Journal of Ecology最新文献

{"title":"Ectomycorrhizal tree islands in arbuscular mycorrhizal forests: Hotspots of fungal inoculum important for seedling establishment of historically dominant trees","authors":"Andrew M. Cortese,&nbsp;Thomas R. Horton","doi":"10.1111/1365-2745.14417","DOIUrl":"10.1111/1365-2745.14417","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"112 11","pages":"2680-2694"},"PeriodicalIF":5.3,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2745.14417","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325382","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":"Vulnerability segmentation is vital to hydraulic strategy of tropical–subtropical woody plants","authors":"Dong‐Liu Huang, Feng Zhang, Ya‐Dong Qie, Yong‐Qiang Wang, Chun‐Yan Wan, Jun‐Rui Yu, Jun Zhang, Jing‐Xi Gan, Shi‐Dan Zhu","doi":"10.1111/1365-2745.14421","DOIUrl":"https://doi.org/10.1111/1365-2745.14421","url":null,"abstract":"<jats:list> <jats:list-item>The vulnerability segmentation hypothesis proposes that the hydraulic function of expensive stems can be protected by sacrificing cheap leaves, which has been proven to be a key strategy to survive drought for woody species from arid regions. Climate change has caused increasing severe droughts in relatively humid tropical‐subtropical forests. However, whether vulnerability segmentation (measured as the differences in embolism resistance between stem and leaf; <jats:italic>P</jats:italic>50<jats:sub>leaf–stem</jats:sub>) plays a role in the hydraulic strategy of tropical‐subtropical woody plants remains unclear.</jats:list-item> <jats:list-item>We investigated 12 key hydraulically related traits of stems and leaves (i.e. cavitation resistance, water potential, safety margin, vulnerability segmentation, leaf‐sapwood area ratio and water use efficiency) and mortality rates for 130 dominant woody species from six forest types with a range of aridity index in tropical–subtropical China. Our main objectives were to: (1) build a stem‐leaf hydraulic framework and capture the key hydraulic traits, (2) compare the hydraulic strategies of different forest types and functional groups and (3) elucidate the influence of environmental factors and hydraulic traits on mortality rate.</jats:list-item> <jats:list-item>Trait network analysis revealed close relationships among stem and leaf hydraulic traits, where cavitation resistance, turgor loss point and <jats:italic>P</jats:italic>50<jats:sub>leaf–stem</jats:sub> were the key traits. In general, a larger <jats:italic>P</jats:italic>50<jats:sub>leaf–stem</jats:sub> was associated with lower minimum water potential, leaf hydraulic safety margin and leaf‐sapwood area ratio but higher wood density, stem hydraulic safety margin and water use efficiency. Tropical forest (high aridity) had higher leaf embolism resistance, <jats:italic>P</jats:italic>50<jats:sub>leaf–stem</jats:sub>, wood density and water use efficiency than subtropical forest (low aridity), while shrubs showed higher leaf embolism resistance and more negative turgor loss point than trees. However, stem‐leaf hydraulic strategy did not differ significantly between evergreens and deciduous. Both aridity index and hydraulic traits affect species mortality. Particularly, <jats:italic>P</jats:italic>50<jats:sub>leaf–stem</jats:sub> was a good predictor of drought‐induced mortality in tropical forests.</jats:list-item> <jats:list-item><jats:italic>Synthesis</jats:italic>. Our results recommend that vulnerability segmentation should be incorporated into the hydraulic strategy of tropical–subtropical woody plants to explore their drought response to future climate change.</jats:list-item> </jats:list>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"56 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142325381","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":"Projected near-future flooding and warming increase graminoid biomass in a high-latitude coastal wetland","authors":"Matteo Petit Bon, A. Joshua Leffler, Katharine C. Kelsey, Tyler J. Williams, Karen H. Beard","doi":"10.1111/1365-2745.14418","DOIUrl":"https://doi.org/10.1111/1365-2745.14418","url":null,"abstract":"<h2> CONFLICT OF INTEREST STATEMENT</h2>\u0000<p>The authors declare no conflicts of interest.