Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 31
... interest in ecological diversity is just that - an upsurge of interest - not the development of a new concept . Prior to the publication of The Origin of Species fascination in the diversity of species was largely an act of marvelling ...
... interest in ecological diversity is just that - an upsurge of interest - not the development of a new concept . Prior to the publication of The Origin of Species fascination in the diversity of species was largely an act of marvelling ...
Стр. 306
... interest between these two seemingly deadly foes . And next we note that this common interest is promoted by the process of natural selection ; for it is the great office of this process to eliminate the unfit . If two species standing ...
... interest between these two seemingly deadly foes . And next we note that this common interest is promoted by the process of natural selection ; for it is the great office of this process to eliminate the unfit . If two species standing ...
Стр. 462
... interest in Yellowstone National Park , the issue was given extensive coverage from coast - to - coast . News media personnel also were quick to editorialize the issue since it generated much interest and was very controversial ...
... interest in Yellowstone National Park , the issue was given extensive coverage from coast - to - coast . News media personnel also were quick to editorialize the issue since it generated much interest and was very controversial ...
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