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Demography Of Two Insular Populations Of The Gopher Tortoise Gopherus Polyphemus Daudin In A Reservoir In Southwestern Georgia
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Book Synopsis Demography of Two Insular Populations of the Gopher Tortoise, Gopherus Polyphemus (Daudin), in a Reservoir in Southwestern Georgia by : Edward Earl Wester
Download or read book Demography of Two Insular Populations of the Gopher Tortoise, Gopherus Polyphemus (Daudin), in a Reservoir in Southwestern Georgia written by Edward Earl Wester and published by . This book was released on 1986 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :IUCN/SSC Tortoise and Freshwater Turtle Specialist Group Publisher :IUCN ISBN 13 :2880329868 Total Pages :210 pages Book Rating :4.8/5 (83 download)
Book Synopsis The Conservation Biology of Tortoises by : IUCN/SSC Tortoise and Freshwater Turtle Specialist Group
Download or read book The Conservation Biology of Tortoises written by IUCN/SSC Tortoise and Freshwater Turtle Specialist Group and published by IUCN. This book was released on 1989 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Review written by and published by . This book was released on 1992 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Population Biology of the Gopher Tortoise, Gopherus Polyphemus, in Southeast Georgia by : Douglas N. Jones
Download or read book Population Biology of the Gopher Tortoise, Gopherus Polyphemus, in Southeast Georgia written by Douglas N. Jones and published by . This book was released on 1996 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Population Biology of the Gopher Tortoise, Gopherus Polyphemus, in Southeast Georgia by : Douglas N. Jones
Download or read book Population Biology of the Gopher Tortoise, Gopherus Polyphemus, in Southeast Georgia written by Douglas N. Jones and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long-term Population Ecology and Movement Patterns of Gopher Tortoises (Gopherus Polyphemus) in Southwest Georgia by : Alexander David Wright
Download or read book Long-term Population Ecology and Movement Patterns of Gopher Tortoises (Gopherus Polyphemus) in Southwest Georgia written by Alexander David Wright and published by . This book was released on 2016 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Habitat loss, fragmentation, and degradation have led to an estimated 80% range-wide decline of gopher tortoise (Gopherus polyphemus) populations across the Southeastern Coastal Plain. Recently, the gopher tortoise was identified as a candidate for listing under the Endangered Species Act in the eastern part of its range. To support an adaptive landscape planning and decision framework for gopher tortoise conservation, I examined the population dynamics and movement patterns of four gopher tortoise populations on a large private reserve in southwestern Georgia, where tortoises were previously marked/recaptured from 1995-2000. It is critical to understand how tortoise populations vary in space and time at large spatial and temporal scales to protect a long-lived species, such as the gopher tortoise, into perpetuity. With further understanding of the long-term population ecology and movement patterns, we can better evaluate the roles of emigration and survival within populations to inform reserve design and decision analysis for the species' conservation.
Book Synopsis Gopher Tortoise, Gopherus Polyphemus, Recovery Plan by : Wendell A. Neal
Download or read book Gopher Tortoise, Gopherus Polyphemus, Recovery Plan written by Wendell A. Neal and published by . This book was released on 1990 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Distribution and Population Biology of the Gopher Tortoise, Gopherus Polyphemus, in South Carolina by : John Stephen Wright
Download or read book Distribution and Population Biology of the Gopher Tortoise, Gopherus Polyphemus, in South Carolina written by John Stephen Wright and published by . This book was released on 1982 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Species Profile: Gopher Tortoise (Gopherus Polyphemus) on Military Installations in the Southeastern United States by :
Download or read book Species Profile: Gopher Tortoise (Gopherus Polyphemus) on Military Installations in the Southeastern United States written by and published by . This book was released on 1997 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: The gopher tortoise (Gopherus polyphemus) is the only tortoise that occurs east of the Mississippi River. The U.S. Fish and Wildlife Service has separated the species into two main populations. The western population (southwest Mississippi and southeast Louisiana) is Federally listed as threatened; the eastern population, which occurs in southern Alabama and Georgia, extreme southwestern South Carolina, and most of Florida, is a former candidate for listing as threatened. Gopher tortoises occupy a wide range of open, upland habitats with a well-drained, deep sandy substrate, primarily longleaf pine-xerophytic oak woodlands (sandhills). They have been documented on several military installations in the Southeast. This report is one of a series of 'Species Profiles' being developed for threatened, endangered, and sensitive species inhabiting southeastern United States plant communities. The work is being conducted as part of the Department of Defense (DoD) Strategic Environmental Research and Development Program (SERDP). The report is designed to supplement information provided in plant community management reports for major United States plant communities found on military installations. Information provided on the gopher tortoise includes status, life history and ecology, habitat requirements, impacts and cause of decline, management and protection, and inventory and monitoring.
