Chunlong Liu, Zeli Ruan, Jiayuan Xie, Jonathan M. Jeschke, Lise Comte, Julian D. Olden, Yunwei Dong, Jiansong Chu, Bin Kang, Brian Leung
{"title":"Dynamic Environmental Niches of Marine Invasive Species Over 200 Years","authors":"Chunlong Liu, Zeli Ruan, Jiayuan Xie, Jonathan M. Jeschke, Lise Comte, Julian D. Olden, Yunwei Dong, Jiansong Chu, Bin Kang, Brian Leung","doi":"10.1111/ele.70164","DOIUrl":"https://doi.org/10.1111/ele.70164","url":null,"abstract":"<div>\u0000 \u0000 <p>Anticipating the risk of species invasions in new geographical regions remains fundamental to conservation. One critical assumption is that species' environmental niches remain stable under changing environments. If native environmental drivers predict introduced distributions, we would expect high overlap in niche space between native and introduced ranges, with introduced niche increasingly resembling their native niche over time. We quantified changes in species' occupied niche space across 200 years of invasion records, for 778 marine invaders at the global scale. For species in introduced ranges, the majority of their native niche space remained unfilled, even after two centuries. As expected, overlap between native and introduced niche spaces increased with time since invasion. However, niche overlap remained low on average, never exceeding 20% across species. Our results suggest that native environmental drivers will largely fail to predict introduced species ranges in marine ecosystems within policy-relevant (decadal) time frames.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144482080","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}
A. A. Ali, D. M. Gaboriau, J. A. Lesven, M. P. Girardin, C. C. Remy, D. Arseneault, G. de Lafontaine, V. Danneyrolles, H. Asselin, F. Gennaretti, E. Boucher, P. Grondin, M. Garneau, G. Magnan, B. Fréchette, S. Gauthier, Y. Bergeron
{"title":"Drying Spring Accelerates Transitions Toward Pyrogenic Vegetation in Eastern Boreal North America","authors":"A. A. Ali, D. M. Gaboriau, J. A. Lesven, M. P. Girardin, C. C. Remy, D. Arseneault, G. de Lafontaine, V. Danneyrolles, H. Asselin, F. Gennaretti, E. Boucher, P. Grondin, M. Garneau, G. Magnan, B. Fréchette, S. Gauthier, Y. Bergeron","doi":"10.1111/ele.70166","DOIUrl":"https://doi.org/10.1111/ele.70166","url":null,"abstract":"<p>The ongoing climate change increases vegetation flammability in the boreal forests of eastern North America, leading to more intense and severe wildfires. Using palaeoecological data—including charcoal, pollen, chironomids and testate amoebae—and climate model simulations of vapour pressure deficit (VPD) and available soil water (ASW), we analysed fire dynamics over the past 8000 years in boreal eastern North America. Over the last 4000 years, and particularly in the last 250 years, increasing spring drought has led to fewer, but more severe fires. This shift in the fire regime has favoured the spread of fire-adapted conifer species, particularly jack pine (<i>Pinus banksiana</i>), across the landscape. We infer that the predicted increase in VPD and decrease in ASW triggered by climate change will alter the fire regime and amplify the transition toward more pyrogenic vegetation within the boreal forest of eastern North America, with ecological and socio-economic consequences.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70166","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492757","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}
Francis Banville, Tanya Strydom, Penelope S. A. Blyth, Chris Brimacombe, Michael D. Catchen, Gabriel Dansereau, Gracielle Higino, Thomas Malpas, Hana Mayall, Kari Norman, Dominique Gravel, Timothée Poisot
{"title":"Deciphering Probabilistic Species Interaction Networks","authors":"Francis Banville, Tanya Strydom, Penelope S. A. Blyth, Chris Brimacombe, Michael D. Catchen, Gabriel Dansereau, Gracielle Higino, Thomas Malpas, Hana Mayall, Kari Norman, Dominique Gravel, Timothée Poisot","doi":"10.1111/ele.70161","DOIUrl":"https://doi.org/10.1111/ele.70161","url":null,"abstract":"<p>Representing species interactions probabilistically as opposed to deterministically conveys uncertainties in our knowledge of interactions. The sources of uncertainty captured by interaction probabilities depend on the method used to evaluate them: uncertainty of predictive models, subjective assessment of experts, or empirical measurement of interaction spatiotemporal variability. However, guidelines for the estimation and documentation of probabilistic interaction data are lacking. This is concerning because our understanding of interaction probabilities depend on their sometimes elusive definition and uncertainty sources. We review how probabilistic interactions are defined at different spatial scales. These definitions are based on the distinction between the realisation of an interaction at a specific time and space (local networks) and its biological or ecological feasibility (metaweb). Using host–parasite interactions in Europe, we illustrate how these two network representations differ in their statistical properties, specifically: how local networks and metawebs differ in their spatial and temporal scaling of interactions. We present two approaches to inferring binary interactions from probabilistic ones that account for these differences and show that systematic biases arise when directly inferring local networks from metawebs. Our results underscore the importance of more rigorous descriptions of probabilistic species interactions that specify their conditional variables and uncertainty sources.