Biology Of The Peregrine And Gyrfalcon In Greenland
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Biology Of The Peregrine And Gyrfalcon In Greenland
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Author : William A. Burnham
language : en
Publisher: Museum Tusculanum Press
Release Date : 1984
Biology Of The Peregrine And Gyrfalcon In Greenland written by William A. Burnham and has been published by Museum Tusculanum Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Science categories.
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.
The Peregrine Falcon In Greenland
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Author : James T. Harris
language : en
Publisher:
Release Date : 1981
The Peregrine Falcon In Greenland written by James T. Harris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Nature categories.
The History And Range Expansion Of Peregrine Falcons In The Thule Area Northwest Greenland
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Author : Andrew G. Gosler
language : en
Publisher: Museum Tusculanum Press
Release Date : 2012-07-01
The History And Range Expansion Of Peregrine Falcons In The Thule Area Northwest Greenland written by Andrew G. Gosler and has been published by Museum Tusculanum Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-07-01 with Science categories.
This book covers the discovery and history of the most northern breeding population of Peregrine Falcons in the world, near Thule Air Base in northwest Greenland (75.9–77.6° N). Although the region was explored by scientific expeditions as early as 1818, Peregrines were not documented in the area until the 1930s. By the early 1990s the population had become well established, with a warming climate enabling Peregrines from further south to expand their breeding range northward. Here Burnham and his co-authors present their comprehensive findings on the biology and ecology of this population based on thirteen years of research from 1993 to 2005.
Illustrated Moss Flora Of Arctic North America And Greenland
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Author : Gert S. Mogensen
language : en
Publisher: Museum Tusculanum Press
Release Date : 1985
Illustrated Moss Flora Of Arctic North America And Greenland written by Gert S. Mogensen and has been published by Museum Tusculanum Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Mosses categories.
Populations And Breeding Schedules Of Waders Charadrii In High Arctic Greenland
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Author : Hans Meltofte
language : en
Publisher: Museum Tusculanum Press
Release Date : 1985
Populations And Breeding Schedules Of Waders Charadrii In High Arctic Greenland written by Hans Meltofte and has been published by Museum Tusculanum Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Charadriidae categories.
The Gyrfalcon
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Author : Eugene Potapov
language : en
Publisher: A&C Black
Release Date : 2010-01-29
The Gyrfalcon written by Eugene Potapov and has been published by A&C Black this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-29 with Nature categories.
WINNER OF THE WILDLIFE SOCIETY'S 'BEST SCIENCE BOOK 2006' AWARD This book is the first monograph on one of the most beautiful and admired birds in the world. The Gyrfalcon is the world's largest and most powerful falcon - a truly awe-inspiring bird which inhabits the ferociously inhospitable Arctic taiga, from Greenland and Iceland right across Siberia and northern Canada. Its plumage varies from a dark mottled grey to pure white - the white birds in particular are coveted by birders and falconers. Like other titles in the series, it covers all aspects of the species' biology, taxonomy, distribution, status and historical associations with mankind. The result is an exhaustively researched and enthrallingly readable biography of a spectacular bird, illustrated throughout with photographs and line drawings.
The Gyrfalcon
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Author : Eugene Potapov
language : en
Publisher: Bloomsbury Publishing
Release Date : 2010-06-30
The Gyrfalcon written by Eugene Potapov and has been published by Bloomsbury Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-06-30 with Nature categories.
WINNER OF THE WILDLIFE SOCIETY'S 'BEST SCIENCE BOOK 2006' AWARD This book is the first monograph on one of the most beautiful and admired birds in the world. The Gyrfalcon is the world's largest and most powerful falcon - a truly awe-inspiring bird which inhabits the ferociously inhospitable Arctic taiga, from Greenland and Iceland right across Siberia and northern Canada. Its plumage varies from a dark mottled grey to pure white - the white birds in particular are coveted by birders and falconers. Like other titles in the series, it covers all aspects of the species' biology, taxonomy, distribution, status and historical associations with mankind. The result is an exhaustively researched and enthrallingly readable biography of a spectacular bird, illustrated throughout with photographs and line drawings.
Adventure Tourism
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Author : David Huddart
language : en
Publisher: Springer Nature
Release Date : 2019-10-25
Adventure Tourism written by David Huddart and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-25 with Science categories.
This textbook presents a comprehensive overview of the environmental impacts of various types of adventure tourism and how these can be best managed. This volume follows on from the authors previous textbook – ‘Outdoor Recreation: Environmental Impacts and Management’ and continues the aim of developing a deeper understanding of how tourist numbers impact the environment and to provide practical solutions to these problems. Combining their own first-hand experience and research with extensive literature review the authors' present several popular adventure tourism destinations from across the globe, including the Arctic, the Himalayas, Africa, Australia and Scotland as case studies. Chapters cover the particular challenges faced by each region: including impacts on animals and birds; the spread of invasive plant species and diseases; trail impacts on vegetation; impacts on geological, historical and archaeological sites and pollution and waste issues. A discussion and evaluation of the possible management actions for minimising these impacts and how outdoor recreation tourists can be regulated concludes each chapter. This practical and engaging textbook will be invaluable to students and scholars of adventure tourism and outdoor recreation as well as practitioners and managers working in the field.
Raptor Survey Techniques
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Author : Mark R. Fuller
language : en
Publisher:
Release Date : 1987
Raptor Survey Techniques written by Mark R. Fuller and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Birds of prey categories.
The Peregrine Falcon In Greenland
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Author : James T. Harris
language : en
Publisher:
Release Date : 1979
The Peregrine Falcon In Greenland written by James T. Harris and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with categories.