Environmental Impact - Wildlife/Vegetation Effects
DesGranges, J. L. & Reed, A. (1981). Disturbance
and control of selected colonies of double-crested cormorants in Quebec.
Colonial Water birds 4: 12-19.
Abstract
Double-crested cormorants nesting in mixed colonies with gulls in the
St. Lawrence estuary were subjected to various disturbances. Visits to
colonies by investigators resulted in significant losses of eggs and young
to gull predation. Nests near the colony peripheries and those containing
no hatched young suffered the greatest losses.
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