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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.16480
|2 doi
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|a pubmed24n1160.xml
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|a (DE-627)NLM348293062
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|a (NLM)36315059
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Shantz, Andrew A
|e verfasserin
|4 aut
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|a Positive interactions between corals and damselfish increase coral resistance to temperature stress
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 16.12.2022
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|a Date Revised 23.01.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2022 John Wiley & Sons Ltd.
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|a By the century's end, many tropical seas will reach temperatures exceeding most coral species' thermal tolerance on an annual basis. The persistence of corals in these regions will, therefore, depend on their abilities to tolerate recurrent thermal stress. Although ecologists have long recognized that positive interspecific interactions can ameliorate environmental stress to expand the realized niche of plants and animals, coral bleaching studies have largely overlooked how interactions with community members outside of the coral holobiont shape the bleaching response. Here, we subjected a common coral, Pocillopora grandis, to 10 days of thermal stress in aquaria with and without the damselfish Dascyllus flavicaudus (yellowtail dascyllus), which commonly shelter within these corals, to examine how interactions with damselfish impacted coral thermal tolerance. Corals often benefit from nutrients excreted by animals they interact with and prior to thermal stress, corals grown with damselfish showed improved photophysiology (Fv /Fm ) and developed larger endosymbiont populations. When exposed to thermal stress, corals with fish performed as well as control corals maintained at ambient temperatures without fish. In contrast, corals exposed to thermal stress without fish experienced photophysiological impairment, a more than 50% decline in endosymbiont density, and a 36% decrease in tissue protein content. At the end of the experiment, thermal stress caused average calcification rates to decrease by over 80% when damselfish were absent but increase nearly 25% when damselfish were present. Our study indicates that damselfish-derived nutrients can increase coral thermal tolerance and are consistent with the Stress Gradient Hypothesis, which predicts that positive interactions become increasingly important for structuring communities as environmental stress increases. Because warming of just a few degrees can exceed corals' temperature tolerance to trigger bleaching and mortality, positive interactions could play a critical role in maintaining some coral species in warming regions until climate change is aggressively addressed
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|a Journal Article
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|a coral bleaching
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|a facilitation
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|a fish-derived nutrients
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|a global change
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|a mutualisms
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|a nutrients
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|a positive interactions
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|a stress-gradient hypothesis
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|a symbiosis
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1 |
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|a Ladd, Mark C
|e verfasserin
|4 aut
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1 |
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|a Ezzat, Leila
|e verfasserin
|4 aut
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1 |
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|a Schmitt, Russell J
|e verfasserin
|4 aut
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1 |
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|a Holbrook, Sally J
|e verfasserin
|4 aut
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1 |
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|a Schmeltzer, Emily
|e verfasserin
|4 aut
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1 |
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|a Vega Thurber, Rebecca
|e verfasserin
|4 aut
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1 |
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|a Burkepile, Deron E
|e verfasserin
|4 aut
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773 |
0 |
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|i Enthalten in
|t Global change biology
|d 1999
|g 29(2023), 2 vom: 22. Jan., Seite 417-431
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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773 |
1 |
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|g volume:29
|g year:2023
|g number:2
|g day:22
|g month:01
|g pages:417-431
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|u http://dx.doi.org/10.1111/gcb.16480
|3 Volltext
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|d 29
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|e 2
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|h 417-431
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