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Assessing nutrient reserves and local population dynamics of wintering lesser scaup in east-central Florida / Garth Herring

By: Material type: TextTextSeries: Thesis ; (M.Sc.)Publication details: Raleigh, NC : North Carolina State University, 2003Description: ix, 80 p. : ill. ; 28 cmAbstract: The current decline of the continental population of scaup coincides with a decline in body condition of birds arriving on the breeding grounds. The Spring Condition Hypothesis is one of the leading explanations for the current decline, and states that lesser scaup are arriving in poor body condition on the breeding grounds, which has the potential to impair their reproductive capabilities. However, it is not known if this decline in body condition is related to habitat on the wintering or staging areas along the flyways, or a combination of both.I examined changes in body condition (fresh body mass, corrected body mass, lipids, protein, mineral reserves) between mid and late winter on the most significant wintering grounds for scaup o the Atlantic Flyway;the Indian River lagoon System during the winters of 2002 - 2003...

The current decline of the continental population of scaup coincides with a decline in body condition of birds arriving on the breeding grounds. The Spring Condition Hypothesis is one of the leading explanations for the current decline, and states that lesser scaup are arriving in poor body condition on the breeding grounds, which has the potential to impair their reproductive capabilities. However, it is not known if this decline in body condition is related to habitat on the wintering or staging areas along the flyways, or a combination of both.I examined changes in body condition (fresh body mass, corrected body mass, lipids, protein, mineral reserves) between mid and late winter on the most significant wintering grounds for scaup o the Atlantic Flyway;the Indian River lagoon System during the winters of 2002 - 2003...

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