The effect of cave microclimate on winter roosting behaviour in the bat, Miniopterus schreibersii blepotis

Citation

Material Information

Title:
The effect of cave microclimate on winter roosting behaviour in the bat, Miniopterus schreibersii blepotis
Series Title:
Australian Journal of Ecology
Creator:
Hall, Leslie S.
Publisher:
Wiley Online Library
Publication Date:
Language:
English

Subjects

Subjects / Keywords:
Cave ( local )
Cave Microclimate ( local )
Winter Roosting Behaviour ( local )
Bat ( local )
Minopterus Schreibersii Blepotis ( local )
Genre:
serial ( sobekcm )

Notes

Abstract:
The microclimate at Thermocline Cave (lat, 30° 45′S, long, 149° 43′E) was investigated by measuring air temperature and relative humidity at five stations on 18 occasions from September 1971 to December, 1973. The activity, body weight and roosting sites of the bat Miniopterus schreibersii blepotis in the cave were recorded on each visit. Relative humidity in the cave was generally high and paralleled temperature. The cave exhibited a range of temperatures from 9 to 19.5°C but bats selected roosting sites only in a part of this range. During the autumn when the bats arrived and were feeding, their body weights were low, and they roosted in a domed area at the rear of the cave with a temperature of 19.5°C. As they became less active and body weight increased they moved to cooler parts (9.5‐11°C) towards the front of the cave and underwent periods of torpor, in one case lasting for at least 12 days. From July to September body weight decreased. The bats became more active in September and most had left the cave by October. It appears that M.s. blepotis can detect temperature differences of 1°C. They used this ability to select cold areas with stable high humidity in Thermocline Cave to under go periods of winter torpor.
Original Version:
Australian Journal of Ecology, Vol. 7, no. 2 (1982-06-01).

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.

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