Night Roosting Behavior of the Little Brown Bat, Myotis lucifugus


Material Information

Night Roosting Behavior of the Little Brown Bat, Myotis lucifugus
Series Title:
Journal of Mammalogy
Barclay, Robert M. R.
Publication Date:


Subjects / Keywords:
Little Brown Bat ( local )
Myotis Lucifugus ( local )
Night Roosting ( local )
serial ( sobekcm )


Communal night roosting behavior of Myotis lucifugus was studied in southeastern Ontario using low light level television equipment. Adult females roosted in groups of up to 37 in five mortices in two barns. Night roosting occurred on cool nights (minimum temperature below 12°C) during May and June, a period corresponding to that of gestation. No roosting occurred on nights above 12°C. On nights between 5 and 12°C each bat used the roosts up to three times per night and marked individuals each had a consistent pattern of behavior. On colder nights (below 5°C), all bats entered the roosts early in the evening and stayed until just before dawn. At night, the night roosts were consistently warmer than ambient and day roost temperatures. Communal night roosting thus serves a thermoregulatory role for pregnant female M. lucifugus which must maintain a high body temperature to promote rapid embryo development, a vital factor in the survival of young over their first winter. Individual patterns of roosting activity and the correlation between temperature and roost use likely result from the trade off between the thermoregulatory benefits and commuting costs of night roosting.
Original Version:
Journal of Mammalogy, Vol. 63, no. 3 (1982-08-26).

Record Information

Source Institution:
University of South Florida Library
Holding Location:
University of South Florida
Rights Management:
This object is protected by copyright, and is made available here for research and educational purposes. Permission to reuse, publish, or reproduce the object beyond the bounds of Fair Use or other exemptions to copyright law must be obtained from the copyright holder.

USFLDC Membership

University of South Florida
Karst Information Portal

Postcard Information



Download Options


No images or PDF downloads are available for this resource.

Cite this item close


Cras ut cursus ante, a fringilla nunc. Mauris lorem nunc, cursus sit amet enim ac, vehicula vestibulum mi. Mauris viverra nisl vel enim faucibus porta. Praesent sit amet ornare diam, non finibus nulla.


Cras efficitur magna et sapien varius, luctus ullamcorper dolor convallis. Orci varius natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. Fusce sit amet justo ut erat laoreet congue sed a ante.


Phasellus ornare in augue eu imperdiet. Donec malesuada sapien ante, at vehicula orci tempor molestie. Proin vitae urna elit. Pellentesque vitae nisi et diam euismod malesuada aliquet non erat.


Nunc fringilla dolor ut dictum placerat. Proin ac neque rutrum, consectetur ligula id, laoreet ligula. Nulla lorem massa, consectetur vitae consequat in, lobortis at dolor. Nunc sed leo odio.