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Author: Jonathan Robert Bart
Publisher: Univ of California Press
ISBN: 0520273109
Category : Medical
Languages : en
Pages : 320
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Book Description
"/i/Arctic Shorebirds in North America//i/ represents a study that is one of the remarkable achievements of wildlife fieldcraft, like those done by Aldo Leopold in the 1930s and by the Craighead Brothers in the 1960s. To conduct a study of this scientific caliber in the great expanse and harsh climate of the Arctic makes it one of the great wildlife investigations whose value will only grow with time."--Larry Niles, Conserve Wildlife Foundation of New Jersey "It is most timely that Jonathan Bart and Victoria Johnston have gathered information on shorebirds that breed in the Arctic regions of North America. Data on these birds is generated at a wide range of locations by many different individuals and teams, and this book puts it into perspective. It is particularly valuable to have this treatise when so many shorebird species worldwide are in marked decline."--Clive Minton, Australasian Wader Studies Group "When the PRISM program for pan-Arctic shorebird monitoring was introduced, everyone agreed with its laudable aims, but it seemed impractical. How could shorebird biologists with limited time and resources acquire robust data on the size and trend of shorebird populations across the American Arctic? Now, the credibility gap has been bridged. /i/Arctic Shorebirds in North America//i/ presents the rigorous, practical methods that will be the foundation of Arctic shorebird monitoring for years to come. I look forward to Arctic PRISM becoming the keystone of shorebird conservation in the Western Hemisphere."--Humphrey Sitters, editor of /i/Wader Study Group Bulletin//i/
Author: Jonathan Robert Bart
Publisher: Univ of California Press
ISBN: 0520273109
Category : Medical
Languages : en
Pages : 320
Get Book Here
Book Description
"/i/Arctic Shorebirds in North America//i/ represents a study that is one of the remarkable achievements of wildlife fieldcraft, like those done by Aldo Leopold in the 1930s and by the Craighead Brothers in the 1960s. To conduct a study of this scientific caliber in the great expanse and harsh climate of the Arctic makes it one of the great wildlife investigations whose value will only grow with time."--Larry Niles, Conserve Wildlife Foundation of New Jersey "It is most timely that Jonathan Bart and Victoria Johnston have gathered information on shorebirds that breed in the Arctic regions of North America. Data on these birds is generated at a wide range of locations by many different individuals and teams, and this book puts it into perspective. It is particularly valuable to have this treatise when so many shorebird species worldwide are in marked decline."--Clive Minton, Australasian Wader Studies Group "When the PRISM program for pan-Arctic shorebird monitoring was introduced, everyone agreed with its laudable aims, but it seemed impractical. How could shorebird biologists with limited time and resources acquire robust data on the size and trend of shorebird populations across the American Arctic? Now, the credibility gap has been bridged. /i/Arctic Shorebirds in North America//i/ presents the rigorous, practical methods that will be the foundation of Arctic shorebird monitoring for years to come. I look forward to Arctic PRISM becoming the keystone of shorebird conservation in the Western Hemisphere."--Humphrey Sitters, editor of /i/Wader Study Group Bulletin//i/
Author: Daniel Giraud Elliot
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 430
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Book Description
Author: Kevin Karlson
Publisher: Quick Reference Publishing, Incorporated
ISBN: 9781936913787
Category : Nature
Languages : en
Pages : 11
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Book Description
Shorebirds of North Americacontains over 200 color photos of all the breeding and commonly occurring shorebird species found in North America. Species accounts show breeding and nonbreeding plumages when differences occur, as well as many immature and juvenile plumages. Some similar species are shown side by side to allow for easier ID comparison, such as the dowitchers, yellowlegs and willets.
Author: Hans Meltofte
Publisher: Museum Tusculanum Press
ISBN: 9788763512794
Category : Nature
Languages : en
Pages : 52
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Book Description
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.
