蝙蝠研究
2004_台灣地區鼠耳蝠屬分類地位_周政翰
出版年份：2004
研究生：周政翰
分類：碩士論文
題目：台灣地區鼠耳蝠屬分類地位
Title：Taxonomic status of the genus Myotis (Chiroptera: Vespertilionidae) in Taiwan
摘要：
台灣地區現有記錄鼠耳蝠屬蝙蝠共有四種，分別為渡瀨氏鼠耳蝠（M. formosus watasei），寬吻鼠耳蝠（M. latirostris），台灣鼠耳蝠（M. taiwanensis）及在1997年所發現的新種（Myotis sp. 1）。本研究就104個標本，依頭骨、齒式及外部形態，可發現8隻標本外部形態接近渡瀨氏鼠耳蝠，但其齒式及外部毛色卻與渡瀨氏鼠耳蝠不同；68隻寬吻鼠耳蝠類群標本可分為三群，分別為寬吻鼠耳蝠，及39隻標本屬於未知的兩種鼠耳蝠（Myotis sp. 2及Myotis sp. 3）。82筆粒線體DNA色素細胞b完整序列指出（1）渡瀨氏鼠耳蝠類群可分為兩種；（2）台灣鼠耳蝠及Myotis sp. 1各為獨立的一支；（3）寬吻鼠耳蝠類群標本，可區分為三種類。故台灣地區現有鼠耳蝠屬至少應有七種，其中渡瀨氏鼠耳蝠類群之兩種蝙蝠應回歸為M. watasei及M. flavus；而台灣鼠耳蝠及寬吻鼠耳蝠仍為台灣特有種；未知種Myotis sp. 1為一獨立有效種，Myotis sp. 2應為M. mystacinus種群之物種，而Myotis sp. 3為M. frater 種群之物種。
Abstract：
Four Myotis species have been recorded in Taiwan: Watase’s bat (M. formosus watasei Kishida, 1924), Formosan broad-muzzled bat (M. latirostris Kishida, 1932), Formosan mouse-eared bat (M. taiwanensis Linde, 1908), and one new species found in 1997 (Myotis sp. 1). The purpose of this study was to reexamine the systematics and phylogeny of Myotis in Taiwan. Complete cytochrome b gene sequences (1140 bp) of 82 individuals and morphological measurements of 104 specimens were analyzed. Of the 16 M. f. watasei specimens, 8 differed in dental characters and fur color. Of the 68 specimens formerly regarded as M. latirostris, 39 were separated into unknown species based on external and cranial morphology (Myotis sp. 2 and Myotis sp. 3). Based on these results, 1) the M. formosus group was split into two species; 2) and M. taiwanensis and Myotis sp. 1 formed a distinct clade; 3) the M. latirostris group was separated into three species. Therefore, there are at least seven Myotis species found in Taiwan. Morphological and molecular data revealed the M. formosus group should be M. watasei and M. flavus; M. taiwanensis and M. latirostris were still endemic species; Myotis sp. 1 should be a new species, Myotis sp. 2 were M. mystacinus species group and Myotis sp. 3 were M. frater species group.