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Search For The Causative Organism Of Waterfowl Deaths At Lake Onalaska, Derek Skillings
Search For The Causative Organism Of Waterfowl Deaths At Lake Onalaska, Derek Skillings
Journal of Undergraduate Research at Minnesota State University, Mankato
American coots (Fulica americana) and diving ducks, including lesser scaup (Aythya affinis) and ring-necked ducks (Aythya collaris) have been dying in significant numbers on Lake Onalaska since 2001. Bird mortality is being attributed to parasitic infections from two intestinal trematodes, Cyathocotyle bushiensis and Sphaeridiotrema globulus. The birds begin dying in as little as two weeks of landing at this lake. Rapid mortality is not typically associated with trematode parasitism. Assuming these birds acquired their infections at Lake Onalaska, leads to the conclusion that our current understanding of the disease in this parasite-host system is lacking. Neorickettsiales are a group of …