Migration chronology of Eastern-Population Tundra Swans
نویسندگان
چکیده
منابع مشابه
Demographic outcomes of diverse migration strategies assessed in a metapopulation of tundra swans
BACKGROUND Migration is a prominent aspect of the life history of many avian species, but the demographic consequences of variable migration strategies have only infrequently been investigated, and rarely when using modern technological and analytical methods for assessing survival, movement patterns, and long-term productivity in the context of life history theory. We monitored the fates of 50...
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-Tundra Swans (Cygnus columbianus columbianus) fitted with satellite transmitters (PTTs) on the outer coast of the Yukon-Kuskokwim (Y-K) Delta, Alaska, migrated eastward across the Y-K Delta in late September and stopped at wetlands on the west side of the Alaska Range during early October. After crossing the Alaska Range, swans stopped briefly on the Susitna Flats of Upper Cook Inlet. They the...
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Evaluating the potential involvement of wild avifauna in the emergence of highly pathogenic avian influenza H5N1 (hereafter H5N1) requires detailed analyses of temporal and spatial relationships between wild bird movements and disease emergence. The death of wild swans (Cygnus spp.) has been the first indicator of the presence of H5N1 in various Asian and European countries; however their role ...
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Tundra swans (Cygnus columbianus) are broadly distributed in North America, use a wide variety of habitats, and exhibit diverse migration strategies. We investigated patterns of hematozoa infection in three populations of tundra swans that breed in Alaska using satellite tracking to infer host movement and molecular techniques to assess the prevalence and genetic diversity of parasites. We eval...
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We tested whether Tundra Swans use information on the spatial distribution of cryptic food items (below ground Sago pondweed tubers) to shape their movement paths. In a continuous environment, swans create their own food patches by digging craters, which they exploit in several feeding bouts. Series of short (<1 m) intra-patch movements alternate with longer inter-patch movements (>1 m). Tuber ...
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ژورنال
عنوان ژورنال: Canadian Journal of Zoology
سال: 2003
ISSN: 0008-4301,1480-3283
DOI: 10.1139/z03-063