Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 127
... measure of accuracy . In this way the valuation could be made in the same dimension as the valu- ation of all other resources , and the measurement would be conducted in the same metric . He suggested in effect that note be taken of the ...
... measure of accuracy . In this way the valuation could be made in the same dimension as the valu- ation of all other resources , and the measurement would be conducted in the same metric . He suggested in effect that note be taken of the ...
Стр. 263
... measure BMR at approximately this temperature . Since complete repose can seldom be attained except with humans , animals are often measured over a period of some hours without regard to changes in position , or activity within the ...
... measure BMR at approximately this temperature . Since complete repose can seldom be attained except with humans , animals are often measured over a period of some hours without regard to changes in position , or activity within the ...
Стр. 264
... measured in winter at ambient temperatures of -3.9 and 0.4 C , averaged 1,403 kcal / 24 hrs , or 24.7 kcal / kg . Heat production per unit of weight was higher at the higher environmental temperatures . Measure- ments reported by Silver ...
... measured in winter at ambient temperatures of -3.9 and 0.4 C , averaged 1,403 kcal / 24 hrs , or 24.7 kcal / kg . Heat production per unit of weight was higher at the higher environmental temperatures . Measure- ments reported by Silver ...
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