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タイトル: | Endozoochorous seed dispersal by sympatric mustelids, Martes melampus and Mustela itatsi, in western Tokyo, central Japan |
著者: | Tsuji, Yamato ![]() ![]() Tatewaki, Takafumi Kanda, Eiji |
著者名の別形: | 辻, 大和 |
キーワード: | Endozoochory Japanese marten Japanese weasel Seed dispersal |
発行日: | Sep-2011 |
出版者: | Elsevier GmbH |
誌名: | Mammalian Biology - Zeitschrift für Säugetierkunde |
巻: | 76 |
号: | 5 |
開始ページ: | 628 |
終了ページ: | 633 |
抄録: | We investigated seed dispersal by two sympatric mustelid species, the Japanese marten (Martes melampus) and Japanese weasel (Mustela itatsi), along an intercity forest path in western Tokyo, central Japan, from Jul 2007 to Jul 2008. We aimed to investigate the effect of food/habitat preference of these mustelids (martens are semi-arboreal frugivores while weasels are terrestrial carnivores) on their seed dispersal characteristics, which determine their efficacy as seed dispersers. In total, we analyzed 478 fecal samples collected from the two mustelids (Nmarten = 381, Nweasel = 97). The proportions of feces containing seeds for martens and weasels were 81.4% and 55.7%, respectively. The number of plant species whose seeds were found within the feces were 28 and 17, respectively. Almost all seeds within feces of both mustelids were intact. The number of plant species whose seeds were found within a single fecal sample ranged from one to four, but no significant difference was detected between the two mustelids. However, marten feces contained a significantly greater number of seeds of most plant species as well as total number of seeds than did weasel feces. The numbers of plant species and seeds represented in marten feces varied seasonally, but those represented in weasel feces did not. Our findings suggest the possibility that both mustelids act in some ways as seed dispersers, although martens seem to disperse a greater diversity and total amount of seeds. |
著作権等: | © 2011 Deutsche Gesellschaft für Säugetierkunde. Published by Elsevier GmbH この論文は著者最終稿です。内容が印刷版と異なることがありますので、引用の際には出版社版をご確認ご利用ください。This is the Accepted Author Manuscript. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/148237 |
DOI(出版社版): | 10.1016/j.mambio.2011.01.002 |
出現コレクション: | 学術雑誌掲載論文等 |
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