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'Compromise' in Echolocation Calls between Different Colonies of the Intermediate Leaf-Nosed Bat (Hipposideros larvatus).

Chen Y, Liu Q, Su Q, Sun Y, Peng X, He X, Zhang L - PLoS ONE (2016)

Bottom Line: Each animal population has its own acoustic signature which facilitates identification, communication and reproduction.The sonar signals of bats can convey social information, such as species identity and contextual information.The goal of this study was to determine whether bats adjust their echolocation call structures to mutually recognize and communicate when they encounter the bats from different colonies.

View Article: PubMed Central - PubMed

Affiliation: Guangdong Entomological Institute, Guangzhou, China.

ABSTRACT
Each animal population has its own acoustic signature which facilitates identification, communication and reproduction. The sonar signals of bats can convey social information, such as species identity and contextual information. The goal of this study was to determine whether bats adjust their echolocation call structures to mutually recognize and communicate when they encounter the bats from different colonies. We used the intermediate leaf-nosed bats (Hipposideros larvatus) as a case study to investigate the variations of echolocation calls when bats from one colony were introduced singly into the home cage of a new colony or two bats from different colonies were cohabitated together for one month. Our experiments showed that the single bat individual altered its peak frequency of echolocation calls to approach the call of new colony members and two bats from different colonies adjusted their call frequencies toward each other to a similar frequency after being chronically cohabitated. These results indicate that the 'compromise' in echolocation calls might be used to ensure effective mutual communication among bats.

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The variation of peak frequency of colony B bats when they were transferred singly into colony A (mean ± SD, n = 6).The asterisks indicate significant differences (medians and 95% credible intervals, Bonferoni correction).
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pone.0151382.g002: The variation of peak frequency of colony B bats when they were transferred singly into colony A (mean ± SD, n = 6).The asterisks indicate significant differences (medians and 95% credible intervals, Bonferoni correction).

Mentions: In experiment 1, each of the individual bats from colony B that initially emitted echolocation calls with a lower peak frequency relative to colony A bats significantly increased its peak frequency after being transplanted into colony A for one month (n = 6, p < 0.001, Bonferoni corrected). However, the peak frequency decreased significantly after separation for one month (n = 6, p < 0.001, Bonferoni corrected), and the separated value did not show any difference from the initial value (Fig 2, Table A in S1 File). Additionally, the peak frequency of colony A remained stable across the entire experiment (all p-values > 0.05, Table B in S1 File).


'Compromise' in Echolocation Calls between Different Colonies of the Intermediate Leaf-Nosed Bat (Hipposideros larvatus).

Chen Y, Liu Q, Su Q, Sun Y, Peng X, He X, Zhang L - PLoS ONE (2016)

The variation of peak frequency of colony B bats when they were transferred singly into colony A (mean ± SD, n = 6).The asterisks indicate significant differences (medians and 95% credible intervals, Bonferoni correction).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4814132&req=5

pone.0151382.g002: The variation of peak frequency of colony B bats when they were transferred singly into colony A (mean ± SD, n = 6).The asterisks indicate significant differences (medians and 95% credible intervals, Bonferoni correction).
Mentions: In experiment 1, each of the individual bats from colony B that initially emitted echolocation calls with a lower peak frequency relative to colony A bats significantly increased its peak frequency after being transplanted into colony A for one month (n = 6, p < 0.001, Bonferoni corrected). However, the peak frequency decreased significantly after separation for one month (n = 6, p < 0.001, Bonferoni corrected), and the separated value did not show any difference from the initial value (Fig 2, Table A in S1 File). Additionally, the peak frequency of colony A remained stable across the entire experiment (all p-values > 0.05, Table B in S1 File).

Bottom Line: Each animal population has its own acoustic signature which facilitates identification, communication and reproduction.The sonar signals of bats can convey social information, such as species identity and contextual information.The goal of this study was to determine whether bats adjust their echolocation call structures to mutually recognize and communicate when they encounter the bats from different colonies.

View Article: PubMed Central - PubMed

Affiliation: Guangdong Entomological Institute, Guangzhou, China.

ABSTRACT
Each animal population has its own acoustic signature which facilitates identification, communication and reproduction. The sonar signals of bats can convey social information, such as species identity and contextual information. The goal of this study was to determine whether bats adjust their echolocation call structures to mutually recognize and communicate when they encounter the bats from different colonies. We used the intermediate leaf-nosed bats (Hipposideros larvatus) as a case study to investigate the variations of echolocation calls when bats from one colony were introduced singly into the home cage of a new colony or two bats from different colonies were cohabitated together for one month. Our experiments showed that the single bat individual altered its peak frequency of echolocation calls to approach the call of new colony members and two bats from different colonies adjusted their call frequencies toward each other to a similar frequency after being chronically cohabitated. These results indicate that the 'compromise' in echolocation calls might be used to ensure effective mutual communication among bats.

Show MeSH
Related in: MedlinePlus