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492961","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":"Idiosyncrasies Unveiled: Examining the Pace, Patterns and Predictors of Biotic Diversification in Peninsular India","authors":"Pragyadeep Roy, Jahnavi Joshi","doi":"10.1111/ele.70160","DOIUrl":"https://doi.org/10.1111/ele.70160","url":null,"abstract":"<div>\u0000 \u0000 <p>The Peninsular Indian Plate, one of the oldest regions of diversification in tropical Asia, harbours highly diverse and endemic biota. However, our understanding of the diversification dynamics of its biota within a quantitative framework remains limited. To address this, we used time-calibrated molecular phylogenies and birth-death models to examine the tempo, mode and drivers of diversification across 33 well-studied endemic clades (~770 species). Among peninsular Indian clades, angiosperms diversified the fastest, whereas invertebrates diversified the slowest. Younger clades of Asian origin diversified more rapidly than the older, relictual Gondwanan clades. Evolutionary relatedness explained the disparities in diversification rates across taxonomic groups and biogeographic origins. A gradual accumulation of diversity was supported in 17 clades, suggesting that the historical stability of their habitat was an important driver. Miocene intensification of monsoons, and aridification and fluctuations in paleotemperature explained diversification patterns in the remaining 16 clades. Our results highlight the role of regional biogeography, geoclimatic processes and phylogenetic history in governing diversification dynamics in the tropics.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70160","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492756","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}
Jennifer A. Grauer, Joshua P. Twining, Manigandan Lejeune, Jacqueline L. Frair, Krysten L. Schuler, David W. Kramer, Angela K. Fuller
{"title":"Parasite-Mediated Competition Limits Dominant Cervid Competitor","authors":"Jennifer A. Grauer, Joshua P. Twining, Manigandan Lejeune, Jacqueline L. Frair, Krysten L. Schuler, David W. Kramer, Angela K. Fuller","doi":"10.1111/ele.70159","DOIUrl":"https://doi.org/10.1111/ele.70159","url":null,"abstract":"<p>Species interactions structure ecological communities through direct and indirect pathways with ecosystem-wide implications. Despite mounting interest in the importance of indirect interactions, empirical evidence remains limited. Here, we demonstrate the critical role of parasite-mediated competition in driving community outcomes in a multi-species system of conservation and management concern. We leveraged 2 years of detection/non-detection data of moose (<i>Alces alces</i>) and white-tailed deer (<i>Odocoileus virginianus</i>) and parasite loads in faecal samples within a hierarchical abundance-mediated interaction model to test hypotheses regarding interactions between these cervids and their shared parasites (<i>Parelaphostrongylus tenuis</i>, <i>Fascioloides magna</i>). We demonstrate that moose occupancy was limited by parasite-mediated competition, with no evidence of population-level effects of direct competitive interactions between moose and white-tailed deer. Such evidence of the importance of indirect interactions and resulting community outcomes is critical for species conservation and managing range contractions due to increasing pressures from habitat loss, disease and climate change.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70159","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144473233","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}
Daniel C. Suh, Katie Schroeder, Alexander T. Strauss
{"title":"Temperature and Resources Interact to Affect Transmission via Host Foraging Rate and Susceptibility","authors":"Daniel C. Suh, Katie Schroeder, Alexander T. Strauss","doi":"10.1111/ele.70151","DOIUrl":"https://doi.org/10.1111/ele.70151","url":null,"abstract":"<p>Environmental conditions such as temperature and resource availability can shape disease transmission by altering contact rates and/or the probability of infection given contact. However, interactive effects of these factors on transmission processes remain poorly understood. We develop mechanistic models and fit them to experimental data to uncover how temperature and resources jointly affect transmission of fungal parasites (<i>Metschnikowia bicuspidata</i>) in zooplankton hosts (<i>Daphnia dentifera</i>). Model competition revealed interactive effects of temperature and resources on both contact rates (host foraging) and the probability of infection given contact (per-parasite susceptibility). Foraging rates increased with temperature and decreased with resources (via type-II functional response), but this resource effect weakened at warmer temperatures due to shorter handling times. Per-parasite susceptibility increased with resources at cooler temperatures but remained consistently high when warmer. Our analysis demonstrates that temperature and resources interact to shape transmission processes and provides a general theoretical framework for other host–parasite systems.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70151","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144367615","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}
Nicholas C. Wu, Tomás Villada-Cadavid, Justin A. Welbergen, Christopher Turbill
