Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 215
... increase in adrenal weight when placed together , whereas ' incompatible ' ones show an increase ( Southwick 1963 ) . These results emphasize the importance of behaviour in eliciting endocrine responses to increased population size ...
... increase in adrenal weight when placed together , whereas ' incompatible ' ones show an increase ( Southwick 1963 ) . These results emphasize the importance of behaviour in eliciting endocrine responses to increased population size ...
Стр. 322
... increase in the length and complexity of life histories , and an increase in interspecific competition that may re- sult in competitive exclusion of species ( Table 1 , items 12-14 ) are trends that may reduce the number of species that ...
... increase in the length and complexity of life histories , and an increase in interspecific competition that may re- sult in competitive exclusion of species ( Table 1 , items 12-14 ) are trends that may reduce the number of species that ...
Стр. 692
... increase " and by Andrewartha and Birch ( 1954 ) " the innate capacity for increase , " we shall use the notation г , for this parameter . ( A subscript is used with this parameter to avoid confusion with r , the actual rate of ...
... increase " and by Andrewartha and Birch ( 1954 ) " the innate capacity for increase , " we shall use the notation г , for this parameter . ( A subscript is used with this parameter to avoid confusion with r , the actual rate of ...
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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 |
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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