Feeding Ecology of Odontaster validus under Different Environmental Conditions in the West Antarctic Peninsula
To study how Odontaster validus can influence the spatial structure of Antarctic benthic communities and how they respond to disturbance, it is necessary to assess potential dietary shifts in different habitats. We investigated the diets of O. validus from Maxwell Bay and South Bay in the West Antar...
Published in: | Biology |
---|---|
Main Authors: | , , , , , , |
Format: | Text |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2022
|
Subjects: | |
Online Access: | https://doi.org/10.3390/biology11121723 |
id |
ftmdpi:oai:mdpi.com:/2079-7737/11/12/1723/ |
---|---|
record_format |
openpolar |
spelling |
ftmdpi:oai:mdpi.com:/2079-7737/11/12/1723/ 2023-08-20T04:02:25+02:00 Feeding Ecology of Odontaster validus under Different Environmental Conditions in the West Antarctic Peninsula Lisette Zenteno-Devaud Gabriela V. Aguirre-Martinez Claudia Andrade Leyla Cárdenas Luis Miguel Pardo Humberto E. González Ignacio Garrido agris 2022-11-28 application/pdf https://doi.org/10.3390/biology11121723 EN eng Multidisciplinary Digital Publishing Institute Ecology https://dx.doi.org/10.3390/biology11121723 https://creativecommons.org/licenses/by/4.0/ Biology; Volume 11; Issue 12; Pages: 1723 trophic ecology stable isotope analysis Antarctic Peninsula sea star global warming Antarctic benthic communities Text 2022 ftmdpi https://doi.org/10.3390/biology11121723 2023-08-01T07:32:39Z To study how Odontaster validus can influence the spatial structure of Antarctic benthic communities and how they respond to disturbance, it is necessary to assess potential dietary shifts in different habitats. We investigated the diets of O. validus from Maxwell Bay and South Bay in the West Antarctic Peninsula. A multifaceted approach was applied including in situ observations of cardiac stomach everted contents, isotopic niche, and trophic diversity metrics. Results confirm the flexible foraging strategy of this species under markedly different environmental conditions, suggesting plasticity in resource use. The data also showed evidence of isotopic niche expansion, high δ15N values, and Nacella concinna as a common food item for individuals inhabiting a site with low seasonal sea ice (Ardley Cove), which could have significant ecological implications such as new trophic linkages within the Antarctic benthic community. These results highlight the importance of considering trophic changes of key species to their environment as multiple ecological factors can vary as a function of climatic conditions. Text Antarc* Antarctic Antarctic Peninsula Maxwell Bay Sea ice MDPI Open Access Publishing Antarctic Antarctic Peninsula Ardley ENVELOPE(-58.953,-58.953,-62.201,-62.201) Ardley Cove ENVELOPE(-58.953,-58.953,-62.201,-62.201) Maxwell Bay ENVELOPE(-58.859,-58.859,-62.223,-62.223) Nacella ENVELOPE(-60.783,-60.783,-62.467,-62.467) South Bay ENVELOPE(-63.579,-63.579,-64.870,-64.870) The Antarctic Biology 11 12 1723 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
trophic ecology stable isotope analysis Antarctic Peninsula sea star global warming Antarctic benthic communities |
spellingShingle |
trophic ecology stable isotope analysis Antarctic Peninsula sea star global warming Antarctic benthic communities Lisette Zenteno-Devaud Gabriela V. Aguirre-Martinez Claudia Andrade Leyla Cárdenas Luis Miguel Pardo Humberto E. González Ignacio Garrido Feeding Ecology of Odontaster validus under Different Environmental Conditions in the West Antarctic Peninsula |
topic_facet |
trophic ecology stable isotope analysis Antarctic Peninsula sea star global warming Antarctic benthic communities |
description |
To study how Odontaster validus can influence the spatial structure of Antarctic benthic communities and how they respond to disturbance, it is necessary to assess potential dietary shifts in different habitats. We investigated the diets of O. validus from Maxwell Bay and South Bay in the West Antarctic Peninsula. A multifaceted approach was applied including in situ observations of cardiac stomach everted contents, isotopic niche, and trophic diversity metrics. Results confirm the flexible foraging strategy of this species under markedly different environmental conditions, suggesting plasticity in resource use. The data also showed evidence of isotopic niche expansion, high δ15N values, and Nacella concinna as a common food item for individuals inhabiting a site with low seasonal sea ice (Ardley Cove), which could have significant ecological implications such as new trophic linkages within the Antarctic benthic community. These results highlight the importance of considering trophic changes of key species to their environment as multiple ecological factors can vary as a function of climatic conditions. |
format |
Text |
author |
Lisette Zenteno-Devaud Gabriela V. Aguirre-Martinez Claudia Andrade Leyla Cárdenas Luis Miguel Pardo Humberto E. González Ignacio Garrido |
author_facet |
Lisette Zenteno-Devaud Gabriela V. Aguirre-Martinez Claudia Andrade Leyla Cárdenas Luis Miguel Pardo Humberto E. González Ignacio Garrido |
author_sort |
Lisette Zenteno-Devaud |
title |
Feeding Ecology of Odontaster validus under Different Environmental Conditions in the West Antarctic Peninsula |
title_short |
Feeding Ecology of Odontaster validus under Different Environmental Conditions in the West Antarctic Peninsula |
title_full |
Feeding Ecology of Odontaster validus under Different Environmental Conditions in the West Antarctic Peninsula |
title_fullStr |
Feeding Ecology of Odontaster validus under Different Environmental Conditions in the West Antarctic Peninsula |
title_full_unstemmed |
Feeding Ecology of Odontaster validus under Different Environmental Conditions in the West Antarctic Peninsula |
title_sort |
feeding ecology of odontaster validus under different environmental conditions in the west antarctic peninsula |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/biology11121723 |
op_coverage |
agris |
long_lat |
ENVELOPE(-58.953,-58.953,-62.201,-62.201) ENVELOPE(-58.953,-58.953,-62.201,-62.201) ENVELOPE(-58.859,-58.859,-62.223,-62.223) ENVELOPE(-60.783,-60.783,-62.467,-62.467) ENVELOPE(-63.579,-63.579,-64.870,-64.870) |
geographic |
Antarctic Antarctic Peninsula Ardley Ardley Cove Maxwell Bay Nacella South Bay The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Ardley Ardley Cove Maxwell Bay Nacella South Bay The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Maxwell Bay Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Maxwell Bay Sea ice |
op_source |
Biology; Volume 11; Issue 12; Pages: 1723 |
op_relation |
Ecology https://dx.doi.org/10.3390/biology11121723 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/biology11121723 |
container_title |
Biology |
container_volume |
11 |
container_issue |
12 |
container_start_page |
1723 |
_version_ |
1774712853966618624 |