Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 137
... experience . No adjustment of price to value in a natural supply - and - demand system can exist . His experience is personal , so the value he receives is related to his knowledge and perception . The wildlife user is thus partly the ...
... experience . No adjustment of price to value in a natural supply - and - demand system can exist . His experience is personal , so the value he receives is related to his knowledge and perception . The wildlife user is thus partly the ...
Стр. 138
James Allen Bailey, William Elder, Ted D. McKinney. the experience . He also bears the loss of income he might otherwise have made , termed the " opportunity cost of time " . Profit - benefits minus cost . The cost of a wildlife experience ...
James Allen Bailey, William Elder, Ted D. McKinney. the experience . He also bears the loss of income he might otherwise have made , termed the " opportunity cost of time " . Profit - benefits minus cost . The cost of a wildlife experience ...
Стр. 204
... experience only occurs during adult life , the experiences of infancy and the juvenile period markedly alter later life ( Hymovitch , 1949 ) . The learning process among immature animals is qualitatively different ; where the young are ...
... experience only occurs during adult life , the experiences of infancy and the juvenile period markedly alter later life ( Hymovitch , 1949 ) . The learning process among immature animals is qualitatively different ; where the young are ...
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