Global Change Biology最新文献

{"title":"Ectomycorrhizal Dominance Increases Temporal Stability of Productivity at Multiple Spatial Scales Across US Forests","authors":"Rongxu Shan,&nbsp;Ganxin Feng,&nbsp;Shaopeng Wang,&nbsp;Stavros D. Veresoglou,&nbsp;Mingyan Hu,&nbsp;Zilong Ma","doi":"10.1111/gcb.70097","DOIUrl":"https://doi.org/10.1111/gcb.70097","url":null,"abstract":"<div>\u0000 \u0000 <p>Mycorrhizas are fundamental to plant productivity and plant diversity maintenance, yet their influence on the temporal stability of forest productivity across scales remains uncertain. The multiscale stability theory clarifies that the temporal stability (γ stability) of metacommunity—several local communities connected through species dispersal—can be decomposed into the temporal stability of local communities (α stability) and asynchrony among them. Here, based on the forest inventory dataset from the United States and the multiscale stability theory, we explored how mycorrhizal strategy influences forest stability across scales and their underlying mechanisms. At the local scale, we found that α stability increased with ectomycorrhizal dominance due to the higher temporal stability of ectomycorrhizal trees. Additionally, higher α diversity associated with mixed mycorrhizal strategies promoted species asynchrony. At the metacommunity scale, the stabilizing effect of ectomycorrhizal dominance surpassed that of mixed mycorrhizal strategies on the asynchrony among local communities (i.e., spatial asynchrony), resulting in higher γ stability with increasing ectomycorrhizal dominance. Our research suggests the stabilizing effects of ectomycorrhizal dominance on the temporal stability of forest productivity, highlighting the importance of protecting ectomycorrhizal forests to maintain productivity under climate change, especially in the boreal-temperate ecotone where ectomycorrhizal trees are threatened by global change.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Smart Mixture Design Can Steer the Fate of Root-Derived Carbon Into Mineral-Associated and Particulate Organic Matter in Intensively Managed Grasslands","authors":"Esben Øster Mortensen,&nbsp;Diego Abalos,&nbsp;Tine Engedal,&nbsp;August Kau Lægsgaard,&nbsp;Kirsten Enggrob,&nbsp;Carsten W. Mueller,&nbsp;Jim Rasmussen","doi":"10.1111/gcb.70117","DOIUrl":"https://doi.org/10.1111/gcb.70117","url":null,"abstract":"<p>Species choice and richness in intensively managed grassland mixtures regulate soil carbon (C) input via rhizodeposition, with potential consequences for long-term soil organic carbon storage. Based on a field trial with different grass–legume–forb mixtures, we removed roots from the soil, which was then subjected to particle-size fractionation to trace fresh organic carbon (net C rhizodeposition) into particulate organic matter (POM) and mineral-associated organic matter (MAOM). We related these C input fractions to root traits. Using multiple-pulse ¹³C–CO₂-labeling, we captured the net formation of mineral-associated organic carbon (MAOC) and particulate organic carbon (POC) at the end of the growing season. Pure stand perennial ryegrass (<i>Lolium perenne</i>) had higher quantities of rhizodeposited C allocated to MAOC and POC (0.21 and 0.13 g C kg⁻¹ dry soil, respectively) compared to grass–legume–forb mixtures (ranging from 0.10 to 0.12 for MAOC and 0.05 to 0.06 g C kg⁻¹ dry soil for POC). However, the proportion of MAOC (%MAOC of net C rhizodeposition) in relation to that of POC was higher in mixtures with legumes. Species richness did not affect the quantity of MAOC or POC, nor %MAOC. The quantities of MAOC and POC were positively associated with root length. In contrast, %MAOC was positively associated with root diameter and a lower root C:N ratio. Despite higher %MAOC in mixtures with legumes, the main driver of MAOC and POC quantities was the total amount of C rhizodeposition. These results highlight the importance of legumes in the formation of MAOC from rhizodeposition and of high root length for increasing both MAOC and POC quantities. Our study shows how plant community design can be used to increase MAOC and/or POC and facilitate soil C storage. By revealing the traits behind the relationships between plant communities and MAOC and POC formation, we provide a guide for species selection in intensively managed grasslands to mitigate climate change.