Document Detail

Water availability and successful lactation by bats as related to climate change in arid regions of western North America.
MedLine Citation:
PMID:  18684132     Owner:  NLM     Status:  MEDLINE    
1. Climate change in North America is happening at an accelerated rate, reducing availability of water resources for bats and other wildlife that require it for successful reproduction. 2. We test the water-needy lactation hypotheses directly by tracking the drinking habitats of individual lactating and non-reproductive female fringed myotis at an artificial water source located near a maternity roost. 3. We used a submerged passive integrative transponder (PIT) tag reader system designed to track fish to instead record numbers of water source visitations by tagged bats. 4. Of 24 PIT-tagged adult females, 16 (67%) were detected repeatedly by the plate antenna as they passed to drink between 18 July and 28 August 2006. 5. The total number of drinking passes by lactating females (n = 255) were significantly higher than those of non-reproductive adult females (n = 22). Overall, lactating females visited 13 times more often to drink water than did non-reproductive females. On average, lactating females visited six times more often per night. Drinking bouts occurred most frequently just after evening emergence and at dawn. 6. Drinking patterns of non-reproductive females correlated significantly with fluctuating ambient temperature and relative humidity recorded at the water source, whereas lactating females drank extensively regardless of ambient conditions. 7. We provide a mathematical model to predict the rate of decline in bat populations in the arid West in relation to climate change models for the region.
Rick A Adams; Mark A Hayes
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-08-04
Journal Detail:
Title:  The Journal of animal ecology     Volume:  77     ISSN:  1365-2656     ISO Abbreviation:  J Anim Ecol     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2009-01-23     Completed Date:  2009-03-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376574     Medline TA:  J Anim Ecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  1115-21     Citation Subset:  IM    
School of Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA.
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MeSH Terms
Chiroptera / physiology*
Greenhouse Effect*
Lactation / physiology*
North America
Reg. No./Substance:

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