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Restoring North America S Birds

Author: Robert A. Askins
Publisher: Yale University Press
ISBN: 0300127111
Size: 35.40 MB
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DIVThe decline of bird species in a wide range of North American habitats—forests, prairies, shrublands, mountain regions, marshes, and deserts—has inspired two decades of intense scientific study of bird ecology and conservation. But for professional scientists and amateur birders alike, interpreting the results of these diverse studies is often complex and bewildering. This accessible book pulls together recent research on bird species and habitats to show how basic ecological principles apply in seemingly different situations. Robert A. Askins provides an engaging introduction to bird ecology and concepts of landscape ecology, focusing on such intriguing species as Bachman’s Warbler, Red Crossbill, Mountain Plover, and Marbled Murrelet. Understanding the ancient landscapes of North America and how humans have changed them, Askins says, is essential for devising plans to protect and restore bird populations. In addition to such obvious changes to the landscape as the clearing of forests and plowing of prairies, more subtle changes also dramatically affect birds. Species may disappear when we interrupt natural disturbances by suppressing wildfires or trapping out beaver, or when we disrupt habitat with roads and housing developments. Askins challenges some of the assumptions that underlie current conservation efforts and offers concrete recommendations, based on sound ecological principles, for protecting the rich natural diversity of North America’s birds./div

Garden Revolution

Author: Larry Weaner
Publisher: Timber Press
ISBN: 1604696168
Size: 27.65 MB
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"Garden Revolution"shows how an ecological approach to planting can lead to beautiful gardens that buck much of conventional gardening s counter-productive, time-consuming practices. Instead of picking the wrong plant and then constantly tilling, weeding, irrigating, and fertilizing, Larry Weaner advocates for choosing plants that are adapted to the soil and climate of a specific site and letting them naturally evolve over time. The lushly-photographed reference is an important moment in horticulture that will be embraced by anyone looking for a better, smarter way to garden."

Emulating Natural Forest Landscape Disturbances

Author: Ajith H. Perera
Publisher: Columbia University Press
ISBN: 0231129173
Size: 56.26 MB
Format: PDF, ePub
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What do we now know about the origins of plants on land, from an evolutionary and an environmental perspective? The essays in this collection present a synthesis of our present state of knowledge, integrating current information in paleobotany with physical, chemical, and geological data.

The Avian Migrant

Author: John H. Rappole
Publisher: Columbia University Press
ISBN: 0231518633
Size: 35.45 MB
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The purpose of migration, regardless of the distance involved, is to exploit two or more environments suitable for survival or reproduction over time, usually on a seasonal basis. Yet individual organisms can practice the phenomenon differently, and birds deploy unique patterns of movement over particular segments of time. Incorporating the latest research on bird migration, this concise, critical assessment offers contemporary readers a firm grasp of what defines an avian migrant, how the organism came to be, what is known about its behavior, and how we can resolve its enduring mysteries. John H. Rappole's sophisticated survey of field data clarifies key ecological, biological, physiological, navigational, and evolutionary concerns. He begins with the very first migrants, who traded a home environment of greater stability for one of greater seasonality, and uses the structure of the annual cycle to examine the difference between migratory birds and their resident counterparts. He ultimately connects these differences to evolutionary milestones that have shaped a migrant lifestyle through natural selection. Rather than catalogue and describe various aspects of bird migration, Rappole considers how the avian migrant fits within a larger ecological frame, enabling a richer understanding of the phenomenon and its critical role in sustaining a hospitable and productive environment. Rappole concludes with a focus on population biology and conservation across time periods, considering the link between bird migration and the spread of disease among birds and humans, and the effects of global warming on migrant breeding ranges, reaction norms, and macroecology.

Conservation Of Tropical Birds

Author: Navjot S. Sodhi
Publisher: John Wiley & Sons
ISBN: 9781444342598
Size: 30.50 MB
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Conservation of Tropical Birds has been written by four conservation biologists whose expertise spans all the tropical regions of the world. It is the first book to cover all the major issues in tropical bird conservation. Current problems faced by tropical bird conservationists are summarised and potential solutions outlined based on the results of case studies. Birds are key indicators of ecosystem health, and such a well-studied group of organisms, that they provide an excellent lens through which to examine global conservation problems caused by phenomena such as climate change, declines in ecosystem services, habitat loss, fires, overexploitation, and invasive species. Therefore, the book also provides an engaging synopsis of the general issues in conservation and the problems faced by other wildlife. This book serves as an important resource and companion to all people interested in observing and conserving birds in the tropics and elsewhere.

Atlas Of The Breeding Birds Of Ontario 2001 2005

Author: Michael Derrick Cadman
Publisher: Birds Study Canada
ISBN: 9781896059150
Size: 46.32 MB
Format: PDF, Docs
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"The atlas is a monumental achievement. This book is a must for everyone interested in birds, Ontario, and the natural world."-- Margaret Atwood and Graeme Gibson, author ofThe Bedside Book of Birds The most authoritative and up-to-date resource on the birds of Ontario. Ontario's boreal forest is the breeding area for most of North America's songbirds. More than 3,000 birders contributed to this book by surveying the province from Lake Erie to Hudson's Bay. With 400 color photographs, the atlas provides detailed information on the distribution and population status of all the birds that breed in Ontario, which then migrate all over the continent. The 900 maps illustrate and record the breeding population for all the species and their range changes since the first atlas was published 20 years ago. Special "new abundance" maps and population estimates for many species reveal how numbers vary across the province's vast and diverse landscape. The atlas reveals the 10 most populous species in Ontario: Nashville warbler Chipping sparrow Dark-eyed junco Golden-crowned kinglet Magnolia warbler White-throated sparrow Yellow-rumped warbler American robin Red-eyed vireo Swainson's thrush. Among the interesting discoveries these birders brought to light: the Canada goose and the house finch experienced the greatest increases in population, and the common nighthawk and chimney swift experienced the greatest decreases. The Atlas of the Breeding Birds of Ontario is the definitive reference for birders, biologists and any general reader with an interest in nature and the state of the environment.