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Riverine Barrier Removals Could Proliferate Biological Invasions","authors":"Ellen J. Dolan,&nbsp;Ismael Soto,&nbsp;Jaimie T. A. Dick,&nbsp;Fengzhi He,&nbsp;Ross N. Cuthbert","doi":"10.1111/gcb.70093","DOIUrl":"10.1111/gcb.70093","url":null,"abstract":"<p>Multiple stressors, such as pollution, climate change, invasive species and fragmentation, threaten global ecosystems, requiring holistic management actions. Freshwater ecosystems are disproportionately biodiverse and particularly impacted by fragmentation and biological invasions. Artificial barriers, such as dams and weirs, are long-standing features of global landscapes, with a divergence of views on their benefits and disbenefits. Recognition of the negative impacts of barriers on the river continuum and native biota, particularly for migratory aquatic species, has led to a rapid rate of barrier removals in recent decades, especially in North America and Europe. However, since the rise in riverine barrier construction centuries ago, global biological invasion rates have concurrently surged. Artificial barriers can paradoxically slow the spread of invasive species through freshwaters, and barrier removal efforts thus risk proliferating invasive species that disperse rapidly through connected habitats. Despite well-intended plans for river restoration through barrier removals, the subsequent spread and colonisation of invasive species have been largely overlooked. This presents a ‘connectivity conundrum’: the removal of barriers intuitively addresses the issues of native species migrations and dispersals, but could perversely exacerbate the spread of invasive species. Basin-scale data collection around the short- and long-term impacts on invasive species will help to underpin future restoration projects and maximise the potential beneficial outcomes of barrier removals for native species.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143545981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simulated Climate Change Enhances Microbial Drought Resilience in Ethiopian Croplands but Not Forests","authors":"Lettice C. Hicks,&nbsp;Ainara Leizeaga,&nbsp;Carla Cruz Paredes,&nbsp;Albert C. Brangarí,&nbsp;Dániel Tájmel,&nbsp;Menale Wondie,&nbsp;Hans Sandén,&nbsp;Johannes Rousk","doi":"10.1111/gcb.70065","DOIUrl":"10.1111/gcb.70065","url":null,"abstract":"<p>Climate change and land-use change represent a dual threat to terrestrial ecosystem functioning. In the tropics, forest conversion to agriculture is occurring alongside warming and more pronounced periods of drought. Rainfall after drought induces enormous dynamics in microbial growth (potential soil carbon storage) and respiration (determining carbon loss), affecting the ecosystem carbon budget. We investigated how legacies of drought and warming affected microbial functional (growth and respiration) and structural (16S and ITS amplicon) responses after drought. Rain shelters and open-top chambers (OTCs) were used to simulate drought and warming in tropical cropland and forest sites in Ethiopia. Rain shelters reduced soil moisture by up to 25 vol%, with a bigger effect in the forest, while OTCs increased soil temperature by up to 6°C in the cropland and also reduced soil moisture but had no clear effect in the forest. Soils from these field treatments were then exposed to a standardized drought cycle to test how microbial community traits had been shaped by the different climate legacies. Microbial growth started increasing immediately after rewetting in all soils, reflecting a resilient response and indicating that microbial communities perceived the perturbation as relatively mild. Fungi recovered faster than bacteria, and the recovery of fungal growth was generally accelerated in soils with a legacy of drought. Microbial community functions and structures were both more responsive in the cropland than in forest soils, and a legacy of drought particularly enhanced microbial growth and respiration responses in the cropland but not the forest. Microbial communities in cropland soils also used carbon with a higher efficiency after rewetting. Together, these results suggest contrasting feedbacks to climate change determined by land use, where croplands will be associated with mitigated losses of soil carbon by microorganisms in response to future cycles of drought, compared to forests where soil carbon reservoirs remain more sensitive.