Proceedings of The Academy of Natural Sciences (Vol. 146, 1995) PDF Download

Author:
Publisher: Academy of Natural Sciences
ISBN: 9781437955453
Category :
Languages : en
Pages : 488

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Author: Gauthreaux
Publisher: Elsevier
ISBN: 0080918336
Category : Technology & Engineering
Languages : en
Pages : 402

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Animal Migration, Orientation, and Navigation presents the various aspects of animal migration, including the evolution of migration, climatic and meteorological influences, and bioenergetics. This book discusses the physiological control, sensory systems, orientation and navigation, and biological clocks and phenology aspects of animal migration. Organized into five chapters, this book begins with an overview of the migration strategies of animals in the context of a space continuum. This text then explains the influence of short- and long-term climatic cycles on the spectrum of migratory patterns in nature. Other chapters consider the energetic requirements of different migration strategies and the energy stores of the migrants. This book discusses as well the physiological basis of animal migration, with emphasis on endocrinal findings on the timing and energetic aspects of different migration strategies. The final chapter deals with the mechanisms used in direction finding by migrating animals. This book is a valuable resource for biologists and ecologists.

Author: Michael J. Lannoo
Publisher: Univ of California Press
ISBN: 9780520235922
Category : Nature
Languages : en
Pages : 1124

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Documents in comprehensive detail a major environmental crisis: rapidly declining amphibian populations and the disturbing developmental problems that are increasingly prevalent within many amphibian species.

Author:
Publisher: Univ of South Carolina Press
ISBN: 9781570036804
Category : Nature
Languages : en
Pages : 464

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Book Description
From mudminnows and sunfishes to lampreys and sturgeons, the guide describes more than one hundred fifty species of freshwater and coastal estuarine fishes that spend all or major portions of their lives in the fresh waters of South Carolina. For each species the authors provide diagnostic characteristics including size, markings, similar species, and sexual dimorphism as well as information on biology, habitat, and distribution. Color photographs and detailed distribution maps accompany each description. --from publisher description.

Author: Gregory P. Dietl
Publisher: University of Chicago Press
ISBN: 022650686X
Category : Science
Languages : en
Pages : 329

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Book Description
In conservation, perhaps no better example exists of the past informing the present than the return of the California condor to the Vermilion Cliffs of Arizona. Extinct in the region for nearly one hundred years, condors were successfully reintroduced starting in the 1990s in an effort informed by the fossil record—condor skeletal remains had been found in the area’s late-Pleistocene cave deposits. The potential benefits of applying such data to conservation initiatives are unquestionably great, yet integrating the relevant disciplines has proven challenging. Conservation Paleobiology gathers a remarkable array of scientists—from Jeremy B. C. Jackson to Geerat J. Vermeij—to provide an authoritative overview of how paleobiology can inform both the management of threatened species and larger conservation decisions. Studying endangered species is difficult. They are by definition rare, some exist only in captivity, and for those still in their native habitats any experimentation can potentially have a negative effect on survival. Moreover, a lack of long-term data makes it challenging to anticipate biotic responses to environmental conditions that are outside of our immediate experience. But in the fossil and prefossil records—from natural accumulations such as reefs, shell beds, and caves to human-made deposits like kitchen middens and archaeological sites—enlightening parallels to the Anthropocene can be found that might serve as a primer for present-day predicaments. Offering both deep-time and near-time perspectives and exploring a range of ecological and evolutionary dynamics and taxa from terrestrial as well as aquatic habitats, Conservation Paleobiology is a sterling demonstration of how the past can be used to manage for the future, giving new hope for the creation and implementation of successful conservation programs.

Author: United States. Congress. Senate. Committee on Environment and Public Works. Subcommittee on Resource Protection
Publisher:
ISBN:
Category : Wildlife conservation
Languages : en
Pages : 1038

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Author: Bruce A. Stein
Publisher: Oxford University Press
ISBN: 0195125193
Category : Science
Languages : en
Pages : 426

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From the lush forests of Appalachia to the frozen tundra of Alaska, and from the tallgrass prairies of the Midwest to the subtropical rainforests of Hawaii, the United States harbors a remarkable array of ecosystems. These ecosystems in turn sustain an exceptional variety of plant and animal life. For species such as salamanders and freshwater turtles, the United States ranks as the global center of diversity. Among the nation's other unique biological features are California's coast redwoods, the world's tallest trees, and Nevada's Devils Hole pupfish, which survives in a single ten-by-seventy-foot desert pool, the smallest range of any vertebrate animal.Precious Heritage draws together for the first time a quarter century of information on U.S. biodiversity developed by natural heritage programs from across the country. This richly illustrated volume not only documents those aspects of U.S. biodiversity that are particularly noteworthy, but also considers how our species and ecosystems are faring, what is threatening them, and what is needed to protect the nation's remaining natural inheritance. Above all, Precious Heritage is a celebration of the extraordinary biological diversity of the United States.

Author: Crossman
Publisher: BRILL
ISBN: 9004628282
Category : Science
Languages : en
Pages : 406

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Author: Robert C. Szaro
Publisher:
ISBN:
Category : Amphibians
Languages : en
Pages : 466

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Book Description
Historically the management of public lands from a multiple use perspective has led to a system that emphasizes those habitat components or faunal elements that primarily resulted in some sort of definable economic value. While this often benefitted other species that were not even considered in the original prescriptions, it also negatively impacted others. We no longer can afford to take this simplistic view of ecosystem management. We need to use a more holistic approach where ecological landscapes are considered as units, and land management practices incorporate all elements into an integrated policy. This includes examining the impacts of proposed land uses on amphibian, reptile, and small mammal populations.

Author: Pete Laurie
Publisher: Univ of South Carolina Press
ISBN: 9781570034602
Category : Nature
Languages : en
Pages : 346

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Book Description
Showcases the vibrant ecosystems sustained by South Carolina's waterways; Sure to foster a greater appreciation for South Carolina's waterways as well as a desire to conserve them for future generations, The South Carolina Aquarium Guide to Aquatic Habitats of South Carolina introduces readers, hikers, boaters, reachers, and students to the remarkable beauty and complexity of the state's wetlands. With almost a quarter of its acreage covered by water, South Carolina is a small state distinguished by biological diversity and an extensive range of habitats. This guide, written in an engaging and easy-to-read style by two experienced naturalists, tells the story of water's inexorable movement from mountains to coast, and of the abundant plant and animal species that benefit from its many stops, starts, and backtrackings along the way. Underscoring the fact that the state's streams, rivers, lakes, swamps, marshes and estuaries form a single, interrelated system, Pete Laurie and David Chamberlain explore the particular wetland habitats in each of South Carolina's five physiographic regions. They describe habitats as varied as waterfalls, blackwater swamps, and tidal creeks and as distin