Download or read book Distribution Patterns of Reptiles and Amphibians in Puerto Rico written by Minh Duc Le and published by . This book was released on 1999 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study examined the question of whether a big island can be divided into many smaller islands with the same pattern of area-species curve as that of the complete island. To address this question, this study used data on the number and distribution of amphibians and reptiles on Puerto Rico and landbridge islands of the Puerto Rican Bank, which were fragmented from the big island about 10,000 years ago. In Puerto Rico, the data show correlations between the number of species and area available at different elevation levels and between species and area after removing effects of elevation. These patterns are different from the patterns of correlation between area and the number of reptiles and amphibians on 29 islands on the Puerto Rican Bank. The area-species curves of the elevationally and areally subdivided "islands" on Puerto Rico tend to have steeper slopes than the curves of the Puerto Rican Bank islands. Analyses of area and the number of those species on fragmented habitat islands at different elevations also indicated correlation between them. However, patterns of correlation seem not to be the same at each altitude. The slope of the area-species curve seems to decrease with increasing elevation levels. Other patterns of species distribution of Puerto Rico's herpetofauna are: there are linear relationships between the number of species and elevation, the number of species and distance from the coast, and the number of species and the species range areas. Multiple regression analyses of three variables: area, precipitation, and elevation, suggested that variation of species distribution in Puerto Rico is partly caused by interactions among these variables. Elevation plays an especially important role in explaining reptile and amphibian distribution. The rainfall variable had the least effect on determining herpetofauna diversity. The study results suggest that area-species correlation is a consequence of habitat heterogeneity on the island.

Download or read book Patterns of Distribution of Amphibians written by William Edward Duellman and published by JHU Press. This book was released on 1999-07-28 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sweet, University of California, Santa Barbara; Michael J. Tyler, University of Adelaide, Australia; Zhao Er-Mi, Chengdu Institute of Biology, Peoples Republic of China

Download or read book An Analysis of Distribution Patterns of Amphibians and Reptiles in Texas written by Cuyler Hershey Leonard and published by . This book was released on 1969 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Caribbean Amphibians and Reptiles written by Brian I. Crother and published by Elsevier. This book was released on 1999-06-02 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amphibians and reptiles are the most numerous, diverse, and frequently encountered animals on the Caribbean islands. This book provides a variety of perspectives on this amazing group of organisms. Caribbean Amphibians and Reptiles, compiled by an international team of zoologists, takes a fresh and detailed look at the complex biological puzzle of the Caribbean. The first true overview of the islands, it includes a historical examination of the people who have studied the Caribbean amphibians and reptiles. The book reviews the ecology, evolutionary history, and biogeographic explanations for the origins and diversity of the region's fauna with island-by-island coverage. It puts the Caribbean in perspective by comparing the islands to Central America and its amphibian reptile diversity. Additionally, the book includes figures, tables, and color plates which bring to life some of the region's most spectacular creatures. Key Features* Presents the first complete review of amphibians and reptiles in the Caribbean* Includes color plates and island maps* Contributors are recognized authorities in the field

Download or read book Distributional Patterns in Reptiles and Amphibians written by Per Sjögren and published by . This book was released on 1983 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Herpetogeography of Puerto Rico written by Harold Heatwole and published by . This book was released on 1965 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Caribbean Geography written by Thomas A. Rumney and published by Scarecrow Press. This book was released on 2012-05-18 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The islands and seascapes gracing the Caribbean Sea have long been areas of interest and research for geographers and other scholars from around the world. The lands and waters of the Caribbean region have stimulated an extensive body of research and writing across the many fields of geography. This book collects, organizes, and presents as many of these scholarly publications as possible to aid in the teaching, study, and further scholarship of the geography of this area. Chapters are organized into the following categories: general works, cultural and social geography, economic geography, historical geography, physical geography, political geography, and urban geography. The types of publications noted include atlases, books, book chapters, articles, master’s theses, and doctoral dissertations. Entries in each chapter are arranged alphabetically by author’s last name. Where there is more than one publication per author, the earliest is listed first, and the rest are listed chronologically after the first entry. This volume is a convenient and useful collection of existing references on the geography of the Caribbean region that can assist teachers and students in both the study and research of the area.

Download or read book The Conservation and Biogeography of Amphibians in the Caribbean written by Neftalí Ríos-López and published by Pelagic Publishing Ltd. This book was released on 2023-02-28 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: An expansive and detailed review of the biology of Caribbean amphibians, considering their threats, conservation and outlook in a changing world. Amphibians are the group of vertebrates undergoing the fastest rate of extinction; it is urgent that we understand the causes of this and find means of protecting them. This landmark illustrated volume brings together the leading experts in the field. As well as offering an overview of the region as a whole, individual chapters are devoted to each island or island-group and the measures used to protect their amphibians through legislation or nature reserves. The biological background of insular biogeography, including its methods, analysis and results, is reviewed and applied specifically to the problems of Caribbean amphibians – this includes a re-examination of patterns and general ideas about the status of amphibians in the Anthropocene. The Conservation and Biogeography of Amphibians in the Caribbean offers an important baseline against which future amphibian conservation can be measured in the face of climate change, rising sea level and a burgeoning human population. Covers over 300 species.

