Arid
DOI10.1007/s00442-011-1995-z
Does interspecific competition drive patterns of habitat use in desert bat communities?
Razgour, Orly1; Korine, Carmi1,2; Saltz, David1
通讯作者Korine, Carmi
来源期刊OECOLOGIA
ISSN0029-8549
出版年2011
卷号167期号:2页码:493-502
英文摘要

Bodies of water are a key foraging habitat for insectivorous bats. Since water is a scarce and limiting resource in arid environments, bodies of open water may have a structuring effect on desert bat communities, resulting in temporal or spatial partitioning of bat activity. Using acoustic monitoring, we studied the spatial and temporal activity patterns of insectivorous bats over desert ponds, and hypothesised that sympatric bat species partition the foraging space above ponds based on interspecific competitive interactions. We used indirect measures of competition (niche overlap and competition coefficients from the regression method) and tested for differences in pond habitat selection and peak activity time over ponds. We examined the effect of changes in the activity of bat species on their potential competitors. We found that interspecific competition affects bat community structure and activity patterns. Competing species partitioned their use of ponds spatially, whereby each species was associated with different pond size and hydroperiod (the number of months a pond holds water) categories, as well as temporally, whereby their activity peaked at different hours of the night. The drying out of temporary ponds increased temporal partitioning over permanent ponds. Differences in the activity of species over ponds in response to the presence or absence of their competitors lend further support to the role of interspecific competition in structuring desert bat communities. We suggest that habitat use and night activity pattern of insectivorous bats in arid environments reflect the trade-offs between selection of preferred pond type or activity time and constraints posed by competitive interactions.


英文关键词Resource partitioning Competitive interactions Chiroptera Arid environments Acoustic monitoring
类型Article
语种英语
国家Israel
收录类别SCI-E
WOS记录号WOS:000295984500018
WOS关键词PIPISTRELLUS-PIPISTRELLUS ; VESPERTILIONID BATS ; INSECTIVOROUS BATS ; SPECIES-DIVERSITY ; NEGEV DESERT ; SELECTION ; CHIROPTERA ; MYOTIS ; FOOD ; ENVIRONMENTS
WOS类目Ecology
WOS研究方向Environmental Sciences & Ecology
来源机构Ben-Gurion University of the Negev
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/169822
作者单位1.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Mitrani Dept Desert Ecol, IL-84990 Midreshet Ben Gurion, Israel;
2.Tamar Reg Council, Dead Sea & Arava Sci Ctr, IL-86910 Neveh Zohar, Israel
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Razgour, Orly,Korine, Carmi,Saltz, David. Does interspecific competition drive patterns of habitat use in desert bat communities?[J]. Ben-Gurion University of the Negev,2011,167(2):493-502.
APA Razgour, Orly,Korine, Carmi,&Saltz, David.(2011).Does interspecific competition drive patterns of habitat use in desert bat communities?.OECOLOGIA,167(2),493-502.
MLA Razgour, Orly,et al."Does interspecific competition drive patterns of habitat use in desert bat communities?".OECOLOGIA 167.2(2011):493-502.
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