Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 101
... animals . Man has an ecological relationship because he is but one kind of animal among more than a million other kinds sharing this earth , and , as a consequence , is interrelated with and dependent upon many of these other kinds ...
... animals . Man has an ecological relationship because he is but one kind of animal among more than a million other kinds sharing this earth , and , as a consequence , is interrelated with and dependent upon many of these other kinds ...
Стр. 178
... animals being removed from the herd . It is easy to see how the continued culling of individuals with con- tagious diseases could help prevent the diseases from spreading through the entire population . A good example of this effect was ...
... animals being removed from the herd . It is easy to see how the continued culling of individuals with con- tagious diseases could help prevent the diseases from spreading through the entire population . A good example of this effect was ...
Стр. 347
... animals . Wildlife is a crop of the land and like domestic animals must depend upon the quality and quantity of vegetation for its existence . However , since wild animals must normally obtain their food entirely from the local supply ...
... animals . Wildlife is a crop of the land and like domestic animals must depend upon the quality and quantity of vegetation for its existence . However , since wild animals must normally obtain their food entirely from the local supply ...
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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