Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 177
... effects throughout the community . Obviously any animal that preys on others will bring about changes . Since the wolf is the dominant nonhuman predator on large animals in the Northern Hemisphere , it could be expected to exert ...
... effects throughout the community . Obviously any animal that preys on others will bring about changes . Since the wolf is the dominant nonhuman predator on large animals in the Northern Hemisphere , it could be expected to exert ...
Стр. 214
... effects ( Bronson & Eleftheriou 1964 ) . Reproduc- tive function is depressed in all but the dominant mice ( Christian 1961 ) . Splenic weight , resulting from increased haemopoiesis , increases in subor- dinate mice ( Rapp & Christian ...
... effects ( Bronson & Eleftheriou 1964 ) . Reproduc- tive function is depressed in all but the dominant mice ( Christian 1961 ) . Splenic weight , resulting from increased haemopoiesis , increases in subor- dinate mice ( Rapp & Christian ...
Стр. 408
... effects . Then the total variation in the experiment can be par- titioned into that attributable to effects of the treatments ; to variations among the blocks ; and to the failure of the different treatments to behave alike in the ...
... effects . Then the total variation in the experiment can be par- titioned into that attributable to effects of the treatments ; to variations among the blocks ; and to the failure of the different treatments to behave alike in the ...
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 |
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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