Survival of Brown Boobies (Sula Leucogaster) at Johnston Atoll: A Long-Term Study
نویسندگان
چکیده
منابع مشابه
Weights, hematology, and serum chemistry of free-ranging brown boobies (Sula leucogaster) in Johnston Atoll, Central Pacific.
Hematologic and serum chemistry values are reported for 105 brown boobies (Sula leucogaster) from Johnston Atoll, Central Pacific. Hematocrit, estimated total plasma solids, total and differential white cell counts, serum glucose, calcium, phosphorus, uric acid, total protein, albumin, globulin, aspartate aminotransferase, and creatinine phosphokinase were analyzed. Hematologic and serum chemis...
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We describe a new species of piroplasm from brown boobies (Sula leucogaster) on Sand Island, Johnston Atoll National Wildlife Refuge, central Pacific. Mean parasitemia in adults and chicks was less than 1%, with the parasitemia in chicks significantly greater than in adults. There was no significant relation between the age of chicks and the degree of parasitemia. Parasitized red cells and red ...
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Approximately 9.2% of avian taxa are known to hybridize, a larger proportion than most vertebrate groups. However, rates of hybridization vary widely across avian orders: ducks and geese (Anseriformes) hybridize widely and frequently, while hybridization between swift species (Apodiformes) has never been recorded (Grant & Grant 1992). Seabirds, excluding the whiteheaded gull complex (Charadriif...
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ژورنال
عنوان ژورنال: The Auk
سال: 2003
ISSN: 1938-4254,0004-8038
DOI: 10.1093/auk/120.3.811