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Intra-individual variation in the vocalized frequency of the Taiwanese leaf-nosed bat, Hipposideros terasensis, influenced by conspecific colony members
- Source :
- Journal of Comparative Physiology A. 192:807-815
- Publication Year :
- 2006
- Publisher :
- Springer Science and Business Media LLC, 2006.
-
Abstract
- We examined the intra-individual variation in resting frequency of the constant-frequency component of the second harmonic of the pulse (F rest) over 4 years in a laboratory colony of the Taiwanese leaf-nosed bat (Hipposideros terasensis). Patterns of change in F rest were observed when individuals were added to or removed from the colony so that we investigated whether F rest was affected by neighboring colony members. F rest of each bat continually showed a long-term gradual change throughout the year, and all bats in the colony increased or decreased their F rest in the same direction as a group non-seasonally. The greatest short-term changes were observed when new bats with a relatively low F rest joined the colony and F rest of new bats converged with those of the original colony members around 8 –16 days after their introduction. Conversely, a single individual showed sudden short-term decrease in F rest after its isolation from other colony members. These findings strongly indicate that F rest is flexible according to the presence of neighboring conspecific bats. We suggest that the audio-vocal feedback for conspecific pulses appears to be involved in the short- or long-term intra-individual variation in F rest other than factors previously thought such as age or season.
- Subjects :
- Behavior, Animal
Physiology
Ecology
Zoology
Human echolocation
Hipposideros terasensis
Biology
Intra individual
Adaptation, Physiological
Behavioral Neuroscience
Social Isolation
Chiroptera
Echolocation
Flight, Animal
Animals
Telemetry
Interpersonal Relations
Animal Science and Zoology
Vocalization, Animal
Ecology, Evolution, Behavior and Systematics
Rest (music)
Subjects
Details
- ISSN :
- 14321351 and 03407594
- Volume :
- 192
- Database :
- OpenAIRE
- Journal :
- Journal of Comparative Physiology A
- Accession number :
- edsair.doi.dedup.....65c9ae0c38e8ebd785a548eaf6b72528