Literature DB >> 30009348

Isotopic Composition of Blood of Polar Bears (Ursus maritimus) of the Kara-Barents Sea Population.

E A Ivanov1, I N Mordvintsev1, N G Platonov1, S V Naidenko1, A V Tiunov1, V V Rozhnov2.   

Abstract

The data on the content of carbon and nitrogen isotopes in the blood samples of polar bears obtained in the present study confirm that polar bears in the Taimyr region (and the Kara-Barents sea population in general) are partly dependent on the resources of terrestrial origin. However the "terrestrial carbon" evidently reaches bears' tissues indirectly, via marine food webs utilizing organic carbon brought into the polar basin by Siberian rivers.

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Year:  2018        PMID: 30009348     DOI: 10.1134/S0012496618030055

Source DB:  PubMed          Journal:  Dokl Biol Sci        ISSN: 0012-4966


  3 in total

1.  Mercury concentrations in Southern Beaufort Sea polar bears: variation based on stable isotopes of carbon and nitrogen.

Authors:  Tamara Cardona-Marek; Katrina K Knott; Benjamin E Meyer; Todd M O'Hara
Journal:  Environ Toxicol Chem       Date:  2009-02-18       Impact factor: 3.742

2.  What to eat now? Shifts in polar bear diet during the ice-free season in western Hudson Bay.

Authors:  Linda J Gormezano; Robert F Rockwell
Journal:  Ecol Evol       Date:  2013-08-28       Impact factor: 2.912

3.  Geographical Area and Life History Traits Influence Diet in an Arctic Marine Predator.

Authors:  Sabrina Tartu; Sophie Bourgeon; Jon Aars; Magnus Andersen; Dorothee Ehrich; Gregory W Thiemann; Jeffrey M Welker; Heli Routti
Journal:  PLoS One       Date:  2016-05-19       Impact factor: 3.240

  3 in total

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