草原须鼠耳蝠在中国西北三省区新分布  

New records of Myotis aurascens in three northwest provincial regions of China

作　　者：宋玲星 樊淬 卯明乐 欧智布 邓怀庆[3] 肖宁 周江 卢学理 SONG Lingxing;FAN Cui;MAO Mingle;OU Zhibu;DENG Huaiqing;XIAO Ning;ZHOU Ji‐ang;LU Xueli(School of Karst Science,Guizhou Normal University,Guiyang 550001,China;Forestry and Grassland Administration of Qinghai Province,Xining 810008,China;School of Life Sciences,Guizhou Normal University,Guiyang 550001,China;Guiyang Healthcare Vocational University,Guiyang 550081,China)

机构地区：[1]贵州师范大学喀斯特研究院,贵阳550001 [2]青海省林业和草原局,西宁810008 [3]贵州师范大学生命科学学院,贵阳550001 [4]贵阳康养职业技术大学,贵阳550081

出　　处：《兽类学报》2025年第2期257-264,共8页Acta Theriologica Sinica

基　　金：科技部基础资源专项(2021FY100302)。

摘　　要：鼠耳蝠属(Myotis)是翼手目(Chiroptera)蝙蝠科(Vespertilionidae)中分布最广、种类最多的一个属,据统计全球超过126种(Morales et al.,2019)。鼠耳蝠属经历了快速的物种多样化(Platt et al.,2018),长期以来存在分类学争议(Petretal.,2016)。草原须鼠耳蝠(Myotis aurascens)是从须鼠耳蝠(Myotis mystacinus)独立出来的一个种(Tsytsulina et al.,2012),其模式产地在弗拉季高加索,以往的调查显示该种分布在俄罗斯、蒙古国、韩国和黑山(Benda,2004;Tsytsulina et al.,2012;Kim et al.,2015),Benda和Paunovi?(2016)随后认为该种在从地中海东南部向东扩展到欧洲草原、高加索山脉及东亚的北部地区呈连续分布。In August 2023,40 specimens of Myotis bat(29 males and 11 females)were captured by using harp traps and mist nets in Xinjiang,Qinghai,and Ningxia provinces,northwest China.The specimens were morphologically identified as Myotis aurascens based on the short dorsal hairs,fur on back brown,belly fur dark gray at roots,and gray white at tips;head and body length(40.4±2.7)mm;forearm length(35.1±1.3)mm;ear length(13.6±1.1)mm;tragus slender and straight(6.9±0.7)mm,approximately half the length of the ear pinna;hindfoot length less than half of the tibia length;greatest length of skull(13.71±0.39)mm;condylobasal length(12.94±0.48)mm;dental formula 2.1.3.3/3.1.3.3=38 teeth.Based on phylogenetic analysis of Cyt b gene,the captured samples in this study were clustered together with Myotis aurascens from Inner Mongolia of China and Republic of Korea as one clade with posterior probability 1.00.These specimens represent the first record of Myotis aurascens to these three provinces in northwest China.This study expands the range records of this species and provides basic data for a deeper understanding of bat diversity.

关 键 词：草原须鼠耳蝠 新疆 青海 宁夏 新纪录 

分 类 号：Q958.3[生物学—动物学]