complete understanding of turtle spatial ecology that would not have been possible with exclusive use of one technique. Future monitoring and modeling is required to document the potential effects of changing environmental conditions, including power plant closure, on green turtles resident to San Diego Bay. This study helps to assess the data gap of how turtles use urbanized foraging areas and changing coastal ecosystems, a currently novel scenario that will likely become commonplace in the face of increasing coastal development worldwide.
Download or read book Diet Habitat Use and Reproduction Characteristics in an Ohio Population of Blanding s Turtle Emydoidea Blandingii in a Lake Erie Coastal Plains Marsh written by James C. Spetz and published by . This book was released on 2008 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 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 General Habitat Description for the Blanding s Turtle Emydoidea Blandingii written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Threatened Turtle Species in Ohio and Michigan written by Austin C. Hulbert and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conservation efforts are urgently needed to reduce global biodiversity loss and to keep natural ecosystems intact. Turtles (Order Testudines) are important components of their ecosystems but are one of the most threatened vertebrate groups in the world due to habitat destruction, overexploitation, climate change, invasive species, and disease. To effectively conserve turtles, we need a detailed understanding of their spatial and population ecology, knowledge which is lacking for many declining species. Advancing technological methods are allowing researchers to address these research needs. One technological advancement is the reduction in battery size, which now allows researchers to attach miniature radio transmitters to hatchling and juvenile turtles and track them in their natural habitat. The ability to radio-track the early life stages of turtles allows researchers to study their survival, movements, and habitat needs, which are severely understudied compared to the adult life stages. Battery size reduction also allows for smaller GPS devices which automatically record locations, and which substantially reduces the time and labor required to physically locate individual animals. With this size reduction, researchers have started deploying GPS devices on small turtles; however, this method is in its early stages and requires assessment of its accuracy. Here, I used miniature radio transmitters to study the survival and dispersal of the hatchling stage of two threatened turtle species, the spotted turtle (Clemmys guttata) and Eastern box turtle (Terrapene carolina carolina), in oak savanna habitat of the Upper Midwest. I found hatchlings survival rates of both species from nest emergence through overwintering. Box turtle hatchling survival increased with less nest shade cover, which is associated with warmer nests, shorter incubation durations, and earlier nest emergence dates. Therefore, it is important for managers to maintain a range of ground cover microhabitats in nesting areas so turtles can match nest incubation conditions with current local conditions, while also maximizing hatchling survival. Additionally, I deployed GPS devices on adult spotted and Eastern box turtles to assess the reliability and accuracy of automatically recorded locations on small turtles across a range of habitat types. I found mixed support for habitat affecting accuracy of locations, but the number of satellites received and HDOP had large effects on accuracy of locations recorded by GPS devices. After screening locations based on number of satellites and HDOP, location accuracy was greatly increased. GPS devices are unlikely to be accurate for small, semi-aquatic turtle species but show promise for small, terrestrial turtle species. However, proper testing of GPS devices and methods of filtering their location data are needed to demonstrate their effectiveness when deployed on small turtle species, because unfiltered data can cause bias in ecological calculations, such as home range sizes. Overall, through the use of advancing technologies to track turtles, my research provides rare ecological data on hatchlings of threatened turtle species in the Oak Openings region, while also quantifying the effectiveness of GPS devices on these species.
