关键词: 翼手目, 回声定位声波, 东方蝙蝠, 吉林省, 新纪录

Abstract: Eleven bats were collected from the eaves and walls in Sheling town in Changchun City of Jilin Province. Based
on the characteristics of morphology,skull,teeth and baculum,the species was identified as Vespertilio sinensis and it was first recorded in Jilin Province. Although widely distributed in the provinces around Jilin Province,the north of Korea and Far East of Russia,the echolocation calls of this species has rarely been examined. In this study,we recorded the echolocation calls of this species while the bats flew out from the eaves. The calls during flight were short,broadband,steep FM signals,with the energy concentrated in the first harmonic. The starting,peak and ending frequencies were 83.66 ±2.08 kHz,34.54 ± 0.88 kHz and 24.78 ± 0.41 kHz,respectively. The duration was 2.63 ±0.27 ms,and bandwidth was 58.84 ±2.10 kHz. The echolocation calls of this species in Jilin were significantly different from those of the same species in Hokkaido, Japan,which produced long,gentle FM / QCF signals. The reason for the difference was probably due to geographical segregation of populations.

Key words: Chiroptera, Echolocation calls, Jilin Province, New record, Vespertilio sinensis