Download or read book Existing Geospatial Knowledge of Gopher Tortoise Population and Abundance written by William D. Meyer and published by . This book was released on 2007 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geospatial Analysis for Management of an Urban Population of the Gopher Tortoise Gopherus Polyphemus in North Florida written by Laura Christina Becht and published by . This book was released on 2001 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determining Habitat Preferences of the Juvenile Gopher Tortoise Gopherus Polyphemus Using Spatially Modeled Vegetation on a Central Florida Sandhill written by Kristan Marie Nicole Raymond and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Public and private conservation areas are becoming increasingly important to the continued survival of the gopher tortoise, making it imperative that land managers know the specific habitat requirements of juvenile gopher tortoises because recruitment is key to species persistence. Little is currently known about environmental factors that underlie hatchling and juvenile survival and recruitment in gopher tortoise populations. Because of the short duration and distance of juvenile tortoise foraging journeys, food availability, thermoregulatory conditions, and refugia near the burrow may considerably affect juvenile growth and survival. This two-year study of a central Florida sandhill examines the spatial relationship between juvenile gopher tortoise burrows and the surrounding habitat. Gopher tortoise burrow positions, activity, and width were recorded in four complete surveys of the 4-hectare study area. Coincident with three of the burrow surveys, vegetation and structural habitat characteristics, such as forb and canopy cover, were surveyed in a uniform grid design. Vegetation cover was reclassified using habitat suitability functions (HSFs) derived from qualitative literature values and combined into habitat suitability indices (HSIs) to model the relationships between habitat variables and the likelihood of juvenile gopher tortoise presence. Chi-squared tests and spatial point pattern analysis were used to validate and identify well-forming models. In general, the best performing HSI models for the juvenile gopher tortoise were those that incorporated all three gopher tortoise life requisites in a compensatory relationship (geometric mean): thermoregulation (total high canopy, bare ground, or litter), predation (oak mid-canopy), and food (forb or wiregrass). The models could be improved by using the observed relative abundance of juvenile burrows in each vegetation cover class to modify the HSFs. These methods will help identify habitat characteristics associated with active juvenile gopher tortoise burrows that can be used by public and private land managers to improve existing tortoise habitat and to identify high-quality habitat for future preserves.

Download or read book Gus the Gopher Tortoise A Tortoise Tells His Story written by Thomas Kibalo and published by Independently Published. This book was released on 2019-03-20 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a children's book about Gus a Gopher tortoise. In this book Gus shares his life and story.The book contains custom art illustrations to help Gus in his discussions. Gus lives in a burrow located in sand dunes on the coast of Florida. He describes in first person how Gopher tortoises live and eat, and how they provide shelter to other creatures on the dunes.Gopher tortoises are recognized as a keystone species, in that their presence and activities are essential to the dunes ecology, and the well being of different animals in that habitat. Gus will introduced us to some of these animals. Gopher tortoises are some of the oldest living land species here in Florida and are now threatened. The threat comes mainly from humans that are competing with Gopher tortoises for their habitat.Gus lets us know how we can help.The book also describes conservation actions underway to help preserve the Gopher Tortoise population. Proceeds from sales of this book will go to the Friends of the Marine Science Center to support that center in their tortoise rescue efforts

Download or read book The Relationship Between Burrow Abundance and Area as a Predictor of Gopher Tortoise Population Size written by and published by . This book was released on 2010 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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.

Download or read book Analysis of Gopher Tortoise Population Estimation Techniques written by Raymond R. Carthy and published by . This book was released on 2005 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Field Test of Gopher Tortoise Gopherus Polyphemus Population Estimation Techniques written by William D. Meyer and published by . This book was released on 2008 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessment of Resource Selection Using Remote Sensing and Geographic Information Systems gis for Two Vertebrates in Disparate Habitats written by Cherie A. Keller and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerial survey data (December-March, 1991-1998) including survey tracklines and right whale locations were entered into a Geographic Information Systems (GIS) for comparing whale use of SST to availability based on search effort. Using Monte Carlo techniques, mean and standard deviation for SSTs and latitudes of whale-sightings were compared to sampling distributions derived from available SSTs and latitudes. From these data, it was concluded that the North Atlantic right whale uses SSTs and latitudes non-randomly. Broad-scale habitat selection for gopher tortoises was evaluated from the 2003 Land Cover/Land Use map (Florida Fish and Wildlife Conservation Commission). Based on land cover and ancillary data, potential gopher tortoise habitat was developed for northeast Florida.

