Northern Prairie Wildlife Research Center
= 50.1%). Tubers and shoots of fennelleaf pondweed (Potamogeton pectinatus)
and midge larvae (Chironomidae) were the predominant foods, comprising on average
45% and 23% of the diet volume, respectively. Continued importance of plant
foods to canvasbacks throughout reproduction contrasts with the mostly invertebrate
diets of other prairie-breeding ducks, and does not fit current theories of
nutritional ecology of breeding anatids (i.e., females meet the protein requirements
of reproduction by consuming a high proportion of animal foods).
Austin, Jane E., Jerome R. Serie, and James H. Noyes. 1990. Diet of
canvasbacks during breeding. Prairie Naturalist 22(3):171-176.
This resource should be cited as:
Austin, Jane E., Jerome R. Serie, and James H. Noyes. 1990. Diet of
canvasbacks during breeding. Prairie Naturalist 22(3):171-176.
Jamestown, ND: Northern Prairie Wildlife Research Center Online.
http://www.npwrc.usgs.gov/resource/birds/canvdiet/canvdiet.htm
(Version 30SEP2002).
¹ Present address: U.S. Fish and Wildlife Service, Patuxent
Wildlife Research Center, Laurel, MD 20708
² Present address: Oregon Department of Fish and Wildlife, Forest
and Range Science Laboratory, La Grande, OR 98750
Installation: Extract all files and open canvdiet.htm in a web browser.canvdiet.zip ( 22K) -- Diet of Canvasbacks During Breeding
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.npwrc.usgs.gov/resource/birds/canvdiet/index.htm
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