Summer foods of lesser scaup in subarctic taiga

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Twenty-five adult and 38 juvenile lesser scaup (Aythya affinis) that were collected in taiga north of Great Slave Lake, Northwest Territories, had eaten almost entirely animal material (99 i?? 1 per cent, P < 0.05). Juveniles collected in mid-summer had tended to feed on free-swimming organisms such as Chaoborinae and Conchostraca; whereas juveniles collected in late summer had tended to feed, as did adults in June, on bottom-associated organisms such as amphipods, odonates, and corixids. Sampling aquatic organisms concomitantly with collecting ducks revealed that seeds, copepods, and cladocerans were seldom or never eaten; most other organisms were consumed in proportions that were not significantly different (P < 0.05) from those in the collected samples.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Summer foods of lesser scaup in subarctic taiga
Series title Arctic
Volume 23
Issue 1
Year Published 1970
Language English
Contributing office(s) Northern Prairie Wildlife Research Center
Description 10 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Arctic
First page 35
Last page 44
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