Debit Datta, Samantha J. Worthy, Jun-Yan Liu, Zheng Zheng, Min Cao, Jie Yang, Nathan G. Swenson
{"title":"Cavities and the Demographic Performance of Tropical Rainforest Trees","authors":"Debit Datta, Samantha J. Worthy, Jun-Yan Liu, Zheng Zheng, Min Cao, Jie Yang, Nathan G. Swenson","doi":"10.1111/ele.70091","DOIUrl":"10.1111/ele.70091","url":null,"abstract":"<p>In tropical forests, trees often have damage in the form of visible cavities. However, the impacts of these cavities on tropical tree growth and survival are unknown, despite potential implications for the global carbon cycle. Here, we integrate 10 years of forest dynamics data with a survey of cavity presence on 25,450 rainforest trees (> 5 cm in diameter) in the 20 ha Xishuangbanna plot in southern China. We found that cavities negatively impacted tree growth, but not survival, with the growth of smaller trees more negatively affected by cavities. Variation in the impact of cavities was not explained by functional traits related to species life history strategy (specific leaf area, wood density, seed mass, leaf %N, leaf %P). These results suggest that cavities may affect both the compositional and carbon dynamics of tropical forests, but further research is needed to determine what drives variation amongst tree species in cavity impact.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 3","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143618924","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}
Maxime Fajgenblat, Robby Wijns, Geert De Knijf, Robby Stoks, Pieter Lemmens, Marc Herremans, Pieter Vanormelingen, Thomas Neyens, Luc De Meester
{"title":"Leveraging Massive Opportunistically Collected Datasets to Study Species Communities in Space and Time","authors":"Maxime Fajgenblat, Robby Wijns, Geert De Knijf, Robby Stoks, Pieter Lemmens, Marc Herremans, Pieter Vanormelingen, Thomas Neyens, Luc De Meester","doi":"10.1111/ele.70094","DOIUrl":"10.1111/ele.70094","url":null,"abstract":"<p>Online portals have facilitated collecting extensive biodiversity data by naturalists, offering unprecedented coverage and resolution in space and time. Despite being the most widely available class of biodiversity data, opportunistically collected records have remained largely inaccessible to community ecologists since the imperfect and highly heterogeneous detection process can severely bias inference. We present a novel statistical approach that leverages these datasets by embedding a spatiotemporal joint species distribution model within a flexible site-occupancy framework. Our model addresses variable detection probabilities across visits and species by modelling phenological patterns and by extending the use of latent variables to characterise observer-specific detection and reporting behaviour. We apply our model to an opportunistically collected dataset on lentic odonates, encompassing over 100,000 waterbody visits in Flanders (N-Belgium), to show that the model provides insights into biological communities at high resolution, including phenology, interannual trends, environmental associations and spatiotemporal co-distributional patterns in community composition.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 3","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143618925","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}
Christopher P. Catano, Jonathan Bauer, Tyler Bassett, Eric Behrens, Lars A. Brudvig
{"title":"Regional Processes Mediate Ecological Selection and the Distribution of Plant Diversity Across Scales","authors":"Christopher P. Catano, Jonathan Bauer, Tyler Bassett, Eric Behrens, Lars A. Brudvig","doi":"10.1111/ele.70095","DOIUrl":"10.1111/ele.70095","url":null,"abstract":"<p>Community ecology remains focused on interactions at small scales, which limits causal understanding of how regional and local processes interact to mediate biodiversity changes. We hypothesise that species pool size and immigration are two regional processes altering the balance between local niche selection and drift that cause variation in plant diversity. We manipulated the richness and number of seeds sown (species pool size and immigration respectively) into 12 grasslands across a landscape soil moisture gradient. Greater immigration and smaller species pools increased the variation in plant composition explained by soil moisture gradients but resulted in greater erosion of plant <i>α</i>-diversity and spatial <i>β</i>-diversity over time. Our results suggest that regional constraints on colonisation make community assembly more variable but help maintain species diversity by limiting biotic homogenisation. This study provides large-scale experimental evidence on how regional contexts can alter the relative importance of fundamental processes shaping biodiversity change across scales.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 3","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143546040","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}
Joseph M. Eisaguirre, Madeleine G. Lohman, Graham G. Frye, Heather E. Johnson, Thomas V. Riecke, Perry J. Williams
