Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
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Стр. 378
... Forest of Halliday ( 1937 ) . In dry areas with southern exposure in the southern part of the park , the humid forest was replaced by one of Douglas fir ( Pseudotsuga menziesii ) with grassy openings . This fir forest occurred mainly on ...
... Forest of Halliday ( 1937 ) . In dry areas with southern exposure in the southern part of the park , the humid forest was replaced by one of Douglas fir ( Pseudotsuga menziesii ) with grassy openings . This fir forest occurred mainly on ...
Стр. 385
... forests and pasture . Considering the productive capacity of the land and its ability to respond to protection , it would seem that an effective program for manage- ment of the grazing and forest lands in Lebanon would show significant ...
... forests and pasture . Considering the productive capacity of the land and its ability to respond to protection , it would seem that an effective program for manage- ment of the grazing and forest lands in Lebanon would show significant ...
Стр. 641
... Forest Service , which is responsible for the habitat , have been mutually concerned about the future of the Clearwater elk ranges . In 1962 Dr. Lyon ( previously cited ) inaugurated research on the effects of fire and logging on ...
... Forest Service , which is responsible for the habitat , have been mutually concerned about the future of the Clearwater elk ranges . In 1962 Dr. Lyon ( previously cited ) inaugurated research on the effects of fire and logging on ...
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