Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 250
... winter mortality has occurred , except in a few isolated winter areas , even during severe winters . The relatively high hunting pressure and the year around illegal killing keep the deer population in general within the carrying ...
... winter mortality has occurred , except in a few isolated winter areas , even during severe winters . The relatively high hunting pressure and the year around illegal killing keep the deer population in general within the carrying ...
Стр. 380
... winter of 1945 , when homesteaders watched moose browsing close by and children on their way to school dodged them . Moose found extensive winter range in the hundreds of square miles of browse , and summered in the damp sub- alpine ...
... winter of 1945 , when homesteaders watched moose browsing close by and children on their way to school dodged them . Moose found extensive winter range in the hundreds of square miles of browse , and summered in the damp sub- alpine ...
Стр. 628
... winter . Of the 170,000 flooded acres in the reservoir , half are about the lake chain considered here . Of this acreage about two - fifths supported deciduous vegetation and hence was winter range of prime importance . Most of the ...
... winter . Of the 170,000 flooded acres in the reservoir , half are about the lake chain considered here . Of this acreage about two - fifths supported deciduous vegetation and hence was winter range of prime importance . Most of 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