Ecology Letters最新文献_第9页

Changes in Plant Biomass Are Driven by Persisting Plant Species, but Species Gains Drive Nematode Carbon Dynamics 植物生物量的变化是由持续存在的植物物种驱动的，但物种增益驱动线虫的碳动态

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-17 DOI: 10.1111/ele.70070

Anning Zhang, Shuyan Chen, Ziyang Liu, Jingwei Chen, Hongxian Song, Hanwen Cui, Zi Yang, Sa Xiao, Lizhe An, Mark A. Genung

{"title":"Changes in Plant Biomass Are Driven by Persisting Plant Species, but Species Gains Drive Nematode Carbon Dynamics","authors":"Anning Zhang, Shuyan Chen, Ziyang Liu, Jingwei Chen, Hongxian Song, Hanwen Cui, Zi Yang, Sa Xiao, Lizhe An, Mark A. Genung","doi":"10.1111/ele.70070","DOIUrl":"10.1111/ele.70070","url":null,"abstract":"<div>\u0000 \u0000 Global change drivers, such as shrub encroachment, alter above- and belowground communities, and the consequences of these changes for ecosystem functioning are largely unknown. We used the modified Price equation to quantify how the presence of shrubs alters the richness, composition, and abundance of plant and nematode communities and the resulting effects on ecosystem functioning (i.e., plant biomass and nematode carbon [C] metabolism) on the Qinghai-Tibet Plateau. Plots with shrubs had increased plant biomass (mostly due to persisting plant species producing more biomass) and nematode C metabolism (mostly due to increases in nematode species richness). The strength of the species richness effect on plant biomass was positively associated with the strength of the species richness on nematode C metabolism. Increases in the biomass of persisting species and species gains promote plant biomass and nematode C metabolism, respectively, which may accelerate decomposition and C turnover on the Qinghai-Tibet Plateau.\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 2","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427145","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

Reproductive Interference Alters Species Coexistence in Nematodes due to Asymmetric Sperm-Induced Harm 不对称精子诱导的生殖干扰改变了线虫的物种共存

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-03 DOI: 10.1111/ele.70067

Rebecca Schalkowski, Katja R. Kasimatis, Megan A. Greischar, Asher D. Cutter

{"title":"Reproductive Interference Alters Species Coexistence in Nematodes due to Asymmetric Sperm-Induced Harm","authors":"Rebecca Schalkowski, Katja R. Kasimatis, Megan A. Greischar, Asher D. Cutter","doi":"10.1111/ele.70067","DOIUrl":"10.1111/ele.70067","url":null,"abstract":"Species coexistence is shaped by a range of biotic and abiotic factors. Beyond predation, parasitism and competition, one species may interfere with another's reproduction to induce sexual exclusion from a habitat. Here, we test for reproductive interference from inter-species mating between sympatric nematodes Caenorhabditis macrosperma and C. nouraguensis. Higher intrinsic population growth of C. nouraguensis arises from greater reproductive output by both sexes, predicting it to be superior in resource competition. Mate discrimination between species is incomplete, however, with inter-species mating errors reducing lifespan and reproductive fitness of female C. nouraguensis only. These asymmetric costs arise within hours, due to ectopic migration of C. macrosperma's giant sperm cells. We modelled the population dynamic impacts of reproductive interference, then confirmed rapid sexual exclusion in mixed-species communities with multi-generation experiments. These findings demonstrate the profound ecological implications of reproductive interference for demographic parameters and species coexistence through a cell-mediated mechanism of inter-species harm.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70067","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143083574","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

Seasonal Shifts in Trophic Interaction Strength Drive Stability of Natural Food Webs 营养相互作用强度的季节变化驱动天然食物网的稳定性

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-02-01 DOI: 10.1111/ele.70075

Ursula Gaedke, Xiaoxiao Li, Christian Guill, Lia Hemerik, Peter C. de Ruiter

{"title":"Seasonal Shifts in Trophic Interaction Strength Drive Stability of Natural Food Webs","authors":"Ursula Gaedke, Xiaoxiao Li, Christian Guill, Lia Hemerik, Peter C. de Ruiter","doi":"10.1111/ele.70075","DOIUrl":"10.1111/ele.70075","url":null,"abstract":"It remains challenging to understand why natural food webs are remarkably stable despite highly variable environmental factors and population densities. We investigated the dynamics in the structure and stability of Lake Constance's pelagic food web using 7 years of high-frequency observations of biomasses and production, leading to 59 seasonally resolved quantitative food web descriptions. We assessed the dynamics in asymptotic food web stability through maximum loop weight, which revealed underlying stability mechanisms. Maximum loop weight showed a recurrent seasonal pattern with a consistently high stability despite pronounced dynamics in biomasses, fluxes and productivity. This stability resulted from seasonal rewiring of the food web, driven by energetic constraints within loops and their embedding into food web structure. The stabilising restructuring emerged from counter-acting effects of metabolic activity and competitiveness/susceptibility to predation within a diverse grazer community on loop weight. This underscores the role of functional diversity in promoting food web stability.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70075","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143072511","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

