Indirect effects of climate change altered the cannibalistic behaviour of shell-drilling gastropods in Antarctica during the Eocene
The fossil record from Seymour Island, Antarctic Peninsula, provides a record of biotic response to the onset of global climatic cooling during the Eocene. Using drilling traces—small, round holes preserved on prey shells—we examined the effect of a cooling pulse 41 Ma on the cannibalistic behaviour...
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crroyalsociety:10.1098/rsos.181446 2024-06-02T07:58:05+00:00 Indirect effects of climate change altered the cannibalistic behaviour of shell-drilling gastropods in Antarctica during the Eocene Dietl, Gregory P. Nagel-Myers, Judith Aronson, Richard B. National Science Foundation 2018 http://dx.doi.org/10.1098/rsos.181446 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181446 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.181446 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Royal Society Open Science volume 5, issue 10, page 181446 ISSN 2054-5703 journal-article 2018 crroyalsociety https://doi.org/10.1098/rsos.181446 2024-05-07T14:16:32Z The fossil record from Seymour Island, Antarctic Peninsula, provides a record of biotic response to the onset of global climatic cooling during the Eocene. Using drilling traces—small, round holes preserved on prey shells—we examined the effect of a cooling pulse 41 Ma on the cannibalistic behaviour of predatory naticid gastropods. We predicted that cannibalistic attacks would decline in response to the cooling climate, reflecting reduced activity levels, energy requirements and constraints on the chemically aided drilling process of the naticids. Surprisingly, however, cannibalism frequencies did not change. This counterintuitive result is best explained by a sharp reduction in durophagous (shell-crushing) predation in shallow-benthic communities in Antarctica that also occurred as the climate cooled. Reduced durophagous predation may have created a less-risky environment for foraging naticids, stimulating cannibalistic behaviour. The change in the top-down control exerted by shell-crushing predators on naticids may have counteracted the direct, negative effects of declining temperatures on the predatory performance of naticids. Our results suggest that the long-term consequences of climate change cannot be predicted solely from its direct effects on predation, because the temperature can have large indirect effects on consumer–resource interactions, especially where risk-effects dominate. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island The Royal Society Antarctic Antarctic Peninsula Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Royal Society Open Science 5 10 181446 |
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Open Polar |
collection |
The Royal Society |
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crroyalsociety |
language |
English |
description |
The fossil record from Seymour Island, Antarctic Peninsula, provides a record of biotic response to the onset of global climatic cooling during the Eocene. Using drilling traces—small, round holes preserved on prey shells—we examined the effect of a cooling pulse 41 Ma on the cannibalistic behaviour of predatory naticid gastropods. We predicted that cannibalistic attacks would decline in response to the cooling climate, reflecting reduced activity levels, energy requirements and constraints on the chemically aided drilling process of the naticids. Surprisingly, however, cannibalism frequencies did not change. This counterintuitive result is best explained by a sharp reduction in durophagous (shell-crushing) predation in shallow-benthic communities in Antarctica that also occurred as the climate cooled. Reduced durophagous predation may have created a less-risky environment for foraging naticids, stimulating cannibalistic behaviour. The change in the top-down control exerted by shell-crushing predators on naticids may have counteracted the direct, negative effects of declining temperatures on the predatory performance of naticids. Our results suggest that the long-term consequences of climate change cannot be predicted solely from its direct effects on predation, because the temperature can have large indirect effects on consumer–resource interactions, especially where risk-effects dominate. |
author2 |
National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Dietl, Gregory P. Nagel-Myers, Judith Aronson, Richard B. |
spellingShingle |
Dietl, Gregory P. Nagel-Myers, Judith Aronson, Richard B. Indirect effects of climate change altered the cannibalistic behaviour of shell-drilling gastropods in Antarctica during the Eocene |
author_facet |
Dietl, Gregory P. Nagel-Myers, Judith Aronson, Richard B. |
author_sort |
Dietl, Gregory P. |
title |
Indirect effects of climate change altered the cannibalistic behaviour of shell-drilling gastropods in Antarctica during the Eocene |
title_short |
Indirect effects of climate change altered the cannibalistic behaviour of shell-drilling gastropods in Antarctica during the Eocene |
title_full |
Indirect effects of climate change altered the cannibalistic behaviour of shell-drilling gastropods in Antarctica during the Eocene |
title_fullStr |
Indirect effects of climate change altered the cannibalistic behaviour of shell-drilling gastropods in Antarctica during the Eocene |
title_full_unstemmed |
Indirect effects of climate change altered the cannibalistic behaviour of shell-drilling gastropods in Antarctica during the Eocene |
title_sort |
indirect effects of climate change altered the cannibalistic behaviour of shell-drilling gastropods in antarctica during the eocene |
publisher |
The Royal Society |
publishDate |
2018 |
url |
http://dx.doi.org/10.1098/rsos.181446 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.181446 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.181446 |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) |
geographic |
Antarctic Antarctic Peninsula Seymour Seymour Island |
geographic_facet |
Antarctic Antarctic Peninsula Seymour Seymour Island |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island |
op_source |
Royal Society Open Science volume 5, issue 10, page 181446 ISSN 2054-5703 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsos.181446 |
container_title |
Royal Society Open Science |
container_volume |
5 |
container_issue |
10 |
container_start_page |
181446 |
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1800741349474959360 |