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Habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids
Numerous species have been reported to form mixed-species groups, however, little is known about the interplay between niche partitioning and mixed-species group formation. Furthermore, it is often unclear whether species come together by chance due to overlapping habitat preferences, by shared attr...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9984456/ https://www.ncbi.nlm.nih.gov/pubmed/36869065 http://dx.doi.org/10.1038/s41598-023-30694-w |
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author | Syme, Jonathan Kiszka, Jeremy J. Parra, Guido J. |
author_facet | Syme, Jonathan Kiszka, Jeremy J. Parra, Guido J. |
author_sort | Syme, Jonathan |
collection | PubMed |
description | Numerous species have been reported to form mixed-species groups, however, little is known about the interplay between niche partitioning and mixed-species group formation. Furthermore, it is often unclear whether species come together by chance due to overlapping habitat preferences, by shared attraction to resources, or by attraction between them. We assessed habitat partitioning, co-occurrence patterns, and mixed-species group formation of sympatric Australian humpback (Sousa sahulensis) and Indo-Pacific bottlenose dolphins (Tursiops aduncus) around the North West Cape, Western Australia, with a joint species distribution model and temporal analyses of sighting data. Australian humpback dolphins preferred shallower and more nearshore waters than Indo-Pacific bottlenose dolphins, yet these species co-occurred more often than expected by chance given shared responses to environmental variables. Indo-Pacific bottlenose dolphins were sighted more often than Australian humpback dolphins during the afternoon, however, we did not find any temporal patterns in the occurrence of mixed-species groups. We propose that the positive association in the species’ occurrence indicates the active formation of mixed-species groups. By evaluating habitat partitioning and co-occurrence patterns, this study provides direction for future work which should proceed to investigate the benefits that these species may gain from grouping with each other. |
format | Online Article Text |
id | pubmed-9984456 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-99844562023-03-05 Habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids Syme, Jonathan Kiszka, Jeremy J. Parra, Guido J. Sci Rep Article Numerous species have been reported to form mixed-species groups, however, little is known about the interplay between niche partitioning and mixed-species group formation. Furthermore, it is often unclear whether species come together by chance due to overlapping habitat preferences, by shared attraction to resources, or by attraction between them. We assessed habitat partitioning, co-occurrence patterns, and mixed-species group formation of sympatric Australian humpback (Sousa sahulensis) and Indo-Pacific bottlenose dolphins (Tursiops aduncus) around the North West Cape, Western Australia, with a joint species distribution model and temporal analyses of sighting data. Australian humpback dolphins preferred shallower and more nearshore waters than Indo-Pacific bottlenose dolphins, yet these species co-occurred more often than expected by chance given shared responses to environmental variables. Indo-Pacific bottlenose dolphins were sighted more often than Australian humpback dolphins during the afternoon, however, we did not find any temporal patterns in the occurrence of mixed-species groups. We propose that the positive association in the species’ occurrence indicates the active formation of mixed-species groups. By evaluating habitat partitioning and co-occurrence patterns, this study provides direction for future work which should proceed to investigate the benefits that these species may gain from grouping with each other. Nature Publishing Group UK 2023-03-03 /pmc/articles/PMC9984456/ /pubmed/36869065 http://dx.doi.org/10.1038/s41598-023-30694-w Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Syme, Jonathan Kiszka, Jeremy J. Parra, Guido J. Habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids |
title | Habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids |
title_full | Habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids |
title_fullStr | Habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids |
title_full_unstemmed | Habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids |
title_short | Habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids |
title_sort | habitat partitioning, co-occurrence patterns, and mixed-species group formation in sympatric delphinids |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9984456/ https://www.ncbi.nlm.nih.gov/pubmed/36869065 http://dx.doi.org/10.1038/s41598-023-30694-w |
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