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Disturbance and Dilemma
An Introduction to Chemical Pesticides
Dominance or Concomitance? Local Mass and Inte
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agencies agricultural aldrin amounts animals application aquatic arthropods baits biological biotic birds budworm California carnivorous cent changes chemical control chlorinated hydrocarbon concentration contamination control campaigns control programs coyotes crop damage deer density depend dieldrin Dutch elm disease ecological economic effects endrin Entomol environment eradication example exposure faunal federal field forest grazing gypsy moth hazard heptachlor herbicides herbivores important increase insect control invertebrates Japanese beetle kill kind land levels limited livestock loss mammals ment methods methoxychlor million mite mortality natural normally numbers occur orchards organisms outbreaks parasites parathion pest control pest species pesticides plant pounds per acre practices predators problems production range rangeland reduced reduction in numbers repellents reproductive residues resistance response result rodent control rodenticides secondary poisoning seed serious soil spraying stable studies sublethal success surface thallium tion tissue toxaphene toxic toxic chemicals treatment trol U.S. Fish values vector vertebrates Wildl wildlife