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Continental scale metagenomics reveals Microcystis-induced synchrony among aquatic taxa is exacerbated by trophic cascades 大陆尺度宏基因组学显示微囊藻诱导的水生类群同步被营养级联加剧
IF 5.3 1区 环境科学与生态学
Ecography Pub Date : 2026-10-06 Epub Date: 2026-08-07 DOI: 10.1002/ecog.08608
Lemian Liu, Siqi Zhu, Xiaoqin Huang, Wenjia Hu, Lixiang Luo, Xiusong Pan, Jianfeng Chen
{"title":"Continental scale metagenomics reveals Microcystis-induced synchrony among aquatic taxa is exacerbated by trophic cascades","authors":"Lemian Liu,&nbsp;Siqi Zhu,&nbsp;Xiaoqin Huang,&nbsp;Wenjia Hu,&nbsp;Lixiang Luo,&nbsp;Xiusong Pan,&nbsp;Jianfeng Chen","doi":"10.1002/ecog.08608","DOIUrl":"10.1002/ecog.08608","url":null,"abstract":"<p>Harmful <i>Microcystis</i> proliferation severely threatens aquatic ecosystems globally, but its impacts on food-web stability remain poorly understood. Here, we analyzed 1309 metagenomic samples from freshwater ecosystems across China to investigate how <i>Microcystis</i> abundance affects synchrony among taxa in multi-trophic food webs (from bacteriophages to piscivorous fish). We found that <i>Microcystis</i> abundance was significantly positively correlated with anthropogenic factors (e.g. GDP, population density, nitrogen and phosphorus emissions), and its proliferation was strongly associated with increased synchrony among aquatic taxa. In contrast, other aquatic taxa (e.g. fish, zooplankton and bacteria) showed no such effects on synchrony. The enhanced synchrony associated with <i>Microcystis</i> proliferation occurred more frequently between consumers and their food resources than among aquatic taxa lacking consumer–resource relationships. Moreover, trophic cascades were more strongly correlated with these synchrony dynamics at middle and high trophic levels, whereas synchrony at low trophic levels was mainly directly affected by <i>Microcystis</i>. Overall, our results reveal that synchrony among aquatic taxa is strongly dependent on trophic linkages. This study provides a pioneering framework for integrating large-scale metagenomic datasets to improve our understanding of food webs dynamics under <i>Microcystis</i> proliferation pressure across a broad taxonomic range.</p>","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"2026 10","pages":""},"PeriodicalIF":5.3,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecog.08608","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148687883","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}
引用次数: 0
Global distribution of avian plumage coloration and patterning: the relative influence of climate, ecology, and sexual selection 鸟类羽毛颜色和图案的全球分布:气候、生态和性选择的相对影响
IF 5.3 1区 环境科学与生态学
Ecography Pub Date : 2026-10-06 Epub Date: 2026-08-10 DOI: 10.1002/ecog.08536
Yuqing Han, Ying Zeng, Tien Ming Lee, Long Wang, Chen Zeng, Pengfei Fan, Çağan H. Şekercioğlu, Weini Huang, Yang Liu
{"title":"Global distribution of avian plumage coloration and patterning: the relative influence of climate, ecology, and sexual selection","authors":"Yuqing Han,&nbsp;Ying Zeng,&nbsp;Tien Ming Lee,&nbsp;Long Wang,&nbsp;Chen Zeng,&nbsp;Pengfei Fan,&nbsp;Çağan H. Şekercioğlu,&nbsp;Weini Huang,&nbsp;Yang Liu","doi":"10.1002/ecog.08536","DOIUrl":"10.1002/ecog.08536","url":null,"abstract":"<p>Animal coloration exhibits substantial biogeographic variation, reflecting complex adaptations to both abiotic and biotic environments. Although the evolutionary mechanisms underlying avian plumage coloration have been widely studied, geographic variation in plumage patterning has received far less attention. To extend our understanding of avian plumage evolution, we quantified global plumage coloration and patterning across 10 290 bird species using an extensive red-green-blue (RGB) dataset derived from illustrations in the Handbook of the Birds of the World. To test ecogeographical predictions, we modeled variation in plumage lightness, blue–yellow chromaticity, and pattern granularity using phylogenetic mixed models and path analyses. Our analyses revealed pronounced geographic heterogeneity in both plumage coloration and patterning. Variation in plumage lightness followed broad climatic gradients, and darker coloration was associated with humid and colder environments, consistent with the combined predictions of Gloger's rule (darker in warm, humid areas) and Bogert's rule (darker in cold areas). These rules are not contradictory but coexist; their relative influence is determined by whether humidity or temperature is the dominant selective force in a given region. While resident species in cold environments largely supported Bogert's rule for thermoregulation, migratory species and proficient fliers (e.g. gulls) deviated from this pattern by maintaining lighter plumage to avoid overheating during flight. Furthermore, we identified a strong latitudinal gradient along the blue–yellow axis: tropical humidity promotes carotenoid-rich yellow plumage through dietary shifts, whereas higher latitudes favor structural blue hues. Patterning also showed large-scale structure, with larger pattern elements linked to humid environments and larger body sizes rather than to specific foraging habitats. By integrating classical ecological rules with the thermoregulation hypothesis, our study provides a unified framework explaining how climatic constraints and ecological processes interact to shape the global distribution of avian coloration patterns.</p>","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"2026 10","pages":""},"PeriodicalIF":5.3,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecog.08536","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148717612","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}
引用次数: 0
Rising, falling, stalling: complex biodiversity trajectories in English rivers 上升、下降、停滞:英国河流中复杂的生物多样性轨迹
IF 5.3 1区 环境科学与生态学
Ecography Pub Date : 2026-10-06 Epub Date: 2026-09-21 DOI: 10.1002/ecog.08573
Mansi Mungee, Martin Wilkes, Vicky A. Bell, William E. Kunin, Christopher Hassall, Lee E. Brown
{"title":"Rising, falling, stalling: complex biodiversity trajectories in English rivers","authors":"Mansi Mungee,&nbsp;Martin Wilkes,&nbsp;Vicky A. Bell,&nbsp;William E. Kunin,&nbsp;Christopher Hassall,&nbsp;Lee E. Brown","doi":"10.1002/ecog.08573","DOIUrl":"10.1002/ecog.08573","url":null,"abstract":"<p>Freshwater ecosystems face intense anthropogenic pressures. Yet in parts of Europe, including the UK, studies have documented widespread increases in macroinvertebrate diversity following investments to improve water quality. More recent analyses, however, suggest that these gains have slowed, plateaued, or even reversed. Despite increasing recognition that biodiversity trajectories vary substantially among locations, the majority of analyses are still based on spatially aggregated data which mask important local heterogeneity, complicating interpretation of national-scale trends. Consequently, the mechanisms of local biodiversity dynamics remain poorly resolved. We address this gap using macroinvertebrate time-series data from 803 sites in England's Environment Agency monitoring network. We used an unsupervised clustering approach to group sites with similar temporal trajectories for three community-level metrics: pollution sensitivity (average score per taxon, ASPT), richness, and abundance. We then compared the environmental characteristics and community composition of these groups to identify the factors most strongly associated with different trajectories. Our analyses reveal substantial heterogeneity in temporal trajectories: more than half of the sites (~ 53%) exhibited declining or non-directional trajectories in at least one of the three metrics. Sites that exhibited increases in ASPT and/or richness were strongly associated with a lower distance from source, higher oxygen availability, and lower nutrient concentrations. In contrast, declines were more common in downstream sites with finer sediments and elevated nutrient and pollutant loads. Further, trends varied far more among individual sites than among larger aggregated regions such as catchment or water bodies. Collectively, our findings show that macroinvertebrate community dynamics are a mosaic of non-linear, site-specific trajectories. This reflects the combined influence of multiple processes, likely including species interactions and dispersal dynamics, operating across scales. A stronger mechanistic understanding of these processes is therefore essential for improving river management and conservation strategies, complementing existing catchment- and waterbody-scale management with greater recognition of site-level ecological heterogeneity.</p>","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"2026 10","pages":""},"PeriodicalIF":5.3,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecog.08573","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149020001","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}
引用次数: 0
Biotic and abiotic drivers of ecosystem functioning differ between a temperate and a tropical region 在温带和热带地区,生态系统功能的生物和非生物驱动因素不同
IF 5.9 1区 环境科学与生态学
Ecography Pub Date : 2026-10-06 DOI: 10.1002/ecog.08108
Laura J. A. van Dijk, Andreia Miraldo, Dimby Raharinjanahary, Eric Tsiriniaina Rajoelison, Brian L. Fisher, Robert M. Goodsell, Elzbieta Iwaszkiewicz‐Eggebrecht, David Åhlén, Johanna Högvall, Erika Lundberg, Emma Rova, Piotr Łukasik, Fredrik Ronquist, Tomas Roslin, Ayco J. M. Tack
