Mammals of Colorado, Second Edition

Mammals of Colorado, Second Edition

James P. Fitzgerald

Language: English

Pages: 704

ISBN: 1607320479

Format: PDF / Kindle (mobi) / ePub

Thoroughly revised and updated, Mammals of Colorado, Second Edition is a comprehensive reference on the nine orders and 128 species of Colorado's recent native fauna, detailing each species' description, habitat, distribution, population ecology, diet and foraging, predators and parasites, behavior, reproduction and development, and population status.

An introductory chapter on Colorado's environments, a discussion of the development of the fauna over geologic time, and a brief history of human knowledge of Coloradan mammals provide ecological and evolutionary context. The most recent records of the state's diverse species, rich illustrations (including detailed maps, skull drawings, and photographs), and an extensive bibliography make this book a must-have reference.

Amateur and professional naturalists, students, vertebrate biologists, and ecologists as well as those involved in conservation and wildlife management in Colorado will find value in this comprehensive volume. Co-published with the Denver Museum of Nature & Science

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they may congregate in large numbers at artificial feeding sites in campgrounds and heavily used tourist areas. In such areas, dominance hierarchies form, determining access to provisioned resources. Diurnal activities begin soon after sunrise and give way to midday inactivity on hot days. Home ranges vary from 1 to 12 ha, depending on season and habitat; a density of 5 animals per hectare was found in a meadow along the Cache la Poudre River (K. Gordon 1938), and Friedrichsen (1977) found 8.8

development), and an ongoing epidemic of sylvatic plague (see Barnes 1993; Cully 1993; J. Fitzgerald 1993a; Cully and Williams 2001), all species of prairie dogs declined dramatically in abundance and extent of distribution over the twentieth century, with estimates of decline ranging from 90 percent to more than 99 percent (Lomolino and Smith 2004; S. Miller and Cully 2001). As prairie dogs have declined toward extinction, so too have some of their symbionts, most notably their highly

important “ecosystem engineering” impact of black-tailed prairie dogs was their burrowing and soil disturbance rather than their cropping of vegetation. Prairie dogs were a centerpiece of the review of rangeland rodents and lagomorphs by Fagerstone and Ramey (1996). Black-tailed prairie dogs are highly social animals, more so than other prairie dogs. Using concepts from information theory, Blumstein and Armitage (1998a) calculated an index of “social complexity” for a number of species of

precluded”: warranted by the facts on the ground but precluded by competing priorities and a lack of funding. Principal threats to the species include habitat modification, diminution, destruction, overhunting, disease, and predation (B. Luce 2002; R. Luce 2002). A study conducted for the Colorado Department of Natural Resources estimated that there were just over 3,000 active black-tailed prairie dog colonies in Colorado, covering about 214,000 acres (EDAW 2000). Some 82 percent of existing

mammalogy (1911) provided details on the research of several earlier workers. The revised version of his Mammals of Colorado appeared posthumously (in 1942), as Warren died shortly after reviewing the first proofs. His widow, Maude Baird Warren, saw the book through to completion. Warren’s specimens and accompanying field notes and photographs (now in the University of Colorado Museum of Natural History) remain an invaluable research resource, the enduring legacy of a peerless field naturalist

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