Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 309
... complex structure of the plant and animal community , much as the upward flow of sap in a tree depends on its complex cellular organization . Without this complexity normal circulation would not occur . Structure means the ...
... complex structure of the plant and animal community , much as the upward flow of sap in a tree depends on its complex cellular organization . Without this complexity normal circulation would not occur . Structure means the ...
Стр. 321
... complex organic structure that mitigates perturbations of the physical environment . Severe stress or rapid changes brought about by outside forces can , of course , rob the system of these protective mechanisms and allow irruptive ...
... complex organic structure that mitigates perturbations of the physical environment . Severe stress or rapid changes brought about by outside forces can , of course , rob the system of these protective mechanisms and allow irruptive ...
Стр. 463
... complex- ities and consequences of the various alternatives never were mentioned . The issue is complex and not all newspaper articles opposed the direct- reduction . Some articles recognized the complex problems involved and tried to ...
... complex- ities and consequences of the various alternatives never were mentioned . The issue is complex and not all newspaper articles opposed the direct- reduction . Some articles recognized the complex problems involved and tried to ...
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