Atlas of Nearctic Shorebirds on the Coast of South America PDF Download
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Author: R. I. G. Morrison
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 206
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Book Description
Summaries in French, Portuguese and Spanish.
Author: R. I. G. Morrison
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 206
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Book Description
Summaries in French, Portuguese and Spanish.
Author: Canadian Wildlife Service
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: R. I. G. Morrison
Publisher:
ISBN:
Category : Shore birds
Languages : en
Pages : 0
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Book Description
Author: Canada. Environment Canada
Publisher:
ISBN: 9781100112152
Category : Aerial surveys in wildlife management
Languages : en
Pages : 126
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Book Description
Author: R. I. G. Morrison
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 344
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Book Description
Atlas presenting the results of aerial surveys undertaken to determine the principal wintering areas used by nearctic shorebirds on the coast of South America. The surveys, carried out in January/February from 1982-1986, covered 28,000 km of the South American coastline and included nearly all parts of the coast thought to contain significant habitat for shorebirds. Volume 1 contains an introduction, methods, an overview summarising the distribution of shorebirds on the coast on a continental level, discusses the shorebird distribution in relation to geomorphology and environmental conditions and reviews the need for international cooperation in the conservation of shorebirds, citing the Western Hemisphere Shorebird Reserve Network as an example of a major conservation initiative that has arisen from internationally coordinated distributional studies. Volume 2 gives detailed information on shorebird distribution country by country. Data for each survey sector are summarized by size category on the maps.
Author: R. I. G. Morrison
Publisher:
ISBN: 9781100112145
Category : Aerial surveys in wildlife management
Languages : en
Pages : 126
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Book Description
Author: R. I. G. Morrison
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 116
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Book Description
Presents results of aerial surveys undertaken to determine the principal areas used by nearctic shorebirds and other species of water birds on wintering grounds on the coast of Panama. Additional information is presented on numbers and distributions of these groups of birds on the coast of the Gulf of Panama during migration periods. Surveys of wintering populations were carried out in January 1993, while surveys of populations present during southward and northward migration periods were conducted in October 1991 and February 1988 respectively. Information is also included on aerial survey methodology; the geography, physical oceanography, and climate of Panama; and coastal habitats and their distribution in Panama.
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: Deborah Cramer
Publisher: Yale University Press
ISBN: 0300213719
Category : Science
Languages : en
Pages : 304
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Book Description
Thousands of ravenous tiny shorebirds race along the water’s edge of Delaware Bay, feasting on pin-sized horseshoe-crab eggs. Fueled by millions of eggs, the migrating red knots fly on. When they arrive at last in their arctic breeding grounds, they will have completed a near-miraculous 9,000-mile journey that began in Tierra del Fuego. Deborah Cramer followed these knots, whose numbers have declined by 75 percent, on their extraordinary odyssey from one end of the earth to the other—from an isolated beach at the tip of South America all the way to the icy tundra. In her firsthand account, she explores how diminishing a single stopover can compromise the birds' entire journey, and how the loss of horseshoe crabs—ancient animals that come ashore but once a year—threatens not only the survival of red knots but also human well-being: the unparalleled ability of horseshoe-crab blood to detect harmful bacteria in vaccines, medical devices, and intravenous drugs safeguards human health. Cramer offers unique insight into how, on an increasingly fragile and congested shore, the lives of red knots, horseshoe crabs, and humans are intertwined. She eloquently portrays the tenacity of small birds and the courage of many people who, bird by bird and beach by beach, keep red knots flying.
Author: Phillip Hoose
Publisher: Farrar, Straus and Giroux (BYR)
ISBN: 146686706X
Category : Juvenile Nonfiction
Languages : en
Pages : 160
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Book Description
B95 can feel it: a stirring in his bones and feathers. It's time. Today is the day he will once again cast himself into the air, spiral upward into the clouds, and bank into the wind. He wears a black band on his lower right leg and an orange flag on his upper left, bearing the laser inscription B95. Scientists call him the Moonbird because, in the course of his astoundingly long lifetime, this gritty, four-ounce marathoner has flown the distance to the moon—and halfway back! B95 is a robin-sized shorebird, a red knot of the subspecies rufa. Each February he joins a flock that lifts off from Tierra del Fuego, headed for breeding grounds in the Canadian Arctic, nine thousand miles away. Late in the summer, he begins the return journey. B95 can fly for days without eating or sleeping, but eventually he must descend to refuel and rest. However, recent changes at ancient refueling stations along his migratory circuit—changes caused mostly by human activity—have reduced the food available and made it harder for the birds to reach. And so, since 1995, when B95 was first captured and banded, the worldwide rufa population has collapsed by nearly 80 percent. Most perish somewhere along the great hemispheric circuit, but the Moonbird wings on. He has been seen as recently as November 2011, which makes him nearly twenty years old. Shaking their heads, scientists ask themselves: How can this one bird make it year after year when so many others fall? National Book Award–winning author Phillip Hoose takes us around the hemisphere with the world's most celebrated shorebird, showing the obstacles rufa red knots face, introducing a worldwide team of scientists and conservationists trying to save them, and offering insights about what we can do to help shorebirds before it's too late. With inspiring prose, thorough research, and stirring images, Hoose explores the tragedy of extinction through the triumph of a single bird. Moonbird is one The Washington Post's Best Kids Books of 2012. A Common Core Title.
