An Annotated Check List of the Amphibians and Reptiles of Colorado

An Annotated Check List of the Amphibians and Reptiles of Colorado PDF Author: Thomas Paul Maslin
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 114

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An Annotated Check List of the Amphibians and Reptiles of Colorado

An Annotated Check List of the Amphibians and Reptiles of Colorado PDF Author: Thomas Paul Maslin
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 114

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Wildlife Abstracts

Wildlife Abstracts PDF Author: U.S. Fish and Wildlife Service
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 826

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Alien Reptiles and Amphibians

Alien Reptiles and Amphibians PDF Author: Fred Kraus
Publisher: Springer Science & Business Media
ISBN: 1402089465
Category : Nature
Languages : en
Pages : 571

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Book Description
Transportation of species to areas outside their native ranges has been a feature of human culture for millennia. During this time such activities have largely been viewed as beneficial or inconsequential. However, it has become increasingly clear that human-caused introductions of alien biota are an ecological disruption whose consequences rival those of better-known insults like chemical pollution, habitat loss, and climate change. Indeed, the irreversible nature of most alien-species int- ductions makes them less prone to correction than many other ecological problems. Current reshuffling of species ranges is so great that the present era has been referred to by some as the “Homogocene” in an effort to reflect the unique mag- tude of the changes being made. These alien interlopers often cause considerable ecological and economic d- age where introduced. Species extinctions, food-web disruptions, community alte- tions, ecosystem conversion, changes in nutrient cycling, fisheries collapse, watershed degradation, agricultural loss, building damage, and disease epidemics are among the destructive – and frequently unpredictable – ecological and economic effects that invasive alien species can inflict. The magnitude of these damages c- tinues to grow, with virtually all environments heavily used by humans now do- nated by alien species and many “natural” areas becoming increasingly prone to alien invasion as well. Attention to this problem has increased in the past decade or so, and efforts to prevent or limit further harm are gaining wider scientific and political acceptance.

FWS/OBS.

FWS/OBS. PDF Author:
Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 504

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Annotated Bibliography of Colorado Vertebrate Zoology, 1776-1995

Annotated Bibliography of Colorado Vertebrate Zoology, 1776-1995 PDF Author: Richard G. Beidleman
Publisher:
ISBN:
Category : Vertebrates
Languages : en
Pages : 464

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Book Description
This compilation catalogues the writings on the diverse vertebrate species within Colorado's boundaries beginning with the Escalante Expedition, which skirted the western slope a century before Colorado's statehood. Because of its geographical location-between East and West, North and Southwest, its altitudinal range of more than 11,000 feet, and its consequent variety of ecosystems from desert shrub to alpine tundra, Colorado ranks high among the fifty states for its variety of vertebrates. With such an abundance of these vertebrates, biologists and observant laypersons have had much to write about. This comprehensive bibliography is divided into major sections: General Natural History, Fishes, Amphibians, Reptiles, Birds and Mammals. Each taxonomic group has a general section, followed by listings at taxon levels down to alphabetically-arranged species. The bibliography is especially complete with respect to periodical literature through 1995. Colorado Vertebrate Zoology cites resources for studying both well-researched vertebrates and those needing more study.

Annotated Bibliography of Natural Resource Information

Annotated Bibliography of Natural Resource Information PDF Author:
Publisher:
ISBN:
Category : Natural history
Languages : en
Pages : 212

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An Annotated Checklist and Key to the Snakes of Mexico

An Annotated Checklist and Key to the Snakes of Mexico PDF Author: Hobart Muir Smith
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 922

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Book Description
This bulletin supplies checklists and keys for identification of Mexican snake species. This work arose partially out of a joint, active interest resulting from a collecting trip to Mexico in 1932. Additionally, in gathering information, the authors studied specimens in the United States National Museum and other collections. The authors acknowledge that this treatise can be revised over the years as new materials are found and described. Where available, the authors have included United States National Museum catalog numbers for type specimens in the species descriptions.

Catalog

Catalog PDF Author: Denver Public Library. Conservation Library
Publisher:
ISBN:
Category : Conservation of natural resources
Languages : en
Pages : 594

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Northwest Colorado coal

Northwest Colorado coal PDF Author: United States. Bureau of Land Management. Colorado State Office
Publisher:
ISBN:
Category : Coal
Languages : en
Pages : 600

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Amphibians and Reptiles of New Mexico

Amphibians and Reptiles of New Mexico PDF Author: William G. Degenhardt
Publisher: UNM Press
ISBN: 9780826338112
Category : Nature
Languages : en
Pages : 512

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Book Description
The definitive reference source covering the 123 species of amphibians and reptiles found in New Mexico, including over 130 color plates and 100 maps.