Global Ecology and Biogeography最新文献

{"title":"Dispersal Limitations Restrict Predicted Climate-Driven Biodiversity Dynamics Across North America","authors":"Zhe Meng, Yue Wang, Julia A. Schap, Benjamin R. Shipley, Katherine Slenker, Heather Strathearn, Bistra Dilkina, Jenny L. McGuire","doi":"10.1111/geb.70321","DOIUrl":"10.1111/geb.70321","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Species may not fully track shifting climatic conditions when dispersal is limited, yet how species-specific dispersal constraints scale up to shape biodiversity redistribution across taxa remains unclear. We evaluated how dispersal limitation modifies projected biodiversity dynamics under climate change.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>North America.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period</h3>\u0000 \u0000 <p>Contemporary to late 21st century.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Major Taxa Studied</h3>\u0000 \u0000 <p>Terrestrial vertebrates.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We developed species distribution models for 256 terrestrial vertebrate species spanning dispersal rates from 0 to ~100 km/year. We compared climate-driven projections based on climatic suitability with projections incorporating species-specific dispersal constraints. We further assessed how dispersal capacity influences habitat accessibility and projected overlap with major land-cover categories and protected areas.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Dispersal limitation substantially altered the magnitude and spatial structure of projected biodiversity change. Climate-driven projections predicted increasing species richness and poleward range expansion, whereas dispersal-limited projections suppressed leading-edge expansion, amplified range contraction and generated extensive climatically suitable but inaccessible habitat. These effects intensified under stronger climate forcing and were most pronounced at high latitudes. Species with lower dispersal capacities experienced substantially greater mismatches between climatically suitable and accessible habitat. Dispersal limitation also altered projected landscape overlap: overlap with forests, wetlands, and protected areas increased under climate-driven projections but declined when dispersal constraints were incorporated, whereas dispersal limitation attenuated projected increases or amplified projected declines in other landscape categories.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Species-specific dispersal capacity acts as a biological filter on climate tracking, and climate-driven projections may therefore overestimate species' ability to track environmental change. These species-level constraints scale up to alter continental biodiversity redistribution and its spatial correspondence with different landscape ","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149198894","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":"Functional Diversity Shifts Across the Ediacaran Period Suggest Multiple Drivers for the Rise of Complex Animals","authors":"Matthew Craffey, Alex B. Shupinski, Simon A. F. Darroch, S. Kathleen Lyons","doi":"10.1111/geb.70318","DOIUrl":"10.1111/geb.70318","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The Ediacaran Period (~635–538.5 Ma) records the initial rise and diversification of animals. While many studies have examined the evolving structure of these early animal communities, far fewer have examined evolving function. Here, we quantify change in functional diversity (i.e., the distribution of ecological traits within assemblages) in marine benthic communities throughout the Ediacaran. These metrics allow us to identify how biotic assemblages responded to ecological, environmental, and spatial pressures to form communities.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Global.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period</h3>\u0000 \u0000 <p>575–538.5 Ma.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Major Taxa Studied</h3>\u0000 \u0000 <p>Marine macrofauna of the Ediacaran Period.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Genus occurrence and functional trait data were collected from museum collections and the primary literature. From those data, we assessed paleocommunity and global functional diversity using three indices: functional richness, evenness, and divergence, and used these to reconstruct aspects of trait variation. We then used a Jackknife approach to test how individual traits contributed to each functional diversity index. Finally, we quantified how functional beta diversity changed across the Ediacaran, testing whether spatial variation in functional diversity changed between assemblages.