Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 455
... Park Service prefers this method to direct - reduction , but the success is limited by weather conditions ... Park Service and the agencies receiving elk . Direct - reduction by Park Personnel is the center of the Yellowstone elk ...
... Park Service prefers this method to direct - reduction , but the success is limited by weather conditions ... Park Service and the agencies receiving elk . Direct - reduction by Park Personnel is the center of the Yellowstone elk ...
Стр. 503
... parks . - Many park herds are migratory and can be controlled by public hunting outside the park boundaries . Especially is this true in mountain parks which usually consist largely of summer game range with relatively little winter ...
... parks . - Many park herds are migratory and can be controlled by public hunting outside the park boundaries . Especially is this true in mountain parks which usually consist largely of summer game range with relatively little winter ...
Стр. 504
... Park Service removed 8,825 animals by shooting and 5,765 by live - trapping ; concurrently , hunters took 40,745 elk from this herd outside the park . Yet the range continued to deteriorate . In the win- ter of 1961-62 there were ...
... Park Service removed 8,825 animals by shooting and 5,765 by live - trapping ; concurrently , hunters took 40,745 elk from this herd outside the park . Yet the range continued to deteriorate . In the win- ter of 1961-62 there were ...
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