{"title":"Biotic and abiotic drivers of ecosystem functioning differ between a temperate and a tropical region","authors":"Laura J. A. van Dijk, Andreia Miraldo, Dimby Raharinjanahary, Eric Tsiriniaina Rajoelison, Brian L. Fisher, Robert M. Goodsell, Elzbieta Iwaszkiewicz‐Eggebrecht, David Åhlén, Johanna Högvall, Erika Lundberg, Emma Rova, Piotr Łukasik, Fredrik Ronquist, Tomas Roslin, Ayco J. M. Tack","doi":"10.1002/ecog.08108","DOIUrl":"https://doi.org/10.1002/ecog.08108","url":null,"abstract":"Any single ecosystem will provide many ecosystem functions. Yet, we lack large‐scale, systematic studies of how abiotic factors can directly or indirectly – via effects on biodiversity – drive ecosystem functioning. In this study, we assessed the impact of climate, landscape and biotic community on ecosystem functioning in the temperate and tropical zone, with potential trade‐offs among ecosystem functions in both zones. To this aim, we measured a diverse set of insect‐related functions – including herbivory, seed dispersal, predation, decomposition and pollination – at 50 sites across Madagascar and 171 sites across Sweden, while characterizing the insect community at each site. For the temperate zone, we found that abiotic factors were most important in driving ecosystem functioning, while in the tropical zone, effects of biotic drivers were most pronounced. In the temperate zone, most functions were uncorrelated, but in the tropical zone, most ecosystem functions increased in concert. Our study suggests that the functioning of temperate and tropical ecosystems differs fundamentally in terms of patterns and drivers. To identify global patterns and drivers of ecosystem functioning, and to predict future ecosystem functioning, we next need further replication across biomes.","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"20 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087452","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}
引用次数: 0
Spatial variation and predictors of plant species' intrinsic climate sensitivity across the conterminous United States 美国相邻地区植物物种内在气候敏感性的空间变异与预测因子
IF 5.9 1区 环境科学与生态学
Ecography Pub Date : 2026-10-06 DOI: 10.1002/ecog.08894
Weiqing Qu, Ayla J. Skorupa, Jeffrey W. Matthews, Suneeti K. Jog, Jason T. Bried
{"title":"Spatial variation and predictors of plant species' intrinsic climate sensitivity across the conterminous United States","authors":"Weiqing Qu, Ayla J. Skorupa, Jeffrey W. Matthews, Suneeti K. Jog, Jason T. Bried","doi":"10.1002/ecog.08894","DOIUrl":"https://doi.org/10.1002/ecog.08894","url":null,"abstract":"Understanding how species' sensitivity to climate varies spatially across their ranges and elucidating the important causes is essential for identifying ecologically meaningful geographic units and conservation actions for biodiversity. In this study, we estimated climatic occurrence niches of vascular plants to explore the spatial variation in species' intrinsic climate sensitivity across the conterminous United States. Specifically, we asked if species sensitivity varies more between than within Climate Adaptation Science Center (CASC) regions, delineated according to relative climatic consistency and geopolitical boundaries. We further tested latitude, topographic complexity, and glacial history as potential predictors of intrinsic climate sensitivity, expecting them to jointly explain variation. Sensitivity varied more between than within CASC regions for shared species pools, suggesting the CASC network captures biologically relevant patterns of climate vulnerability. Correlations of sensitivity were strongest among adjacent or latitudinally similar regions, while distant regions showed weaker relationships. Permutation network tests and linear mixed‐effects models further revealed overall regionally structured sensitivity patterns and significant differences in mean sensitivity among CASC regions. Intrinsic climate sensitivity trended lower in higher‐latitude regions characterized by greater topographic complexity and post‐glacial coverage. Together, these findings suggest that historical legacies and regional environmental context shape the large‐scale spatial patterns of species' intrinsic climate sensitivity, and that climatically defined spatial units may provide a useful framework for regionalized biodiversity conservation under climate change.","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"32 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087454","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}
引用次数: 0
Latitudinal effect on the structure of snake–prey interaction networks is mediated by snake species richness 蛇-猎物相互作用网络结构的纬向效应是由蛇种丰富度介导的
