Comparative thermal performance of the reef-building coral Orbicella franksi at its latitudinal range limits
Comparative thermal performance of the reef-building coral Orbicella franksi at its latitudinal range limits
复制标题
造礁珊瑚 Orbicella Franksi 在其纬度范围限制下的热性能比较
DOI:
10.1007/s00227-019-3573-6
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发表时间:
2019
期刊:
影响因子:
2.4
通讯作者:
Putnam, Hollie M.
中科院分区:
文献类型:
--
作者:
Silbiger, Nyssa J.;Goodbody-Gringley, Gretchen;Bruno, John F.;Putnam, Hollie M.
Temperature drives biological responses that scale from the cellular to ecosystem levels and thermal sensitivity will shape organismal functions and population dynamics as the world warms. Reef-building corals are sensitive to temperature due to their endosymbiotic relationship with single-celled dinoflagellates, with mass mortality events increasing in frequency and magnitude. The purpose of this study was to quantify the thermal sensitivity of important physiological functions of a Caribbean reef-building coral,Orbicella franksi,through the measurement of thermal performance curves (TPCs). We compared TPC metrics (thermal optimum, critical maximum, activation energy, deactivation energy, and rate at a standardized temperature) between two populations at the northern and southern extents of the geographic range ofO. franksi. We further compared essential coral organismal processes (gross photosynthesis, respiration, and calcification) within a site to determine which function is most sensitive to thermal stress using a hierarchical Bayesian-modeling approach. We found evidence for differences in thermal performance, which could be due to thermal adaptation or acclimatization, with higher TPC metrics (thermal optimum and critical maximum) in warmer Panama, compared to cooler Bermuda. We also documented the hierarchy in thermal sensitivity of essential organismal functions within a population: respiration was less sensitive than photosynthesis, which was less sensitive than calcification. Understanding thermal performance of corals is essential for projecting coral reef futures, given that key biological functions necessary to sustain coral reef ecosystems are thermally mediated.
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DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
J. M. Locke;Jaret P. Bilewitch;K. Coates
通讯作者:
K. Coates
影响因子:
8.7
作者:
Hannah E. Aichelman
通讯作者:
Hannah E. Aichelman
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
Madeleine J. H. van Oppen;Janice M. Lough
通讯作者:
Janice M. Lough
DOI:
10.1101/583294
发表时间:
2019
期刊:
bioRxiv
影响因子:
--
作者:
N. Silbiger;G. Goodbody;J. Bruno;H. Putnam
通讯作者:
H. Putnam
影响因子:
1.6
作者:
GOREAU, TF
通讯作者:
GOREAU, TF