Intraspecific Diversity in Thermal Performance Determines Phytoplankton Ecological Niche 种内热性能多样性决定浮游植物生态位

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-01-30 DOI: 10.1111/ele.70055

Arianna I. Krinos, Sara K. Shapiro, Weixuan Li, Sheean T. Haley, Sonya T. Dyhrman, Stephanie Dutkiewicz, Michael J. Follows, Harriet Alexander

{"title":"Intraspecific Diversity in Thermal Performance Determines Phytoplankton Ecological Niche","authors":"Arianna I. Krinos, Sara K. Shapiro, Weixuan Li, Sheean T. Haley, Sonya T. Dyhrman, Stephanie Dutkiewicz, Michael J. Follows, Harriet Alexander","doi":"10.1111/ele.70055","DOIUrl":"10.1111/ele.70055","url":null,"abstract":"<div>\u0000 \u0000 Temperature has a primary influence on phytoplankton physiology and ecology. We grew 12 strains of Gephyrocapsa huxleyi isolated from different-temperature regions for ~45 generations (2 months) and characterised acclimated thermal response curves across a temperature range. Even with similar temperature optima and overlapping cell size, strain growth rates varied between 0.45 and 1 day−1. Thermal niche widths varied from 16.7°C to 24.8°C, suggesting that strains use distinct thermal response mechanisms. We investigated the implications of this thermal intraspecific diversity using an ocean ecosystem simulation resolving phytoplankton thermal phenotypes. Model analogues of thermal ‘generalists’ and ‘specialists’ resulted in a distinctive global biogeography of thermal niche widths with a nonlinear latitudinal pattern. We leveraged model output to predict ranges of the 12 lab-reared strains and demonstrated how this approach could broadly refine geographic range predictions. Our combination of observations and modelled biogeography highlights the capacity of diverse groups to survive temperature shifts.\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143056647","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

A Probabilistic View of Forbidden Links: Their Prevalence and Their Consequences for the Robustness of Plant–Hummingbird Communities 禁止链接的概率观点：它们的流行及其对植物-蜂鸟群落稳健性的影响

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-01-28 DOI: 10.1111/ele.70073

François Duchenne, Elisa Barreto, Esteban A. Guevara, Holger Beck, Carolina Bello, Rafaela Bobato, Daniela Bôlla, Emanuel Brenes, Nicole Büttner, Ana P. Caron, Nelson Chaves-Elizondo, María J. Gavilanes, Alejandro Restrepo-González, Jose Alejandro Castro, Miriam Kaehler, Tiago Machado-de-Souza, Miguel Machnicki-Reis, Andrés Sebastián F. Marcayata, Cauã G. de Menezes, Andrea Nieto, Rafael de Oliveira, Ricardo A. C. de Oliveira, Friederike Richter, Bryan G. Rojas, Luciele L. Romanowski, Wellinton L. de Souza, Danila S. Veluza, Ben Weinstein, Rafael O. Wüest, Thais B. Zanata, Krystal Zuniga, María A. Maglianesi, Tatiana Santander, Isabela G. Varassin, Catherine H. Graham

{"title":"A Probabilistic View of Forbidden Links: Their Prevalence and Their Consequences for the Robustness of Plant–Hummingbird Communities","authors":"François Duchenne, Elisa Barreto, Esteban A. Guevara, Holger Beck, Carolina Bello, Rafaela Bobato, Daniela Bôlla, Emanuel Brenes, Nicole Büttner, Ana P. Caron, Nelson Chaves-Elizondo, María J. Gavilanes, Alejandro Restrepo-González, Jose Alejandro Castro, Miriam Kaehler, Tiago Machado-de-Souza, Miguel Machnicki-Reis, Andrés Sebastián F. Marcayata, Cauã G. de Menezes, Andrea Nieto, Rafael de Oliveira, Ricardo A. C. de Oliveira, Friederike Richter, Bryan G. Rojas, Luciele L. Romanowski, Wellinton L. de Souza, Danila S. Veluza, Ben Weinstein, Rafael O. Wüest, Thais B. Zanata, Krystal Zuniga, María A. Maglianesi, Tatiana Santander, Isabela G. Varassin, Catherine H. Graham","doi":"10.1111/ele.70073","DOIUrl":"10.1111/ele.70073","url":null,"abstract":"<div>\u0000 \u0000 The presence in ecological communities of unfeasible species interactions, termed forbidden links, due to physiological or morphological exploitation barriers has been long debated, but little direct evidence has been found. Forbidden links are likely to make ecological communities less robust to species extinctions, stressing the need to assess their prevalence. Here, we used a dataset of plant–hummingbird interactions, coupled with a Bayesian hierarchical model, to assess the importance of exploitation barriers in determining species interactions. We found evidence for exploitation barriers between flowers and hummingbirds across the 32 studied communities; however, the proportion of forbidden links changed drastically among communities because of changes in trait distributions. The higher the proportion of forbidden links, the more they decreased network robustness because of constraints on interaction rewiring. Our results suggest that exploitation barriers are not rare in plant–hummingbird communities and have the potential to limit the rescue of species experiencing partner extinction.\u0000 </div>","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050879","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

