Extinction: The Causes and Consequences of the Disappearance of SpeciesBallantine Books, 1983 - 384 sidor |
Innehåll
Should We Mourn the Dinosaurs? | 3 |
Why save endangered species? There have always been | 15 |
Evolution Geographic variation Geographic speciation | 32 |
Upphovsrätt | |
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Extinction: The Causes and Consequences of the Disappearance of Species Paul R. Ehrlich,Anne H. Ehrlich Fragmentarisk förhandsgranskning - 1983 |
Extinction: The Causes and Consequences of the Disappearance of Species Paul R. Ehrlich,Anne H. Ehrlich Fragmentarisk förhandsgranskning - 1981 |
Vanliga ord och fraser
African agriculture AMAX American animals areas beauty biological biologists birds breeding butterfly captive Cervidae Checkerspot chemical chimps climate condor conservation countries Crested Butte crops dinosaurs diversity E. O. Wilson Earth ecological economic Ecoscience ecosystem services elephants endangered species energy environment environmental evolution evolved example exterminated extinction fauna fishes flora forest Galápagos genetic gorillas grazing herbivores Homo sapiens human population hunters hunting impact important increase insects Inupiat islands IUCN killed land Lepidoptera less living loss Lycaenidae mammals million National Park natural ecosystems Norman Myers Nymphalidae organisms ORVs P. R. Ehrlich penguins percent pesticides plant species Poaceae poisons pollution populations and species potential predators pressure problem programs protect reef relatively reserves Rhino rich Science Snail Darter snakes soil speciation survival Tellico dam threatened trees tropical moist forests tropical rainforests United whales wild wildlife zoos