Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 198
... Field workers in ecology frequently observe animals whose reactions are out of harmony with their environ- ment , and it is one of the aims of wildlife management to prevent their origin . In the experimental field we find such attempts ...
... Field workers in ecology frequently observe animals whose reactions are out of harmony with their environ- ment , and it is one of the aims of wildlife management to prevent their origin . In the experimental field we find such attempts ...
Стр. 423
... field men . Although the wildlife manager is not supposed to be a pathologist he should have a sufficient knowledge of both parasitology and bacteriology to know when the services of specialists in these fields are necessary and how ...
... field men . Although the wildlife manager is not supposed to be a pathologist he should have a sufficient knowledge of both parasitology and bacteriology to know when the services of specialists in these fields are necessary and how ...
Стр. 439
... FIELD ( 1960 ) R. D. Calkins The pressures and competition of civilization during the past few generations have brought into being two new arts . One is that of wildlife management . The other is that of public rela- tions . They came ...
... FIELD ( 1960 ) R. D. Calkins The pressures and competition of civilization during the past few generations have brought into being two new arts . One is that of wildlife management . The other is that of public rela- tions . They came ...
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