Fecal DNA typing to determine the fine scale population structure and sex-biased dispersal pattern of Eurasian otter (Lutra lutra) in Kinmen
Date Issued
2005
Date
2005
Author(s)
Huang, Chuan-Chin
DOI
zh-TW
Abstract
We use noninvasive molecular methods to investigate the fine scale population structure and to trace the movement pattern of Eurasian otter (Lutra Lutra) in Kinmen. We collected 513 fresh spraints of otters from 15 sites in April and August 2003, and February 2004. DNA was extracted from these spraints and genotyped by 15 microsatellite markers and SRY gene. Sixty-three individuals, including 36 males and 27 females were identified based on the results of genotyping. These otters could be divided into 4 subpopulations on a fine scale basis. We used a genetic distance matrix to analyze the degree of genetic differentiation between these subpopulations and found that female otters show a higher differential tendency. Furthermore, we found only 6 of 63 individuals moved between different subpopulation. Of which, five were males. Therefore, we concluded that the otter population in Kinmen shows sex-biased dispersal pattern.
Subjects
水獺
微衛星體基因座
性別偏差播遷
Lutra lutra
Otter
Microsatellite
Sex-biased dispersal
Type
other
File(s)![Thumbnail Image]()
Loading...
Name
ntu-94-R91225023-1.pdf
Size
23.31 KB
Format
Adobe PDF
Checksum
(MD5):85d9db213353c8684dacdd8ad0593111