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Author : Tom J. Cade
Publisher :
ISBN 13 :
Total Pages : 138 pages
Book Rating : 4.:/5 (17 download)
Download or read book Ecology of the Peregrine and Gyrfalcon Populations in Alaska written by Tom J. Cade and published by . This book was released on 1960 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tom J. Cade
Publisher :
ISBN 13 :
Total Pages : 540 pages
Book Rating : 4.:/5 (27 download)
Download or read book Ecology of the Peregrine and Gyrfalcon Populations in Alaska written by Tom J. Cade and published by . This book was released on 1958 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William A. Burnham
Publisher : Museum Tusculanum Press
ISBN 13 : 9788763511629
Total Pages : 32 pages
Book Rating : 4.5/5 (116 download)
Download or read book Biology of the Peregrine and Gyrfalcon in Greenland written by William A. Burnham and published by Museum Tusculanum Press. This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: A ten year study began in 1972 in West Greenland to investigate the breeding biology of the peregrine falcon. Data on nesting gyrfalcons were also collected. Thirty-four peregrine nesting sites were examined in the 6050 km2 inland study area near Søndre Strømfjord. Limited research also centered in Disko Bugt and Frederikshåb. Peregrines were found nesting predominantly on high, south-facing cliffs, which overlooked large areas. The mean minimum distance between peregrine eyries was 7.7 km for the inland area (1972 and 1973) and 55 km for the coast (1974). Approximately 60 percent of the inland nesting sites were occupied each year. A ten-year average production of 1.90 young per occupied site and 2.78 young per successful site was determined. Lapland longspurs, snow buntings, wheatears, and redpolls comprised 90 percent of the peregrines diet. Raven nests and prey availability may be the most significant factor affecting falcon density. Addled peregrine eggs, eggshell fragments, and peregrine prey species were collected. Whole eggs averaged 14.3 ppm wet weight (305 ppm lipid weight ) DDE, while eggshell measurements showed a 16 percent thinning compared with pre-1940 eggs from Greenland. Prey species carried low levels of DDE. The peregrine population appears to be at a near critical contamination level, and a small increase in DDE level could contribute to a population decline. No indication of a decline has been observed during the study, and the population appears stable. The project banded 185 peregrines, from which 8 recoveries occurred. The recoveries suggest peregrines migrate south to winter in South America.
Author : Ian Newton
Publisher : A&C Black
ISBN 13 : 1408138557
Total Pages : 432 pages
Book Rating : 4.4/5 (81 download)
Download or read book Population Ecology of Raptors written by Ian Newton and published by A&C Black. This book was released on 2010-11-30 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dr Newton's book is concerned with all aspects of population regulation in diurnal birds of prey, their social behaviour, dispersion, numbers, movements, breeding and mortality. He has drawn on his own studies in Scotland and on material and investigations worldwide to produce an authoritative and stimulating synthesis of current thinking and research on the ecological problems of the Falconiformes. He also deals in detail with the effects of pesticides and other pollutants on these birds, and with their scientific management and conservation. The author's lucid style will ensure a wide readership among research workers and the more general audience with an interest in birds of prey. There is a full bibliography and an extensive appendix of tables.
Author : Norman Barichello
Publisher : FriesenPress
ISBN 13 : 1525551043
Total Pages : 183 pages
Book Rating : 4.5/5 (255 download)
Download or read book Gyrfalcon written by Norman Barichello and published by FriesenPress. This book was released on 2020-03-13 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gyrfalcons and humans have shared a remarkable relationship since prehistoric times. These extraordinary arctic falcons have been revered, coveted as an item of commerce, persecuted, and enjoyed as a spectacle of sport for at least ten thousand years. Today, climate change has brought new challenges, with habitat in the far north changing rapidly as natural cycles begin to break down. Drawn from over thirty years of study and observation, this in-depth study provides a comprehensive view of the gyrfalcon’s place in the arctic ecosystem, including their inextricable link to their primary pray, the ptarmigan, and their antagonistic relationship with golden eagles. It explores the connection the bird has had with humanity in both legend and practice, and the challenges it faces as its habitat continues to change. This definitive look at the gyrfalcon shows us both sides of the majestic bird: the master of its domain and a threatened species facing an uncertain future.
