Skip to Main Content
Temperatures below leaf litter during winter prescribed burns: implications for litter-roosting batsAuthor(s): Roger W. Perry; Virginia L. McDaniel
Source: International Journal of Wildland Fire 24(4)
Publication Series: Scientific Journal (JRNL)
Station: Southern Research Station
View PDF (353.35 KB)
Related Research Highlights
Burning the Leafy Blanket: Winter Prescribed Fire and Litter Roosting Bats
DescriptionSome bat species, including eastern red bats (Lasiurus borealis), roost for short periods beneath leaf litter on the forest floor during winter in the south-eastern USA, a region subjected to frequent fire. The variability in fuel consumption, the heterogeneous nature of burns, and the effects of litter and duff moisture on forest-floor temperatures during winter burning could influence potential survival for bats beneath the leaf litter if they are unable to escape on-coming flames. We measured temperatures below leaf litter in 64 south-slope plots during nine controlled burns in the Ouachita Mountains of Arkansas to determine the probability of survival. Maximum temperature recorded under leaf litter at each plot averaged 292ºC(±20 s.e.) and ranged from 10 to 717ºC. Only three (5%) of the plots experienced temperatures that were deemed survivable (<60ºC sustained for 60 s) during burns on warmer winter days (air temperatures 15.0–26.1ºC). Temperatures below the leaf litter measured just before the arrival of fire (average=19.6ºC) suggested that if bats were roosting in plots they would have been in shallow torpor, which would have enabled faster escape from approaching flames. Burning during the warmer periods of winter (e.g. ≥15ºC) and during afternoons could potentially improve survival by bats roosting under leaf litter by reducing arousal and escape times.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationPerry, Roger W.; McDaniel, Virginia L. 2015. Temperatures below leaf litter during winter prescribed burns: implications for litter-roosting bats. International Journal of Wildland Fire. 24(4): 544-549.
KeywordsArkansas, fire, hibernation, Lasiurus borealis, Ouachita Mountains, red bat
- Potential energy expenditure by litter-roosting bats associated with temperature under leaf litter during winter
- Fidelity of bats to forest sites revealed from mist-netting recaptures
- Resource utilization by foraging eastern red bats (Lasiurus borealis) in the Ozark Region of Missouri
XML: View XML