Semiannual Report PDF Download
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Author: Iowa Cooperative Fish and Wildlife Research Unit
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 500
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Book Description
Author: Iowa Cooperative Fish and Wildlife Research Unit
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 500
Get Book Here
Book Description
Author: Iowa Cooperative Fish and Wildlife Research Unit
Publisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 96
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Book Description
Author: Iowa State University
Publisher:
ISBN:
Category : Commencement ceremonies
Languages : en
Pages : 382
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Book Description
Author:
Publisher:
ISBN:
Category : Natural history
Languages : en
Pages : 706
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Book Description
Author: David J. Hafner
Publisher: IUCN
ISBN: 9782831704630
Category : Nature
Languages : en
Pages : 188
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Book Description
The first comprehensive treatment of North American rodents of conservation concern. This action plan summarizes the rodent fauna of North America and provides available information on every rodent taxon that has been considered to be of conservation concern by state, provincial and private conservation agencies and regional experts. It is hoped that the survey provided in this action plan will serve as a common ground for all these parties in drawing up conservation strategies for rodents.
Author: S. C. Forrest
Publisher:
ISBN:
Category : Black-footed ferret
Languages : en
Pages : 182
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Book Description
Author: John Aberth
Publisher: Routledge
ISBN: 1317496094
Category : History
Languages : en
Pages : 376
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Book Description
Contesting the Middle Ages is a thorough exploration of recent arguments surrounding nine hotly debated topics: the decline and fall of Rome, the Viking invasions, the Crusades, the persecution of minorities, sexuality in the Middle Ages, women within medieval society, intellectual and environmental history, the Black Death, and, lastly, the waning of the Middle Ages. The historiography of the Middle Ages, a term in itself controversial amongst medieval historians, has been continuously debated and rewritten for centuries. In each chapter, John Aberth sets out key historiographical debates in an engaging and informative way, encouraging students to consider the process of writing about history and prompting them to ask questions even of already thoroughly debated subjects, such as why the Roman Empire fell, or what significance the Black Death had both in the late Middle Ages and beyond. Sparking discussion and inspiring examination of the past and its ongoing significance in modern life, Contesting the Middle Ages is essential reading for students of medieval history and historiography.
Author: Jerry Johnson
Publisher: Rowman & Littlefield
ISBN: 1589795229
Category : Nature
Languages : en
Pages : 185
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Book Description
Visitors to Yellowstone National Park are drawn to the spectacular scenery, unique thermal features, and the large numbers of wild animals easily observed in their natural habitat. The thoughtful visitor to the park cannot help but be captivated by the unparalleled breadth of scientific knowledge needed to understand the intricate interrelationships that make up the yellowstone landscape. Knowing Yellowstone explores how scientists discover what they know about America's first national park and the surrounding lands. The chapter authors are scientists who represent the best of their fields of study. The science they describe is leading the way to our understanding of complex ecosystems worldwide.
Author: John Hoogland
Publisher: Island Press
ISBN: 1597268526
Category : Nature
Languages : en
Pages : 368
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Book Description
The prairie dog is a colonial, keystone species of the grassland ecosystem of western North America. Myriad animals regularly visit colony-sites to feed on the grass there, to use the burrows for shelter or nesting, or to prey on the prairie dogs. Unfortunately, prairie dogs are disappearing, and the current number is only about 2% of the number encountered by Lewis and Clark in the early 1800s. Part I of Conservation of the Black-Tailed Prairie Dog summarizes ecology and social behavior for pivotal issues such as when prairie dogs breed, how far they disperse, how they affect other organisms, and how much they compete with livestock. Part II documents how loss of habitat, poisoning, plague, and recreational shooting have caused the precipitous decline of prairie dog populations over the last 200 years. Part III proposes practical solutions that can ensure the long-term survival of the prairie dog and its grassland ecosystem, and also are fair to private landowners. We cannot expect farmers and ranchers to bear all the costs of conservation while the rest of us enjoy all the benefits. With 700 references, 37 tables, 75 figures and photographs, and a glossary, Conservation of the Black-Tailed Prairie Dog is a unique and vital contribution for wildlife managers, politicians, environmentalists, and curious naturalists.
Author: Fritz L. Knopf
Publisher: Springer Science & Business Media
ISBN: 1475727038
Category : Science
Languages : en
Pages : 329
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Book Description
The frontier images of America embrace endless horizons, majestic herds of native ungulates, and romanticized life-styles of nomadie peoples. The images were mere reflections of vertebrates living in harmony in an ecosystem driven by the unpre dictable local and regional effects of drought, frre, and grazing. Those effects, often referred to as ecological "disturbanees," are rather the driving forces on which species depended to create the spatial and temporal heterogeneity that favored ecological prerequisites for survival. Alandscape viewed by European descendants as monotony interrupted only by extremes in weather and commonly referred to as the "Great American Desert," this country was to be rushed through and cursed, a barrier that hindered access to the deep soils of the Oregon country, the rich minerals of California and Colorado, and the religious freedom sought in Utah. Those who stayed (for lack of resources or stamina) spent a century trying to moderate the ecological dynamics of Great Plains prairies by suppressing fires, planting trees and exotic grasses, poisoning rodents, diverting waters, and homogenizing the dynamies of grazing with endless fences-all creating bound an otherwise boundless vista. aries in Historically, travelers and settlers referred to the area of tallgrasses along the western edge of the deciduous forest and extending midway across Kansas as the "True Prairie. " The grasses thlnned and became shorter to the west, an area known then as the Great Plains.
