Unexpectedly high coral heat tolerance at thermal refugia
Unexpectedly high coral heat tolerance at thermal refugia
复制标题
珊瑚礁的耐热性出乎意料地高
DOI:
10.1101/2023.06.16.545328
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Lachs L
中科院分区:
文献类型:
--
作者:
Lachs L
Marine heatwaves and mass bleaching have led to global declines in coral reefs. Corals can adapt, yet, to what extent local variations in thermal stress regimes influence heat tolerance and adaptive potential remains uncertain. Here we identify persistent local-scale thermal refugia and hotspots among the reefs of a remote Pacific archipelago, based on 36 years of satellite-sensed temperatures. Theory suggests that hotspots should promote coral heat tolerance through acclimatisation and directional selection. While historic patterns of mass bleaching and marine heatwaves align with this expectation, we find a contrasting pattern for a single species,Acropora digitifera, exposed to a marine heatwave experiment. Higher heat tolerance at thermal refugia (+0.7 °C-weeks) and correlations with other traits suggest that non-thermal selective pressures may also influence heat tolerance. We also uncover widespread heat tolerance variability, indicating climate adaptation potential. Compared to the least-tolerant 10% of theA. digitiferapopulation, the most-tolerant 10% could withstand an additional heat stress of 5.2 and 4.1 °C-weeks for thermal refugia and hotspots, respectively. Despite expectations, local-scale thermal refugia can harbour higher heat tolerance, and mass bleaching patterns do not necessarily predict species responses. This has important implications for designing climate-smart initiatives to tackle global-scale adaptive management problems.
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DOI:
10.1002/eap.2262
发表时间:
2021-06
期刊:
Ecological applications : a publication of the Ecological Society of America
影响因子:
--
作者:
Grottoli AG;Toonen RJ;van Woesik R;Vega Thurber R;Warner ME;McLachlan RH;Price JT;Bahr KD;Baums IB;Castillo KD;Coffroth MA;Cunning R;Dobson KL;Donahue MJ;Hench JL;Iglesias-Prieto R;Kemp DW;Kenkel CD;Kline DI;Kuffner IB;Matthews JL;Mayfield AB;Padilla-Gamiño JL;Palumbi S;Voolstra CR;Weis VM;Wu HC
通讯作者:
Wu HC
影响因子:
9.8
作者:
Hock K;Wolff NH;Ortiz JC;Condie SA;Anthony KRN;Blackwell PG;Mumby PJ
通讯作者:
Mumby PJ
影响因子:
7.7
作者:
Cornwell B;Armstrong K;Walker NS;Lippert M;Nestor V;Golbuu Y;Palumbi SR
通讯作者:
Palumbi SR
DOI:
--
发表时间:
2021
期刊:
影响因子:
--
作者:
Alejandra Virgen Urcelay
通讯作者:
Alejandra Virgen Urcelay
影响因子:
16.6
作者:
Sully, S.;Burkepile, D. E.;van Woesik, R.
通讯作者:
van Woesik, R.