Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 50
... practices which might prove advantageous to future farm needs and to birds . Wide - row corn seems to be one such practice ( Vohs , 1958MS ) . What the necessary increase in future livestock production may mean to birds also constitutes ...
... practices which might prove advantageous to future farm needs and to birds . Wide - row corn seems to be one such practice ( Vohs , 1958MS ) . What the necessary increase in future livestock production may mean to birds also constitutes ...
Стр. 351
... practices adopted on a large scale by the individual landowner for the sole or primary benefit of wildlife . 7. The application of wildlife management practices is dependent upon recognition by agriculturists and foresters that these ...
... practices adopted on a large scale by the individual landowner for the sole or primary benefit of wildlife . 7. The application of wildlife management practices is dependent upon recognition by agriculturists and foresters that these ...
Стр. 387
... practices for five years , the public would donate CCC labor to install them , plus the necessary ma- chinery and materials . The offer was widely accepted , but the practices were widely forgotten when the five - year contract period ...
... practices for five years , the public would donate CCC labor to install them , plus the necessary ma- chinery and materials . The offer was widely accepted , but the practices were widely forgotten when the five - year contract period ...
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