Author: Richard M. DeGraafPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 472
Book Description
A Comparison of Five National Land Classification Maps
Author: Richard M. DeGraafPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 472
Book Description
A Comparison of Five National Land Classification Maps
Author: Richard M. DeGraafPublisher:
ISBN:
Category : Biotic communities
Languages : en
Pages : 0
Book Description
Agriculture Handbook
Author: Richard M. DeGraafPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 344
Book Description
Set includes revised editions of some issues.
Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 434
Book Description
The Environmental Challenge of the 1990s
Author: Publisher:
ISBN:
Category : Factory and trade waste
Languages : en
Pages : 772
Book Description
USDA Agricultural Handbooks, Numbers 1-690
Author: Ellen Kay MillerPublisher:
ISBN:
Category : Agriculture handbook (United States. Department of Agriculture)
Languages : en
Pages : 70
Book Description
Forest Resource Economics And Policy Research
Author: Paul V. EllefsonPublisher: Routledge
ISBN: 0429722176
Category : Business & Economics
Languages : en
Pages : 437
Book Description
This book reviews the status of discipline-wide activity in forest economics and policy research, especially investment levels, past and current program emphasis, program planning, and organizational involvement. It defines strategic directions for forest economics and policy research.
Neotropical Migratory Birds
Author: Richard DeGraafPublisher: Cornell University Press
ISBN: 1501734016
Category : Nature
Languages : en
Pages : 699
Book Description
Thrushes, warblers, vireos, and tanagers are probably the most familiar of the Neotropical migrants—birds that breed in the United States and Canada, then journey to spend the winter in the Caribbean, Mexico, or southward. But this extraordinary group actually comprises a large number of diverse species, including waterfowl, shorebirds, terns, hawks, flycatchers, and hummingbirds. In their compendious review of information on these birds, Richard M. DeGraaf and John H. Rappole illuminate the need for a thorough understanding of the ecology of each species, one that exte4nds throughout the entire life cycle. The authors argue convincingly that conservation efforts must be based on such an understanding and carried out across a species' range—not limited to the breeding grounds. This book is the first to summarize in one volume much-needed practical data about the distribution and breeding habitat requirements of migratory birds in North and South America. The body of the book consists of natural history accounts of more than 350 species of Neotropical migrants, including a brief description of each bird's range, status, habitats on breeding grounds, nest site, and wintering areas. The authors provide a complete range map of each species' distribution in the Western Hemisphere as well as notes on the distribution—basic data that until recently have largely been unavailable in usable form to ornithologists and land and resource managers. An appendix lists species that are increasing or decreasing at significant rates in various physiographic regions of North America.
Design and Construction of a Low-cost Stream-monitoring Shelter
Author: J. N. KochenderferPublisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 98
Book Description
Publications of the Northeastern Forest Experiment Station
Author: Northeastern Forest Experiment Station (Radnor, Pa.)Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 44
Book Description