TITLE

FISHING FOR DINNER

PUB. DATE
February 2008
SOURCE
National Wildlife (World Edition);Feb/Mar2008, Vol. 46 Issue 2, p10
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
The article discusses the food behavior of polar bears in the Arctic. Polar bears mainly subsist on a diet of seals, which they catch on sea ice. Global warming is causing the ice to shrink forcing the bears to seek food elsewhere. A study published in the journal "Polar Biology" reports that Canadian researchers have seen an adolescent male polar bear swimming in an Arctic estuary, chasing down and eating char. The researchers' sighting is the first such sighting of this behavior outside of the Arctic's native Inuit population.
ACCESSION #
28747223

 

Related Articles

  • Hibernation and seasonal fasting in bears: the energetic costs and consequences for polar bears. ROBBINS, CHARLES T.; LOPEZ-ALFARO, CLAUDIA; RODE, KARYN D.; TØIEN, ØIVIND; NELSON, O. LYNNE // Journal of Mammalogy;Dec2012, Vol. 93 Issue 6, p1493 

    Global warming has the potential to reduce arctic sea ice and thereby increase the length of summer-fall fasting when polar bears (Ursus maritimus) lose access to most marine mammals. To evaluate the consequences of such changes, we compared the cost of fasting by polar bears with hibernation by...

  • Does global warming threaten the dynamics of Arctic charr in Lake Geneva? Gerdeaux, Daniel // Hydrobiologia;Feb2011, Vol. 660 Issue 1, p69 

    In France, the Arctic charr ( Salvelinus alpinus) is native in only two lakes (Lakes Bourget and Geneva), in the most southerly part of its distribution area. It is a profundal morph living at depths of between 30 and 100 m in Lake Geneva. Following considerable stocking of Lake Geneva with...

  • Antarctic Sea Ice at Record High; Scientists Perplexed.  // New American (08856540);11/3/2014, Vol. 30 Issue 21, p8 

    The article presents information on a report released by the National Snow & Ice Data Center (NSIDC) on October 7, 2014, according to which sea ice in Antarctica was at record high daily levels during 2014, and scientists are confused about how this is happening despite global warming.

  • Going the Distance. Boyles, Andy // Highlights;Feb2016, Vol. 71 Issue 2, p26 

    The article focuses on the attempt by scientist Anthony Pagano to record the motions of polar bears, which have been declared as threatened due to the shrinking ice pack on the Arctic Ocean caused by the Earth's warming climate.

  • Niche segregation between Arctic char (Salvelinus alpinus) and brown trout (Salmo trutta): an experimental study of mechanisms. Jansen, Peder A.; Slettvold, Henning; Finstad, Anders G.; Langeland, Arnfinn // Canadian Journal of Fisheries & Aquatic Sciences;Jan2002, Vol. 59 Issue 1, p6 

    Studies the foraging performance in juvenile Arctic char and brown trout preying on small pelagic Daphnia longispina O.F.M. and large benthic Gammarus lacustris G.O. Sars and relates such performance to interactive versus selective segregation. Prey and predator behavior; Solitary foraging fish...

  • Discrete prey availability promotes foraging segregation and early divergence in Arctic charr, Salvelinus alpinus. Garduño-Paz, Mónica V.; Adams, Colin E. // Hydrobiologia;Aug2010, Vol. 650 Issue 1, p15 

    Many animal species show individual foraging specialisms when potential prey requires prey-specific foraging strategies. Arctic charr are often found as benthic (macroinvertebrate) or pelagic (plankton) foraging specialists. Here, we tested specifically if given a choice of prey with different...

  • Mechanisms Determining the Variability of Arctic Sea Ice Conditions and Export. Köberle, Cornelia; Gerdes, Rüdiger // Journal of Climate;Sep2003, Vol. 16 Issue 17, p2843 

    In an ocean–sea ice model of the Arctic and the northern North Atlantic driven with 50-yr NCEP–NCAR reanalysis data, no appreciable trend in sea ice volume is found for the period 1948–98. However, rather long subperiods, for example, 1965–95, exhibit a large decline...

  • Polar meltdown fulfills worst predictions. MacKenzie, Debora // New Scientist;8/12/95, Vol. 147 Issue 1990, p4 

    Reports the melting of sea ice in the Arctic and Antarctic region. Study by scientists; Details.

  • The icehouse effect. Pearce, Fred // New Scientist;6/1/2002, Vol. 174 Issue 2345, p6 

    Focuses on the effects of global warming in Antarctica. Growth of sea ice; Causes of ice construction; Division of the Antarctic peninsula.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics