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Captured Eagles

Author : Frederick A. Johnsen
ISBN : 9781782009733
Genre : History
File Size : 88.72 MB
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The growth in size, lethality, and technology of the German Luftwaffe was of concern to some defense planners in the United States before American entry into the war. Learning about the Luftwaffe became a significant effort once the conflict broke out in Europe. From defectors with German aircraft to battlefield trophies and combat crew reports, the race to understand German aero technology took on sometimes heroic proportions. After the war, German technology infused American aerospace developments in many ways: German ribbon parachutes were evaluated for high-speed bailouts; sweptwing leading edge slat technology benefited the F-86 Sabre; overall comprehension of sweptwing benefits to fast jet aircraft was validated; pulse jet V1s and supersonic V2 rockets boosted American drone weapon, ballistic missile, and space exploration efforts. In this volume Frederick A. Johnsen traces that path of discovery.
Category: History

Decline And Recovery Of The Island Fox

Author : Timothy J. Coonan
ISBN : 9781139491563
Genre : Nature
File Size : 82.18 MB
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Native only to the California Channel Islands, the island fox is the smallest canid in North America. Populations on four of the islands were threatened to extinction in the 1990s due to human-mediated predation and disease. This is the first account of the natural history and ecology of the island fox, illustrating both the vulnerability of island ecosystems and the efficacy of cooperative conservation measures. It explains in detail the intense conservation actions required to recover fox populations, such as captive breeding and reintroduction, and large-scale ecosystem manipulation. These actions were successful due in large part to extraordinary collaboration among the scientists, managers and public advocates involved in the recovery effort. The book also examines the role of some aspects of island fox biology, characteristic of the 'island syndrome', in facilitating their recovery, including high productivity and an apparent adaptation to periodic genetic bottlenecks.
Category: Nature

Salamanca 1812

Author : Yale University Press
ISBN : 0300087195
Genre : History
File Size : 53.31 MB
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In separate commentary sections he evaluates the sources and indicates the inevitable contradictions and gaps in evidence that have emerged during his research. Complete with maps, battleground plans, line drawings and photographs, this compelling book provides acute analysis of a single day in Salamanca that changed European history."--Jacket.
Category: History

The Bald Eagle In Canada

Author : Jonathan M. Gerrard
ISBN : STANFORD:36105032968484
Genre : Nature
File Size : 53.65 MB
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Part I examines the life and contributions of Charles L. Broley. Part II provides an overview of the status of bald eagles in Canada. Part III and Part IV contain original manuscripts and reviews, refereed and non-refereed which focus on bald eagles.
Category: Nature


Author :
ISBN : UOM:39015023885455
Genre : Oil pollution of rivers, harbors, etc
File Size : 59.90 MB
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CD-ROM copy for 2001 contains also abstracts since 1969, full text proceedings for 1995-2001, and technical papers for 1995-1999.
Category: Oil pollution of rivers, harbors, etc

Predation In Vertebrate Communities

Author : Bogumila Jedrzejewska
ISBN : 3540641386
Genre : Nature
File Size : 25.40 MB
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Predation, one of the most dramatic interactions in animals' lives, has long fascinated ecologists. This volume presents carnivores, raptors and their prey in the complicated net of interrelationships, and shows them against the background of their biotic and abiotic settings. It is based on long-term research conducted in the best preserved woodland of Europe's temperate zone. The role of predation, whether limiting or regulating prey (ungulate, rodent, shrew, bird, and amphibian) populations, is quantified and compared to parts played by other factors: climate, food resources for prey, and availability of other potential resources for predators.
Category: Nature