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Frequency of mallard-black duck hybrids along the atlantic coast determined by electrophoresis and plumage analysis |
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| Authors: | Raymond P Morgan Donald W Meritt Suzanne B Block Shelley T Sulkin |
| Institution: | 2. Appalachian Environmental Laboratory, Center for Environmental and Estuarine Studies, University of Maryland, Frostburg State College Campus, Frostburg, MD 21532, U.S.A.;3. Horn Point Environmental Laboratories, Center for Environmental and Estuarine Studies, University of Maryland, Cambridge, MD 21613, U.S.A. |
| Abstract: | The frequency of mallard and black duck hybrids along the Atlantic flyway was estimated based on serum protein and serum esterase electrophoresis and plumage analysis. Hybrid frequencies for black ducks were low (below 10%) in Nova Scotia - Maine, Ontario and New Jersey and high (above 10%) in Maryland and Massachusetts. Plumage estimates tended to be higher for black ducks in Massachusetts and Maryland than estimates based on the electrophoretic work. |
| Keywords: | black duck mallard serum proteins esterases electrophoresis hybrids plumage |
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