Download or read book Gopher Tortoise Habitat Use and Spatial Distribution in a Southeastern Florida Population written by E. H. King and published by . This book was released on 2005 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Gopher Tortoise written by Gopher Tortoise Council. Meeting and published by . This book was released on 1989 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Desert Tortoise Mojave Population Recovery Plan written by and published by . This book was released on 1994 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Sonoran Desert Tortoise written by Thomas R. Van Devender and published by University of Arizona Press. This book was released on 2019-04-15 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most recognizable animals of the Southwest, the desert tortoise (Gopherus agassizii) makes its home in both the Sonoran and Mohave Deserts, as well as in tropical areas to the south in Mexico. Called by Tohono O'odham people "komik'c-ed," or "shell with living thing inside," it is one of the few desert creatures kept as a domestic pet—as well as one of the most studied reptiles in the world. Most of our knowledge of desert tortoises comes from studies of Mohave Desert populations in California and Nevada. However, the ecology, physiology, and behavior of these northern populations are quite different from those of their southern, Sonoran Desert, and tropical cousins, which have been studied much less. Differences in climate and habitat have shaped the evolution of three races of desert tortoises as they have adapted to changes in heat, rainfall, and sources of food and shelter as the deserts developed in the last ten million years. This book presents the first comprehensive summary of the natural history, biology, and conservation of the Sonoran and Sinaloan desert tortoises, reviewing the current state of knowledge of these creatures with appropriate comparisons to Mohave tortoises. It condenses a vast amount of information on population ecology, activity, and behavior based on decades of studying tortoise populations in Arizona and Sonora, Mexico, and also includes important material on the care and protection of tortoises. Thirty-two contributors address such topics as tortoise fossil records, DNA analysis, and the mystery of secretive hatchlings and juveniles. Tortoise health is discussed in chapters on the care of captives, and original data are presented on the diets of wild and captive tortoises, the nutrient content of plant foods, and blood parameters of healthy tortoises. Coverage of conservation issues includes husbandry methods for captive tortoises, an overview of protective measures, and an evaluation of threats to tortoises from introduced grass and wildfires. A final chapter on cultural knowledge presents stories and songs from indigenous peoples and explores their understanding of tortoises. As the only comprehensive book on the desert tortoise, this volume gathers a vast amount of information for scientists, veterinarians, and resource managers while also remaining useful to general readers who keep desert tortoises as backyard pets. It will stand as an enduring reference on this endearing creature for years to come.

Download or read book Biology and Conservation of Florida Turtles written by Peter A. Meylan and published by . This book was released on 2006 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book North American Tortoises written by R. Bruce Bury and published by . This book was released on 1981 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecological Regions of North America written by and published by . This book was released on 1997 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume represents a first attempt at holistically classifying and mapping ecological regions across all three countries of the North American continent. A common analytical methodology is used to examine North American ecology at multiple scales, from large continental ecosystems to subdivisions of these that correlate more detailed physical and biological settings with human activities on two levels of successively smaller units. The volume begins with an overview of North America from an ecological perspective, concepts of ecological regionalization. This is followed by descriptions of the 15 broad ecological regions, including information on physical and biological setting and human activities. The final section presents case studies in applications of the ecological characterization methodology to environmental issues. The appendix includes a list of common and scientific names of selected species characteristic of the ecological regions.

Download or read book Amphibians and Reptiles of Georgia written by John B. Jensen and published by University of Georgia Press. This book was released on 2008 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Featuring more than 475 full-color photographs and 182 maps, this comprehensive guide to the state's diverse herpetofauna makes accessible a wealth of information about 170 species of frogs, salamanders, crocodilians, lizards, snakes, and turtles, including species attributes, behavior, life cycles, habitat, and more.