</p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"190 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142314000","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":"Effects of water limitation and competition on tree carbon allocation in an Earth system modelling framework","authors":"Jeremy W. Lichstein,&nbsp;Tao Zhang,&nbsp;Ensheng Weng,&nbsp;Caroline E. Farrior,&nbsp;Ray Dybzinski,&nbsp;Sergey Malyshev,&nbsp;Elena Shevliakova,&nbsp;Richard A. Birdsey,&nbsp;Stephen W. Pacala","doi":"10.1111/1365-2745.14416","DOIUrl":"10.1111/1365-2745.14416","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"112 11","pages":"2522-2539"},"PeriodicalIF":5.3,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142313999","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":"Embracing plant–plant interactions—Rethinking predictions of species range shifts","authors":"Pieter Sanczuk, Dries Landuyt, Emiel De Lombaerde, Jonathan Lenoir, Eline Lorer, Miska Luoto, Koenraad Van Meerbeek, Florian Zellweger, Pieter De Frenne","doi":"10.1111/1365-2745.14415","DOIUrl":"https://doi.org/10.1111/1365-2745.14415","url":null,"abstract":"<h2> CONFLICT OF INTEREST STATEMENT</h2>\u0000<p>The authors declare that there is no conflict of interest.</p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"36 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142314001","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":"Seasonal variability and seagrass traits affect methane fluxes in a subtropical meadow","authors":"Alexandra L. Bijak, Laura K. Reynolds, Willm Martens‐Habbena, Ashley R. Smyth","doi":"10.1111/1365-2745.14412","DOIUrl":"https://doi.org/10.1111/1365-2745.14412","url":null,"abstract":"<jats:list> <jats:list-item>Plant traits which vary both within and between species often drive biogeochemical cycling. Understanding the relative role of within‐ and between‐species trait variability in driving carbon cycling is essential to scaling site measurements to global carbon budgets. In seagrass meadows, carbon and nitrogen mineralization rates and associated greenhouse gas emissions are highly variable, impeding our ability to reliably predict whether meadows are net carbon sinks. Evaluating the influence of within‐ and between‐species trait variability on greenhouse gas fluxes will improve our understanding of local‐scale drivers of greenhouse gas production and consumption in seagrass meadows.</jats:list-item> <jats:list-item>To test the effects of plant traits on dissolved greenhouse gas fluxes, we performed mesocosm incubations with live, intact seagrass plants. We compared methane (CH<jats:sub>4</jats:sub>) and nitrous oxide (N<jats:sub>2</jats:sub>O) fluxes under dark and light conditions from sediments dominated by <jats:italic>Halodule wrightii</jats:italic> and <jats:italic>Thalassia testudinum</jats:italic> across dormant, early and peak growing seasons in a subtropical meadow along the west coast of peninsular Florida. We also measured oxygen (O<jats:sub>2</jats:sub>) fluxes to interpret greenhouse gas fluxes within the context of community metabolism. We measured several seagrass traits, such as above‐ and below‐ground biomass and leaf and root area and assessed their impact as well as the impact of species identity on dissolved gas fluxes.</jats:list-item> <jats:list-item>We found that abiotic factors linked to metabolism (i.e. light and temperature) influenced greenhouse gas fluxes across seasons. In addition to light conditions and sampling month, plant size (a composite trait variable) was a significant predictor of O<jats:sub>2</jats:sub> consumption and CH<jats:sub>4</jats:sub> production under dark conditions, and better predicted fluxes than individual plant traits. CH<jats:sub>4</jats:sub> production was slightly higher in <jats:italic>H. wrightii</jats:italic>‐dominated sediments, but species identity was less important than plant size in driving CH<jats:sub>4</jats:sub> production. N<jats:sub>2</jats:sub>O fluxes were low and not influenced by plant traits or species identity.</jats:list-item> <jats:list-item><jats:italic>Synthesis</jats:italic>: Our results indicate that within‐species more so than between‐species trait variability drives the direction and magnitude of CH<jats:sub>4</jats:sub> fluxes in seagrass meadows. We identified a trade‐off where seagrass biomass is often associated with enhanced sediment carbon storage, but in our study, plant size promoted CH<jats:sub>4</jats:sub> production, potentially offsetting the benefits of long‐term storage.</jats:list-item> </jats:list>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"14 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142276854","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":"Mycorrhizal fungi compromise production of endophytic alkaloids, increasing plant susceptibility to an aphid herbivore","authors":"X. Cibils-Stewart, R. K. Vandegeer, W. J. Mace, S. E. Hartley, J. R. Powell, A. J. Popay, S. N. Johnson","doi":"10.1111/1365-2745.14410","DOIUrl":"https://doi.org/10.1111/1365-2745.14410","url":null,"abstract":"&lt;h2&gt;1 INTRODUCTION&lt;/h2&gt;\u0000&lt;p&gt;Symbiosis plays a key role in plant biology affecting growth, adaptation, and speciation (Uroz et al., &lt;span&gt;2019&lt;/span&gt;). The plant and fungal kingdoms engage in symbiotic relationships such as mycorrhizae and endophytic