Download or read book Naturalized Reptiles and Amphibians of the World written by Christopher Lever and published by . This book was released on 2003 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how the various alien reptiles and amphibians now living in the wild throughout the world were first introduced, how they subsequently became naturalized, their present distribution and status in those countries to which they were introduced, and their ecological and socio-economic impact on the native biota and local economies. Many species have had a more or less neutral impact, being neither beneficial nor harmful. However, several have had a positive ecological or socio-economic impact, while some such as the cane toad, have had an extremely destructive effect.The criteria for inclusion of a species are that it should have been imported from its natural range to a new country by human agency--either accidentally or deliberately--and that it should currently be established in the wild in self-maintaining and self-perpetuating populations unsupported by and independent of mankind.

Download or read book Conservation of Caribbean Island Herpetofaunas Volume 2 Regional Accounts of the West Indies written by Adrian Hailey and published by BRILL. This book was released on 2011-04-07 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the islands of the Caribbean have long histories of herpetological exploration and discovery, and even longer histories of human-mediated environmental degradation. Collectively, they constitute a major biodiversity hotspot – a region rich in endemic species that are threatened with extinction. This two-volume series documents the existing status of herpetofaunas (including sea turtles) of the Caribbean, and highlights conservation needs and efforts. Previous contributions to West Indian herpetology have focused on taxonomy, ecology and evolution, particularly of lizards. This series provides a unique and timely review of the status and conservation of all groups of amphibians and reptiles in the region. This volume provides regional accounts of the islands of the West Indies biogeographic region.

Download or read book Conservation of Caribbean Island Herpetofaunas Volume 1 Conservation Biology and the Wider Caribbean written by Adrian Hailey and published by BRILL. This book was released on 2011-04-07 with total page 235 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most of the islands of the Caribbean have long histories of herpetological exploration and discovery, and even longer histories of human-mediated environmental degradation. Collectively, they constitute a major biodiversity hotspot – a region rich in endemic species that are threatened with extinction. This two-volume series documents the existing status of herpetofaunas (including sea turtles) of the Caribbean, and highlights conservation needs and efforts. Previous contributions to West Indian herpetology have focused on taxonomy, ecology and evolution, particularly of lizards. This series provides a unique and timely review of the status and conservation of all groups of amphibians and reptiles in the region. This volume introduces the issues particularly affecting Caribbean herpetofaunas, and gives an overview of evolutionary and taxonomic patterns influencing their conservation.

Download or read book A Biogeography of Reptiles and Amphibians in the G mez Far as Region Tamaulipas Mexico written by Paul Schultz Martin and published by University of Michigan Press. This book was released on 1958 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study analyzes the ecological distributions of reptiles and amphibians in southern Tamaulipas of northeastern Mexico. Observations are confined to a small, though topographically complex, section of the Sierra Madre Oriental to enable a more careful definition of zonal distribution than would be possible had the same amount of fieldwork been expended in a larger geographical unit. Geology, climate, and vegetation are environmental features of primary concern to the animal ecologist, and this study discusses each of these in turn. Such information should clarify the environmental basis for certain distribution patterns both throughout eastern Mexico and, locally, in the Gomez Farias region. In addition it should be useful in comparing this with other peritropical areas.

Download or read book Biogeography and Distribution of the Reptiles and Amphibians on Islands in the Gulf of California Mexico written by Michael E. Soulé and published by . This book was released on 1966 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Patterns of Amphibian and Reptile Distributions Across an Urban to Rural Gradient Within the Santa Monica Mountains National Recreation Area written by Micah Copeland Miles and published by . This book was released on 2019 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Urbanization is a process widely recognized for affecting the distribution and abundance of wildlife. Urbanization represents a syndrome of changes to the biophysical environment associated with increasing human population density; however, in ecological studies, urbanization is often treated as a qualitative, dichotomous landcover state (e.g., urban v. rural) or represented by a single covariate (e.g., area of impervious surface). This is potentially problematic when studying wildlife in urbanizing landscapes because wildlife will respond to the suite of specific changes to the biophysical environment that accompany increased human density. The objectives of my thesis were to analyze changes in habitat attributes in relation to human population density within the Santa Monica Mountains National Recreation Area and to relate patterns of amphibian and reptile distributions to specific environmental attributes or principal components of urbanizing habitats. I use four years of capture data from 79 pitfall arrays. Among our study sites, human population density was negatively correlated with protected area patch size, proximity to paved surfaces, human-made structures and artificial light sources. Models of reptile and amphibian occupancy and abundance generally did not include consistent urban attributes nor the composite index of urban attributes. For the most common lizard species, Western fence lizards (Sceloporus occidentalis) occupancy was positively correlated with human population density and slender salamander (Batrachoseps spp.) occupancy increased within greater proximity to human-made water sources. Occupancy of all other less common reptile species was related to vegetation and/or elevation, not directly related to the anthropogenic impacts of urbanization. Abundance model fit was generally poor; however, results suggest that abundance varied with vegetation among most herpetofaunal species. Our survival models generated similar results for Western fence lizards under count-based modeling approaches; however, both the count-based and capture-mark-recapture approaches may have generated inflated estimates due to low recapture rates and sampling design constraints.

Download or read book The Geographic and Ecological Distribution of the Reptiles and Amphibians of Florid written by Archie Carr and published by . This book was released on 1937 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution of Amphibians and Reptiles on Islands in the Gulf of California written by Robert Ward Murphy and published by . This book was released on 1984 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Distributional Patterns of Reptiles in the United States written by Franklyn W. Adams and published by . This book was released on 1975 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: