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Author: Ian C. T. Nisbet
Publisher:
ISBN: 9781877973482
Category : Nature
Languages : en
Pages : 188
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Book Description
This monograph reviews the distribution and numbers of 83 marine species (31 breeding species) that occur regularly along the east coast of the US, in the Bay of Fundy, or in waters of the continental shelf. It assesses trends in numbers since 1970, threats, and research and conservation needs. It compiles data from many published and unpublished sources and has a bibliography of more than 600 entries, which should make it an invaluable reference work. Pelagic birds.
Author: Ian C. T. Nisbet
Publisher:
ISBN: 9781877973482
Category : Nature
Languages : en
Pages : 188
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Book Description
This monograph reviews the distribution and numbers of 83 marine species (31 breeding species) that occur regularly along the east coast of the US, in the Bay of Fundy, or in waters of the continental shelf. It assesses trends in numbers since 1970, threats, and research and conservation needs. It compiles data from many published and unpublished sources and has a bibliography of more than 600 entries, which should make it an invaluable reference work. Pelagic birds.
Author: Nick Davies
Publisher: Bloomsbury Publishing USA
ISBN: 1620409534
Category : Nature
Languages : en
Pages : 374
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Book Description
A gifted biologist's careful and beguiling study of why cuckoos have got away with tricking other birds into hatching and raising their young for thousands of years. The familiar call of the common cuckoo, “cuck-oo,” has been a harbinger of spring ever since our ancestors walked out of Africa many thousands of years ago. However, for naturalist and scientist Nick Davies, the call is an invitation to solve an enduring puzzle: how does the cuckoo get away with laying its eggs in the nests of other birds and tricking them into raising young cuckoos rather than their own offspring? Early observers who noticed a little warbler feeding a monstrously large cuckoo chick concluded the cuckoo's lack of parental care was the result of faulty design by the Creator, and that the hosts chose to help the poor cuckoo. These quaint views of bad design and benevolence were banished after Charles Darwin proposed that the cuckoo tricks the hosts in an evolutionary battle, where hosts evolve better defenses against cuckoos and cuckoos, in turn, evolve better trickery to outwit the hosts. For the last three decades, Davies has employed observation and field experiments to unravel the details of this evolutionary “arms race” between cuckoos and their hosts. Like a detective, Davies and his colleagues studied adult cuckoo behavior, cuckoo egg markings, and cuckoo chick begging calls to discover exactly how cuckoos trick their hosts. For birding and evolution aficionados, The Cuckoo is a lyrical and scientifically satisfying exploration of one of nature's most astonishing and beautiful adaptations.
Author:
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 188
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Book Description
Author: Theodore W. Pietsch
Publisher:
ISBN: 9780295743745
Category : Nature
Languages : en
Pages : 0
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Book Description
Fishes of the Salish Sea is the definitive guide to the identification and history of the marine and anadromous fishes of Puget Sound and the Straits of Georgia and Juan de Fuca. This comprehensive three-volume set, featuring striking illustrations of the Salish Sea's 260 fish species by noted illustrator Joseph Tomelleri, details the ecology and life history of each species and recounts the region's rich heritage of marine research and exploration. Beginning with jawless hagfishes and lampreys and ending with the distinctive Ocean Sunfish, leading scientists Theodore Wells Pietsch and James Orr present the taxa in phylogenetic order, based on classifications that reflect the most current scientific knowledge. Illustrated taxonomic keys facilitate fast and accurate species identification. These in-depth, thoroughly documented, and yet accessible volumes will prove invaluable to marine biologists and ecologists, natural resource managers, anglers, divers, students, and all who want to learn about, marvel over, and preserve the vibrant diversity of Salish Sea marine life. Comprehensive accounts of 260 fish species Brilliant color plates of all treated species Illustrated taxonomic keys for easy species identification In-depth history of Salish Sea research and exploration
Author: Gary A. Wobeser
Publisher: Springer Science & Business Media
ISBN: 1461559510
Category : Science
Languages : en
Pages : 318
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Book Description
Management of wild waterfowl has become increasingly intensive. Many birds now hatch in managed nesting cover or in artificial nesting structures, use man-made wetlands, and winter on crowded refuges while consuming a grain diet The water they use is often limited in supply and may contain residues from its many prior users. Unfortunately, intensified management often results in new problems, among which disease is important There are many similarities between the current form of management used for some waterfowl and that used in domestic animals. In both, the objective is to maintain a healthy, productive population. Dealing with health problems in waterfowl will benefit from combining the skills of veterinary medicine and wildlife ecology. Revisiting this book after 15 years allowed me to consider changes at the interface between the two disciplines. Veterinary medicine traditionally has been concerned with the individual and with treating sick animals, while the ecologist is concerned with populations and the manager has limited interest in treating sick birds. During this period there has been a marked increase in awareness among veterinarians that they have a responsibility in wildlife and conservation biology. Curricula of many veterinary colleges now include material on non-domestic animals and attempt to put disease in an ecological context. Also during this time, waterfowl managers have become more aware of disease as a factor in population biology and there are early attempts to put numbers to "disease" in models of continental waterfowl populations.
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: Lynn R. Batdorf
Publisher:
ISBN: 9781886833005
Category : Boxwood
Languages : en
Pages : 99
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Book Description
Author: Stan Tekiela
Publisher: Adventure Publications(MN)
ISBN: 9781591930389
Category : Nature
Languages : en
Pages : 272
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Book Description
It's two great tools in one field-friendly package! Get this exceptional value that includes the Birds of Minnesota Field Guide and the Birds of Minnesota Audio CDs with a 36-page booklet. The book and CDs are designed for each other. The track number at the bottom of each page in the field guide directs you to the correct CD track. Likewise, the audio CD index references the field guide. Make bird watching more enjoyable, simple and informative with this amazing set.
Author:
Publisher:
ISBN: 9780891332541
Category : Historic buildings
Languages : en
Pages : 960
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Book Description
Lists buildings, structures, sites, objects, and districts that possess historical significance as defined by the National Register Criteria for Evaluation, in every state.
Author:
Publisher: Preservation Press
ISBN:
Category : Architecture
Languages : en
Pages : 974
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Book Description