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143545983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multiple Stressors Simplify Freshwater Food Webs","authors":"Peiyu Zhang,&nbsp;Huan Zhang,&nbsp;Shaopeng Wang,&nbsp;Guy Woodward,&nbsp;Eoin J. O'Gorman,&nbsp;Michelle C. Jackson,&nbsp;Lars-Anders Hansson,&nbsp;Sabine Hilt,&nbsp;Thijs Frenken,&nbsp;Huan Wang,&nbsp;Libin Zhou,&nbsp;Tao Wang,&nbsp;Min Zhang,&nbsp;Jun Xu","doi":"10.1111/gcb.70114","DOIUrl":"10.1111/gcb.70114","url":null,"abstract":"<div>\u0000 \u0000 <p>Globally, freshwater ecosystems are threatened by multiple stressors, yet our knowledge of how they interact to affect food web structure remains scant. To address this knowledge gap, we conducted a large-scale mesocosm experiment to quantify the single and combined effects of three common anthropogenic stressors: warming, increased nutrient loading, and insecticide pollution, on the network structure of shallow lake food webs. We identified both antagonistic and synergistic interactive effects depending on whether the stressors affected negative or positive feedback loops, respectively. Overall, multiple stressors simplified the food web, elongated energy transfer pathways, and shifted biomass distribution from benthic to more pelagic pathways. This increased the risk of a regime shift from a clear-water state dominated by submerged macrophytes to a turbid state dominated by phytoplankton. Our novel results highlight how multiple anthropogenic stressors can interactively disrupt food webs, with implications for understanding and managing aquatic ecosystems in a changing world.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143545985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Higher Plant Diversity Does Not Moderate the Influence of Changing Rainfall Regimes on Plant–Soil Feedback of a Semi-Arid Grassland","authors":"Xiliang Li,&nbsp;G. Kenny Png,&nbsp;Zhen Zhang,&nbsp;Fenghui Guo,&nbsp;Yuanheng Li,&nbsp;Fang Li,&nbsp;Shan Luo,&nbsp;Nicholas J. Ostle,&nbsp;John N. Quinton,&nbsp;Urs A. Schaffner,&nbsp;Xiangyang Hou,&nbsp;David A. Wardle,&nbsp;Richard D. Bardgett","doi":"10.1111/gcb.70084","DOIUrl":"https://doi.org/10.1111/gcb.70084","url":null,"abstract":"<p>Climate change is expected to increase the frequency of severe droughts, but it remains unclear whether soil biotic conditioning by plant communities with varying species richness or functional group diversity moderate plant–soil feedback (PSF)—an important ecosystem process driving plant community dynamics—under altered rainfall regimes. We conducted a two-phase PSF experiment to test how plant diversity affects biotic PSF under different rainfall regimes. In Phase 1, we set up mesocosms with 15 plant assemblages composed of two grasses, two forbs and two nitrogen-fixing legumes [one, two, three, or six species from one, two, or three functional group(s)] common to the semi-arid eastern Eurasian Steppe. Mesocosms were subjected to two rainfall amounts (ambient, 50% reduction) crossed with two frequencies (ambient, 50% reduction) for a growing season (~3 months). Conditioned soil from each mesocosm was then used in Phase 2 to inoculate (7% v/v) sterilised mesocosms planted with the same species as in Phase 1 and grown for 8 weeks. Simultaneously, the same plant assemblages were grown in sterilised soil to calculate PSF based on plant biomass measured at the end of Phase 2. Feedback effects differed amongst plant assemblages, but were not significantly altered by reduced rainfall treatments within any plant assemblage. This suggests that the examined interactions between plant and soil microbial communities were resistant to simulated rainfall reductions and that increasing plant diversity did not moderate PSF under altered rainfall regimes. Moreover, increasing plant species richness or functional group diversity did not lessen the magnitude of PSF differences between ambient and reduced rainfall treatments. Collectively, these findings advance our understanding of plant diversity's potential to mitigate climate change effects on PSF, showing that in semi-arid grasslands, higher plant diversity may not moderate PSF responses to altered rainfall regimes and highlighting the importance of considering species-specific traits and interaction stability.