Changes In Population Size of Bats At A Hibernaculum In Alberta, Canada, In Relation to Cave Disturbance And Access Restrictions

Olson et al assess the changes in the number of bats hibernating in Cadomin Cave. They considered census results from winter 1983-1984 to winter 2008-2009. They chose this period because survey units were formalized and the technique, coverage, and principle surveyor were consistent. The eight surve...

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Bibliographic Details
Published inNorthwestern naturalist (Olympia, Wash.) Vol. 92; no. 3; pp. 224 - 230
Main Authors Olson, Cory R., Hobson, David P., Pybus, Margo J.
Format Journal Article
LanguageEnglish
Published Department of Psychology, Indiana University, Bloomington, Indiana 47405 Society for Northwestern Vertebrate Biology 01.12.2011
Subjects
Alberta
Animal populations
Bats
Cadomin
cave
Caves
census
Census data
Censuses
Climate models
disturbance
GENERAL NOTES
Halls
hibernaculum
Hibernation
Microclimates
Myotis
population change
Population growth
Rocky Mountains
Temperature
Alberta Canada
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Summary:Olson et al assess the changes in the number of bats hibernating in Cadomin Cave. They considered census results from winter 1983-1984 to winter 2008-2009. They chose this period because survey units were formalized and the technique, coverage, and principle surveyor were consistent. The eight survey units included in analyses were presumed to provide an index of most bats occupying the cave. They used least-squares regression to analyze changes within groups over time, with year (at the start of winter) as the independent variable and census count as the dependent variable.
ISSN:1051-1733
1938-5315
DOI:10.1898/1051-1733-92.3.224