首页 | 本学科首页   官方微博 | 高级检索  
     


Temporal and spatial differences in the emission of calls by pipistrelle batsPipistrellus pipistrellus andP. pygmaeus
Authors:Nick C. Downs  Paul A. Racey
Affiliation:(1) School of Biological Sciences, The University of Aberdeen, Aberdeen, AB24 2TZ, UK
Abstract:The number of orientation, feeding and social calls emitted by pipistrelle batsPipistrellus pipistrellus Schreber, 1774 andP. pygmaeus Leach, 1825 was recorded throughout the night at eight different sites. Social calls were unaffected by weather variables, whereas orientation calls and feeding buzzes were both significantly affected by cloud and temperature conditions. The number of emissions of each call type was significantly different between sites, indicating that the bats used different sites for different activities. Significant positive correlations between all three combinations of call types occurred only during the middle of the night, corresponding with the nadir of flying insects. This suggests that bats were engaged in activities other than feeding at this time, such as territory protection or mate attraction.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号