Is climate change causing the increasing narwhal (Monodon monoceros) catches in Smith Sound, Greenland?
نویسندگان
چکیده
منابع مشابه
Extreme physiological adaptations as predictors of climatechange sensitivity in the narwhal, Monodon monoceros
Rapid changes in sea ice cover associated with global warming are poised to have marked impacts on polarmarinemammals.Here we examine skeletalmuscle characteristics supporting swimming and diving in one polar species, the narwhal, and use these attributes to further document this cetacean’s vulnerability to unpredictable sea ice conditions and changing ecosystems. We found that extreme morpholo...
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Greenland Institute of Natural Resources, Bok 570, 3900 Nuuk, Greenland (MPH, KLL, RGH) RUWPA, University of St Andrews, The Observatory, Buchanan Gardens KY16 9LZ, United Kingdom (MLB, DLB, TAM) Polar Science Center, Applied Physics Laboratory, University of Washington, 1013 NE 40th Street, Seattle, WA 98105, USA (KLL) Húsavik Research Center, University of Iceland, Hafnarstétt 3, 640 Húsavik,...
متن کاملAspartic acid racemization rate in narwhal (Monodon monoceros) eye lens nuclei estimated by counting of growth layers in tusks
Aspartic acid racemization rate in narwhal (Monodon monoceros) eye lens nuclei estimated by counting of growth layers in tusks Eva Garde, Mads Peter Heide-Jørgensen, Susanne Ditlevsen & Steen H. Hansen 1 Center for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5 7, DK-1350 Copenhagen Ø, Denmark 2 Greenland Institute of Natural Resources, PO Box 570, DK...
متن کاملWinter Feeding Intensity of Narwhals (monodon Monoceros)
Stomach contents from 121 narwhals (Monondon monoceros) harvested in the eastern Canadian High Arctic and West Greenland were used to quantify seasonal changes in feeding activity and prey selection. Stomachs collected from summer harvests were mostly empty with little evidence of recent feeding. Stomachs collected in late fall and winter harvests had considerable amounts of undigested material...
متن کاملParadoxical escape responses by narwhals (Monodon monoceros).
Until recent declines in Arctic sea ice levels, narwhals (Monodon monoceros) have lived in relative isolation from human perturbation and sustained predation pressures. The resulting naïvety has made this cryptic, deep-diving cetacean highly susceptible to disturbance, although quantifiable effects have been lacking. We deployed a submersible, animal-borne electrocardiograph-accelerometer-depth...
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ژورنال
عنوان ژورنال: Polar Research
سال: 2009
ISSN: 0800-0395,1751-8369
DOI: 10.3402/polar.v28i2.6115