A Comparison of Five National Land Classification Maps
Author : Richard M. DeGraaf
Publisher :
Page : 472 pages
File Size : 10,48 MB
Release : 1988
Category : Agriculture
ISBN :
Author : Richard M. DeGraaf
Publisher :
Page : 472 pages
File Size : 10,48 MB
Release : 1988
Category : Agriculture
ISBN :
Author : Richard M. DeGraaf
Publisher :
Page : 0 pages
File Size : 38,33 MB
Release : 1988
Category : Biotic communities
ISBN :
Author : Richard M. DeGraaf
Publisher :
Page : 344 pages
File Size : 18,31 MB
Release : 1988
Category : Agriculture
ISBN :
Set includes revised editions of some issues.
Author :
Publisher :
Page : 434 pages
File Size : 45,23 MB
Release : 1988
Category : Government publications
ISBN :
Author :
Publisher :
Page : 772 pages
File Size : 25,61 MB
Release : 1990
Category : Factory and trade waste
ISBN :
Author : Ellen Kay Miller
Publisher :
Page : 70 pages
File Size : 33,46 MB
Release : 1992
Category : Agriculture handbook (United States. Department of Agriculture)
ISBN :
Author : Paul V. Ellefson
Publisher : Routledge
Page : 437 pages
File Size : 32,48 MB
Release : 2019-04-12
Category : Business & Economics
ISBN : 0429722176
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.
Author : Richard DeGraaf
Publisher : Cornell University Press
Page : 699 pages
File Size : 27,75 MB
Release : 2019-06-07
Category : Nature
ISBN : 1501734016
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.
Author : J. N. Kochenderfer
Publisher :
Page : 98 pages
File Size : 10,41 MB
Release : 1989
Category : Forests and forestry
ISBN :
Author : Northeastern Forest Experiment Station (Radnor, Pa.)
Publisher :
Page : 44 pages
File Size : 28,29 MB
Release : 1990
Category : Forests and forestry
ISBN :