Environmental Impact - Wildlife/Vegetation Effects
(1971). Social wildlife investigations:
Second progress report of the Sanjoaquin River rookery study.
California Dept. Fish Game: 25pp.
Abstract
Human disturbance and adverse weather reduced nesting success of great
blue herons
on the San Joaquin Ricer in California. The presence of fishermen caused
herons to abandon nests. A case of fledgling mortality due to disturbance
by the investigators is recorded.
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