منابع مشابه
Sexual Dimorphism
S Vertebrates ” ( J. G. M. Thewissen , and S. Nummela , eds ) , pp. 211 – 224 . University of California Press , Berkeley . Pihlström , H. ( 2008 ). Comparative anatomy and physiology of chemical senses in aquatic mammals . In “ Sensory Evolution on the Threshold Adaptations in Secondarily Aquatic Vertebrates ” ( J. G. M. Thewissen , and S. Nummela , eds ) , pp. 95 – 109 . University of Califor...
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In this article, we review the effects on polar bears of global warming that have already been observed, and try to evaluate what may happen to the polar bears in the future. Many researchers have predicted a wide range of impacts of climate change on polar bear demography and conditions. A predicted major reduction in sea ice habitat will reduce the availability of ice associated seals, the ma...
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We collected 245 adipose tissue biopsies from adult polar bearsUrsus maritimus in north-eastern Manitoba during the course of long-term population studies between fall 2001 and spring 2004. In summer, the sea ice of Hudson Bay melts completely and the entire polar bear population is forced to fast on land for c. 4months. During this period, the adipose tissue of females contained significantly ...
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Agency (FSA), announced that meat and milk from cloned cows was safe to eat, a striking aspect of media activity was the contrast between fulsome reports in the ‘upmarket’ newspapers and minimal coverage in the mass circulation tabloids, some of which ignored the announcement entirely. Presumably this reflected their responses to inherently reassuring news. “Cloned meat declared safe to eat” ra...
متن کاملSexual Dimorphism of the Kidney
(6), although G the male due to The preserv linked to a d example, in th effective rena in women tha ly prominent renal transpl more than 10 ages 20 and 5 over the same ERPF (factore small group o The falls in ER should be not is calculated f tion of PAH i men (17). How women vs. m extraction (65 ed from sin SNGFR (3). In the aging renal arteriola these resistanc ly vasoconstric both sexes, the...
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ژورنال
عنوان ژورنال: Journal of Mammalogy
سال: 2005
ISSN: 0022-2372,1545-1542
DOI: 10.1644/1545-1542(2005)86[895:sdopb]2.0.co;2