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운영자

2007-04-16 10:16:35 | Hit : 27888 | Vote : 9182

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[자료] Body size changes among otters, Lutra lutra, in Norway: the possible effects of food availability and global warming

Oecologia. 2006 Nov;150(1):155-60. Epub 2006 Jul 26.

Body size changes among otters, Lutra lutra, in Norway: the possible effects of food availability and global warming

Yom-Tov Y, Heggberget TM, Wiig O, Yom-Tov S.

Department of Zoology, Tel Aviv University, Tel Aviv, 69978, Israel. yomtov@post.tau.ac.il

Using museum data of adult specimens whose sex, age, and locality are known, we studied temporal and geographical body size trends among the otter, Lutra lutra, in Norway. We found that body size of the otters increased during the last quarter of the twentieth century, and suggest that this trend is related to increased food availability from fish farming and possibly also to energy saving due to elevated sea temperatures. Birth year and death year explained 38.8 and 43.5%, respectively, of the variation in body size. Body size of otters was positively related to latitude, thus conforming to Bergmann's rule.

PMID: 16868759 [PubMed - indexed for MEDLINE]

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=16868759&query_hl=3&itool=pubmed_docsum

Prev	[자료] Phylogenetic position of the Japanese river otter Lutra nippon inferred from the nucleotide sequence of 224 bp of the mitochondrial cytochrome b gene	운영자	2007/04/16

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