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We found that functional richness and divergence significantly varied between chronostratigraphic ‘assemblages’, following rises and falls in paleocommunity taxonomic richness. We find that no single trait controlled functional diversity patterns across assemblages. However, in the last assemblage of the Ediacaran, we find evidence for increased trait filtering between global and paleocommunity functional richness—a pattern which is most strongly indicated by an increase in functional beta diversity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>We interpret our results as reflecting overlapping patterns of environmental and ecological change, reducing paleo-community functional diversity across different spatial scales. Thus, the balance of pressures operating in tandem across different spatial ","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/geb.70318","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149172936","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":"FINS—A Global Occurrence Dataset of Fossil Neoselachians From the Cretaceous to the Quaternary","authors":"Kristína Kocáková, Jaime A. Villafaña, Amanda Gardiner, Gregor H. Mathes, Théophile L. Mouton, Catalina Pimiento","doi":"10.1111/geb.70315","DOIUrl":"10.1111/geb.70315","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Motivation</h3>\u0000 \u0000 <p>Modern sharks, rays and skates (Neoselachii) are a diverse, globally distributed and ecologically important group. They possess a rich, geologically extensive and well-documented fossil record that provides a powerful basis for studying their macroevolution, paleoecology and biogeography. However, addressing paleobiological questions requires quantifying the fossil record through occurrences, that is, records of the presence of a taxon from a unique location in space and time. Although the Paleobiology Database (PBDB) offers an invaluable source of fossil occurrences, it still does not provide a complete compilation of neoselachian data. To facilitate exploring questions in quantitative paleobiology, here we present the Fossil Neoselachians (FINS) dataset—a comprehensive, systematically curated global synthesis of fossil occurrences spanning the past 145 million years.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Types of Variables Contained</h3>\u0000 \u0000 <p>FINS consists of fossil occurrences, each linked to a collection (location where fossils were reported from) and a source (citation of the publication from which data were obtained). Occurrence data mostly consist of taxonomic variables (e.g., classification, names and ranks) and status (extinct/extant). Collection data provide geographic (e.g., country, ocean and palaeo-coordinates) and geological (e.g., formation and age) variables. All data were subjected to a transparent curation process, which is described through taxonomic and age validation variables.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Spatial Location and Grain</h3>\u0000 \u0000 <p>Global, with fossil occurrences recovered from all continents.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period and Grain</h3>\u0000 \u0000 <p>From the Cretaceous to the Quaternary (145–0 Ma), with temporal resolution generally corresponding to geological stages or epochs.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Major Taxa and Level of Measurement</h3>\u0000 \u0000 <p>Neoselachians (superorders: Selachimorpha and Batoidea). FINS comprises 30,047 occurrences from 5867 collections and 2055 references. It consists of 1621 species, 513 genera, 89 families and 15 orders. Over 70% of occurrences are identified at the species level. Overall, FINS effectively doubles the number of neoselachian records previously available in the PBDB and substantially expands their geographic coverage, particularly in the Global South.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 ","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/geb.70315","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149130325","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":"Spatial Synchrony at the Extremes: Tail-Dependence in Climate Drives Tail-Dependence in Birds' Spatial Synchrony Across North America","authors":"Shyamolina Ghosh, Owen L. Petchey","doi":"10.1111/geb.70319","DOIUrl":"10.1111/geb.70319","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Understanding how climatic extremes influence species synchrony is crucial for predicting biodiversity responses to global change. We test whether spatial synchrony in bird abundances exhibits “synchrony at the extremes” (tail-dependence), whereby populations synchronize more strongly during unusually low or high abundance events, and whether spatial synchrony in climatic extremes and dispersal traits explain these patterns.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>North America.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period</h3>\u0000 \u0000 <p>1979–2019.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Major Taxa Studied</h3>\u0000 \u0000 <p>Breeding birds.