Leech (Hirudinea) infestations among waterfowl near Yellowknife, Northwest Territories

Canadian Field-Naturalist
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Fourteen species of aquatic birds, including 11 species of ducks, were infested with leeches Theromyzon rude and Placobdella ornata near Yellowknife, Northwest Territories. Leeches infested 88% of 41 American Wigeon (Anas americana) and 31% of 86 Lesser Scaup (Aythya affinis) examined after death. Lesser Scaup captured by drive-trapping contained significantly more leeches than undisturbed ducks. Leeches were attached to the host within the mucosa of the nasal chamber, to the conjunctiva of the eye and on the skin of the body. Although only two deaths of ducklings were directly attributed to leech infestations, other birds probably died as a result of parasitism by leeches.

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Publication type Article
Publication Subtype Journal Article
Title Leech (Hirudinea) infestations among waterfowl near Yellowknife, Northwest Territories
Series title Canadian Field-Naturalist
Volume 89
Issue 3
Year Published 1975
Language English
Publisher Ottawa Field-Naturalists' Club
Contributing office(s) Northern Prairie Wildlife Research Center
Description 10 p.
First page 234
Last page 243
Country Canada
State Northwest Territories
City Yellowknife
Other Geospatial Great Slave Lake
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