IF 5.3 1区 环境科学与生态学
Ecography Pub Date : 2026-10-06 Epub Date: 2026-07-09 DOI: 10.1002/ecog.08300
Daniela Pinto-Coelho, Kate P. Maia, Laura R. V. Alencar, Marcio Martins, Paulo R. Guimarães
{"title":"Latitudinal effect on the structure of snake–prey interaction networks is mediated by snake species richness","authors":"Daniela Pinto-Coelho,&nbsp;Kate P. Maia,&nbsp;Laura R. V. Alencar,&nbsp;Marcio Martins,&nbsp;Paulo R. Guimarães","doi":"10.1002/ecog.08300","DOIUrl":"10.1002/ecog.08300","url":null,"abstract":"<p>Despite the growing number of studies on trophic networks in recent decades, there are still important gaps in our understanding of how these networks are structured across broad environmental gradients. These gaps are even greater in some groups of terrestrial vertebrates, such as snakes, requiring a cohesive synthesis of their broader trophic interaction patterns. Snakes are widely distributed and inhabit diverse environments, being important predators of terrestrial, aquatic, fossorial, and even marine fauna. Their prey varies widely taxonomically and in body size, and their diets range from highly specialized to highly generalized. Here, we evaluate how latitude affects the structure of 46 broadly distributed snake–prey networks, through factors acting at the local community scale (snake species richness, taxonomic distinctness, and body mass) using path analysis. We expected that the greater snake richness in the tropics would favor specialization, resulting in less connected, more specialized, more nested, and more modular networks compared to those in temperate regions. We also investigated the differential importance of prey groups in the structure of snake communities. Our results showed that, generally, snake–prey networks were moderately connected, nested, and non-modular. Snake richness and body mass variance were negatively associated with latitude, and richness was also negatively related to connectance and specialization, but positively related to nestedness. Networks in tropical regions comprised greater richness and body size variation among the snakes but also exhibited proportionally fewer interactions per species (i.e. lower connectance) and greater niche overlap among specialist and generalist snakes. Anurans, lizards, songbirds, and small mammals were the most consumed prey in all networks. Our results indicate that despite the great variation in snake richness and resource use, network patterns were generally consistent, suggesting that latitude exerted an indirect effect on the structure of snake–prey networks, which could represent stable community components worldwide.</p>","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"2026 10","pages":""},"PeriodicalIF":5.3,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecog.08300","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148408889","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}
引用次数: 0
Combining paleoecology and modeling to explore cascading disturbances in forest ecosystems 结合古生态学和模型研究森林生态系统的级联扰动
IF 5.3 1区 环境科学与生态学
Ecography Pub Date : 2026-10-06 Epub Date: 2026-07-28 DOI: 10.1002/ecog.08722
Cécile C. Remy, Matthew D. Hurteau, Sarah Le Berre, Dominik Thom, Rupert Seidl, Laurent Millet, Damien Rius
{"title":"Combining paleoecology and modeling to explore cascading disturbances in forest ecosystems","authors":"Cécile C. Remy,&nbsp;Matthew D. Hurteau,&nbsp;Sarah Le Berre,&nbsp;Dominik Thom,&nbsp;Rupert Seidl,&nbsp;Laurent Millet,&nbsp;Damien Rius","doi":"10.1002/ecog.08722","DOIUrl":"10.1002/ecog.08722","url":null,"abstract":"<p>Climate-induced cascading disturbance interactions pose a major challenge to the sustainable provision of forest ecosystem services to society. Developing a deeper understanding and enhanced capacity to simulate these interactions is essential for identifying disturbance-induced tipping points in forest ecosystems, and for improving management in response to such changes. This forum paper highlights opportunities to anticipate future forest disturbance trajectories by integrating paleoecology and modeling. Recent advances in forest landscape models (FLMs) and in the paleoecology of disturbances provide novel opportunities for hindcast simulations that account for multiple interacting disturbances. FLM simulations informed by paleoecological reconstructions could be mutually beneficial for both the modeling and paleoecological research communities. This integrative approach would enable the testing of previously unexplored causal hypotheses to explain discrepancies between reconstructed and simulated vegetation trajectories, while also evaluating model performance across long temporal scales and under changing climatic conditions. To integrate paleoecological data into FLMs, priority should be given to multi-proxy paleoecological reconstructions across multiple forest ecosystems to generate the data needed to inform and refine models. These new research avenues may advance projections of ecosystem change, thereby strengthening the scientific basis for guiding adaptive forest policy and management.</p>","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"2026 10","pages":""},"PeriodicalIF":5.3,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ecog.08722","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148633949","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}
