Faecal DNA typing to determine the abundance and spatial organisation of otters (Lutra lutra) along two stream systems in Kinmen

Chih Ming Hung, Shou-Hsien Li, Ling Ling Lee

研究成果: 雜誌貢獻文章

59 引文 (Scopus)

摘要

In this study, non-invasive molecular methods were used to investigate the abundance and spatial organisation of otters (Lutra lutra) in Kinmen. DNA samples were extracted from fresh spraints collected seasonally along two streams from February to November 2001 and genotyped using a panel of 7 microsatellites and the SRY gene. Out of 343 spraints, 222 were successfully genotyped and 38 different genotypes (19 females and 19 males) were identified. Thirteen of these were residents that were identified in more than one season and 25 were floaters that were only identified in a single season. The average number of otters per km found along the two streams (1.5-1.8 for all otters, or 0.8-1.1 for residents only) was higher than that estimated in other studies. Female residents lived in exclusive group ranges and the ranges of male residents overlapped with no more than one group range of female residents. Otters appearing in the same range tended to be more closely related to each other. This study demonstrates that non-invasive molecular methods can be used to reveal a more comprehensive estimation of size and structure in an otter population.

原文英語
頁(從 - 到)301-311
頁數11
期刊Animal Conservation
7
發行號3
DOIs
出版狀態已發佈 - 2004 八月 1

指紋

DNA
genotype
gene
method

ASJC Scopus subject areas

  • Ecology
  • Nature and Landscape Conservation

引用此文

Faecal DNA typing to determine the abundance and spatial organisation of otters (Lutra lutra) along two stream systems in Kinmen. / Hung, Chih Ming; Li, Shou-Hsien; Lee, Ling Ling.

於: Animal Conservation, 卷 7, 編號 3, 01.08.2004, p. 301-311.

研究成果: 雜誌貢獻文章

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abstract = "In this study, non-invasive molecular methods were used to investigate the abundance and spatial organisation of otters (Lutra lutra) in Kinmen. DNA samples were extracted from fresh spraints collected seasonally along two streams from February to November 2001 and genotyped using a panel of 7 microsatellites and the SRY gene. Out of 343 spraints, 222 were successfully genotyped and 38 different genotypes (19 females and 19 males) were identified. Thirteen of these were residents that were identified in more than one season and 25 were floaters that were only identified in a single season. The average number of otters per km found along the two streams (1.5-1.8 for all otters, or 0.8-1.1 for residents only) was higher than that estimated in other studies. Female residents lived in exclusive group ranges and the ranges of male residents overlapped with no more than one group range of female residents. Otters appearing in the same range tended to be more closely related to each other. This study demonstrates that non-invasive molecular methods can be used to reveal a more comprehensive estimation of size and structure in an otter population.",
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