Monthly Catalog of United States Government Publications
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Page : 912 pages
File Size : 30,11 MB
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Category : Government publications
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Page : 912 pages
File Size : 30,11 MB
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Category : Government publications
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Page : 1094 pages
File Size : 45,80 MB
Release : 1982
Category : Government publications
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Page : 304 pages
File Size : 21,33 MB
Release : 1992
Category : Forests and forestry
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Author : Gary E. Glass
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Page : 204 pages
File Size : 31,24 MB
Release : 1980
Category : Acid pollution of rivers, lakes, etc
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Page : 628 pages
File Size : 22,37 MB
Release : 1978
Category : Ecological risk assessment
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Author : Frank G. Hawksworth
Publisher : DIANE Publishing
Page : 427 pages
File Size : 34,40 MB
Release : 1998-04
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ISBN : 0788142011
Contents: generalized life cycle; sexual reproductive biology; mechanism and trends of evolution; biogeography and paleogeographic history; host relationships; ecological relationships; biotic associates; host-parasite physiology; anatomy of the dwarf mistletoe shoot system; endophytic system; pathogenic effects; control; systematics: philosophy, problems, and criteria for classification; molecular systematics; formal taxonomy. Extensive bibliography. Scientific and common names; collecting and curating techniques; herbaria consulted; specimens examined; glossary; subject and species indexes.
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Page : 372 pages
File Size : 45,38 MB
Release : 2003
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Author : Deborah C. Hayes
Publisher : Springer
Page : 666 pages
File Size : 31,5 MB
Release : 2014-07-22
Category : Science
ISBN : 1461418186
USDA Forest Service Experimental Forests and Ranges (EFRs) are scientific treasures, providing secure, protected research sites where complex and diverse ecological processes are studied over the long term. This book offers several examples of the dynamic interactions among questions of public concern or policy, EFR research, and natural resource management practices and policies. Often, trends observed – or expected -- in the early years of a research program are contradicted or confounded as the research record extends over decades. The EFRs are among the few areas in the US where such long-term research has been carried out by teams of scientists. Changes in society’s needs and values can also redirect research programs. Each chapter of this book reflects the interplay between the ecological results that emerge from a long-term research project and the social forces that influence questions asked and resources invested in ecological research. While these stories include summaries and syntheses of traditional research results, they offer a distinctly new perspective, a larger and more complete picture than that provided by a more typical 5-year study. They also provide examples of long-term research on EFRs that have provided answers for questions not even imagined at the time the study was installed.
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Page : 256 pages
File Size : 21,13 MB
Release : 1985
Category : Forests and forestry
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Author : 国立国会図書館 (Japan)
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Page : 672 pages
File Size : 43,80 MB
Release : 1972
Category : Science
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