{"title":"Seasonal Fattening Among Bat Populations Globally: Storing Energy for Survival in a Changing World","authors":"Nicholas C. Wu, Tomás Villada-Cadavid, Justin A. Welbergen, Christopher Turbill","doi":"10.1111/ele.70155","DOIUrl":"https://doi.org/10.1111/ele.70155","url":null,"abstract":"<p>Seasonality is a fundamental challenge for life on Earth and energy storage prior to colder and drier periods by fattening is a common strategy for survival. Fattening should reflect a trade-off between an expected seasonal energy deficit and the costs of increased body mass, which are particularly important to flying endotherms. We examined body mass change (Δ<i>M</i><sub>b</sub>), a proxy of fat storage, among bat populations over low productivity periods with global variation in yearly average and seasonality of local climates. We found that Δ<i>M</i><sub>b</sub> increased with decreasing mean annual surface temperature (MAST) but Δ<i>M</i><sub>b</sub> also increased at higher MAST with higher seasonality of rainfall. Seasonal use of body energy reserves by bats is predicted to be widespread in warm, seasonal climates at low latitudes but is poorly studied compared to cold temperate regions. In colder climates only, females lost less mass than males over winter, supporting the ‘thrifty females’ hypothesis, and Δ<i>M</i><sub>b</sub> has increased with year of study in warm climates, possibly linked to effects of global climate change on their energetics. Our quantitative synthesis highlights how intrinsic and environmental factors shape seasonal fattening in bats, and its global importance for survival in this diverse and widespread mammal group.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70155","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144367610","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}
Andrés N. Molina, M. Roberto García-Huidobro, Enrico L. Rezende, Mauricio J. Carter
{"title":"Chronic Heat Tolerance Reveals Overestimated Thermal Safety Margins and Increased Vulnerability in Marine Fish Populations","authors":"Andrés N. Molina, M. Roberto García-Huidobro, Enrico L. Rezende, Mauricio J. Carter","doi":"10.1111/ele.70165","DOIUrl":"https://doi.org/10.1111/ele.70165","url":null,"abstract":"<div>\u0000 \u0000 <p>Predicting vulnerability to global warming remains an elusive goal in thermal biology. In marine fishes, ongoing changes in distribution contrast with their apparent capacity to tolerate temperatures from 5°C up to 25°C higher than current conditions. Employing a data set of 786 upper critical temperatures across 213 species and recent theoretical developments, we provide conclusive evidence that these so-called thermal safety margins overestimate the resilience to warming and that most species inhabit thermal conditions approaching their physiological tolerance limit. This result holds across latitudes and based on historical records, several populations have encountered stressful temperatures in the recent past. While warming tolerance remains similar across geographic regions, behavioural responses are constrained at low latitudes as distribution shifts required to encounter cooler waters are disproportionally higher in the tropics. Overall, our results illustrate how thermotolerance measures can be extrapolated to the field and used to quantify vulnerability to warming.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144473208","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}
Aubrie R. M. James, Margaret M. Mayfield, Malyon D. Bimler
{"title":"Facilitation Thinking for Coexistence Theory","authors":"Aubrie R. M. James, Margaret M. Mayfield, Malyon D. Bimler","doi":"10.1111/ele.70150","DOIUrl":"https://doi.org/10.1111/ele.70150","url":null,"abstract":"<p>Species interactions are foundational to biodiversity maintenance. Facilitation, a common outcome of species interactions, occurs among and between a wide variety of organisms yet its treatment in the theory and models used to predict species coexistence is underdeveloped. We ask why this is and speculate about how to address this apparent discrepancy. We first evaluate a persistent ambivalence to facilitation in the context of population and community ecology, particularly in contemporary coexistence theory. We then propose ‘facilitation thinking’ to remedy the gap between empirical evidence of facilitation and mathematical theory of coexistence. We briefly discuss how a holistic treatment of facilitation in theory has the potential to reconfigure our basic understanding and definition of coexistence. Ultimately, we argue for an expanded theory of coexistence that accounts for a diversity of species interaction outcomes, allowing for the study of interactions and diversity maintenance beyond the war of all against all.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70150","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315046","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}
Armun Liaghat, Martin Guillemet, Rachel Whitaker, Sylvain Gandon, Mercedes Pascual
{"title":"Host Competitive Asymmetries Accelerate Viral Evolution in a Microbe–Virus Coevolutionary System","authors":"Armun Liaghat, Martin Guillemet, Rachel Whitaker, Sylvain Gandon, Mercedes Pascual","doi":"10.1111/ele.70153","DOIUrl":"https://doi.org/10.1111/ele.70153","url":null,"abstract":"<p>Microbial host populations evolve traits conferring specific resistance to viral predators via various defence mechanisms, while viruses reciprocally evolve traits to evade these defences. Such coevolutionary dynamics often involve diversification promoted by negative frequency-dependent selection. However, microbial traits conferring competitive asymmetries can induce directional selection, opposing diversification. Despite extensive research on microbe–virus coevolution, the combined effect of both host trait types and associated selection remains unclear. Using a CRISPR-mediated coevolutionary system, we examine how the co-occurrence of both trait types impacts viral evolution and persistence, previously shown to be transient and nonstationary in computational models. A stochastic model incorporating host competitive asymmetries via variation of intrinsic growth rates reveals that competitively advantaged host clades generate the majority of immune diversity. Greater asymmetries extend viral extinction times, accelerate viral adaptation locally in time and augment long-term local adaptation. These findings align with previous experiments and provide further insights into long-term coevolutionary dynamics.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 6","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70153","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315045","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}