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Author: Haverschmidt
Publisher: BRILL
ISBN: 9004631054
Category : Science
Languages : en
Pages : 150
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Author: Haverschmidt
Publisher: BRILL
ISBN: 9004631054
Category : Science
Languages : en
Pages : 150
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Book Description
Author:
Publisher: Brill Archive
ISBN:
Category :
Languages : en
Pages : 154
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Author: François Haverschmidt
Publisher: Brill Archive
ISBN:
Category : Barges
Languages : en
Pages : 158
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Author: F. Haverschmidt
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author:
Publisher:
ISBN:
Category : Black-tailed godwit
Languages : en
Pages :
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Author: Andrew Darby
Publisher: Simon and Schuster
ISBN: 1643135775
Category : Nature
Languages : en
Pages : 304
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A trans-world journey with an extraorindary shorebird—from Australia's southern ocean to the Arctic and back—that explores the mysteries of the natural world and its power to heal. As the sun lowered and turned Gulf St Vincent fiery, they each called a high-pitched 'peeooowiii!', flashed their black wing-pits, spread their tail skirts and took flight... In a luminous new boook, Andrew Darby follows the odysseys of two seemingly-humble Grey Plovers, little-known migratory shorebirds, as they take previously uncharted ultramarathon flights from the southern coast of Australia to Arctic breeding grounds. On these death-defying flights they dodge predators, typhoons, exhaustion, and countless other dangers before they can breed...and then survive the jrouney all over again and return south to their feeding grounds. But the greatest threat to these, and other long-distance migrants on the flyway, is China's "dragon economy," which is engulfing their vital Yellow Sea staging spots. In Flight Lines, we meet the dedicated people of all nationalities and backgrounds working to save these intrepid birds, from Russia to Alaska, from the rim of the Arctic Sea to the coasts of the Southern Ocean. Out of their hard-won science Darby finds hope for the birds—an unexpected bright light for our times. But his journey to understand these marvellous birds almost ends when he is suddenly diagnosed with an incurable cancer. Then he finds science coming to his rescue too, as his own story and the journey of these little birds intersect in an unexpected and beautiful way.
Author: M. Engelmoer
Publisher: Springer Science & Business Media
ISBN: 9401150168
Category : Science
Languages : en
Pages : 330
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Morphometrical differentiation 63 Prediction of breeding origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Body mass 69 Primary moult 69 Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 The taxonomy of the Eurasian Golden Plover 69 The existence of a partial breast-feather moult during breeding 69 Morphometrical differentiation between both sexes . . . . . . . . . . . . . . . . . . . . . . . . 70 The occurrence of primary moult on the breeding grounds 70 Summary 70 6 Grey Plover - Pluvialis squatarola 71 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Morphometrical differentiation 77 Prediction of breeding origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Accuracy 81 Exclusivity 81 Contact zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Body mass 85 Primary moult 85 Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 The taxonomy of the Grey Plover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Small size at northern latitudes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Morphometrical variation in the Palearctic 87 Summary 87 7 Red Knot - Calidris canutus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Morphometrical differentiation 93 Prediction of breeding origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Accuracy 99 Exclusivity 101 Contact zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Body mass 102 Primary moult 103 Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 of the Knot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 The taxonomy Is the knot breeding in Yakutia? 106 Different degrees of geographical variation in the d'd' and !f!f 106 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 8 Sanderling - Calidris alba 109 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111 Morphometrical differentiation 111 Prediction of breeding origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Accuracy 116 Exclusivity 118 Contact zones . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Body mass 118 Primary moult 118 Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 The taxonomy of the Sanderling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118 Sexing Sanderlings 119 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 VI 9 Curlew Sandpiper - Calidris ferruginea 121 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123 Morphometrical differentiation 123 Prediction of a bird's sex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Accuracy 127 Exclusivity 127 Body mass 127 Primary moult 127 Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 The taxonomy of the Curlew Sandpiper 127 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Author: Bernd Heinrich
Publisher: HMH
ISBN: 0547523637
Category : Nature
Languages : en
Pages : 373
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“A noted naturalist explores the centrality of home in the lives of humans and other animals . . . A special treat for readers of natural history” (Kirkus Reviews). Every year, many species make the journey from one place to another, following the same paths and ending up in the same places. Every year since boyhood, the acclaimed scientist and author Bernd Heinrich has done the same, returning to a beloved patch of western Maine woods. Which led him to wonder: What is the biology in humans of this primal pull toward a particular place, and how is it related to animal homing? In The Homing Instinct, Heinrich explores the fascinating mysteries of animal migration: how geese imprint true visual landscape memory; how scent trails are used by many creatures to locate their homes with pinpoint accuracy; and how even the tiniest of songbirds are equipped for solar and magnetic orienteering over vast distances. And he reminds us that to discount our human emotions toward home is to ignore biology itself. “A graceful blend of science and memoir . . . [Heinrich’s] ability to linger and simply be there for the moment when, for instance, an elderly spider descends from a silken strand to take the insect he offers her is the heart of his appeal.” —Julie Zickefoose, The Wall Street Journal “Deep and insightful writing.” —David Gessner, The Washington Post
Author: Nikita Chernetsov
Publisher: Springer Science & Business Media
ISBN: 3642290205
Category : Science
Languages : en
Pages : 188
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Book Description
Most birds cannot cover the distance between their breeding and winter quarters in one hop. They have to make multiple flights alternated with stopovers. Which factors govern the birds’ decisions to stop, to stop for how long, when to resume flight? What is better – to accumulate much fuel and to make long flights for many hundreds of kilometres, or to travel in small steps? Is it necessary to find habitats similar to the breeding ones or other habitats would do? Are long migratory flights indeed so costly energetically as usually assumed? This monograph summarizes our current knowledge on the ecology of songbird migrants during migratory stopovers and on their behaviour.
Author: Jeannie Baker
Publisher: Candlewick
ISBN: 1536210579
Category : Juvenile Nonfiction
Languages : en
Pages : 49
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“It’s hard to imagine a more powerful treatment of migration: Baker conveys the strength of the birds and the fragility of their habitat with equal care.” — Publishers Weekly (starred review) Each year, bar-tailed godwits undertake the longest unbroken migration of any bird, flying from their breeding grounds in the Arctic to Australia and New Zealand and back again. They follow invisible pathways — pathways that have been followed for thousands of years — while braving hunger and treacherous conditions to reach their destination. In Circle, Jeannie Baker follows the godwits' incredible flight, taking readers over awe-inspiring scenes as the birds spread their wings above such beautiful landmarks as the Great Barrier Reef and China’s breathtaking cityscapes for an unforgettable journey.