{"title":"Estimating Spatially Explicit Survival and Mortality Risk From Telemetry Data With Thinned Point Process Models","authors":"Joseph M. Eisaguirre, Madeleine G. Lohman, Graham G. Frye, Heather E. Johnson, Thomas V. Riecke, Perry J. Williams","doi":"10.1111/ele.70092","DOIUrl":"https://doi.org/10.1111/ele.70092","url":null,"abstract":"<div>\u0000 \u0000 <p>Mortality risk for animals often varies spatially and can be linked to how animals use landscapes. While numerous studies collect telemetry data on animals, the focus is typically on the period when animals are alive, even though there is important information that could be gleaned about mortality risk. We introduce a thinned spatial point process (SPP) modelling framework that couples relative abundance and space use with a mortality process to formally treat the occurrence of mortality events across the landscape as a spatial process. We show how this model can be embedded in a hierarchical statistical framework and fit to telemetry data to make inferences about how spatial covariates drive both space use and mortality risk. We apply the method to two data sets to study the effects of roads and habitat on spatially explicit mortality risk: (1) VHF telemetry data collected for willow ptarmigan in Alaska, and (2) hourly GPS telemetry data collected for black bears in Colorado. These case studies demonstrate the applicability of this method for different species and data types, making it broadly useful in enabling inferences about the mechanisms influencing animal survival and spatial population processes while formally treating survival as a spatial process, especially as the development and implementation of joint analyses continue to progress.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 3","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530406","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}
Christin Walther, Marine Vallet, Michael Reichelt, Prajakta Giri, Beate Rothe, Elina J. Negwer, Pamela Medina van Berkum, Jonathan Gershenzon, Sybille B. Unsicker
{"title":"A Fungal Endophyte Alters Poplar Leaf Chemistry, Deters Insect Feeding and Shapes Insect Community Assembly","authors":"Christin Walther, Marine Vallet, Michael Reichelt, Prajakta Giri, Beate Rothe, Elina J. Negwer, Pamela Medina van Berkum, Jonathan Gershenzon, Sybille B. Unsicker","doi":"10.1111/ele.70007","DOIUrl":"https://doi.org/10.1111/ele.70007","url":null,"abstract":"<p>Fungal endophytes of grasses and other herbaceous plants have been known to provide plants with anti-herbivore defence compounds, but there is little information about whether the endophytes of trees also engage in such mutualisms. We investigated the influence of the endophytic fungus <i>Cladosporium</i> sp. on the chemical defences of black poplar (<i>Populus nigra</i>) trees and the consequences for feeding preference and fitness of herbivorous insects and insect community assembly. Endophyte colonisation increased both constitutive- and induced poplar defences. Generalist <i>Lymantria dispar</i> larvae preferred and performed better on uninfected over endophyte-infected poplar leaves, most likely due to higher concentrations of salicinoids in endophyte-inoculated leaves and the endophyte-produced alkaloid stachydrine. Under field conditions, the endophytic fungus shapes insect community assembly i. a. attracting aphids, which can excrete stachydrine. Our results show that endophytic fungi play a crucial role in the defence against insects from different feeding guilds and thereby structuring insect communities.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143490054","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}
Isis Poinas, Christine N. Meynard, Guillaume Fried
{"title":"Plant Species Better Adapted to Climate Change Need Agricultural Extensification to Persist","authors":"Isis Poinas, Christine N. Meynard, Guillaume Fried","doi":"10.1111/ele.70030","DOIUrl":"https://doi.org/10.1111/ele.70030","url":null,"abstract":"<p>Agricultural intensification and climate change have led to well-known vegetation shifts in agricultural landscapes. However, concomitant plant functional changes in agroecosystems, especially at large scales, have been seldom characterised. Here, we used a standardised yearly monitoring of > 400 agricultural field margins in France to assess the temporal response of vegetation diversity and functional traits to variations in climate and intensity of agricultural practices (herbicides, fertilisation and mowing) between 2013 and 2021. We observed clear temporal trends of increasing warming and aridity, but trends towards agricultural extensification were weak or nonsignificant. Our results showed functional changes in plant communities over time, driven mostly by climate change and suggested selective forces opposing climate change to agricultural intensification. This translated as a temporal decline of competitive and ruderal species in favour of stress-tolerant species, putting plant communities in agroecosystems in a difficult position to escape both climate and agricultural pressures at the same time.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70030","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143490023","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":"Residence Time Structures Microbial Communities Through Niche Partitioning","authors":"Emmi A. Mueller, Jay T. Lennon","doi":"10.1111/ele.70093","DOIUrl":"https://doi.org/10.1111/ele.70093","url":null,"abstract":"<p>Much of life on Earth is at the mercy of currents and flow. Residence time (<i>τ</i>) estimates how long organisms and resources remain in a system based on the ratio of volume (<i>V</i>) to flow rate (<i>Q</i>). Short <i>τ</i> should promote immigration but limit species establishment, while long <i>τ</i> should favour species that survive on limited resources. Theory suggests these opposing forces shape the abundance, diversity and function of flowing systems. We experimentally tested how residence time affects a lake microbial community by exposing chemostats to a <i>τ</i> gradient spanning seven orders of magnitude. Microbial abundance, richness and evenness increased non-linearly with <i>τ</i>, while functions like productivity and resource consumption declined. Taxa formed distinct clusters of short- and long-<i>τ</i> specialists consistent with niche partitioning. Our findings demonstrate that residence time drives biodiversity and community function in flowing habitats that are commonly found in environmental, engineered and host-associated ecosystems.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143490022","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}
