Ecology Letters最新文献_第6页

Variation in Salmon Migration Phenology Bolsters Population Stability but Is Threatened by Drought 鲑鱼迁徙物候的变化促进了种群的稳定，但也受到干旱的威胁

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-23 DOI: 10.1111/ele.70081

Henry K. Baker, Mariska Obedzinski, Theodore E. Grantham, Stephanie M. Carlson

{"title":"Variation in Salmon Migration Phenology Bolsters Population Stability but Is Threatened by Drought","authors":"Henry K. Baker, Mariska Obedzinski, Theodore E. Grantham, Stephanie M. Carlson","doi":"10.1111/ele.70081","DOIUrl":"https://doi.org/10.1111/ele.70081","url":null,"abstract":"<p>Intrapopulation variation in movement is common in nature but its effects on population dynamics are poorly understood. Using movement data from 3270 individually-marked fish representing nine cohorts of coho salmon (<i>Oncorhynchus kisutch</i>) in California, we show that bimodal intrapopulation variation in the timing of juvenile down-migration from their natal habitat and subsequent residence in non-natal habitat affects growth, emigration timing, and the abundance and stability of adult returns. Non-natal fish (early down-migrants) exhibited more variable growth and more variable but earlier emigration to the estuary than natal fish (late down-migrants). While natal rearing was more common, non-natal fish were overrepresented among adult returns, and total returns were 1.4 times more stable than natal returns alone. Our results demonstrate that variation in migratory behaviour bolsters population stability. However, non-natal rearing is reduced in low water years, suggesting that drought exacerbates population instability by reducing critical intrapopulation variation.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70081","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475339","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

Integrating Landscapes of Fear and Energy Reveals the Behavioural Strategies That Shape Predator–Prey Interactions 整合恐惧和能量的景观揭示了塑造捕食者-猎物相互作用的行为策略

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-23 DOI: 10.1111/ele.70068

Michael A. Gil, Cyril J. Michel, Simone Olivetti, Vamsi Sridharan, Andrew M. Hein

{"title":"Integrating Landscapes of Fear and Energy Reveals the Behavioural Strategies That Shape Predator–Prey Interactions","authors":"Michael A. Gil, Cyril J. Michel, Simone Olivetti, Vamsi Sridharan, Andrew M. Hein","doi":"10.1111/ele.70068","DOIUrl":"https://doi.org/10.1111/ele.70068","url":null,"abstract":"<div>\u0000 \u0000 <p>Disparate bodies of literature implicate risk avoidance and energy conservation as important drivers of animal movement decisions. Theory posits that these phenomena interact in ecologically consequential ways, but rigorous empirical tests of this hypothesis have been hampered by data limitations. We fuse fluid dynamics, telemetry, and attack data to reconstruct risk and energy landscapes traversed by migrating juvenile salmon and their predators. We find that migrants primarily use midriver microhabitats that facilitate migration at night. During daylight, predators become more aggressive in the midriver, and prey reduce midriver use in favour of nearshore microhabitats, resulting in increased energy expenditure and decreased migration efficiency. Predators attack most when migrants are not prioritising threat avoidance and during ephemeral periods of low lighting. Our findings suggest that predator–prey interactions result from an interplay between landscapes of fear and energy, which can determine the degree to which predators affect prey through mortality or fear.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143475338","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

Adaptive Evolution of Freezing Tolerance in Oaks Is Key to Their Dominance in North America 北美橡树抗冻性的适应性进化是其优势的关键

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-21 DOI: 10.1111/ele.70084

Clarissa G. Fontes, Jose Eduardo Meireles, Andrew L. Hipp, Jeannine Cavender-Bares

