Readings in Wildlife ConservationJames Allen Bailey, William Elder, Ted D. McKinney Wildlife Society, 1974 - Всего страниц: 722 |
Результаты поиска по книге
Результаты 1 – 3 из 65
Стр. 33
... exist in an area . In eastern North America , the crow and the pileated woodpecker are examples of birds that ... exist , say , in tropical rain forests as compared with the relatively small number that exist in the simpler ( hence fewer ...
... exist in an area . In eastern North America , the crow and the pileated woodpecker are examples of birds that ... exist , say , in tropical rain forests as compared with the relatively small number that exist in the simpler ( hence fewer ...
Стр. 490
... exist , seems to be supported by the available evidence . The assumption , however , that suitable species can be found to fill these niches finds less support . Most exotic big game introductions have been only partial successes , and ...
... exist , seems to be supported by the available evidence . The assumption , however , that suitable species can be found to fill these niches finds less support . Most exotic big game introductions have been only partial successes , and ...
Стр. 695
... exists in this phenomenon that some- thing approaching a summer or fall threshold level exists , and varying numbers ... exist under heavy hunting pressure without obvious effects on their density . Yet Wagner et al . ( 1965 ) and Wagner ...
... exists in this phenomenon that some- thing approaching a summer or fall threshold level exists , and varying numbers ... exist under heavy hunting pressure without obvious effects on their density . Yet Wagner et al . ( 1965 ) and Wagner ...
Содержание
PERSPECTIVES | 1 |
Thinking like a mountain | 9 |
Lost margins in the abandoned farm | 19 |
Авторские права | |
Не показаны другие разделы: 33
Другие издания - Просмотреть все
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