Author: Paul Sterry
Publisher: Princeton University Press
ISBN: 069113426X
Category : Nature
Languages : en
Pages : 336
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Book Description
The finest, most lavishly illustrated photographic guide to the birds of eastern North America Combining informative and accessible text, up-to-date maps, and—above all—stunning color photographs, this is the best and most lavishly illustrated photographic guide to the birds of eastern North America. All of the images have been carefully selected to convey both the sheer beauty and the key identification features of each bird, and many of the photos are larger than those found in other guides. Wherever possible, a variety of plumages are pictured, providing visual coverage and usefulness matching any artwork-illustrated field guide. And many of the images are state-of-the-art digital photographs by Brian Small, one of North America's finest bird photographers. These pictures, many seen here for the first time, reproduce a previously unimaginable level of detail. Finally, the ranges of nearly all species are shown on maps from the Cornell Laboratory of Ornithology, the authority on North American birding. New and experienced birders alike will find this guide indispensable: the clear layout will help novices easily identify the birds they see, while the superb photographs will help seasoned birders confirm identifications. The best, most lavishly illustrated photographic guide to the region's birds Larger color photos than most other field guides Fresh contemporary design—clear, easy-to-use, and attractive Informative, accessible, and authoritative text Range maps from the Cornell Laboratory of Ornithology Covers entire eastern half of mainland North America and the arctic and subarctic territorial islands of the U.S. and Canada
Author: Arthur Cleveland Bent
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 500
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Book Description
Includes material on phalaropes, snipes, woodcocks, sandpipers, godwits, willets, oyster catchers, tattlers, plovers, curlews, and others.
Author: Michael O'Brien
Publisher: Houghton Mifflin Harcourt
ISBN: 9780618432943
Category : Nature
Languages : en
Pages : 500
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Book Description
When many birders go out looking at shorebirds, they see a distant mud flat full of grayish brown birds in various shapes and sizes and have no idea where to begin the identification process. When advanced birders look at that same flock of shorebirds, they can identify the vast majority of birds with a quick binocular scan. Experts use the simplest, most easily observed characteristics--size, structure, behavior, and general color patterns--almost subconsciously, and can identify most birds even before looking carefully at plumage details. Now birders of all levels can learn how to identify these wildly popular birds quickly and with much less effort. This guide provides more than 870 stunning color photographs, sequenced to give a general impression of a species first and progressing to a more detailed image of the bird throughout its life cycle. Captions list characteristics in order of importance, reflecting the thought process that experts use to identify birds.
Author: Chris G. Earley
Publisher: Buffalo, N.Y. ; Richmond Hill, Ont. : Firefly Books
ISBN:
Category : Nature
Languages : en
Pages : 164
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Book Description
An indispensable field guide and reference for birders. The eastern Continental Divide from Florida to Ontario contains the world's largest network of freshwater lakes, rivers, wetlands and coastal waters. It is home to an astonishingly large variety of ducks, geese, and other waterfowl. Waterfowl of Eastern North America is a richly illustrated pocket-sized field guide for birders and naturalists. Full-color photographs show these birds in their natural habitats in each season. Comparison pages group similar-looking birds on a single spread for quick reference. Concise and accurate information on each species includes: Common name Biological classification Identifying features Seasonal changes to plumage color. The detailed information on each species is concisely organized and includes the differences between male and female, seasonal and immature plumage, morphs and distinctive markings. The coverage includes: Ducks and geese Swans and pelicans Loons, grebes and cormorants. Waterfowl of Eastern North America also features essential information for birders who want to support conservation groups that protect waterfowl and their quickly disappearing habitats.
Author: Stephen Charles Brown
Publisher: Braided River
ISBN: 9780898869750
Category : Nature
Languages : en
Pages : 204
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Book Description
Two hundred color images celebrating the birds that journey to the Arctic National Wildlife Refuge each year are accompanied by essays by noted biologists and conservationists.
Author: Arthur Cleveland Bent
Publisher:
ISBN:
Category : Birds
Languages : en
Pages : 512
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Book Description
Includes material on phalaropes, snipes, woodcocks, sandpipers, godwits, willets, oyster catchers, tattlers, plovers, curlews, and others.
