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An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes
Although the cichlids of Lake Malawi are an important model system for the study of sensory evolution and sexual selection, the evolutionary processes linking these two phenomena remain unclear. Prior works have proposed that evolutionary divergence is driven by sensory drive, particularly as it app...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Hindawi Publishing Corporation
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3388434/ https://www.ncbi.nlm.nih.gov/pubmed/22779029 http://dx.doi.org/10.1155/2012/647420 |
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author | Smith, Adam R. van Staaden, Moira J. Carleton, Karen L. |
author_facet | Smith, Adam R. van Staaden, Moira J. Carleton, Karen L. |
author_sort | Smith, Adam R. |
collection | PubMed |
description | Although the cichlids of Lake Malawi are an important model system for the study of sensory evolution and sexual selection, the evolutionary processes linking these two phenomena remain unclear. Prior works have proposed that evolutionary divergence is driven by sensory drive, particularly as it applies to the visual system. While evidence suggests that sensory drive has played a role in the speciation of Lake Victoria cichlids, the findings from several lines of research on cichlids of Lake Malawi are not consistent with the primary tenets of this hypothesis. More specifically, three observations make the sensory drive model implausible in Malawi: (i) a lack of environmental constraint due to a broad and intense ambient light spectrum in species rich littoral habitats, (ii) pronounced variation in receiver sensory characteristics, and (iii) pronounced variability in male courtship signal characteristics. In the following work, we synthesize the results from recent studies to draw attention to the importance of sensory variation in cichlid evolution and speciation, and we suggest possible avenues of future research. |
format | Online Article Text |
id | pubmed-3388434 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Hindawi Publishing Corporation |
record_format | MEDLINE/PubMed |
spelling | pubmed-33884342012-07-09 An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes Smith, Adam R. van Staaden, Moira J. Carleton, Karen L. Int J Evol Biol Review Article Although the cichlids of Lake Malawi are an important model system for the study of sensory evolution and sexual selection, the evolutionary processes linking these two phenomena remain unclear. Prior works have proposed that evolutionary divergence is driven by sensory drive, particularly as it applies to the visual system. While evidence suggests that sensory drive has played a role in the speciation of Lake Victoria cichlids, the findings from several lines of research on cichlids of Lake Malawi are not consistent with the primary tenets of this hypothesis. More specifically, three observations make the sensory drive model implausible in Malawi: (i) a lack of environmental constraint due to a broad and intense ambient light spectrum in species rich littoral habitats, (ii) pronounced variation in receiver sensory characteristics, and (iii) pronounced variability in male courtship signal characteristics. In the following work, we synthesize the results from recent studies to draw attention to the importance of sensory variation in cichlid evolution and speciation, and we suggest possible avenues of future research. Hindawi Publishing Corporation 2012 2012-06-21 /pmc/articles/PMC3388434/ /pubmed/22779029 http://dx.doi.org/10.1155/2012/647420 Text en Copyright © 2012 Adam R. Smith et al. https://creativecommons.org/licenses/by/3.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Review Article Smith, Adam R. van Staaden, Moira J. Carleton, Karen L. An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes |
title | An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes |
title_full | An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes |
title_fullStr | An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes |
title_full_unstemmed | An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes |
title_short | An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes |
title_sort | evaluation of the role of sensory drive in the evolution of lake malawi cichlid fishes |
topic | Review Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3388434/ https://www.ncbi.nlm.nih.gov/pubmed/22779029 http://dx.doi.org/10.1155/2012/647420 |
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