A Non-Equilibrium Species Distribution Model Reveals Unprecedented Depth of Time Lag Responses to Past Environmental Change Trajectories 一个非平衡物种分布模型揭示了对过去环境变化轨迹的空前深度的时间滞后响应

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-01-23 DOI: 10.1111/ele.70040

Etienne Lalechère, Ronan Marrec, Jonathan Lenoir

引用次数: 0

Correction to “The importance of neutral over niche processes in structuring Ediacaran early animal communities” 更正“在构造埃迪卡拉纪早期动物群落中中性过程对生态位过程的重要性”

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-01-21 DOI: 10.1111/ele.70048

引用次数: 0

Causal Inference With Observational Data and Unobserved Confounding Variables 用观察数据和未观察到的混杂变量进行因果推断

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-01-21 DOI: 10.1111/ele.70023

Jarrett E. K. Byrnes, Laura E. Dee

{"title":"Causal Inference With Observational Data and Unobserved Confounding Variables","authors":"Jarrett E. K. Byrnes, Laura E. Dee","doi":"10.1111/ele.70023","DOIUrl":"10.1111/ele.70023","url":null,"abstract":"Experiments have long been the gold standard for causal inference in Ecology. As Ecology tackles progressively larger problems, however, we are moving beyond the scales at which randomised controlled experiments are feasible. To answer causal questions at scale, we need to also use observational data —something Ecologists tend to view with great scepticism. The major challenge using observational data for causal inference is confounding variables: variables affecting both a causal variable and response of interest. Unmeasured confounders—known or unknown—lead to statistical bias, creating spurious correlations and masking true causal relationships. To combat this omitted variable bias, other disciplines have developed rigorous approaches for causal inference from observational data that flexibly control for broad suites of confounding variables. We show how ecologists can harness some of these methods—causal diagrams to identify confounders coupled with nested sampling and statistical designs—to reduce risks of omitted variable bias. Using an example of estimating warming effects on snails, we show how current methods in Ecology (e.g., mixed models) produce incorrect inferences due to omitted variable bias and how alternative methods can eliminate it, improving causal inferences with weaker assumptions. Our goal is to expand tools for causal inference using observational and imperfect experimental data in Ecology.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991151","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

A Continuum From Positive to Negative Interactions Drives Plant Species' Performance in a Diverse Community 一个连续的从积极到消极的相互作用驱动植物物种的表现在一个多样化的群落

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-01-21 DOI: 10.1111/ele.70059

Lisa Buche, Lauren G. Shoemaker, Lauren M. Hallett, Ignasi Bartomeus, Peter Vesk, Christopher Weiss-Lehman, Margaret Mayfield, Oscar Godoy

{"title":"A Continuum From Positive to Negative Interactions Drives Plant Species' Performance in a Diverse Community","authors":"Lisa Buche, Lauren G. Shoemaker, Lauren M. Hallett, Ignasi Bartomeus, Peter Vesk, Christopher Weiss-Lehman, Margaret Mayfield, Oscar Godoy","doi":"10.1111/ele.70059","DOIUrl":"10.1111/ele.70059","url":null,"abstract":"With many species interacting in nature, determining which interactions describe community dynamics is nontrivial. By applying a computational modeling approach to an extensive field survey, we assessed the importance of interactions from plants (both inter- and intra-specific), pollinators and insect herbivores on plant performance (i.e., viable seed production). We compared the inclusion of interaction effects as aggregate guild-level terms versus terms specific to taxonomic groups. We found that a continuum from positive to negative interactions, containing mostly guild-level effects and a few strong taxonomic-specific effects, was sufficient to describe plant performance. While interactions with herbivores and intraspecific plants varied from weakly negative to weakly positive, heterospecific plants mainly promoted competition and pollinators facilitated plants. The consistency of these empirical findings over 3 years suggests that including the guild-level effects and a few taxonomic-specific groups rather than all pairwise and high-order interactions, can be sufficient for accurately describing species variation in plant performance across natural communities.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"28 1","pages":""},"PeriodicalIF":7.6,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.70059","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991152","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

High Capacity for Physiological Plasticity Occurs at a Slow Rate in Ectotherms 高生理可塑性在变温动物中以缓慢的速度发生

IF 7.6 1区环境科学与生态学

Ecology Letters Pub Date : 2025-01-20 DOI: 10.1111/ele.70046

Tim Burton, Sigurd Einum

引用次数: 0