Bald Eagle Predation on Inland Double-Crested Cormorant
نویسندگان
چکیده
منابع مشابه
Fish Losses to Double-Crested Cormorant Predation in Eastern Lake Ontario, 1992–97
We examined 4,848 regurgitated digestive pellets of double-crested cormorants (Phalacrocorax auritus) over a 6-year period (1992–97) to estimate annual predation on sport and other fishes in the eastern basin of Lake Ontario. We found more than 51,000 fish of 28 species. Using a model that incorporates annual colony nest counts; fledgling production rates; adult, immature, and young-of-year res...
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The diet-tissue discrimination factor is the amount by which a consumer's tissue varies isotopically from its diet, and is therefore a key element in models that use stable isotopes to estimate diet composition. In this study we measured discrimination factors in blood (whole blood, red blood cells and plasma), liver, muscle and feathers of Double-crested Cormorants (Phalacrocorax auritus) for ...
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Estimating the catfish aquaculture production losses that can be attributed to double-crested cormorants (Phalacrocorax auritus) has proved problematic because knowledge of the distribution of cormorants on catfish aquaculture is lacking. We evaluated use versus availability of various production pond types and landscape-scale factors affecting the distribution of cormorants on channel catfish ...
متن کاملConstructing Bald Eagle Nests With Natural Materials
Southwest Plains (JSDA Forest Service Research Note RM-RN-535 May 1995 Rocky Mountain Forest and Range Experiment Station Constructing Bald Eagle Nests With Natural Materials Teryl G. Grubb1 A technique for using natural materials to build artificial nests for bald eagles (Haliaeetus leucocephalus) and other raptors is detailed. Properly constructed nests are as permanently secured to the nest ...
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ژورنال
عنوان ژورنال: Blue Jay
سال: 1992
ISSN: 2562-5667,0006-5099
DOI: 10.29173/bluejay5222