The Annual Avian Breeding Cycle At High Latitudes In The Canadian Arctic
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The Annual Avian Breeding Cycle At High Latitudes In The Canadian Arctic
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Author : David Freeland Parmelee
language : en
Publisher:
Release Date : 1957
The Annual Avian Breeding Cycle At High Latitudes In The Canadian Arctic written by David Freeland Parmelee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Bird surveys categories.
The Annual Avian Breeding Cycle At High Latitude In The Canadian Arctic
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Author : David Freedland Parmelee
language : en
Publisher:
Release Date : 1957
The Annual Avian Breeding Cycle At High Latitude In The Canadian Arctic written by David Freedland Parmelee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Birds categories.
Wildlife Abstracts
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Author : U.S. Fish and Wildlife Service
language : en
Publisher:
Release Date : 1954
Wildlife Abstracts written by U.S. Fish and Wildlife Service and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1954 with Animals categories.
Wildlife Review
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Author :
language : en
Publisher:
Release Date : 1956
Wildlife Review written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1956 with Wild life, Conservation of categories.
Effects Of Climate Variation On The Breeding Ecology Of Arctic Shorebirds
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Author : Hans Meltofte
language : en
Publisher: Museum Tusculanum Press
Release Date : 2007
Effects Of Climate Variation On The Breeding Ecology Of Arctic Shorebirds 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 2007 with Nature categories.
About 50 species of shorebirds breed in the Arctic, where they constitute the most characteristic component of the tundra avifauna. Here, we review the impact of weather and climate on the breeding cycle of shorebirds based on extensive studies conducted across the Arctic. Conditions for breeding shorebirds are highly variable among species, sites and regions, both within and between continents. Weather effects on breeding are most moderate in the Low Arctic of northern Europe and most extreme in the Siberian High Arctic. The decision of whether or not to breed upon arrival on the breeding grounds, the timing of egg-laying and the chick-growth period are most affected by annual variation in weather. In large parts of the Arctic, clutch initiation dates are highly correlated with snowmelt dates and in regions and years where extensive snowmelt occurs before or soon after the arrival of shorebirds, the decision to breed and on the breeding ecology of clutch initiation dates appear to be a function of food availability for laying females. Once incubation is initiated, adult shorebirds appear fairly resilient to variations in temperature with nest abandonment primarily occurring in case of severe weather with new snow covering the ground. Feeding conditions for chicks, a factor highly influenced by weather, affects juvenile production in most regions. Predation has a very strong impact on breeding productivity throughout the Arctic and subarctic, with lemming Dicrostonyx spp. and Lemmus spp. fluctuations strongly influencing predation rates, particularly in the Siberian Arctic. The fate of Arctic shorebirds under projected future climate scenarios is uncertain, but High Arctic species and populations appear particularly at risk. Climatic amelioration may benefit Arctic shorebirds in the short term by increasing both survival and productivity, whereas in the long term habitat changes both on the breeding grounds and on the temperate and tropical non-breeding areas may put them under considerable pressure and may bring some of them near to extinction. Their relatively low genetic diversity, which is thought to be a consequence of survival through past climatically-driven population bottlenecks, may also put them more at risk to anthropogenic-induced climate variation than other avian taxa.
George Miksch Sutton
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Author : Jerome A. Jackson
language : en
Publisher: University of Oklahoma Press
Release Date : 2007
George Miksch Sutton written by Jerome A. Jackson and has been published by University of Oklahoma Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Biography & Autobiography categories.
The first biography of the distinguished ornithologist
Canadiana
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Author :
language : en
Publisher:
Release Date : 1957
Canadiana written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1957 with Canada categories.
The Migration Ecology Of Birds
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Author : Ian Newton
language : en
Publisher: Elsevier
Release Date : 2023-12-02
The Migration Ecology Of Birds written by Ian Newton and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-02 with Science categories.
The Migration Ecology of Birds, Second Edition covers all aspects of this absorbing subject, including migratory processes, problems of navigation and vagrancy, timing and physiological control of migration, large-scale movement patterns, the effects of recent climate change, the problems that migrants face, and the factors that limit their populations. This book provides a thorough and in-depth review of the state of the science, with the text supplemented by abundant tables, maps and diagrams. Written by a world-renowned avian ecology and migration researcher, this book reveals the extraordinary adaptability of birds to the variable and changing conditions across the globe. This book represents the most updated and detailed review of bird migration, its evolution, ecology and bird physiology. Written in a clear and readable style, it will appeal not only to migration researchers in the field and ornithologists, but to anyone with an interest in this fascinating subject. Features updated and trending ecological aspects, including various types of bird movements, dispersal and nomadism, and how they relate to food supplies and other external conditions Contains numerous tables, maps, diagrams, a glossary, and a bibliography of more than 3,000 up-to-date references Written by an active researcher with a distinguished career in avian ecology, including migration research
Dissertation Abstracts
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Author :
language : en
Publisher:
Release Date : 1958
Dissertation Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1958 with Dissertations, Academic categories.
Wild Birds And Avian Influenza
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Author : Darrell Whitworth
language : en
Publisher: Food & Agriculture Org.
Release Date : 2007
Wild Birds And Avian Influenza written by Darrell Whitworth and has been published by Food & Agriculture Org. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Medical categories.
The highly pathogenic avian influenza H5N1 strain has spread from domestic poultry to a large number of species of free-ranging wild birds, including non-migratory birds and migratory birds that can travel thousands of kilometers each year. The regular contact and interaction between poultry and wild birds has increased the urgency of understanding wild bird diseases and the transmission mechanisms that exist between the poultry and wild bird sectors, with a particular emphasis on avian influenza. Monitoring techniques, surveillance, habitat use and migration patterns are all important aspects of wildlife and disease ecology that need to be better understood to gain insights into disease transmission between these sectors. This manual contains chapters on the basic ecology of avian influenza and wild birds, capture and marking techniques (ringing, color marking and satellite telemetry), disease sampling procedures, and field survey and monitoring procedures.--Publisher's description.