Author :
Publisher :
ISBN 13 :
Total Pages : 356 pages
Book Rating : 4.:/5 (319 download)
Download or read book Resource Publication written by and published by . This book was released on 1973 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1058 pages
Book Rating : 4.F/5 ( download)
Download or read book Progress in Sport Fishery Research written by and published by . This book was released on 1970 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.3/5 (555 download)
Download or read book Arctic National Wildlife Refuge (N.W.R.), Coastal Plain Resource Assessment written by and published by . This book was released on 1987 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Park Service
Publisher :
ISBN 13 :
Total Pages : 682 pages
Book Rating : 4.3/5 (91 download)
Download or read book Transactions and Proceedings Series - National Park Service written by United States. National Park Service and published by . This book was released on 1977 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roland H. Wauer
Publisher :
ISBN 13 :
Total Pages : 684 pages
Book Rating : 4.:/5 (319 download)
Download or read book Transactions of the Symposium on the Biological Resources of the Chihuahuan Desert Region, United States and Mexico, Sul Ross State University, Alpine, Texas, 17-18 October 1974 written by Roland H. Wauer and published by . This book was released on 1977 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 630 pages
Book Rating : 4.3/5 ( download)
Download or read book Wildlife Review written by and published by . This book was released on 1960 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.3/5 (555 download)
Download or read book Northwest National Petroleum Reserve -- Alaska written by and published by . This book was released on 2003 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U.S. Fish and Wildlife Service
Publisher :
ISBN 13 :
Total Pages : 204 pages
Book Rating : 4.F/5 ( download)
Download or read book Arctic National Wildlife Refuge, Alaska, Coastal Plain Resource Assessment written by U.S. Fish and Wildlife Service and published by . This book was released on 1986 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 784 pages
Book Rating : 4.:/5 (31 download)
Download or read book Special Bibliography Series written by and published by . This book was released on 1957 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)
Download or read book Falconry written by and published by . This book was released on 1963 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jay H. Lehr
Publisher : John Wiley & Sons
ISBN 13 : 9780471284857
Total Pages : 868 pages
Book Rating : 4.2/5 (848 download)
Download or read book Rational Readings on Environmental Concerns written by Jay H. Lehr and published by John Wiley & Sons. This book was released on 1992-08-04 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: "...the 'proof' of man's destruction of the environment isconsistently flawed.... the scientific method is being abused andignored. The errors are not random, however, but are systematicallybiased toward attempting to prove the guilt of man in the allegeddestruction of the planet. Objective science is disappearing and isbeing replaced by the pursuit of a philosophical agenda." --Richard F. Sanford in Environmentalism and theAssault on Reason Chapter 1 "The public has numerous misconceptions about the relationshipbetween environmental pollution and human cancer. Underlying thesemisconceptions is an erroneous belief that nature is benign." --Bruce N. Ames, Ph.D. and Lois Swirsky Gold, Ph.D inEnvironmental Pollution and Cancer: Some Misconceptions Chapter7 "Greenhouse gases have been increasing in the atmosphere,largely as a result of human activities. However, the climaterecord does not show the temperature increase and other telltalesigns of the expected greenhouse effect. The mathematical modelsused for predicting such effects are evidently not complete enoughto encompass all of the relevant physical processes in theatmosphere, thus throwing grave doubt on the drastic warminghypothesized for the next century." --S. Fred Singer in Global Climate Change: Facts andFiction Chapter 13 "...There is now no prima-facie case for any expensive policy ofsafeguarding species without more extensive analysis than has sofar been done." --Julian L. Simon in Disappearing Species,Deforestation and Data Chapter 26
Author : United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Environmental Protection
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (51 download)
Download or read book Designating a Portion of the Arctic National Wildlife Refuge as Part of the National Wilderness Preservation System written by United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Environmental Protection and published by . This book was released on 1991 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