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We quantified spatial synchrony in bird abundance and climate (temperature and precipitation) using correlation- and tail-dependence-based approaches across sites separated by ≤ 250 km. Analyses were conducted for species monitored for ≥ 40 years (173 species), ≥ 36 years (276 species) and ≥ 32 years (328 species). We tested whether total and directional tail-dependent climatic synchrony predicted corresponding abundance synchrony using phylogenetic regression, with hand-wing index (HWI) as a proxy for dispersal ability.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Across all temporal thresholds, 45%–73% of species exhibited significant spatial synchrony, of which 44%–52% also exhibited significant tail-dependent synchrony (20%–38% of all species). In phylogenetic regression models, total tail-dependent synchrony in precipitation consistently predicted total tail-dependent synchrony in abundance across all temporal thresholds (≥ 32, ≥ 36 and ≥ 40 years), whereas total tail-dependent synchrony in temperature was a significant factor only for the ≥ 32-year dataset. These models explained up to 24% of the variation, while HWI showed little evidence of an association. Support for the climate-abundance relationship weakened when analyses were restricted to narrower spatial distance classes. Directional tail-dependent synchrony in climate and HWI showed limited support for explaining directional tail-dependent synchrony in abundance.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Our findings demonstrate that synchronized climatic extremes, particularly in precipitation, are associated with synchronized bird population extremes across large spatial scales. Incorporating tail dependence into studies ","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149130326","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":"Impacts of Species Introductions on the Trait Diversity of Interacting Avian Frugivores and Fleshy-Fruited Plants Depend on Native Trait Diversity","authors":"Larissa Nowak, Evan C. Fricke, Anna Traveset, Isabel Donoso","doi":"10.1111/geb.70314","DOIUrl":"10.1111/geb.70314","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>The introduction of non-native species to native ecological communities by humans is a major driver of global biodiversity change. Studying how species introductions influence interacting species is essential to understanding possible functional consequences of global change because biotic interactions are ecologically crucial. We explore how species introductions affect the diversity of functional traits within and between assemblages of interacting fleshy-fruited plants and frugivorous birds.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Multiple locations globally.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period</h3>\u0000 \u0000 <p>Plant-frugivore networks sampled between 1961 and 2018.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Major Taxa Studied</h3>\u0000 \u0000 <p>Fleshy-fruited plants and avian frugivores.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>For 25 frugivorous bird and 63 fleshy-fruited plant assemblages, to which non-native species were introduced, we assess differences in trait diversity and mean trait values and compare beta trait diversity with and without introduced species. We further test which factors explain differences in trait diversity with and without introduced species. To this end, we compile species' morphological traits that influence interactions between fleshy-fruited plants and frugivorous birds and related ecosystem functions.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Introduced species increased bird and plant trait diversity in assemblages with low native trait diversity but decreased it in assemblages with high native trait diversity. In bird assemblages, species introductions shifted mean values towards larger birds with wider bills and more pointed wings. In plant assemblages, mean trait values showed more variable changes. Comparisons between assemblages revealed that introduced species reduced the beta trait diversity of both frugivorous birds and fleshy-fruited plants, suggesting biotic homogenisation in terms of their functional traits.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusion</h3>\u0000 \u0000 <p>Changes in trait diversity within and between assemblages underscore that species introductions can have functional consequences for biotic interactions and related ecosystem functions, potentially influencing the functio","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/geb.70314","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087562","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":"Global Partial Beta-Diversity Coupling Among Forest Plant Growth-Form Groups","authors":"Jesús Sánchez-Dávila, Josep Padullés Cubino","doi":"10.1111/geb.70316","DOIUrl":"10.1111/geb.70316","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>Understanding how plant communities are structured across space is a central challenge in ecology and biogeography. However, plant communities are often treated as single aggregated units, potentially overlooking differences in spatial turnover among species groups defined by their characteristic growth form, such as trees, shrubs, and herbs. Here, we test whether trees, shrubs, and herbs exhibit congruent spatial patterns of composition turnover by quantifying taxonomic and functional beta-diversity coupling among these growth-form groups at the global scale.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Global.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period</h3>\u0000 \u0000 <p>Contemporary.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Taxa Studied</h3>\u0000 \u0000 <p>Vascular plants.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Using 15,263 forest vegetation plots from sPlotOpen, grouped into 288 regional clusters, we quantified taxonomic and functional dissimilarities among plots separately for trees, shrubs, and herbs. Functional dissimilarity was based on community-weighted means of five plant traits. We quantified coupling among growth-form groups using Mantel correlations and related it to macroclimate and within-cluster climatic heterogeneity using spatially cross-validated XGBoost models.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Beta-diversity coupling was predominantly positive across all growth-form comparisons, indicating partial congruence in spatial turnover among growth-form groups. Functional coupling was not stronger than taxonomic coupling, suggesting that coordinated species turnover does not necessarily translate into convergence in ecological strategies. Climatic predictors explained 11%–30% of the among-cluster variation in coupling and showed non-linear associations with temperature, precipitation, and aridity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Our global analysis shows predominantly positive but only partial congruence in taxonomic and functional compositional turnover among trees, shrubs, and herbs. Coupling varied among growth-form combinations and regions and was only modestly explained by macroclimate, suggesting that it emerges from processes operating across multiple spatial scales. These findings demonstrate the limits of treating forest plant communities as aggregated units or using one growth-form group as a general surrogate for biodiversity chang","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086879","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":"Mapping Biome Boundaries From Climate Patterns: A Machine Learning Framework","authors":"Gabriel C. Costa,&nbsp;Julián Aguirre-Santoro,&nbsp;Marcelo Gehara,&nbsp;Thiago Gonçalves-Souza,&nbsp;Fabián A. Michelangeli,&nbsp;Ana Carolina Carnaval","doi":"10.1111/geb.70317","DOIUrl":"10.1111/geb.70317","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>To develop a climate-based, probabilistic framework that maps global biomes as climatic domains and explicitly quantifies the spatial distribution and intensity of biome transition zones.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Location</h3>\u0000 \u0000 <p>Global terrestrial biomes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We trained a probabilistic machine-learning classifier linking biomes to multivariate climate space. We quantified biome ambiguity for each grid cell using Shannon entropy, identifying ecotones as regions where climate supports multiple biome outcomes, that is, high entropy. We applied the framework to present-day climate and mid-century climate projections to evaluate potential biome reorganization and ecotone shifts under climate change.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The model reproduced the broad geographic distribution of major biomes, although spatially blocked validation revealed variation in geographic transferability among biome classes. High-entropy zones form coherent transition belts that coincide with well-known ecotones, including forest–savanna boundaries, desert margins, temperate forest–grassland transitions, and the boreal–tundra interface. Biome core regions show low entropy, whereas ecotones exhibit diffuse probability structure and heightened sensitivity to climatic variation. Projections of the model under mid-century climatic conditions (2041–2060) identify spatially structured patterns of biome transitions, particularly shifts from tundra to boreal forest and from boreal to temperate systems, while also highlighting regions where uncertainty and model disagreement are greatest.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Conclusions</h3>\u0000 \u0000 <p>Mapping biomes in climate-probability space reframes biome boundaries as spatially extended, permeable zones shaped by overlapping climatic regimes. By combining probabilistic classification with entropy-based uncertainty quantification, our framework complements traditional biome maps by revealing the gradient structure and stability of biome transitions and by identifying where climatic change is most likely to drive ecological reorganization. The resulting transition and uncertainty surfaces offer globally comparable spatial layers for macroecology, biogeography, and evolutionary research, including studies linking ecotones to biodiversity patterns, trait turnover, and lineage diversification.