Journal of Ecology最新文献

{"title":"Declines in dryland woody vegetation following an extended dry decade","authors":"Yoni Waitz, Ron Drori, Efrat Sheffer","doi":"10.1111/1365-2745.70479","DOIUrl":"https://doi.org/10.1111/1365-2745.70479","url":null,"abstract":"<jats:list> <jats:list-item> Changes in temperature, rainfall regimes and water availability, as part of global climate change, lead to increased drought stress, especially in dry ecosystems. Yet empirical evidence of how woody vegetation responds to such climate drying remains scarce. </jats:list-item> <jats:list-item> We examined changes in woody cover and species composition across 71 woodland and shrubland sites, spanning the east Mediterranean climatic gradient, resurveyed a decade apart (2008–2009 and 2018–2019). The studied decade was characterized by reduced rainfall and a shorter rainy season combined with consistent warming, resulting in increasing aridity. </jats:list-item> <jats:list-item> Woody cover declined in 52% of sites and increased in 24% of them. The magnitude of decline was greatest in arid regions and was strongly predicted by mean annual precipitation. Model selection identified species richness as a stabilizing factor: sites with high species richness experienced smaller losses or maintained stable woody cover. </jats:list-item> <jats:list-item> At the species level, we identified seven dominant tree, shrub and sub‐shrub species. Of these, <jats:italic>Quercus coccifera</jats:italic> var. <jats:italic>calliprinos</jats:italic> showed consistent increases in cover, correlated with the rainfall gradient, whereas the cover of <jats:italic>Pistacia lentiscus</jats:italic> , <jats:italic>Calicotome villosa</jats:italic> , <jats:italic>Cistus</jats:italic> spp., and <jats:italic>Sarcopoterium spinosum</jats:italic> declined. The cover of <jats:italic>Phillyrea latifolia</jats:italic> and <jats:italic>Rhamnus</jats:italic> spp. was relatively stable. However, climatic variability explained only a small portion of the change in cover of each of the dominant species. </jats:list-item> <jats:list-item> <jats:italic>Synthesis</jats:italic> . Our results reveal a shift from the well‐documented trajectory of secondary woodland regeneration towards regional declines in woody cover under intensifying aridity. Our findings provide rare field‐based evidence that species richness enhances vegetation resistance to climate drying. </jats:list-item> </jats:list>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"9 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149367689","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":"Beyond the safety thresholds: Contrasting drought responses in Mediterranean seeders and resprouters revealed by hydraulic and leaf turgor safety margins","authors":"Luna Morcillo, Miriam Heredia‐Osorio, Esteban Chirino, Eustaquio Gil‐Pelegrín, Alberto Vilagrosa","doi":"10.1111/1365-2745.70482","DOIUrl":"https://doi.org/10.1111/1365-2745.70482","url":null,"abstract":"<jats:list> <jats:list-item> The Mediterranean region is warming around 20% faster than the global average, and models project declines between 10% and 30% in precipitation by the middle of the century. Increasing drought and heat stress conditions are causing massive climate‐driven forest decline and mortality episodes around the world, especially exacerbated in water‐limited ecosystems. Therefore, it is critical to understand species‐specific physiological thresholds underlying drought‐induced mortality. </jats:list-item> <jats:list-item> We experimentally compare drought resistance and short‐term resilience of Mediterranean woody species with contrasting post‐disturbance regeneration strategies (obligate seeders vs. resprouters) along a controlled drought stress gradient. Our aim is to unravel the physiological mechanisms behind drought‐induced mortality and assess variations in the safety thresholds of both plant regeneration strategies. </jats:list-item> <jats:list-item> We quantify hydraulic safety margins (HSM), leaf turgor safety margins (LTSM), leaf damage, mortality and non‐structural carbohydrates (NSC). Both HSM and LTSM decline as the drought intensifies, but their relationship with mortality differs from a simple threshold avoidance pattern. Mortality increases with decreasing HSM and LTSM in both regeneration strategies. Seeders show substantially higher mortality around HSM = 0, while resprouters frequently operate beyond HSM = 0 with lower mortality. Leaf damage emerges as a strong predictor of mortality, with a more severe response in seeders, while declining NSC concentrations were associated with a marked increase in mortality in seeders, but not in resprouters. Our results reinforce current mortality models that invoke dual thresholds, loss of stem conductivity and safety margins, and carbohydrate depletion as decisive predictors of drought‐induced mortality in plants. </jats:list-item> <jats:list-item> <jats:italic>Synthesis</jats:italic> . Our findings present key insights into the role of plant regeneration strategy and physiological characteristics in enhancing resilience to drought and identify different drought‐induced functional phases defined by the interaction between HSM and LTSM. These results emphasize the importance of promoting mixed communities of these co‐occurring strategies in the conservation and adaptive management plans of Mediterranean forest ecosystems in the context of global change. </jats:list-item> </jats:list>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"14 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149367792","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":"Divergent associations of plant functional composition and species richness with above- and below-ground multitrophic organization in a