Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 349
... DENSITY . LARGE POTENTIAL INCREASE IN ANIMAL POPULATION DENSITY . MEDIUM SOIL FERTILITY LOW SOIL FERTILITY MODERATELY INTENSIVE LAND EXTENSIVE LAND USE . I USE . ! ADEQUATE COVER AND WATER . MEDIUM QUALITY ANIMALS OF HIGH POPULATION ...
... DENSITY . LARGE POTENTIAL INCREASE IN ANIMAL POPULATION DENSITY . MEDIUM SOIL FERTILITY LOW SOIL FERTILITY MODERATELY INTENSIVE LAND EXTENSIVE LAND USE . I USE . ! ADEQUATE COVER AND WATER . MEDIUM QUALITY ANIMALS OF HIGH POPULATION ...
Стр. 676
... density . Teer et al . ( 1965 ) measured ovulation rates on a white - tailed deer herd that declined to a density of nine deer per 100 acres and subsequently increased to a density of 18 deer per 100 acres . Ovulation rates were about ...
... density . Teer et al . ( 1965 ) measured ovulation rates on a white - tailed deer herd that declined to a density of nine deer per 100 acres and subsequently increased to a density of 18 deer per 100 acres . Ovulation rates were about ...
Стр. 692
... density between zero and K. Two important implications of this formula derive ( 1 ) when the rate of increase per individual in the population , dN / N dt , and hereinafter designated by the notation r , is plotted as a function of density ...
... density between zero and K. Two important implications of this formula derive ( 1 ) when the rate of increase per individual in the population , dN / N dt , and hereinafter designated by the notation r , is plotted as a function of density ...
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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