{"title":"Adaptive Evolution of Freezing Tolerance in Oaks Is Key to Their Dominance in North America","authors":"Clarissa G. Fontes, Jose Eduardo Meireles, Andrew L. Hipp, Jeannine Cavender-Bares","doi":"10.1111/ele.70084","DOIUrl":"https://doi.org/10.1111/ele.70084","url":null,"abstract":"<div>\u0000 \u0000 <p>Freezing tolerance plays a pivotal role in shaping the distribution and diversification of organisms. We investigated the dynamics of adaptation to climate and potential trade-offs between stem freezing tolerance and growth rate in 48 <i>Quercus</i> species. Species from colder regions exhibited higher freezing tolerance, lower growth rates and higher winter-acclimation potential than species from warmer climates. Despite an evolutionary lag, freezing tolerance in oaks is closely aligned with its optimal state. Deciduous species showed marked variability in freezing tolerance across their broad climatic range, while evergreen species, confined to warm climates, displayed low freezing tolerance. Annual growth rates were constrained in all deciduous species, but those that evolved in warm latitudes lost freezing tolerance, precluding a trade-off between freezing tolerance and growth. We provide evidence that the capacity to adapt to a wide range of thermal environments was critical to adaptive radiation and the current dominance of the North American oaks.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143456148","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

Global Trends of Trait Matching in Avian Frugivory and Its Consequences for the Complementarity and Irreplaceability of Birds 鸟类果实性状匹配的全球趋势及其对鸟类互补性和不可替代性的影响

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-21 DOI: 10.1111/ele.70078

T. Morán-López, M. S. Campagna, M. Schleuning, D. García, J. M. Morales

{"title":"Global Trends of Trait Matching in Avian Frugivory and Its Consequences for the Complementarity and Irreplaceability of Birds","authors":"T. Morán-López, M. S. Campagna, M. Schleuning, D. García, J. M. Morales","doi":"10.1111/ele.70078","DOIUrl":"https://doi.org/10.1111/ele.70078","url":null,"abstract":"<div>\u0000 \u0000 <p>It is generally accepted that small birds cannot eat large fruits and that highly frugivorous species prefer lipid-poor ones (morphological and nutritional trait-matching). Yet, it is unclear if these rules operate globally and if their strength varies with latitude and on islands. This could have important functional implications for the degree of complementarity and irreplaceability of birds. We analyse avian frugivory in 59 communities across the globe and show that trait-matching is widespread. The strength of morphological trait-matching increased with latitude, and especially on islands, leading to high complementarity between large and small birds. However, whether this resulted in irreplaceability depended on the range of fruit sizes available in the community. Nutritional trait-matching was also common, but did not lead to complementarity or irreplaceability because birds with contrasting diets did not show opposite responses to lipid-poor fruits. We show that trait-matching is pervasive, but its functional consequences are complex.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466179","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

Warming During Different Life Stages has Distinct Impacts on Host Resistance Ecology and Evolution 不同生命阶段的增温对寄主的抗性生态和进化有不同的影响

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-21 DOI: 10.1111/ele.70087

Jingdi Li, Cameron A. Smith, Jinlin Chen, Kieran A. Bates, Kayla C. King

{"title":"Warming During Different Life Stages has Distinct Impacts on Host Resistance Ecology and Evolution","authors":"Jingdi Li, Cameron A. Smith, Jinlin Chen, Kieran A. Bates, Kayla C. King","doi":"10.1111/ele.70087","DOIUrl":"https://doi.org/10.1111/ele.70087","url":null,"abstract":"<p>Climate change is increasing extreme heating events and the potential for disease outbreaks. Whether hosts can adapt to infection with rising temperatures is important for forecasting species persistence. We tested whether warming—at different host life stages—affects the ecological and evolutionary dynamics of resistance in <i>Caenorhabditis elegans</i> infected by a wild bacterial pathogen. We competed resistant and susceptible genotypes across 10 passages and tracked the spread of resistance in the population. Infection and prolonged warming strongly selected for the resistant genotype. Warming during host development induced plastic defences against infection, reducing the selective pressure for costly genetic-based resistance. Resistance was lost under ambient temperatures and periodic warming. Selection for resistance was likely weakened at ambient temperatures by the dilution effect, whereby the resistant genotype reduced pathogen transmission. Evolutionary dynamics of resistance depend on the balance among pathogen virulence, costs of genetic-based resistance, the dilution effect and plastic defences induced by temperature stress.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70087","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143456149","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 Variation in Zooplankton Niche Divergence Across Ocean Basins 海洋盆地浮游动物生态位分化的全球变化

