Download or read book History and Present Status of the Breeding Colonies of the White Pelican Pelecanus Erythrorhynchos in the United States written by Benjamin Hunter Thompson and published by . This book was released on 1932 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book History and Present Status of the Breeding Colonies of the White Pelican Pelecanus Erythrorhynchos in the United States written by Benjamin Hunter Thompson and published by . This book was released on 1932 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book History and Present Status of the Colonies of White Pelican Pelecanus Erythrorhynchos in the United States written by Benjamin Hunter Thompson and published by . This book was released on 1932 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Impacts of Coal Surface Mining on 25 Migratory Bird Species of High Federal Interest written by Judith Scherpelz Armbruster and published by . This book was released on 1983 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Birds of British Columbia written by Robert Wayne Campbell and published by UBC Press. This book was released on 1990 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first volume in a 4-volume set, which is the culmination of two decades of research and writing. For the first time, the natural history, migration patterns, habitat requirements, reproductive biology, and distribution of the province's birdlife are combined in one publication. This is a reprint of the original volume published in 1990 by the Royal British Columbia Museum and the Canadian Wildlife Service. No changes or updates in content have been made from the original edition.

Download or read book Birds of British Columbia Volume 1 written by Wayne Campbell and published by UBC Press. This book was released on 2007-10-01 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first volume of a remarkable four-volume set on the birds of British Columbia covers eight-six species of nonpasserines, from loons through to waterfowl. Detailed species accounts provide unprecedented coverage of these birds, presenting a wealth of information on the ornithological history, habitat, breeding habits, migratory movements, seasonality, and distribution patterns. Introductory chapters look at the province’s ornithological history, its environment and the methodology used in the volumes.

Download or read book Birds of British Columbia Volume 2 written by Wayne Campbell and published by UBC Press. This book was released on 2007-10-01 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume completes the nonpasserine species and contains accounts for the diurnal birds of prey through woodpeckers.

Download or read book Yellowstone National Park written by United States. National Park Service and published by . This book was released on 1940 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Bibliography of National Parks and Monuments West of the Mississippi River written by United States. National Park Service and published by . This book was released on 1941 with total page 638 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 1935 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Aerial Survey of Waterbird Colonies Along the Upper Mississippi River and Their Relationship to Dredged Material Deposits written by David H. Thompson and published by . This book was released on 1978 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Science and Ecosystem Management in the National Parks written by William L. Halvorson and published by University of Arizona Press. This book was released on 2023-01-17 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our national parks are more than mere recreational destinations. They are repositories of the nation's biological diversity and contain some of the last ecosystem remnants needed as standards to set reasonable goals for sustainable development throughout the land. Nevertheless, public pressure for recreation has largely precluded adequate research and resource monitoring in national parks, and ignorance of ecosystem structure and function in parks has led to costly mistakes--such as predator control and fire suppression--that continue to threaten parks today. This volume demonstrates the value of ecological knowledge in protecting parks and shows how modest investments in knowledge of park ecosystems can pay handsome dividends. Science and Ecosystem Management in the National Parks presents twelve case studies of long-term research conducted in and around national parks that address major natural resource issues. These cases demonstrate how the use of longer time scales strongly influence our understanding of ecosystems and how interpretations of short-term patterns in nature often change when viewed in the context of long-term data sets. Most importantly, they show conclusively that scientific research significantly reduces uncertainty and improves resource management decisions. Chosen by scientists and senior park managers, the cases offer a broad range of topics, including: air quality at Grand Canyon; interaction between moose and wolf populations on Isle Royale; control of exotic species in Hawaiian parks; simulation of natural fire in the parks of the Sierra Nevada; and the impact of urban expansion on Saguaro National Monument. Because national parks are increasingly beset with conflicting views of their management, the need for knowledge of park ecosystems becomes even more critical--not only for the parks themselves, but for what they can tell us about survival in the rest of our world. This book demonstrates to policymakers and managers that decisions based on knowledge of ecosystems are more enduring and cost effective than decisions derived from uninformed consensus. It also provides scientists with models for designing research to meet threats to our most precious natural resources. "If we can learn to save the parks," observe Halvorson and Davis, "perhaps we can learn to save the world."

Download or read book George Mel ndez Wright written by Jerry Emory and published by University of Chicago Press. This book was released on 2023-04-03 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In 1927, at the age of twenty-three, George Meléndez Wright conceptualized and eventually funded the first wildlife survey of western National Parks, radically changing how the National Park Service (NPS) would manage natural resources under its charge. By the time Wright arrived in Yosemite National Park to work as a ranger naturalist-the first Hispanic person to occupy a professional position in the NPS-he had already visited every national park in the Western United States. At a time when national parks routinely fed bears garbage as part of "shows" and killed "bad" predators such as wolves and coyotes, Wright's new ideas for conservation set the stage for modern scientific management of parks and other public lands. Before his revolutionary ideas began to influence Park Service policy, however, Wright faced persistent pushback by an entrenched culture that disregarded wildlife apart from the role that fauna played as a tourist attraction. Nonetheless, he prevailed. Wright died tragically in a car accident in 1936, while working to establish parks and wildlife refuges on the US-Mexico border, and yet, to this day, he remains a celebrated figure among conservationists, wildlife experts, and park managers. Jerry Emory, a writer connected to Wright's family, draws on hundreds of letters, field notes, interviews, and other primary documents to offer both a biography of Wright and a historical account of a crucial period in the evolution of our parks. Including a foreword by former National Park Service director Jonathan Jarvis, the book explores and celebrates Wright's vision for science-based wildlife management and his vocal support of wilderness in our parks and asks if current practices have achieved his goals"--

Download or read book Wildlife Research and Management Leaflet written by and published by . This book was released on 1935 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of the Public Documents of the Congress and of All Departments of the Government of the United States for the Period from to written by United States. Superintendent of Documents and published by . This book was released on with total page 2608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Bibliography of California Ornitholgy written by Joseph Grinnell and published by . This book was released on 1909 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pamphlets on Biology written by and published by . This book was released on 1919 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: