Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 396
... concerned with the interrelationships of living things , and people are among those things . The biologist , through his understanding of resource limitations , must be a conservationist . In the future he must be more and more concerned ...
... concerned with the interrelationships of living things , and people are among those things . The biologist , through his understanding of resource limitations , must be a conservationist . In the future he must be more and more concerned ...
Стр. 569
... concerned with research evaluation and technique . It is notable that , although the preser- vation of ducks was then as now a problem of major concern , only two papers discussed wetlands and drainage , while there were 62 titles on ...
... concerned with research evaluation and technique . It is notable that , although the preser- vation of ducks was then as now a problem of major concern , only two papers discussed wetlands and drainage , while there were 62 titles on ...
Стр. 574
... concerned with the quality , condition and availability of the various cover types ; and the palatability , availability , dependability , yield , persistence , and location with reference to cover of the various food species . Yield ...
... concerned with the quality , condition and availability of the various cover types ; and the palatability , availability , dependability , yield , persistence , and location with reference to cover of the various food species . Yield ...
Содержание
PERSPECTIVES | 1 |
Thinking like a mountain | 9 |
Lost margins in the abandoned farm | 19 |
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Readings in Wildlife Conservation James Allen Bailey,William Elder,Ted D. McKinney Просмотр фрагмента - 1974 |
Часто встречающиеся слова и выражения
acres adult agencies animals annual areas Barbary sheep behavior big game biological biologists birds black-tailed deer breeding burning Canada Canada geese caribou carrying capacity changes chaparral conservation cost crop Dall sheep diversity ecological economic ecosystem effects environment example exotic experience factors farm fertility Fish and Game fish and wildlife forage forest game management geese goose groups grouse growth habitat harvest herd hunters hunting important increase individual kill land Leopold limited living mallards marshes ment method Mississippi Flyway moose mortality muskrats National Park natural organic Park Service percent plants population density prairie predation problem production quail recreation refuge reproductive result ruffed grouse season seed sharecropping shrubland social soil species sport square miles succession territory tion types ungulates unit vegetation waterfowl white-tailed deer wild Wildl wildlife management wildlife resources winter range wolf wolves