desert steppe","authors":"Chengru Ma,&nbsp;Xu Luo,&nbsp;Cui Han,&nbsp;Jiali Lian,&nbsp;Xueqin Yang,&nbsp;Siyi Liu,&nbsp;Jianping Li","doi":"10.1111/1365-2745.70473","DOIUrl":"https://doi.org/10.1111/1365-2745.70473","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"114 11","pages":""},"PeriodicalIF":6.3,"publicationDate":"2026-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149356482","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":"Plant diversity–mediated variation in root exudates regulates anaerobic nitrogen transformations in soil","authors":"Caifang Zhang,&nbsp;Miaomiao Cai,&nbsp;Caroline Njambi Ndungu,&nbsp;Ling Li,&nbsp;Wenzhi Liu","doi":"10.1111/1365-2745.70477","DOIUrl":"https://doi.org/10.1111/1365-2745.70477","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"114 11","pages":""},"PeriodicalIF":6.3,"publicationDate":"2026-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149356004","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":"Trees rely on both root-based ‘do-it-yourself’ and mycorrhizal-based ‘outsourcing’ adaptations to shifting soil nutrient availability during forest stand development","authors":"Xin Li,&nbsp;Guigang Lin,&nbsp;De-Hui Zeng,&nbsp;Nianpeng He,&nbsp;Yansong Zhang,&nbsp;Grégoire T. Freschet","doi":"10.1111/1365-2745.70474","DOIUrl":"10.1111/1365-2745.70474","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"114 11","pages":""},"PeriodicalIF":6.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149304490","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":"Regeneration beyond the treeline: Seed and seedling performance of the Himalayan birch tree under climate warming","authors":"Firdous Ahmad Dar,&nbsp;Maroof Hamid,&nbsp;Faizan Shafee,&nbsp;Sajad Ahmad Wani,&nbsp;Manzoor Ahmad Shah,&nbsp;Anzar Ahmad Khuroo","doi":"10.1111/1365-2745.70466","DOIUrl":"10.1111/1365-2745.70466","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"114 11","pages":""},"PeriodicalIF":6.3,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149281569","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":"Asynchrony-to-averaging stabilization shift in alpine grassland restoration","authors":"Qinghui Fang,&nbsp;Bin He,&nbsp;Min Zhang,&nbsp;Di Lu,&nbsp;Wenyin Wang,&nbsp;Chenghao Jiang,&nbsp;A. Allan Degen,&nbsp;Yiming Cheng,&nbsp;Yuzhen Wang,&nbsp;Tongyu Wang,&nbsp;Shi Qin,&nbsp;Shixiong Li,&nbsp;Yushou Ma,&nbsp;Zhanhuan Shang","doi":"10.1111/1365-2745.70471","DOIUrl":"10.1111/1365-2745.70471","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"114 11","pages":""},"PeriodicalIF":6.3,"publicationDate":"2026-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149275076","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":"Silicon shifts plant stoichiometry: A meta‐analysis","authors":"Xuqing Li, Yolima Carrillo, Scott N. Johnson","doi":"10.1111/1365-2745.70457","DOIUrl":"https://doi.org/10.1111/1365-2745.70457","url":null,"abstract":"<jats:list> <jats:list-item> Silicon (Si) is increasingly linked to shifts in plant carbon (C), nitrogen (N) and phosphorus (P) stoichiometry. However, reported responses vary widely across records. A quantitative synthesis is therefore needed to understand the overall direction and magnitude of these responses. </jats:list-item> <jats:list-item> We conducted a meta‐analysis of 168 records to quantify responses of plant C, N and P stoichiometry and nutrient use efficiency (NUE) to Si addition. Overall, Si addition reduced C concentration by 2.3% and C:P by 5% and increased P concentration by 8% and NUE by 14%. Plant N concentrations and C:N ratios showed no significant response. Reductions in C and C:P and increases in NUE were stronger in Poaceae, whereas the P increase was larger in non‐Poaceae. The Si‐C relationship was nonlinear and differed between families, and the P increase occurred only in substrate‐grown plants, not in hydroponics. This suggests no single mechanism accounted for the stoichiometric responses across plant families. </jats:list-item> <jats:list-item> <jats:italic>Synthesis.</jats:italic> Si could regulate plant C and P stoichiometry with potential ecological implications. By mobilising P and improving NUE, Si may help mitigate nutrient constraints on biomass production and shape plant performance. Furthermore, reduced plant C:P ratios translate into P‐rich and high‐quality litter, which may in turn alter litter decomposition and soil nutrient cycling. </jats:list-item> </jats:list>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"102 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2026-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149281570","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":"Drought legacies weaken resistance and plant-mycorrhizal associations but not recovery","authors":"Smriti Pehim Limbu,&nbsp;David L. Hoover,&nbsp;Melinda D. Smith,&nbsp;Meghan L. Avolio","doi":"10.1111/1365-2745.70469","DOIUrl":"10.1111/1365-2745.70469","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"114 10","pages":""},"PeriodicalIF":6.3,"publicationDate":"2026-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2745.70469","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149251281","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":"Seed-derived microbiota in the Medicago holobiont: Associations with host phylogeny and breeding-associated traits","authors":"Wenfeng Ai,&nbsp;Jianing Wang,&nbsp;Tengfei Ma,&nbsp;Lina Zheng,&nbsp;Zhaoming Wang,&nbsp;Philippe Vandenkoornhuyse,&nbsp;Ning Ling","doi":"10.1111/1365-2745.70468","DOIUrl":"10.1111/1365-2745.70468","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"114 10","pages":""},"PeriodicalIF":6.3,"publicationDate":"2026-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149251306","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}