Conserving Life on Earth |
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Page 39
... population increase are not so simple or direct as the mere taking and ... density , ecosystems are in turmoil throughout Central America ; as yet ... density of population is no more important than other parameters , such as the rate of ...
... population increase are not so simple or direct as the mere taking and ... density , ecosystems are in turmoil throughout Central America ; as yet ... density of population is no more important than other parameters , such as the rate of ...
Page 193
... population density of prey species ; in fact they seem to have little effect at all other than to check gross overpopulation ( the converse is not always true ; predator population size is closely con- trolled by the availability of ...
... population density of prey species ; in fact they seem to have little effect at all other than to check gross overpopulation ( the converse is not always true ; predator population size is closely con- trolled by the availability of ...
Page 297
... populations , considerable genetic variability is main- tained and genetic ... population to its former habitat unless that habitat has been placed under ... density and has a relatively minor impact on its tions and their particular ...
... populations , considerable genetic variability is main- tained and genetic ... population to its former habitat unless that habitat has been placed under ... density and has a relatively minor impact on its tions and their particular ...
Contents
Introduction | 3 |
Ecology and ManMade Change | 24 |
Pollution Industrial Accidents and Species Manipulations | 80 |
Copyright | |
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acres agricultural alligator American animals and plants Archie Carr areas artificial reef biological biologist birds blue whale breeding Camp Smith canal cause century chemical climate climax community complex conservation conservationists crop damage danger destruction detergent diversity earth ecological ecologists economic ecosystems effects eggs endangered environment environmental eutrophication Everglades example existing extinction farms fauna fish flood Florida gene Green Revolution green turtles habitat human hunting important increase Indian industry insecticides insects ivory-bill ivory-billed woodpecker killed kind Lake land landscape major mammals marsh miles National Park native natural communities nesting Oklawaha Oklawaha River orangutan organisms percent pest poisons pollution population population density predators preserve problem production protection redwood reef region River Science scientists soil species square miles survival tion Torrey Canyon trees United variety waste wild animals wildlife York zoos