引用次数: 0
Scale‐dependent assembly shapes taxon‐dependent responses of soil microbes to island isolation and area 尺度依赖组合决定了土壤微生物对岛屿隔离和面积的分类依赖反应
IF 5.9 1区 环境科学与生态学
Ecography Pub Date : 2026-10-01 DOI: 10.1002/ecog.08673
Lan Liu, Zuzana Münzbergová, Lele Jiang, Long Chen, Shurong Zhou
{"title":"Scale‐dependent assembly shapes taxon‐dependent responses of soil microbes to island isolation and area","authors":"Lan Liu, Zuzana Münzbergová, Lele Jiang, Long Chen, Shurong Zhou","doi":"10.1002/ecog.08673","DOIUrl":"https://doi.org/10.1002/ecog.08673","url":null,"abstract":"The theory of island biogeography (TIB) remains contentious for microbes, as their immense dispersal potential and microscopic size may decouple diversity from classic isolation/area effects. We explicitly tested TIB scaling rules for soil bacteria and fungi across 20 oceanic islands using a rigorous multi‐scale framework that integrated high‐resolution ASV analysis, coverage‐based diversity estimation, and phylogenetic null models. We found that geographic isolation emerged as the predominant driver of microbial diversity, yielding consistent negative species–solation relationships (SIRs, where species richness decreases with isolation) across scales and most taxonomic groups, reflecting pervasive dispersal limitation. In contrast, species–area relationships (SARs, where species richness increases with area) at the island scale were largely attributable to sampling intensity. After standardizing sampling effort and integrating local‐scale (mean plot ASV richness) analyses, significant positive SARs disappeared for all groups except arbuscular mycorrhizal fungi. This pattern reflects the unique ecological dependence of arbuscular mycorrhizal fungi on host‐mediated environmental heterogeneity. Community assembly analyses using iCAMP and variation partitioning consistently revealed that while dispersal limitation dominated community assembly (62.1–81.5% of the variation), homogeneous selection intensified on more isolated islands for most microbes. As island area increased, environmental filtering was relaxed, yet spatial assembly processes diverged: dispersal limitation intensified for most fungi, whereas homogeneous selection became more prominent for most bacteria. These results demonstrate that geographic isolation drives microbial diversity, yet its effects are scale‐dependent and taxon‐specific. These findings highlight the need to incorporate scale‐ and lineage‐specific assembly processes into TIB for microbial community.","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"13 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086106","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}
引用次数: 0
Associations between mycorrhizal dominance and woody species diversity shift with stand development and climate across subtropical and tropical forests in Taiwan 台湾亚热带和热带森林菌根优势与木本物种多样性随林分发展和气候变化的关系
IF 5.9 1区 环境科学与生态学
Ecography Pub Date : 2026-09-28 DOI: 10.1002/ecog.08641
Albert Vilà‐Cabrera, Julen Astigarraga, Kirsten S.W. O'Sullivan, Karina E. Clemmensen, Henna Tyyskä, Sarah Greenwood, Josep Padullés Cubino, Jan‐Chang Chen, Alistair S. Jump
{"title":"Associations between mycorrhizal dominance and woody species diversity shift with stand development and climate across subtropical and tropical forests in Taiwan","authors":"Albert Vilà‐Cabrera, Julen Astigarraga, Kirsten S.W. O'Sullivan, Karina E. Clemmensen, Henna Tyyskä, Sarah Greenwood, Josep Padullés Cubino, Jan‐Chang Chen, Alistair S. Jump","doi":"10.1002/ecog.08641","DOIUrl":"https://doi.org/10.1002/ecog.08641","url":null,"abstract":"Mycorrhizal symbioses influence woody species diversity, but whether this association shifts with forest stand development remains underexplored. Using forest inventory data across subtropical and tropical forests in Taiwan, we found that woody species diversity was lower in ectomycorrhizal (EM)‐dominated than in arbuscular mycorrhizal (AM)‐dominated forests, while forests with mixed mycorrhizal strategies supported the highest woody species