Ocean Acidification and Predator-Prey Relations: Correlating Disruption of Predator Avoidance with Chemosensory Deficits
One of the most destructive effects of global climate change is the increased carbon sequestering and consequential acidification of our world’s oceans. The impacts of ocean acidification on marine organisms are still relatively unknown, especially effects on behavioral ecology. Avoiding predation h...
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ftchapmanuniv:oai:digitalcommons.chapman.edu:cusrd_abstracts-1191 2023-06-11T04:15:35+02:00 Ocean Acidification and Predator-Prey Relations: Correlating Disruption of Predator Avoidance with Chemosensory Deficits Sidun, Alexandra FW Wright, William G. 2016-05-11T07:00:00Z application/pdf https://digitalcommons.chapman.edu/cusrd_abstracts/190 https://digitalcommons.chapman.edu/context/cusrd_abstracts/article/1191/viewcontent/BIOL491Poster_FINAL.pdf unknown Chapman University Digital Commons https://digitalcommons.chapman.edu/cusrd_abstracts/190 https://digitalcommons.chapman.edu/context/cusrd_abstracts/article/1191/viewcontent/BIOL491Poster_FINAL.pdf Student Scholar Symposium Abstracts and Posters ocean acidification pH marine biology behavior hermit crab pagurus samuelis predator prey chemosensory disruption deficit intertidal organism ecology ecosystem global climate change environmental science consumption feeding assay Integrative Biology Laboratory and Basic Science Research Marine Biology Other Ecology and Evolutionary Biology Other Life Sciences Systems Biology text 2016 ftchapmanuniv 2023-05-06T22:34:18Z One of the most destructive effects of global climate change is the increased carbon sequestering and consequential acidification of our world’s oceans. The impacts of ocean acidification on marine organisms are still relatively unknown, especially effects on behavioral ecology. Avoiding predation has emerged from recent behavioral ecology literature as a critical feature in the life history of a wide array of animal species; experiments on marine fishes suggest acidic water compromises their predator-avoidance abilities. Recent assays in our lab suggest predator-induced behavior is reduced by weakly acidic water. These experiments do not address the potential factor of generalized malaise caused by acidic water. To test this malaise hypothesis, I examined whether predator-induced reduction in feeding, previously documented by the Wright lab, is eliminated by acidic water using the following treatments: ambient artificial seawater (ASW) acidic ASW ambient predator-scented ASW acidic predator-scented ASW The malaise hypothesis predicts predator odor in acidic water would decrease feeding furthermore because the acidic water would sicken the subject. By contrast, if acidic water has a more subtle effect on hermit crab’s ability to detect its predator, the hermit crabs’ feeding in the presence of acidified water and predator odor should increase feeding rates to be comparable to ambient predator-free water. Preliminary experiments confirm slightly acidic water compromises predator detection, resulting in significantly more food consumption; these results discredit the generalized malaise hypothesis. This trend indicates global climate change could have significant and previously unanticipated impacts on predator-prey relations in marine communities. Text Ocean acidification Chapman University Digital Commons |
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Chapman University Digital Commons |
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topic |
ocean acidification pH marine biology behavior hermit crab pagurus samuelis predator prey chemosensory disruption deficit intertidal organism ecology ecosystem global climate change environmental science consumption feeding assay Integrative Biology Laboratory and Basic Science Research Marine Biology Other Ecology and Evolutionary Biology Other Life Sciences Systems Biology |
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ocean acidification pH marine biology behavior hermit crab pagurus samuelis predator prey chemosensory disruption deficit intertidal organism ecology ecosystem global climate change environmental science consumption feeding assay Integrative Biology Laboratory and Basic Science Research Marine Biology Other Ecology and Evolutionary Biology Other Life Sciences Systems Biology Sidun, Alexandra FW Wright, William G. Ocean Acidification and Predator-Prey Relations: Correlating Disruption of Predator Avoidance with Chemosensory Deficits |
topic_facet |
ocean acidification pH marine biology behavior hermit crab pagurus samuelis predator prey chemosensory disruption deficit intertidal organism ecology ecosystem global climate change environmental science consumption feeding assay Integrative Biology Laboratory and Basic Science Research Marine Biology Other Ecology and Evolutionary Biology Other Life Sciences Systems Biology |
description |
One of the most destructive effects of global climate change is the increased carbon sequestering and consequential acidification of our world’s oceans. The impacts of ocean acidification on marine organisms are still relatively unknown, especially effects on behavioral ecology. Avoiding predation has emerged from recent behavioral ecology literature as a critical feature in the life history of a wide array of animal species; experiments on marine fishes suggest acidic water compromises their predator-avoidance abilities. Recent assays in our lab suggest predator-induced behavior is reduced by weakly acidic water. These experiments do not address the potential factor of generalized malaise caused by acidic water. To test this malaise hypothesis, I examined whether predator-induced reduction in feeding, previously documented by the Wright lab, is eliminated by acidic water using the following treatments: ambient artificial seawater (ASW) acidic ASW ambient predator-scented ASW acidic predator-scented ASW The malaise hypothesis predicts predator odor in acidic water would decrease feeding furthermore because the acidic water would sicken the subject. By contrast, if acidic water has a more subtle effect on hermit crab’s ability to detect its predator, the hermit crabs’ feeding in the presence of acidified water and predator odor should increase feeding rates to be comparable to ambient predator-free water. Preliminary experiments confirm slightly acidic water compromises predator detection, resulting in significantly more food consumption; these results discredit the generalized malaise hypothesis. This trend indicates global climate change could have significant and previously unanticipated impacts on predator-prey relations in marine communities. |
format |
Text |
author |
Sidun, Alexandra FW Wright, William G. |
author_facet |
Sidun, Alexandra FW Wright, William G. |
author_sort |
Sidun, Alexandra FW |
title |
Ocean Acidification and Predator-Prey Relations: Correlating Disruption of Predator Avoidance with Chemosensory Deficits |
title_short |
Ocean Acidification and Predator-Prey Relations: Correlating Disruption of Predator Avoidance with Chemosensory Deficits |
title_full |
Ocean Acidification and Predator-Prey Relations: Correlating Disruption of Predator Avoidance with Chemosensory Deficits |
title_fullStr |
Ocean Acidification and Predator-Prey Relations: Correlating Disruption of Predator Avoidance with Chemosensory Deficits |
title_full_unstemmed |
Ocean Acidification and Predator-Prey Relations: Correlating Disruption of Predator Avoidance with Chemosensory Deficits |
title_sort |
ocean acidification and predator-prey relations: correlating disruption of predator avoidance with chemosensory deficits |
publisher |
Chapman University Digital Commons |
publishDate |
2016 |
url |
https://digitalcommons.chapman.edu/cusrd_abstracts/190 https://digitalcommons.chapman.edu/context/cusrd_abstracts/article/1191/viewcontent/BIOL491Poster_FINAL.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Student Scholar Symposium Abstracts and Posters |
op_relation |
https://digitalcommons.chapman.edu/cusrd_abstracts/190 https://digitalcommons.chapman.edu/context/cusrd_abstracts/article/1191/viewcontent/BIOL491Poster_FINAL.pdf |
_version_ |
1768372519897661440 |