Geographic variation in the matching between call characteristics and tympanic sensitivity in the Weeping lizard
Abstract Effective communication requires a match among signal characteristics, environmental conditions, and receptor tuning and decoding. The degree of matching, however, can vary, among others due to different selective pressures affecting the communication components. For evolutionary novelties,...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-12-01
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| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.8469 |
| _version_ | 1818369507546103808 |
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| author | Antonieta Labra Claudio Reyes‐Olivares Felipe N. Moreno‐Gómez Nelson A. Velásquez Mario Penna Paul H. Delano Peter M. Narins |
| author_facet | Antonieta Labra Claudio Reyes‐Olivares Felipe N. Moreno‐Gómez Nelson A. Velásquez Mario Penna Paul H. Delano Peter M. Narins |
| author_sort | Antonieta Labra |
| collection | DOAJ |
| description | Abstract Effective communication requires a match among signal characteristics, environmental conditions, and receptor tuning and decoding. The degree of matching, however, can vary, among others due to different selective pressures affecting the communication components. For evolutionary novelties, strong selective pressures are likely to act upon the signal and receptor to promote a tight match among them. We test this prediction by exploring the coupling between the acoustic signals and auditory sensitivity in Liolaemus chiliensis, the Weeping lizard, the only one of more than 285 Liolaemus species that vocalizes. Individuals emit distress calls that convey information of predation risk to conspecifics, which may respond with antipredator behaviors upon hearing calls. Specifically, we explored the match between spectral characteristics of the distress calls and the tympanic sensitivities of two populations separated by more than 700 km, for which previous data suggested variation in their distress calls. We found that populations differed in signal and receptor characteristics and that this signal variation was explained by population differences in body size. No precise match occurred between the communication components studied, and populations differed in the degree of such correspondence. We suggest that this difference in matching between populations relates to evolutionary processes affecting the Weeping lizard distress calls. |
| first_indexed | 2024-12-13T23:24:57Z |
| format | Article |
| id | doaj.art-4b0fada4697b4faaad7bb1fb891c17e2 |
| institution | Directory Open Access Journal |
| issn | 2045-7758 |
| language | English |
| last_indexed | 2024-12-13T23:24:57Z |
| publishDate | 2021-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj.art-4b0fada4697b4faaad7bb1fb891c17e22022-12-21T23:27:35ZengWileyEcology and Evolution2045-77582021-12-011124186331865010.1002/ece3.8469Geographic variation in the matching between call characteristics and tympanic sensitivity in the Weeping lizardAntonieta Labra0Claudio Reyes‐Olivares1Felipe N. Moreno‐Gómez2Nelson A. Velásquez3Mario Penna4Paul H. Delano5Peter M. Narins6Department of Biosciences Centre for Ecological and Evolutionary Synthesis (CEES) University of Oslo Oslo NorwayPrograma de Fisiología y Biofísica Instituto de Ciencias Biomédicas Facultad de Medicina Universidad de Chile Santiago de Chile ChileDepartamento de Biología y Química Facultad de Ciencias Básicas Universidad Católica del Maule Talca ChileDepartamento de Biología y Química Facultad de Ciencias Básicas Universidad Católica del Maule Talca ChilePrograma de Fisiología y Biofísica Instituto de Ciencias Biomédicas Facultad de Medicina Universidad de Chile Santiago de Chile ChileDepartamento de Neurociencia Facultad de Medicina Universidad de Chile Santiago ChileDepartment of Integrative Biology & Physiology University of California Los Angeles Los Angeles California USAAbstract Effective communication requires a match among signal characteristics, environmental conditions, and receptor tuning and decoding. The degree of matching, however, can vary, among others due to different selective pressures affecting the communication components. For evolutionary novelties, strong selective pressures are likely to act upon the signal and receptor to promote a tight match among them. We test this prediction by exploring the coupling between the acoustic signals and auditory sensitivity in Liolaemus chiliensis, the Weeping lizard, the only one of more than 285 Liolaemus species that vocalizes. Individuals emit distress calls that convey information of predation risk to conspecifics, which may respond with antipredator behaviors upon hearing calls. Specifically, we explored the match between spectral characteristics of the distress calls and the tympanic sensitivities of two populations separated by more than 700 km, for which previous data suggested variation in their distress calls. We found that populations differed in signal and receptor characteristics and that this signal variation was explained by population differences in body size. No precise match occurred between the communication components studied, and populations differed in the degree of such correspondence. We suggest that this difference in matching between populations relates to evolutionary processes affecting the Weeping lizard distress calls.https://doi.org/10.1002/ece3.8469eardrumlaser Doppler vibrometryLiolaemus chiliensisperipheral auditory sensitivitytympanic membraneultrasound |
| spellingShingle | Antonieta Labra Claudio Reyes‐Olivares Felipe N. Moreno‐Gómez Nelson A. Velásquez Mario Penna Paul H. Delano Peter M. Narins Geographic variation in the matching between call characteristics and tympanic sensitivity in the Weeping lizard Ecology and Evolution eardrum laser Doppler vibrometry Liolaemus chiliensis peripheral auditory sensitivity tympanic membrane ultrasound |
| title | Geographic variation in the matching between call characteristics and tympanic sensitivity in the Weeping lizard |
| title_full | Geographic variation in the matching between call characteristics and tympanic sensitivity in the Weeping lizard |
| title_fullStr | Geographic variation in the matching between call characteristics and tympanic sensitivity in the Weeping lizard |
| title_full_unstemmed | Geographic variation in the matching between call characteristics and tympanic sensitivity in the Weeping lizard |
| title_short | Geographic variation in the matching between call characteristics and tympanic sensitivity in the Weeping lizard |
| title_sort | geographic variation in the matching between call characteristics and tympanic sensitivity in the weeping lizard |
| topic | eardrum laser Doppler vibrometry Liolaemus chiliensis peripheral auditory sensitivity tympanic membrane ultrasound |
| url | https://doi.org/10.1002/ece3.8469 |
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