diversity. However, these associations were strongest in early development stands and tended to converge towards high diversity in late development stands despite differences in mycorrhizal dominance. These results are consistent with stronger conspecific negative density dependence in AM‐dominated forests and niche partitioning among mycorrhizal strategies at early developmental stages, while alternative recruitment dynamics associated with AM‐ and EM‐dominated canopies may promote high woody species diversity at late developmental stages. Climate modulated these patterns, with the negative association between EM dominance and woody species diversity strongest in cold regions, while the diversity peak in mixed AM–EM forests was most pronounced in median climates and diminished towards warm and cold climates. In addition, woody species evenness was more consistently highest in forests with mixed mycorrhizal strategies across stand development stages compared to woody species richness, suggesting that mycorrhizal coexistence promotes more equal species abundances. These findings highlight that associations between mycorrhizal strategies and woody species diversity depend on forest developmental stage, underpinning new understanding of subtropical and tropical forest recovery under global change.","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"68 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149086137","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}
引用次数: 0
Taxon‐dependent multisite species turnover in fragmented habitats: comparing zeta diversity across birds, butterflies, and cursorial hunting spiders 碎片化栖息地中依赖分类单元的多点物种更替:比较鸟类、蝴蝶和游猎蜘蛛的zeta多样性
IF 5.9 1区 环境科学与生态学
Ecography Pub Date : 2026-09-24 DOI: 10.1002/ecog.08659
Shirui Yu, Yufeng Zhou, Qiyu Jiang, Jie Xie, Yan Wang, Qiwen Du, Shang Sheng, Yaqian Cui, Kai Zhang, Zhixin Wen, Hao Yu, Yu Xu
{"title":"Taxon‐dependent multisite species turnover in fragmented habitats: comparing zeta diversity across birds, butterflies, and cursorial hunting spiders","authors":"Shirui Yu, Yufeng Zhou, Qiyu Jiang, Jie Xie, Yan Wang, Qiwen Du, Shang Sheng, Yaqian Cui, Kai Zhang, Zhixin Wen, Hao Yu, Yu Xu","doi":"10.1002/ecog.08659","DOIUrl":"https://doi.org/10.1002/ecog.08659","url":null,"abstract":"Habitat fragmentation alters species diversity and reshapes community composition. However, conventional pairwise approaches to compositional variation (i.e. beta diversity metrics) do not explicitly characterize how species sharing or turnover change with the number of habitat patches. In addition, cross‐taxon differences associated with variation in dispersal abilities and habitat requirements remain underexplored. Here, we examined zeta diversity, which quantifies species sharing and compositional turnover with an increasing number of patches (i.e. zeta order), for three taxa (i.e. birds, butterflies, and cursorial hunting spiders) in a fragmented urban landscape, based on survey data comprising 83 bird, 126 butterfly, and 79 spider species recorded across 30 remnant woodlot patches between 2017 and 2026. Birds showed a greater proportion of species occupying many patches than butterflies and spiders. Shared species declined with zeta order across all taxa, with steeper declines in butterflies and spiders at lower orders. As the order increased, shared species became increasingly likely to be retained across additional patches, particularly for birds. The explanatory variance of environmental factors in species turnover increased with order, particularly for birds, in which turnover was primarily driven by interpatch distance and two habitat composition factors (i.e. the proportions of woodlands and wetlands) across orders. Interpatch distance also appeared to be an important predictor for spiders, but not for butterflies. For both invertebrate groups, however, various other landscape and habitat characteristics influenced turnover, depending on zeta order. The findings suggest that patterns of species turnover in fragmented habitats are taxon‐ and order‐dependent, likely reflecting changes in the relative contribution of rare versus widespread species due to differences in their dispersal abilities and habitat requirements. Our study highlights the need for taxon‐ and order‐specific conservation strategies, such as maintaining habitat heterogeneity and improving landscape connectivity, to promote metacommunity persistence in fragmented habitats.","PeriodicalId":51026,"journal":{"name":"Ecography","volume":"46 1","pages":""},"PeriodicalIF":5.9,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149048686","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}
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