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-20 DOI: 10.1111/ele.70089

Niall McGinty, Andrew Irwin

引用次数: 0

A Mechanistic Approach to Animal Dispersal—Quantifying Energetics and Maximum Distances 动物分散的机械方法——量化能量和最大距离

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-20 DOI: 10.1111/ele.70085

Caitlin Wilkinson, Ulrich Brose, Alexander Dyer, Myriam R. Hirt, Remo Ryser

{"title":"A Mechanistic Approach to Animal Dispersal—Quantifying Energetics and Maximum Distances","authors":"Caitlin Wilkinson, Ulrich Brose, Alexander Dyer, Myriam R. Hirt, Remo Ryser","doi":"10.1111/ele.70085","DOIUrl":"https://doi.org/10.1111/ele.70085","url":null,"abstract":"<p>Dispersal is a fundamental process driving many ecological patterns. During transfer, species often make large-scale displacements resulting in significant energy losses with implications for fitness and survival, however generalising these losses across different taxonomic groups is challenging. We developed a bioenergetic dispersal model based on fundamental processes derived from species traits. By balancing energy storage and energy loss during active dispersal, our mechanistic model can quantify energy expenditures depending on landscape configuration and the species in focus. Moreover, it can be used to predict the maximum dispersal capacity of animals, which we compare with recorded maximum dispersal distances (<i>n</i> = 1571). Due to its foundation in bioenergetics it can easily be integrated into various ecological models, such as food-web and meta-community models. Furthermore, as dispersal is integral to ecological research, the quantification of dispersal capacities provides valuable insight into landscape connectivity, species persistence, and distribution patterns with implications for conservation research.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70085","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143446973","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

What Is a Specialist? Quantifying Host Breadth Enables Impact Prediction for Invasive Herbivores 什么是专家？量化宿主宽度可以预测入侵食草动物的影响

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-19 DOI: 10.1111/ele.70083

Ashley N. Schulz, Nathan P. Havill, Travis D. Marsico, Matthew P. Ayres, Kamal J.K. Gandhi, Daniel A. Herms, Angela M. Hoover, Ruth A. Hufbauer, Andrew M. Liebhold, Kenneth F. Raffa, Kathryn A. Thomas, Patrick C. Tobin, Daniel R. Uden, Angela M. Mech

{"title":"What Is a Specialist? Quantifying Host Breadth Enables Impact Prediction for Invasive Herbivores","authors":"Ashley N. Schulz, Nathan P. Havill, Travis D. Marsico, Matthew P. Ayres, Kamal J.K. Gandhi, Daniel A. Herms, Angela M. Hoover, Ruth A. Hufbauer, Andrew M. Liebhold, Kenneth F. Raffa, Kathryn A. Thomas, Patrick C. Tobin, Daniel R. Uden, Angela M. Mech","doi":"10.1111/ele.70083","DOIUrl":"https://doi.org/10.1111/ele.70083","url":null,"abstract":"<div>\u0000 \u0000 <p>Herbivores are commonly classified as host specialists or generalists for various purposes, yet the definitions of these terms, and their intermediates, are often imprecise and ambiguous. We quantified host breadth for 240 non-native, tree-feeding insects in North America using phylogenetic diversity. We demonstrated that a partitioning of host breadth: (1) causes 67% of non-native insects to shift from a generalist to specialist category, (2) displays a reduction in host breadth from the native to introduced range, (3) identifies an inflection point in a model predicting the likelihood of non-native insect ecological impact, with a corresponding change in behaviour associated with specialists versus generalists, and (4) enables three models for strong prediction of whether a non-native forest insect will cause high impacts. Together, these results highlight the primacy of how herbivore host recognition and plant defences mediate whether novel host interactions will result in high impact after invasion.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143439047","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

