Ecology Letters最新文献_第10页

The unexpected influence of legacy conspecific density dependence 遗留的同种密度依赖性的意外影响。

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-06-10 DOI: 10.1111/ele.14449

Lukas J. Magee, Joseph A. LaManna, Amy T. Wolf, Robert W. Howe, Yuanming Lu, Denis Valle, Daniel J. B. Smith, Robert Bagchi, David Bauman, Daniel J. Johnson

{"title":"The unexpected influence of legacy conspecific density dependence","authors":"Lukas J. Magee, Joseph A. LaManna, Amy T. Wolf, Robert W. Howe, Yuanming Lu, Denis Valle, Daniel J. B. Smith, Robert Bagchi, David Bauman, Daniel J. Johnson","doi":"10.1111/ele.14449","DOIUrl":"10.1111/ele.14449","url":null,"abstract":"When plants die, neighbours escape competition. Living conspecifics could disproportionately benefit because they are freed from negative intraspecific processes; however, if the negative effects of past conspecific neighbours persist, other species might be advantaged, and diversity might be maintained through legacy effects. We examined legacy effects in a mapped forest by modelling the survival of 37,212 trees of 23 species using four neighbourhood properties: living conspecific, living heterospecific, legacy conspecific (dead conspecifics) and legacy heterospecific densities. Legacy conspecific effects proved nearly four times stronger than living conspecific effects; changes in annual survival associated with legacy conspecific density were 1.5% greater than living conspecific effects. Over 90% of species were negatively impacted by legacy conspecific density, compared to 47% by living conspecific density. Our results emphasize that legacies of trees alter community dynamics, revealing that prior research may have underestimated the strength of density dependent interactions by not considering legacy effects.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"27 6","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141299545","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

Human-modified habitats imperil ornamented dragonflies less than their non-ornamented counterparts at local, regional, and continental scales 在地方、区域和大陆范围内，人类改造的栖息地对装饰蜻蜓造成的危害小于对非装饰蜻蜓造成的危害。

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-06-07 DOI: 10.1111/ele.14455

Michael P. Moore, Noah T. Leith, Kasey D. Fowler-Finn, Kim A. Medley

{"title":"Human-modified habitats imperil ornamented dragonflies less than their non-ornamented counterparts at local, regional, and continental scales","authors":"Michael P. Moore, Noah T. Leith, Kasey D. Fowler-Finn, Kim A. Medley","doi":"10.1111/ele.14455","DOIUrl":"10.1111/ele.14455","url":null,"abstract":"Biologists have long wondered how sexual ornamentation influences a species' risk of extinction. Because the evolution of condition-dependent ornamentation can reduce intersexual conflict and accelerate the fixation of advantageous alleles, some theory predicts that ornamented taxa can be buffered against extinction in novel and/or stressful environments. Nevertheless, evidence from the wild remains limited. Here, we show that ornamented dragonflies are less vulnerable to extinction across multiple spatial scales. Population-occupancy models across the Western United States reveal that ornamented species have become more common relative to non-ornamented species over >100 years. Phylogenetic analyses indicate that ornamented species exhibit lower continent-wide extinction risk than non-ornamented species. Finally, spatial analyses of local dragonfly assemblages suggest that ornamented species possess advantages over non-ornamented taxa at living in habitats that have been converted to farms and cities. Together, these findings suggest that ornamented taxa are buffered against contemporary extinction at local, regional, and continental scales.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"27 6","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141287465","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

Climate change fluctuations can increase population abundance and range size 气候变化的波动会增加种群数量和分布范围。

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-06-06 DOI: 10.1111/ele.14453

Jane Shaw MacDonald, Frithjof Lutscher, Yves Bourgault

引用次数: 0

Size exclusion experiment in a grassland field unravels top–down control of the soil fauna on microbial community assembly 草地上的尺寸排除实验揭示了土壤动物群落对微生物群落组合的自上而下的控制。

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-06-06 DOI: 10.1111/ele.14442

Mathilde Jeanbille, Sana Romdhane, Marie-Christine Breuil, David Bru, Stefan Geisen, Arnaud Mounier, Aymé Spor, Laurent Philippot

引用次数: 0

Suffering makes you weaker: Limited evolutionary adaptation in competitively inferior populations 苦难使人更弱：竞争劣势种群的有限进化适应。

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-06-06 DOI: 10.1111/ele.14457

Nan Chen, Quan-Guo Zhang

引用次数: 0

Host specificity of plant-associated bacteria is negatively associated with genome size and host abundance along a latitudinal gradient 沿纬度梯度，植物相关细菌的宿主特异性与基因组大小和宿主丰度呈负相关。

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-06-06 DOI: 10.1111/ele.14447

Zihui Wang, Geneviève Lajoie, Yuan Jiang, Minhua Zhang, Chengjin Chu, Yongfa Chen, Shuai Fang, Guangze Jin, Mingxi Jiang, Juyu Lian, Yanpeng Li, Yu Liu, Keping Ma, Xiangcheng Mi, Xiujuan Qiao, Xihua Wang, Xugao Wang, Han Xu, Wanhui Ye, Li Zhu, Yan Zhu, Fangliang He, Steven W. Kembel

