摘要: 对鼠耳蝠属两种蝙蝠飞行状态下的声发射进行了比较研究。结果表明 :两种鼠耳蝠声发射信号的声谱图都呈调频 (FM)型 ,但在波形及频率范围上有明显差异。大鼠耳蝠(四川亚种 )的声脉冲宽度很小 ( 1 6± 0 3ms) ,能率环较低 ( 4 0 % ) ,其主频率 (DF =44 6± 4 3kHz)也较低 ;而水鼠耳蝠的声脉冲宽度较大 ( 4 2± 1 6ms) ,能率环 ( 9 6% )及主频率 (DF =83 0± 4 0kHz)也较高。文中结合两种蝙蝠的形态及食性分析了回声定位对捕食生境及捕食策略的适应性

摘要: 西南鼠耳蝠(Myotis altarium Thomas,1911),因峨眉山为其模式产地,又称峨眉鼠耳蝠或者四川鼠耳蝠。隶属于翼手目(Chiroptera)蝙蝠科(Vespertilionidae)鼠耳蝠属(Myotis),主要分布

摘要: From September to November 2007,we recorded and analyzed the echolocation calls of Ricketti's big-footed bat(Myotis ricketti) ,in call-recording cages using BatSound software.We also calculated measurements of wing shape for these bats. We compared the parameters of echolocation calls and wing shape between males and females.The results showed that only the interpulse interval was significantly different between males(68.49±10.99 ms) and females(83.61±13.77 ms) (t-test:t=-2.72,P<0.01) ,while the pulse duration(male:4.28±0.34 ms,female:4.64±0.97 ms) ,the dominant frequency(40.31±1.36 kHz,40.20±1.32 kHz) ,the max frequency(72.40±2.37 kHz,72.20±2.66 kHz) ,the min frequency(29.00±1.16 kHz,28.60±1.58 kHz) ,and the measurements of wing shape were not significantly different between males and females. M.ricketti had average wing loading(male:8.61±0.72 N/m2,female:8.51±0.81 N/m2) ,high aspect ratio(7.96±0.31,8.09±0.34) and high wing tip shape index(2.93±1.09,2.48±1.02) .

摘要: Although the distrib ution of Rickett’s big-footed bat (Myotis ricketti Thoma s,1894) had been widely reported from Heilongjiang to Hong Kong, no distribution in Hainan Island is reported. The authors collected 27 specimens of Rickett’s big-footed bat from Mt. Diaoluoshan and Huoshankou of Hainan I s land in 2004, showing that Rickett’s big-footed bat is widely distribute d from Heilongjiang to Hainan Island, ranging from the northernmost to the south ernmost parts in Chin a. The measurements of specimens are less than those of the specimen collected from the mainland of China, and the authors consider it may be necessary to st udy subspe cies differentiation of the Hainan Island population.

摘要: 2021年2月2日，在广东省惠州市一防空洞内使用抄网捕获1只蝙蝠。该蝙蝠体型中等，头体长53.37 mm，前臂长51.60 mm，体重12.70 g；体毛鲜艳，全身金黄色；耳狭长而窄，耳屏钝尖；耳缘、拇指、后足棕色；翼膜有橙黄色和黑色的特殊图案。脑颅较大，颅全长18.70 mm，颅高7.29 mm，额部明显隆起，后部高且呈球形，吻部宽短，泪骨有明显突起，吻部至额部较平缓。以上特征与金黄鼠耳蝠Myotis formosus的外形及头骨特征相符。基于cyt b基因序列的系统发育分析也表明，该标本与金黄鼠耳蝠聚为一支。结合形态与分子数据，确定该标本为金黄鼠耳蝠，为广东省蝙蝠分布新记录，标本现保存于广东省科学院动物研究所。