Foraging strategies in the greater horseshoe bat(Rhinolophus ferrumequinum)on Lepidoptera in summer  

作　　者：JIN Longru FENG Jiang SUN Keping LIU Ying WU Lei LI Zhenxin ZHANG Xichen 

机构地区：[1]Department of Environmental Science and Engineering, Northeast Normal University, Changchun 130024, China

出　　处：《Chinese Science Bulletin》2005年第14期1477-1482,共6页

基　　金：supported by the National Natural Science Foundation of China(Grant No.30370261);Key Project of Education Department(Grant No.104257);Outstanding Youth Foundation of Jilin Province(Grant No.20030114).

摘　　要：The diet of the bat Rhinolophus ferrumequinum was studied at the Zhi’an Village of Ji’an City in China, from June to August 2004. The bats were trained in a laboratory (volume: 9×4×4 m3). Foraging strategies of the bat were ob- served at night and prey remains were collected and identi- fied. The results showed that the diet consisted mainly of Lepidoptera in summer, including 11 families, more than 30 species of moths, such as Noctuidae (36.6% by number), Sphingidae (24.1%), Geometridae (13.4%) and Limacodidae (9.5%). The length of culled wings ranged from 10―40 mm (97.7%). Pearson correlation analysis showed that the bat R. ferrumequinum foraged their prey selectively, but not op- portunistically. From field studies, two ways were observed in which the bats retrieved their prey including aerial hawk- ing during peak active period of the insects and flycatching during the insects’ non-peak activity period. The bats never gleaned prey from the ground, though they appeared to be well able to detect fluttering moths on the ground.Abstract The diet of the bat Rhinolophus ferrumequinum was studied at the Zhi＇an Village of Ji＇an City in China, from June to August 2004. The bats were trained in a laboratory （volume： 9×4×4 m^3）. Foraging strategies of the bat were observed at night and prey remains were collected and identified. The results showed that the diet consisted mainly of Lepidoptera in summer, including 11 families, more than 30 species of moths, such as Noctuidae （36.6% by number）,Sphingidae （24.1%）, Geometridae （13.4%） and Limacodidae （9.5%）. The length of culled wings ranged from 10--40 mm （97.7%）. Pearson correlation analysis showed that the bat R.ferrumequinum foraged their prey selectively, but not opportunistically. From field studies, two ways were observed in which the bats retrieved their prey including aerial hawking during peak active period of the insects and flycatching during the insects＇ non-peak activity period. The bats never gleaned prey from the ground, though they appeared to be well able to detect fluttering moths on the ground.

关 键 词：草料策略 鳞翅类 昆虫 生活习性 

分 类 号：Q969.42[生物学—昆虫学]