{"title":"Host specificity of plant-associated bacteria is negatively associated with genome size and host abundance along a latitudinal gradient","authors":"Zihui Wang, Geneviève Lajoie, Yuan Jiang, Minhua Zhang, Chengjin Chu, Yongfa Chen, Shuai Fang, Guangze Jin, Mingxi Jiang, Juyu Lian, Yanpeng Li, Yu Liu, Keping Ma, Xiangcheng Mi, Xiujuan Qiao, Xihua Wang, Xugao Wang, Han Xu, Wanhui Ye, Li Zhu, Yan Zhu, Fangliang He, Steven W. Kembel","doi":"10.1111/ele.14447","DOIUrl":"10.1111/ele.14447","url":null,"abstract":"Host specialization plays a critical role in the ecology and evolution of plant–microbe symbiosis. Theory predicts that host specialization is associated with microbial genome streamlining and is influenced by the abundance of host species, both of which can vary across latitudes, leading to a latitudinal gradient in host specificity. Here, we quantified the host specificity and composition of plant–bacteria symbioses on leaves across 329 tree species spanning a latitudinal gradient. Our analysis revealed a predominance of host-specialized leaf bacteria. The degree of host specificity was negatively correlated with bacterial genome size and the local abundance of host plants. Additionally, we found an increased host specificity at lower latitudes, aligning with the high prevalence of small bacterial genomes and rare host species in the tropics. These findings underscore the importance of genome streamlining and host abundance in the evolution of host specificity in plant-associated bacteria along the latitudinal gradient.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"27 6","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.14447","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141282463","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

Temporal dynamics of Grime's CSR strategies in plant communities during 60 years of succession 在 60 年的演替过程中，Grime 的 CSR 策略在植物群落中的时间动态变化。

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-05-30 DOI: 10.1111/ele.14446

Yan-song Zhang, Scott J. Meiners, Yani Meng, Qi Yao, Kun Guo, Wen-Yong Guo, Shao-peng Li

{"title":"Temporal dynamics of Grime's CSR strategies in plant communities during 60 years of succession","authors":"Yan-song Zhang, Scott J. Meiners, Yani Meng, Qi Yao, Kun Guo, Wen-Yong Guo, Shao-peng Li","doi":"10.1111/ele.14446","DOIUrl":"10.1111/ele.14446","url":null,"abstract":"Grime's competitive, stress-tolerant, ruderal (CSR) theory predicts a shift in plant communities from ruderal to stress-tolerant strategies during secondary succession. However, this fundamental tenet lacks empirical validation using long-term continuous successional data. Utilizing a 60-year longitudinal data of old-field succession, we investigated the community-level dynamics of plant strategies over time. Our findings reveal that while plant communities generally transitioned from ruderal to stress-tolerant strategies during succession, initial abandonment conditions crucially shaped early successional strategies, leading to varied strategy trajectories across different fields. Furthermore, we found a notable divergence in the CSR strategies of alien and native species over succession. Initially, alien and native species exhibited similar ruderal strategies, but in later stages, alien species exhibited higher ruderal and lower stress tolerance compared to native species. Overall, our findings underscore the applicability of Grime's predictions regarding temporal shifts in CSR strategies depending on both initial community conditions and species origin.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"27 6","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141174054","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

The reorganization of predator–prey networks over 20 million years explains extinction patterns of mammalian carnivores 2000万年来捕食者-猎物网络的重组解释了哺乳类食肉动物的灭绝模式。

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-05-30 DOI: 10.1111/ele.14448

João C. S. Nascimento, Fernando Blanco, M. Soledad Domingo, Juan L. Cantalapiedra, Mathias M. Pires

{"title":"The reorganization of predator–prey networks over 20 million years explains extinction patterns of mammalian carnivores","authors":"João C. S. Nascimento, Fernando Blanco, M. Soledad Domingo, Juan L. Cantalapiedra, Mathias M. Pires","doi":"10.1111/ele.14448","DOIUrl":"10.1111/ele.14448","url":null,"abstract":"Linking the species interactions occurring at the scale of local communities to their potential impact at evolutionary timescales is challenging. Here, we used the high-resolution fossil record of mammals from the Iberian Peninsula to reconstruct a timeseries of trophic networks spanning more than 20 million years and asked whether predator–prey interactions affected regional extinction patterns. We found that, despite small changes in species richness, trophic networks showed long-term trends, gradually losing interactions and becoming sparser towards the present. This restructuring of the ecological networks was driven by the loss of medium-sized herbivores, which reduced prey availability for predators. The decrease in prey availability was associated with predator longevity, such that predators with less available prey had greater extinction risk. These results not only reveal long-term trends in network structure but suggest that prey species richness in ecological communities may shape large scale patterns of extinction and persistence among predators.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"27 6","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141174055","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

Caloric restriction extends lifespan in a clonal plant 限制热量可延长克隆植物的寿命

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-05-30 DOI: 10.1111/ele.14444

Suzanne L. Chmilar, Amanda C. Luzardo, Priyanka Dutt, Abbe Pawluk, Victoria C. Thwaites, