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Acclimatization to high-variance habitats does not enhance physiological tolerance of two key Caribbean corals to future temperature and pH

Corals are acclimatized to populate dynamic habitats that neighbour coral reefs. Habitats such as seagrass beds exhibit broad diel changes in temperature and pH that routinely expose corals to conditions predicted for reefs over the next 50-100 years. However, whether such acclimatization effectively enhances physiological tolerance to, and hence provides refuge against, future climate scenarios remains unknown. Also, whether corals living in low-variance habitats can tolerate present-day high-variance conditions remains untested. We experimentally examined how pH and temperature predicted for the year 2100 affects the growth and physiology of two dominant Caribbean corals (Acropora palmata and Porites astreoides) native to habitats with intrinsically low (outer-reef terrace, LV) and/or high (neighbouring seagrass, HV) environmental variance. Under present-day temperature and pH, growth and metabolic rates (calcification, respiration and photosynthesis) were unchanged for HV versus LV populations. Superimposing future climate scenarios onto the HV and LV conditions did not result in any enhanced tolerance to colonies native to HV. Calcification rates were always lower for elevated temperature and/or reduced pH. Together, these results suggest that seagrass habitats may not serve as refugia against climate change if the magnitude of future temperature and pH changes is equivalent to neighbouring reef habitats.

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Camp, Emma F, Smith, David J, Evenhuis, Chris, Enochs, I C, Manzello, Derek P, Woodcock, Stephen, Suggett, David J (2016). Dataset: Acclimatization to high-variance habitats does not enhance physiological tolerance of two key Caribbean corals to future temperature and pH. https://doi.org/10.1594/PANGAEA.861875

DOI retrieved: 2016

Additional Info

Field Value
Imported on November 29, 2024
Last update November 30, 2024
License CC-BY-3.0
Source https://doi.org/10.1594/PANGAEA.861875
Author Camp, Emma F
Given Name Emma F
Family Name Camp
More Authors
Smith, David J
Evenhuis, Chris
Enochs, I C
Manzello, Derek P
Woodcock, Stephen
Suggett, David J
Source Creation 2016
Publication Year 2016
Resource Type text/tab-separated-values - filename: Camp_2016
Subject Areas
Name: BiologicalClassification

Name: Biosphere

Name: Chemistry

Name: Ecology

Related Identifiers
Title: Acclimatization to high-variance habitats does not enhance physiological tolerance of two key Caribbean corals to future temperature and pH
Identifier: https://doi.org/10.1098/rspb.2016.0442
Type: DOI
Relation: IsSupplementTo
Year: 2016
Source: Proceedings of the Royal Society B-Biological Sciences
Authors: Camp Emma F , Smith David J , Evenhuis Chris , Enochs I C , Manzello Derek P , Woodcock Stephen , Suggett David J .

Title: seacarb: seawater carbonate chemistry with R. R package version 3.0.8
Identifier: https://cran.r-project.org/package=seacarb
Type: DOI
Relation: References
Year: 2015
Authors: Gattuso Jean-Pierre , Epitalon Jean-Marie , Lavigne Héloïse .