Studies in Avian Biology: Arctic Shorebirds in North America (PDF)
A Decade of Monitoring
(Sprache: Englisch)
Each year shorebirds from North and South America migrate thousands of miles to spend the summer in the Arctic. There they feed in shoreline marshes and estuaries along some of the most productive and pristine coasts anywhere. With so much available food...
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Each year shorebirds from North and South America migrate thousands of miles to spend the summer in the Arctic. There they feed in shoreline marshes and estuaries along some of the most productive and pristine coasts anywhere. With so much available food they are able to reproduce almost explosively; and as winter approaches, they retreat south along with their offspring, to return to the Arctic the following spring. This remarkable pattern of movement and activity has been the object of intensive study by an international team of ornithologists who have spent a decade counting, surveying, and observing these shorebirds. In this important synthetic work, they address multiple questions about these migratory bird populations. How many birds occupy Arctic ecosystems each summer? How long do visiting shorebirds linger before heading south? How fecund are these birds? Where exactly do they migrate and where exactly do they return? Are their populations growing or shrinking? The results of this study are crucial for better understanding how environmental policies will influence Arctic habitats as well as the far-ranging winter habitats used by migratory shorebirds.
Autoren-Porträt
Jonathan R. Bart is a Research Wildlife Biologist with the Forest and Rangeland Ecosystem Science Center of the USGS in Boise, ID. Victoria Johnston is a former biologist, now Policy Analyst, for Environment Canada and is based in Yellowknife, Northwest Territories.
Bibliographische Angaben
- 2012, 320 Seiten, Englisch
- Herausgegeben: Jonathan Robert Bart, Victoria Helen Johnston
- Verlag: University of California Press
- ISBN-10: 0520953495
- ISBN-13: 9780520953499
- Erscheinungsdatum: 01.09.2012
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- Größe: 23 MB
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Englisch
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