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Spatial distribution and ecological niches of non-breeding planktivorous petrels
According to niche theory, mechanisms exist that allow co-existence of organisms that would otherwise compete for the same prey and other resources. How seabirds cope with potential competition during the non-breeding period is poorly documented, particularly for small species. Here we investigate f...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4499811/ https://www.ncbi.nlm.nih.gov/pubmed/26165162 http://dx.doi.org/10.1038/srep12164 |
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author | Navarro, Joan Cardador, Laura Brown, Ruth Phillips, Richard A. |
author_facet | Navarro, Joan Cardador, Laura Brown, Ruth Phillips, Richard A. |
author_sort | Navarro, Joan |
collection | PubMed |
description | According to niche theory, mechanisms exist that allow co-existence of organisms that would otherwise compete for the same prey and other resources. How seabirds cope with potential competition during the non-breeding period is poorly documented, particularly for small species. Here we investigate for the first time the potential role of spatial, environmental (habitat) and trophic (isotopic) segregation as niche-partitioning mechanisms during the non-breeding season for four species of highly abundant, zooplanktivorous seabird that breed sympatrically in the Southern Ocean. Spatial segregation was found to be the main partitioning mechanism; even for the two sibling species of diving petrel, which spent the non-breeding period in overlapping areas, there was evidence from distribution and stable isotope ratios for differences in habitat use and diving depth. |
format | Online Article Text |
id | pubmed-4499811 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-44998112015-07-17 Spatial distribution and ecological niches of non-breeding planktivorous petrels Navarro, Joan Cardador, Laura Brown, Ruth Phillips, Richard A. Sci Rep Article According to niche theory, mechanisms exist that allow co-existence of organisms that would otherwise compete for the same prey and other resources. How seabirds cope with potential competition during the non-breeding period is poorly documented, particularly for small species. Here we investigate for the first time the potential role of spatial, environmental (habitat) and trophic (isotopic) segregation as niche-partitioning mechanisms during the non-breeding season for four species of highly abundant, zooplanktivorous seabird that breed sympatrically in the Southern Ocean. Spatial segregation was found to be the main partitioning mechanism; even for the two sibling species of diving petrel, which spent the non-breeding period in overlapping areas, there was evidence from distribution and stable isotope ratios for differences in habitat use and diving depth. Nature Publishing Group 2015-07-13 /pmc/articles/PMC4499811/ /pubmed/26165162 http://dx.doi.org/10.1038/srep12164 Text en Copyright © 2015, Macmillan Publishers Limited http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Navarro, Joan Cardador, Laura Brown, Ruth Phillips, Richard A. Spatial distribution and ecological niches of non-breeding planktivorous petrels |
title | Spatial distribution and ecological niches of non-breeding planktivorous petrels |
title_full | Spatial distribution and ecological niches of non-breeding planktivorous petrels |
title_fullStr | Spatial distribution and ecological niches of non-breeding planktivorous petrels |
title_full_unstemmed | Spatial distribution and ecological niches of non-breeding planktivorous petrels |
title_short | Spatial distribution and ecological niches of non-breeding planktivorous petrels |
title_sort | spatial distribution and ecological niches of non-breeding planktivorous petrels |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4499811/ https://www.ncbi.nlm.nih.gov/pubmed/26165162 http://dx.doi.org/10.1038/srep12164 |
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