Cargando…
Testing the Low-density Hypothesis for Reversed Sex Change in Polygynous Fish: Experiments in Labroides dimidiatus
Hermaphroditism is ubiquitous among plants and widespread in the animal kingdom. It is an unsolved problem why reversed sex change has evolved in polygynous and protogynous reef fish. We have previously suggested that facultative monogamy occurs in low-density populations of polygynous species and t...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3952142/ https://www.ncbi.nlm.nih.gov/pubmed/24621782 http://dx.doi.org/10.1038/srep04369 |
_version_ | 1782307174064586752 |
---|---|
author | Kuwamura, Tetsuo Kadota, Tatsuru Suzuki, Shohei |
author_facet | Kuwamura, Tetsuo Kadota, Tatsuru Suzuki, Shohei |
author_sort | Kuwamura, Tetsuo |
collection | PubMed |
description | Hermaphroditism is ubiquitous among plants and widespread in the animal kingdom. It is an unsolved problem why reversed sex change has evolved in polygynous and protogynous reef fish. We have previously suggested that facultative monogamy occurs in low-density populations of polygynous species and that males that become single as a result of accidental mate loss may change sex when they meet larger males. In this study, to test this ‘low-density hypothesis', we conducted field experiments with the coral reef fish Labroides dimidiatus in which a portion of females were removed to create a low-density situation. The ‘widowed' males moved to search for a new mate when no male, female or juvenile fish migrated into their territories and paired with nearby single fish, whether male or female. Alternatively, males expanded their territories to take over the nearest pair whose male was much smaller. These results support our low-density hypothesis. |
format | Online Article Text |
id | pubmed-3952142 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-39521422014-03-19 Testing the Low-density Hypothesis for Reversed Sex Change in Polygynous Fish: Experiments in Labroides dimidiatus Kuwamura, Tetsuo Kadota, Tatsuru Suzuki, Shohei Sci Rep Article Hermaphroditism is ubiquitous among plants and widespread in the animal kingdom. It is an unsolved problem why reversed sex change has evolved in polygynous and protogynous reef fish. We have previously suggested that facultative monogamy occurs in low-density populations of polygynous species and that males that become single as a result of accidental mate loss may change sex when they meet larger males. In this study, to test this ‘low-density hypothesis', we conducted field experiments with the coral reef fish Labroides dimidiatus in which a portion of females were removed to create a low-density situation. The ‘widowed' males moved to search for a new mate when no male, female or juvenile fish migrated into their territories and paired with nearby single fish, whether male or female. Alternatively, males expanded their territories to take over the nearest pair whose male was much smaller. These results support our low-density hypothesis. Nature Publishing Group 2014-03-13 /pmc/articles/PMC3952142/ /pubmed/24621782 http://dx.doi.org/10.1038/srep04369 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/3.0/ This work is licensed under a Creative Commons Attribution 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Article Kuwamura, Tetsuo Kadota, Tatsuru Suzuki, Shohei Testing the Low-density Hypothesis for Reversed Sex Change in Polygynous Fish: Experiments in Labroides dimidiatus |
title | Testing the Low-density Hypothesis for Reversed Sex Change in Polygynous Fish: Experiments in Labroides dimidiatus |
title_full | Testing the Low-density Hypothesis for Reversed Sex Change in Polygynous Fish: Experiments in Labroides dimidiatus |
title_fullStr | Testing the Low-density Hypothesis for Reversed Sex Change in Polygynous Fish: Experiments in Labroides dimidiatus |
title_full_unstemmed | Testing the Low-density Hypothesis for Reversed Sex Change in Polygynous Fish: Experiments in Labroides dimidiatus |
title_short | Testing the Low-density Hypothesis for Reversed Sex Change in Polygynous Fish: Experiments in Labroides dimidiatus |
title_sort | testing the low-density hypothesis for reversed sex change in polygynous fish: experiments in labroides dimidiatus |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3952142/ https://www.ncbi.nlm.nih.gov/pubmed/24621782 http://dx.doi.org/10.1038/srep04369 |
work_keys_str_mv | AT kuwamuratetsuo testingthelowdensityhypothesisforreversedsexchangeinpolygynousfishexperimentsinlabroidesdimidiatus AT kadotatatsuru testingthelowdensityhypothesisforreversedsexchangeinpolygynousfishexperimentsinlabroidesdimidiatus AT suzukishohei testingthelowdensityhypothesisforreversedsexchangeinpolygynousfishexperimentsinlabroidesdimidiatus |