Christine E. Wilkinson, Niamh Quinn, Curtis Eng, Christopher J. Schell
{"title":"Environmental Health and Societal Wealth Predict Movement Patterns of an Urban Carnivore","authors":"Christine E. Wilkinson, Niamh Quinn, Curtis Eng, Christopher J. Schell","doi":"10.1111/ele.70088","DOIUrl":"https://doi.org/10.1111/ele.70088","url":null,"abstract":"<p>How societal, ecological and infrastructural attributes interact to influence wildlife movement is uncertain. We explored whether neighbourhood socioeconomic status and environmental quality were associated with coyote (<i>Canis latrans</i>) movement patterns in Los Angeles, California and assessed the performance of integrated social–ecological movement models. We found that coyotes living in more anthropogenically burdened regions (i.e. higher pollution, denser development, etc.) had larger home ranges and showed greater daily displacement and mean step length than coyotes in less burdened regions. Coyotes experiencing differing levels of anthropogenic burdens demonstrated divergent selection for vegetation, pollution, road densities and other habitat conditions. Further, movement models that included societal covariates performed better than models that only assessed ecological features and linear infrastructure. This study provides a unique social–ecological lens examining the anthropogenic drivers of urban wildlife movement, which should be applicable to urban planners and conservationists when building more equitable, healthy and wildlife-friendly cities.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70088","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489918","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}
Samuel J. L. Gascoigne, Maja Kajin, Shripad Tuljapurkar, Gabriel Silva Santos, Aldo Compagnoni, Ulrich K. Steiner, Anna C. Vinton, Harman Jaggi, Irem Sepil, Roberto Salguero-Gómez
{"title":"Structured Demographic Buffering: A Framework to Explore the Environmental Components and Demographic Mechanisms Underlying Demographic Buffering","authors":"Samuel J. L. Gascoigne, Maja Kajin, Shripad Tuljapurkar, Gabriel Silva Santos, Aldo Compagnoni, Ulrich K. Steiner, Anna C. Vinton, Harman Jaggi, Irem Sepil, Roberto Salguero-Gómez","doi":"10.1111/ele.70066","DOIUrl":"https://doi.org/10.1111/ele.70066","url":null,"abstract":"<p>Environmental stochasticity is a key determinant of population viability. Decades of work exploring how environmental stochasticity influences population dynamics have highlighted the ability of some natural populations to limit the negative effects of environmental stochasticity, one of the strategies being demographic buffering. Whilst various methods exist to quantify demographic buffering, we still do not know which environmental components and demographic mechanisms are most responsible for the demographic buffering observed in natural populations. Here, we introduce a framework to explore the relative impacts of environmental components (i.e., temporal autocorrelation and variance in demographic rates) on demographic buffering and the demographic mechanisms that underly these impacts (i.e., population structure and demographic rates). Using integral projection models, we show how demographic buffering is more sensitive to environmental variance relative to environmental autocorrelation. In addition, environmental autocorrelation and variance impact demographic buffering through distinct demographic mechanisms—i.e., population structure and demographic rates, respectively.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489917","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}
Casey Youngflesh, Kelly Kapsar, Adriana Uscanga, Peter J. Williams, Jeffrey W. Doser, Lala Kounta, Phoebe L. Zarnetske
{"title":"Environmental Variability Shapes Life History of the World's Birds","authors":"Casey Youngflesh, Kelly Kapsar, Adriana Uscanga, Peter J. Williams, Jeffrey W. Doser, Lala Kounta, Phoebe L. Zarnetske","doi":"10.1111/ele.70077","DOIUrl":"https://doi.org/10.1111/ele.70077","url":null,"abstract":"<p>Theory suggests life history plays a key role in the ability of organisms to persist under fluctuating environmental conditions. However, the notion that environmental variability has shaped the distribution of life history traits across large spatial and taxonomic scales has gone largely untested using empirical data. Synthesising a collection of data resources on global climate, species traits, and species ranges, we quantified the role that environmental variability over time has played in shaping pace of life across the world's non-migratory, non-marine bird species (<i>N</i> = 7477). In support of existing theory, we found that species that experience high inter-annual temperature variability tended to have a slower pace of life, while the opposite was true for high intra-annual temperature variability. The effect of precipitation variability was less pronounced and more uncertain. These observed patterns were apparent despite the vastly different ecologies of our study species and evidence of strong phylogenetic constraint. Additionally, we highlight the importance of contextualising rates of environmental change in terms of the historical variability of environmental systems and species' pace of life. Species experiencing higher rates of relative environmental change, in terms of standard deviations per generation, may be most susceptible to climate change.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481491","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}