</p>\u0000 </section>\u0000 </div>","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086708","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":"Global Warming, Local Responses: Why Treelines Do Not Respond Uniformly to Climate Change in the French Pyrenees","authors":"Thierry Feuillet,&nbsp;Pablo Moreno-Garcia,&nbsp;Déborah Birre,&nbsp;Léa Keurinck,&nbsp;Johan Milian,&nbsp;Roberto Serrano-Notivoli,&nbsp;Matthieu Vignal,&nbsp;Maxime Cauchoix,&nbsp;Steve Hagimont,&nbsp;Olivier Theureaux,&nbsp;David Sheeren,&nbsp;Xavier Morin,&nbsp;Luc Barbaro","doi":"10.1111/geb.70311","DOIUrl":"10.1111/geb.70311","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Aim&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Treeline ecotones are key indicators of environmental change, yet their responses to climate warming vary markedly across landscapes. This study investigates how elevation and local environmental contexts moderate warming effects on treeline dynamics.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Location&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;French Pyrenees.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Time Period&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;1950s to 2015.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Major Taxa Studied&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Montane and alpine treeline ecotones are dominated, respectively, by &lt;i&gt;Fagus sylvatica&lt;/i&gt; and &lt;i&gt;Pinus uncinata&lt;/i&gt;.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;We analysed 626 treelines using two metrics of long-term ecotone dynamics: elevational shift and forest infilling. We tested three hypotheses: (i) whether elevation moderates warming effects on treeline dynamics; (ii) whether treeline responses remain spatially heterogeneous within elevational zones; and (iii) whether local environmental factors explain this heterogeneity. Climate change was quantified as absolute maximum temperature change (Δ&lt;i&gt;T&lt;/i&gt;&lt;sub&gt;max&lt;/sub&gt;) between 1950–1984 and 1985–2020. Sites were objectively stratified into montane treeline ecotones (MTE; &lt; 1942 m) and alpine treeline ecotones (ATE; ≥ 1942 m).&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Elevation strongly moderated climate change effects, with (i) montane treelines showing larger elevational shifts but weaker relationships with warming, likely reflecting forest rebound following pastoral abandonment, while (ii) alpine treelines showed smaller shifts but stronger warming relationships, likely constrained by slow demographic processes near tree physiological limits. We also found support for spatial heterogeneity persistence within both montane and alpine belts. Local environmental factors largely explained this heterogeneity, with well-drained, steep sites exhibiting positive warming responses and poorly-drained sites and crystalline substrates showing negative or neutral responses.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Main Conclusions&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Treeline responses to warming are context-dependent, with local environmental conditions moderating and even reversing climate effects. The spatial heterogeneity observed reconciles apparently contradictory p","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/geb.70311","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149078072","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":"NemEu: European Database on Nematode Communities at Genus or Family Level","authors":"Doina Thais Constance Mani,&nbsp;Carmen Vazquez,&nbsp;Rachel Creamer,&nbsp;Stefan Geisen,&nbsp;Raquel Campos Herrera,&nbsp;Andrea Čerevková,&nbsp;Simone Cesarz,&nbsp;Marcel Ciobanu,&nbsp;Sofia R. Costa,&nbsp;Marie Dam,&nbsp;Ron de Goede,&nbsp;Nico Eisenhauer,&nbsp;Louise Jackson,&nbsp;Daria Sergeevna Kalinkina,&nbsp;Alexey Kudrin,&nbsp;Elizaveta Matveeva,&nbsp;Juha Mikola,&nbsp;Christian Mulder,&nbsp;Peter Nagy,&nbsp;Branimir Njezic,&nbsp;Juan Emilio Palomares-Rius,&nbsp;Vlada Penava,&nbsp;Iuliana Popovici,&nbsp;Liliane Ruess,&nbsp;Sara Sánchez-Moreno,&nbsp;Marie Sünnemann,&nbsp;Anna Sushchuk,&nbsp;Mette Vestergård,&nbsp;Cécile Villenave,&nbsp;Lieven Waeyenberge,&nbsp;Vera Leatitia Mulder","doi":"10.1111/geb.70312","DOIUrl":"10.1111/geb.70312","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Motivation</h3>\u0000 \u0000 <p>Soil communities are highly diverse. Due to a lack of spatially attributed data, our understanding of the geographical distribution of soil biodiversity across Europe and the factors driving this distribution remains limited. The NemEu database aims to fill this gap by providing nematode community data at genus or family level across Europe. This level of taxonomic resolution facilitates the discovery of nematode distribution patterns beyond feeding-group level, as well as the calculation of nematode-based indices of soil food-web dynamics.