Survival and pre-fledging body mass in juvenile Emperor Geese

Article Abstract:

The survival of juvenile Emperor Geese between the fledging and staging areas was investigated. Emperor Goose goslings were captured at nine different sites and marked with individually coded neck collars. The banded goslings were weighed and subsequently released to enable them to rejoin their flocks. The geese were then resighted and studied after one month using high-power spotting scopes. Results indicated that heavy goslings had significantly higher survival than lighter weight goslings between late pre-fledging and arrival on fall staging areas.

Bird migration

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Leucocytozoon simondi in emperor geese from the Yukon-Kuskowkim Delta in Alaska

Article Abstract:

A study was conducted to investigate Alaska-based Emperor Geese for avian hematozoa. Blood samples were collected in 134 adults and goslings on the Yukon-Kuskokwim Delta. Elliptical micro and macrogametocytes were the predominant forms of gametocytes observed in the study. Results indicated a new host record for the parasite, Leucocytozoon simondi, which has been implicated in diseases and mortalities in juvenile birds.

Parasites, Parasitism, Gametocytes

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Infectious bursal disease virus antibodies in Eider Ducks and Herring Gulls

Article Abstract:

Research is presented concerning the occurrence of infectious bursal disease virus antibodies in the blood of female Spectacled Eider Ducks and Common Eider Ducks, and in immature Herring Gulls.

Evaluation, Physiological aspects, Diseases, Eider, Herring-gull, Herring gull, Antibodies, Infectious bursal disease virus

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