Book Synopsis The Demography of Gopherus Polyphemus (Daudin) in Relation to Size of Available Habitat by : Earl D. McCoy
Download or read book The Demography of Gopherus Polyphemus (Daudin) in Relation to Size of Available Habitat written by Earl D. McCoy and published by . This book was released on 1995 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Habitat Quality on Reproduction in Two Georgia Populations of Gopherus Polyphemus by : Jacqueline Entz
Download or read book Effects of Habitat Quality on Reproduction in Two Georgia Populations of Gopherus Polyphemus written by Jacqueline Entz and published by . This book was released on 2009 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's Abstract: The purpose of this study was to examine differences in maternal investment by examining variation in the habitat structure and reproductive parameters for two populations of Gopherus polyphemus in Southeast GA. Both habitat structure and reproductive parameters for these populations are known from a previous study, thus this study expands upon the previous one and addresses four main questions. (1) Has habitat quality changed in the past ten years within and between population sites? (2) Could a change of habitat have affected female morphology or female reproductive parameters within or between populations? (3) Is female body size shaping egg size and/or clutch size for either population? (4) Are females providing equal resources to hatchlings and is hatchling growth potentially being modified by habitat quality affecting adult size and age to sexual maturity? Tortoises were captured by bucket trapping and hand trapping. Radio-graphs were used to obtain information about female body size, clutch size and egg size. In order to assess the effect of habitat quality on tortoises, hatchlings from both locations were reared under controlled, laboratory conditions. The hatchlings were measured bi-weekly to determine differences in growth. Results indicate that habitat quality for these two populations has not changed in the past fourteen years, indicating that this habitat is slow to change. In response to limited change in habitat quality, female body size and reproductive parameters have not changed. Female tortoises from one population produced significantly larger clutch sizes than the other, even when female body size was accounted for; this trend has been observed in many other Testudine species. When hatchling sizes were compared to other populations of G. polyphemus, the hatchling SCL seems consistent while the hatchling mass is variable. Thus, we believe that in Gopherus polyphemus female body size plays a small role in clutch size determination and no role on egg size determination. It is believed that G. polyphemus is minimizing hatchling size (SCL) in order to maximize clutch size and those females with access to more resources can supply more yolk to developing embryos. When hatchlings from both populations were provided with equal resources they grew at similar rates, indicating that the poorer quality habitat at GLS leads to a slower growth rate. Therefore, habitat quality is playing a major role in tortoise growth rates and reproduction. Based on these results, conservation efforts are needed to maintain healthy tortoise populations need to address habitat quality in development of management plans.
Book Synopsis Lack of Plasticity in Gopher Tortoise (Gopherus Polyphemus) Nesting Behavior and Fecundity in a Translocated Population by : Jennifer N. DeSha
Download or read book Lack of Plasticity in Gopher Tortoise (Gopherus Polyphemus) Nesting Behavior and Fecundity in a Translocated Population written by Jennifer N. DeSha and published by . This book was released on 2021 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt: Author's abstract: Gopher tortoises (Gopherus polyphemus) are a threatened, keystone species that play important roles in upland habitats throughout the southeastern United States. Climate change could have diverse and strong effects on the fecundity and population demographics of gopher tortoises, as they are long-lived reptiles that rely on environmental temperatures for thermoregulation and sex determination. I used a population of translocated gopher tortoises at Nokuse Plantation, located in the panhandle of Florida, as a common garden experiment to assess whether plasticity of several nesting behaviors (i.e., nest temperature, depth, and orientation) and components of fecundity (i.e., clutch size, egg size, hatching success) might compensate for changes in environmental conditions. I compared nest characteristics among translocated females (from across the state of Florida) and examined how multiple measures of environmental distance, such as difference in warm season temperature between the translocation and origin sites, impacted aspects of fecundity. I found that tortoises did not exhibit plasticity and did not adjust their nesting behaviors in response to novel conditions. Tortoises that originated from climates that were more dissimilar from that of the translocation site placed their nests at different locations within the burrow apron, under differing amounts of canopy cover, and at different depths. Environmental distance of translocation also impacted hatching success, although there was no direct impact of nest site selection on hatching success, suggesting that differences in hatching success due to female origin are more a consequence of physiology (e.g., developmental processes) than female behavior. Although there was a high degree of variability in the direction of the effect of environmental distance – i.e., whether tortoises from more or less similar climates had greater hatching success – these results may indicate a strong degree of local adaptation that is still apparent even several years after translocation. These findings suggest that gopher tortoises may not be resilient to impending environmental changes, and behavior plasticity should not be expected. Effects on nest site selection, incubation temperatures, and hatching success suggest that translocation guidelines should consider climate differences when selecting relocation sites.
Book Synopsis A Demographic Study of an Isolated Population of the Gopher Tortoise, Gopherus Polyphemus ; and an Assessment of a Relocation Procedure for Tortoises by : Terry J. Doonan
Download or read book A Demographic Study of an Isolated Population of the Gopher Tortoise, Gopherus Polyphemus ; and an Assessment of a Relocation Procedure for Tortoises written by Terry J. Doonan and published by . This book was released on 1986 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Black Creek Seed Orchard Establishment on a Population of Gopher Tortoises (Gopherus Polyphemus) (Daudin) in Southeastern Mississippi by : Ty Whitson Bryan
Download or read book Effects of Black Creek Seed Orchard Establishment on a Population of Gopher Tortoises (Gopherus Polyphemus) (Daudin) in Southeastern Mississippi written by Ty Whitson Bryan and published by . This book was released on 1991 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Demography and Reproductive Biology of the Gopher Tortoise (Gopherus Polyphemus) in Mississippi by : Kelley Renee Smith
Download or read book The Demography and Reproductive Biology of the Gopher Tortoise (Gopherus Polyphemus) in Mississippi written by Kelley Renee Smith and published by . This book was released on 1996 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Conservation Genetics of Threatened Gopher Tortoises, Gopherus Polyphemus by : Angela Huang Getz
Download or read book Conservation Genetics of Threatened Gopher Tortoises, Gopherus Polyphemus written by Angela Huang Getz and published by . This book was released on 2013 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Demography and Reproductive Biology of the Gopher Tortoise (Gopherus Polyphemus) Population at White Oak Plantation, Nassau County, Florida by : Julia Rachel Smith
Download or read book Demography and Reproductive Biology of the Gopher Tortoise (Gopherus Polyphemus) Population at White Oak Plantation, Nassau County, Florida written by Julia Rachel Smith and published by . This book was released on 2012 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