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Minor Effects of Warming on Soil Microbial Diversity, Richness and Community Structure","authors":"Xudong Wang,&nbsp;Wenao Wu,&nbsp;Gukailin Ao,&nbsp;Mengguang Han,&nbsp;Mengli Liu,&nbsp;Rui Yin,&nbsp;Jiguang Feng,&nbsp;Biao Zhu","doi":"10.1111/gcb.70104","DOIUrl":"https://doi.org/10.1111/gcb.70104","url":null,"abstract":"<div>\u0000 \u0000 <p>Climate warming has caused widespread global concern. However, how warming affects soil microbial diversity, richness, and community structure on a global scale remains poorly understood. Here we conduct a meta-analysis of 945 observations from 100 publications by collecting relevant data. The results show that field warming experiments significantly modify soil temperature (+1.8°C), soil water content (−3.2%), and soil pH (−0.04). However, field warming does not significantly alter the diversity, richness, and community structure of soil bacteria and fungi. Warming-induced changes in soil variables (i.e., ΔSoil water content, ΔpH), ΔTemperature and experimental duration are important factors influencing the microbial responses to warming. In addition, soil bacterial α-diversity (Shannon index) decreases significantly (−3.4%) when the warming duration is 3–6 years, and bacterial β-diversity increases significantly (35.2%) when warming exceeds 6 years. Meta-regression analysis reveals a positive correlation between the change of bacterial Shannon index and ΔpH. Moreover, warming produces more pronounced effects on fungal Shannon index and β-diversity in experimental sites with moderate mean annual temperature (MAT, 0°C–10°C) than in higher (&gt; 10°C) or lower (&lt; 0°C) MAT. Overall, this study provides a global perspective on the response of soil microorganisms to climate warming and improves our knowledge of the factors influencing the response of soil microorganisms to warming.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Capturing Forest Ecosystem Dynamics After Disturbances: From Individual Trees to Landscapes","authors":"Xiangyi Li,&nbsp;Hui Yang","doi":"10.1111/gcb.70107","DOIUrl":"https://doi.org/10.1111/gcb.70107","url":null,"abstract":"<p>Adopting a multiscale perspective that connects forest dynamics from tree stands to landscapes is crucial for understanding how forest ecosystems will evolve under global environmental change. This commentary highlights the significance of Perret et al.'s (2025) study in providing valuable insights into how individual tree plasticity drives community reorganization and ultimately alters ecosystem resilience, via integrating individual tree species into community-level analyses. Their study has important implications for modeling and predicting forest resilience, as well as for informing sustainable management strategies in response to future climate change and increasing disturbances.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70107","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143535912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Global Meta-Analysis of Land Use Change on Soil Mineral-Associated and Particulate Organic Carbon","authors":"Yuqing Zhao,&nbsp;Yulin Xu,&nbsp;Xinyu Cha,&nbsp;Peng Zhang,&nbsp;Yifan Li,&nbsp;Andong Cai,&nbsp;Zhenghu Zhou,&nbsp;Gaihe Yang,&nbsp;Xinhui Han,&nbsp;Chengjie Ren","doi":"10.1111/gcb.70111","DOIUrl":"https://doi.org/10.1111/gcb.70111","url":null,"abstract":"<div>\u0000 \u0000 <p>Separating soil organic carbon (SOC) into mineral-associated organic carbon (MAOC) and particulate organic carbon (POC) enables accurate prediction of SOC vulnerability to land use change (LUC). Here, we synthesize the responses of soil MAOC and POC to LUC, including land restoration and degradation, from 693 soil observations globally. We observed a large increase in soil MAOC and POC after restoration and a greater decline after degradation, but the magnitude and proportion of these two carbon fractions (fMAOC and fPOC) varied with LUC. POC, in comparison with MAOC, responded more sensitively to LUC, suggesting that POC was more vulnerable to environmental change. Using observed duration relationships, we found that the fraction of POC (fPOC) was higher at the early stage of restoration but lower at the late stage, projecting that soil carbon stability declined after short-term restoration but gradually increased after long-term restoration. Further analysis showed the context-dependent effects of LUC on carbon fractions: in arid or carbon-poor topsoil, restoration greatly increased soil carbon fractions and fPOC, while in humid or carbon-rich topsoil, degradation resulted in large decreases in POC and MAOC, especially POC. Overall, we highlight the importance of soil fractions, particularly POC, in predicting soil carbon stability and suggest that incorporating climate and initial carbon status in models of soil carbon dynamics helps to accurately predict future carbon sink potential.</p>\u0000 </div>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rapid Evolution in Action: Environmental Filtering Supports Coral Adaptation to a Hot, Acidic, and Deoxygenated Extreme Habitat","authors":"Carlos Leiva,&nbsp;Gergely Torda,&nbsp;Chengran Zhou,&nbsp;周程冉,&nbsp;Yunrui Pan,&nbsp;潘云瑞,&nbsp;Jess Harris,&nbsp;Xueyan Xiang,&nbsp;向薛雁,&nbsp;Shangjin Tan,&nbsp;谭上进,&nbsp;Wei Tian,&nbsp;田巍,&nbsp;Benjamin Hume,&nbsp;David J. Miller,&nbsp;Qiye Li,&nbsp;李启业,&nbsp;Guojie Zhang,&nbsp;张国捷,&nbsp;Ira Cooke,&nbsp;Riccardo Rodolfo-Metalpa","doi":"10.1111/gcb.70103","DOIUrl":"https://doi.org/10.1111/gcb.70103","url":null,"abstract":"<p>The semienclosed Bouraké lagoon in New Caledonia is a natural system that enables observation of evolution in action with respect to stress tolerance in marine organisms, a topic directly relevant to understanding the consequences of global climate change. Corals inhabiting the Bouraké lagoon endure extreme conditions of elevated temperature (&gt; 33°C), acidification (7.2 pH units), and deoxygenation (2.28 mg O2 L-1), which fluctuate with the tide due to the lagoon's geomorphology. To investigate the underlying bases of the apparent stress tolerance of these corals, we combined whole genome resequencing of the coral host and ITS2 metabarcoding of the photosymbionts from 90 <i>Acropora tenuis</i> colonies from three localities along the steep environmental gradient from Bouraké to two nearby control reefs. Our results highlight the importance of coral flexibility to associate with different photosymbionts in facilitating stress tolerance of the holobiont; but, perhaps more significantly, strong selective effects were detected at specific loci in the host genome. Fifty-seven genes contained SNPs highly associated with the extreme environment of Bouraké and were enriched in functions related to sphingolipid metabolism. Within these genes, the conserved sensor of noxious stimuli TRPA1 and the ABCC4 transporter stood out due to the high number of environmentally selected SNPs that they contained. Protein 3D structure predictions suggest that a single-point mutation causes the rotation of the main regulatory domain of TRPA1, which may be behind this case of natural selection through environmental filtering. While the corals of the Bouraké lagoon provide a striking example of rapid adaptation to extreme conditions, overall, our results highlight the need to preserve the current standing genetic variation of coral populations to safeguard their adaptive potential to ongoing rapid environmental change.</p>","PeriodicalId":175,"journal":{"name":"Global Change Biology","volume":"31 3","pages":""},"PeriodicalIF":10.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gcb.70103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}