Individual variation in the isolation calls of Mexican free-tailed bat pups ( Tadarida brasiliensis mexicana)
Near-term pregnant females and female-pup nursing pairs of Mexican free-tailed bats ( Tadarida brasiliensis mexicana) were captured from large maternity colonies in central Texas. A total of 337 isolation calls from 20 pups were recorded and nine call parameters were measured from each call either s...
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| Veröffentlicht in: | Animal behaviour 1986-08, Vol.34 (4), p.1078-1086 |
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| container_title | Animal behaviour |
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| creator | Gelfand, Deborah L. McCracken, Gary F. |
| description | Near-term pregnant females and female-pup nursing pairs of Mexican free-tailed bats (
Tadarida brasiliensis mexicana) were captured from large maternity colonies in central Texas. A total of 337 isolation calls from 20 pups were recorded and nine call parameters were measured from each call either sonagraphically or with a spectrum analyser. Univariate and multivariate analyses of the call parameters show that the calls of different pups are structurally distinct. Discriminant function analysis using a random subset of calls correctly categorized 60·4% to the pup emitting them. These results suggest that the pups have individual vocal signatures. Calls also possess qualities which suggest that they are attractive in nature and easy to locate. Regression analyses show that several call parameters increase in frequency as pups age. |
| doi_str_mv | 10.1016/S0003-3472(86)80167-1 |
| format | Article |
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| ispartof | Animal behaviour, 1986-08, Vol.34 (4), p.1078-1086 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Animal ethology Biological and medical sciences Fundamental and applied biological sciences. Psychology Mammalia Psychology. Psychoanalysis. Psychiatry Tadarida brasiliensis Vertebrata |
| title | Individual variation in the isolation calls of Mexican free-tailed bat pups ( Tadarida brasiliensis mexicana) |
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