Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 507
... refuge system in North America . In 1903 President Theodore Roosevelt designated Pelican Island in Florida as a federal refuge to protect the nesting pelicans , herons and egrets from molestation by plume hunters and fishermen . From ...
... refuge system in North America . In 1903 President Theodore Roosevelt designated Pelican Island in Florida as a federal refuge to protect the nesting pelicans , herons and egrets from molestation by plume hunters and fishermen . From ...
Стр. 516
... refuges are needed , ( 5 ) help refuges function as a coordinated system for some migratory birds , as well as in- dividual cases for a wide variety of wildlife , and ( 6 ) permit reduction of the large regional staffs of refuge ...
... refuges are needed , ( 5 ) help refuges function as a coordinated system for some migratory birds , as well as in- dividual cases for a wide variety of wildlife , and ( 6 ) permit reduction of the large regional staffs of refuge ...
Стр. 520
... Refuges , to be encouraged and permitted insofar as they do not interfere with primary refuge functions . The larger the refuge , the more liberal can be the regulations for hunting and fishing without likelihood of impinging on primary ...
... Refuges , to be encouraged and permitted insofar as they do not interfere with primary refuge functions . The larger the refuge , the more liberal can be the regulations for hunting and fishing without likelihood of impinging on primary ...
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