associations, supporting nutrient uptake and stress tolerance. Fungi also play key roles in decomposition, nutrient cycling, and disease dynamics, underscoring their importance in ecosystem health and agriculture. For example, some temperate grasses within the Poaceae family, establish symbiotic associations with a myriad of microbes including asexual &lt;i&gt;Epichloë&lt;/i&gt; endophytes (Ascomycota: Clavicipitaceae) and arbuscular mycorrhizal (AM) fungi (Glomeromycotina) in shoots and roots, respectively. These symbionts often occur simultaneously and influence enemies of the plant, including herbivorous animals, via changes in plant nutritional and defensive traits (Casas et al., &lt;span&gt;2022&lt;/span&gt;; Omacini et al., &lt;span&gt;2006&lt;/span&gt;; Perez et al., &lt;span&gt;2021&lt;/span&gt;). However, predicting the impact of simultaneous symbioses on plant–herbivore interactions remains challenging since they are usually studied separately.&lt;/p&gt;\u0000&lt;p&gt;As protective mutualists, endophyte anti-herbivore defences mainly operate directly via the production of toxic alkaloids (Bastías et al., &lt;span&gt;2017&lt;/span&gt;). In terms of alkaloids, four major groups of endophyte alkaloids have been reported including ergot alkaloids, indole-diterpenes, pyrrolizidines (e.g. loline) and pyrrolopyrazines (e.g. peramine) (Berry et al., &lt;span&gt;2019&lt;/span&gt;; Schardl, Florea, et al., &lt;span&gt;2013&lt;/span&gt;; Schardl, Young, et al., &lt;span&gt;2013&lt;/span&gt;). Nonetheless, only grasses harbouring endophytes that putatively produce peramine (e.g. anti-chewing insect defences) and loline (e.g. anti-aphid and anti-chewing defences) are desirable in pastures because they confer herbivorous insect resistance without affecting grazing mammals (Young et al., &lt;span&gt;2013&lt;/span&gt;). While lolines are strongly insecticidal (i.e. toxic), peramine often acts as a potent insect-feeding deterrent (Saikkonen et al., &lt;span&gt;2016&lt;/span&gt;). Additionally, endophytes can have a detrimental effect on herbivores by stimulating the increased production of host plant defences (Bastías et al., &lt;span&gt;2017&lt;/span&gt;).&lt;/p&gt;\u0000&lt;p&gt;As nutritional mutualists, AM fungi often enhance plant nutrient supply (mainly phosphorous and nitrogen) through their highly specialized intracellular structures (i.e. arbuscules and vesicles) and their extensive hyphal networks that capture soil nutrients otherwise unavailable for plants (Lanfranco et al., &lt;span&gt;2018&lt;/span&gt;). In addition to improving plant nutritional quality, a growing number of reports suggest that AM fungi also improve host resistance to both herbivorous insects (Koricheva et al., &lt;span&gt;2009&lt;/span&gt;) and pathogens (Gernns et al., &lt;span&gt;2001&lt;/span&gt;). Specifically, for piercing-sucking aphids, AM fungi have been reported to have positive (Hartley &amp; Gange, &lt;span&gt;2009&lt;/span","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"45 1","pages":""},"PeriodicalIF":5.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142306207","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":"Water controls the divergent responses of terrestrial plant photosynthesis under nitrogen enrichment","authors":"Yicheng He,&nbsp;Yiyi Geng,&nbsp;Bing Han,&nbsp;Lina Shi,&nbsp;Xinqing Shao,&nbsp;Kesi Liu","doi":"10.1111/1365-2745.14409","DOIUrl":"10.1111/1365-2745.14409","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"112 11","pages":"2638-2651"},"PeriodicalIF":5.3,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142276892","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":"Exploring intraspecific and interspecific variation of coral reef algae using a novel trait-based framework","authors":"C. M. Cosca,&nbsp;A. Y. Kong,&nbsp;M. Z. Mar,&nbsp;I. A. Min,&nbsp;M. Lin,&nbsp;S. H. Stump,&nbsp;C. B. Zepecki,&nbsp;S. R. Grier,&nbsp;P. Fong","doi":"10.1111/1365-2745.14414","DOIUrl":"10.1111/1365-2745.14414","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"112 11","pages":"2667-2679"},"PeriodicalIF":5.3,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1365-2745.14414","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142313592","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":"Shifting seagrass-oyster interactions alter species response to ocean warming and acidification","authors":"Katherine DuBois,&nbsp;Justin H. Baumann,&nbsp;Eban J. Charles,&nbsp;Fiona G. Ralph,&nbsp;David B. Carlon","doi":"10.1111/1365-2745.14406","DOIUrl":"10.1111/1365-2745.14406","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":191,"journal":{"name":"Journal of Ecology","volume":"112 11","pages":"2552-2566"},"PeriodicalIF":5.3,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142276897","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}