Holarctic Lepidoptera

Holarctic Lepidoptera PDF Author:
Publisher:
ISBN:
Category : Lepidoptera
Languages : en
Pages : 444

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Holarctic Lepidoptera

Holarctic Lepidoptera PDF Author:
Publisher:
ISBN:
Category : Lepidoptera
Languages : en
Pages : 444

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Federal Register

Federal Register PDF Author:
Publisher:
ISBN:
Category : Delegated legislation
Languages : en
Pages : 308

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Endangered Species Technical Bulletin

Endangered Species Technical Bulletin PDF Author:
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 8

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American Butterflies

American Butterflies PDF Author:
Publisher:
ISBN:
Category : Butterflies
Languages : en
Pages : 978

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Status of Pollinators in North America

Status of Pollinators in North America PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309102898
Category : Technology & Engineering
Languages : en
Pages : 327

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Book Description
Pollinators-insects, birds, bats, and other animals that carry pollen from the male to the female parts of flowers for plant reproduction-are an essential part of natural and agricultural ecosystems throughout North America. For example, most fruit, vegetable, and seed crops and some crops that provide fiber, drugs, and fuel depend on animals for pollination. This report provides evidence for the decline of some pollinator species in North America, including America's most important managed pollinator, the honey bee, as well as some butterflies, bats, and hummingbirds. For most managed and wild pollinator species, however, population trends have not been assessed because populations have not been monitored over time. In addition, for wild species with demonstrated declines, it is often difficult to determine the causes or consequences of their decline. This report outlines priorities for research and monitoring that are needed to improve information on the status of pollinators and establishes a framework for conservation and restoration of pollinator species and communities.

Ecosystems of Florida

Ecosystems of Florida PDF Author: Ronald L. Myers
Publisher: University Press of Florida
ISBN: 9780813010229
Category : History
Languages : en
Pages : 765

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Book Description
Between roughly 25 and 31 degrees north latitude, a combination of flat topography, poor soils, and limited surface water produce deserts nearly everywhere on earth. In Florida, however, these conditions support a lavish biota, more diverse than that of any other state east of the Mississippi. In this first comprehensive guide to the state's natural resources in sixty years, thirty top scholars describe the character, relationships, and importance of Florida's ecosystems, the organisms that inhabit them, the forces that maintain them, and the agents that threaten them. From pine flatwoods to coral reef, Ecosystems of Florida provides a detailed, comprehensive, authoritative account of the peninsular state's complex, fragile environments.

Backpacker

Backpacker PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 140

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Backpacker brings the outdoors straight to the reader's doorstep, inspiring and enabling them to go more places and enjoy nature more often. The authority on active adventure, Backpacker is the world's first GPS-enabled magazine, and the only magazine whose editors personally test the hiking trails, camping gear, and survival tips they publish. Backpacker's Editors' Choice Awards, an industry honor recognizing design, feature and product innovation, has become the gold standard against which all other outdoor-industry awards are measured.

FWS/OBS.

FWS/OBS. PDF Author:
Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 574

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Endangered Species Technical Bulletin Insert

Endangered Species Technical Bulletin Insert PDF Author:
Publisher:
ISBN:
Category : Endangered species
Languages : en
Pages : 70

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Ecological Impacts of Climate Change

Ecological Impacts of Climate Change PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309127106
Category : Science
Languages : en
Pages : 70

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Book Description
The world's climate is changing, and it will continue to change throughout the 21st century and beyond. Rising temperatures, new precipitation patterns, and other changes are already affecting many aspects of human society and the natural world. In this book, the National Research Council provides a broad overview of the ecological impacts of climate change, and a series of examples of impacts of different kinds. The book was written as a basis for a forthcoming illustrated booklet, designed to provide the public with accurate scientific information on this important subject.