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Main Types of Variable Contained</h3>\u0000 \u0000 <p>The dataset contains nematode abundance data classified by taxon, along with associated metadata: geographic coordinates, sampling date and season, soil depth, land use type, and site descriptors.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Spatial Location and Grain</h3>\u0000 \u0000 <p>The NemEu database encompasses 1567 unique European locations, primarily concentrated in western Europe, spanning latitudes from southern Portugal to the Ural Mountains. The precision of the coordinates varies from approximately 11 km to 0.01 m.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Time Period and Grain</h3>\u0000 \u0000 <p>Sampling spans from 1975 to 2020, where 90% of locations were sampled between 1999 and 2020. The season of sampling is recorded for all locations, and the year for all but two. Sampling month and day are available for 76% and 60% of locations, respectively.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Major Taxa and Level of Measurement</h3>\u0000 \u0000 <p>A total of 276 nematode taxa were recorded, of which 56 families and 220 genera.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Software Format</h3>\u0000 \u0000 <p>.csv.</p>\u0000 </section>\u0000 </div>","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/geb.70312","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149078074","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":"Environmental Factors Have a Stronger Influence on the Coral Holobiont in Comparison to Geographic Distance Along a 15,000-km East-to-West Transect Through the Coral Triangle, Pacific and Indian Oceans","authors":"Rhys A. Thomas,&nbsp;Anderson Mayfield,&nbsp;Onny N. Marwayana,&nbsp;Irma S. Arlyza,&nbsp;Benjamin J. Wainwright","doi":"10.1111/geb.70305","DOIUrl":"10.1111/geb.70305","url":null,"abstract":"&lt;div&gt;\u0000 \u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Aim&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;To determine the factors that structure coral-associated microbial communities (bacteria and Symbiodiniaceae). These microbial communities play critical roles in reef ecosystem function, yet the relative importance of environmental versus geographic drivers in structuring these communities across large spatial scales remains poorly understood, particularly across broad Indo-Pacific gradients that include biodiversity hotspots such as the Coral Triangle.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Location&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Coral reefs across a ~15,000-km east-to-west transect encompassing the Indian Ocean, Coral Triangle and South Pacific Ocean.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Time Period&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Present day.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Major Taxa Studied&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Coral host: &lt;i&gt;Pocillopora acuta&lt;/i&gt; and its hosted Symbionts—Bacteria (16S rRNA gene) and Symbiodiniaceae (ITS2 region).&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Methods&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;A total of 432 samples were collected, sequenced and processed to determine the composition of the hosted bacterial and Symbiodiniaceae communities. Biogeographic structuring and environmental associations were determined using alpha and beta diversity metrics, Mantel tests, distance-based community dissimilarity and redundancy analysis.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Results&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Significant differences in community composition and structure were detected between regions. Bacterial alpha diversity was relatively even across regions; however, community composition showed strong spatial turnover with a shift in bacterial and Symbiodiniaceae communities observed across the environmental gradient. Cooler Pacific reefs are characterized by &lt;i&gt;Endozoicomonas-&lt;/i&gt;dominated bacterial communities and &lt;i&gt;Cladocopium&lt;/i&gt;-dominated Symbiodiniaceae communities. In contrast, the warmer reefs of the Coral Triangle and western Indo-Pacific have a higher abundance of opportunistic bacterial taxa, including &lt;i&gt;Pseudoalteromonas&lt;/i&gt;, with Symbiodinaceae communities dominated by Durusdinium.&lt;/p&gt;\u0000 &lt;/section&gt;\u0000 \u0000 &lt;section&gt;\u0000 \u0000 &lt;h3&gt; Main Conclusion&lt;/h3&gt;\u0000 \u0000 &lt;p&gt;Bacterial and Symbiodiniaceae communities hosted by the coral &lt;i&gt;P. acuta&lt;/i&gt; are structured primarily by environmental filtering, not by geographic distance. With communities primarily appea","PeriodicalId":176,"journal":{"name":"Global Ecology and Biogeography","volume":"35 10","pages":""},"PeriodicalIF":6.5,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/geb.70305","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149078073","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}