Urban Environments Promote Adaptation to Multiple Stressors 城市环境促进对多重压力源的适应

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-19 DOI: 10.1111/ele.70074

Elizabeta Briski, Louisa Langrehr, Syrmalenia G. Kotronaki, Alena Sidow, Cindy Giselle Martinez Reyes, Antonios Geropoulos, Gregor Steffen, Nora Theurich, James W. E. Dickey, Jasmin C. Hütt, Phillip J. Haubrock, Ismael Soto, Antonín Kouba, Ross N. Cuthbert

{"title":"Urban Environments Promote Adaptation to Multiple Stressors","authors":"Elizabeta Briski, Louisa Langrehr, Syrmalenia G. Kotronaki, Alena Sidow, Cindy Giselle Martinez Reyes, Antonios Geropoulos, Gregor Steffen, Nora Theurich, James W. E. Dickey, Jasmin C. Hütt, Phillip J. Haubrock, Ismael Soto, Antonín Kouba, Ross N. Cuthbert","doi":"10.1111/ele.70074","DOIUrl":"https://doi.org/10.1111/ele.70074","url":null,"abstract":"<p>Anthropogenic activities have drastically changed environmental conditions worldwide, negatively impacting biodiversity and ecosystem services. At the same time, the majority of the human population lives in urban areas that are greatly altered from natural habitats. Nevertheless, many species thrive in these urban environments. To improve our knowledge of evolution and adaptation in these anthropogenically impacted habitats, we conducted the widest series of stress experiments to date with three marine taxa: one mussel and two gammarid species. We compared intraspecific populations from protected and human-altered habitats to determine their tolerance to salinity, temperature and partial pressure of CO<sub>2</sub> in water (pCO<sub>2</sub>) regimes. Populations from impacted habitats typically outperformed protected habitat populations, with individuals from the most impacted habitat being the most robust. We propose that urban populations are adapting to life in disturbed environments—this adaptation concurrently promotes more resilient rescue populations but potentially confers increased invasion risk from non-native species.</p>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70074","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438905","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

Biodiversity Patterns Redefined in Environmental Space 环境空间中生物多样性格局的重新定义

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-19 DOI: 10.1111/ele.70008

Catherine H. Graham, Matheus Lima Araujo, Elisa Barreto, Christian S. Dambros, José Alexandre Felizola Diniz-Filho, Niklaus E. Zimmermann, Thiago F. Rangel, Marco Túlio Pacheco Coelho

{"title":"Biodiversity Patterns Redefined in Environmental Space","authors":"Catherine H. Graham, Matheus Lima Araujo, Elisa Barreto, Christian S. Dambros, José Alexandre Felizola Diniz-Filho, Niklaus E. Zimmermann, Thiago F. Rangel, Marco Túlio Pacheco Coelho","doi":"10.1111/ele.70008","DOIUrl":"https://doi.org/10.1111/ele.70008","url":null,"abstract":"<div>\u0000 \u0000 <p>Ecological and evolutionary questions addressing diversity-environment relationships have been evaluated almost entirely in geographic space, yet most hypotheses are formulated in terms of environmental conditions. Recent examples evaluating macroecological patterns directly in environmental space suggest that such refocusing provides different perspectives on the mechanisms driving broad-scale patterns of diversity. Yet, we lack both conceptual frameworks and targeted studies to fully evaluate the potential contribution of such a refocus. Here, we focus on the concept of environmental space by briefly reviewing its use in ecology and evolution and suggesting avenues for further development. We encourage a re-evaluation of hypotheses and frameworks that have dominated ecological theory since the foundations of ecology with a very simple shift in the lens, that is, from geographical to environmental space. Focusing on environmental space also provides a crucial lens for climate change research, enabling a comprehensive evaluation of biodiversity dynamics and offering a holistic view of the interplay between species and their evolving environments. This shift enhances our ability to predict and adapt to future changes, enriching our understanding of biodiversity beyond more commonly done geographic analyses.</p>\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143438904","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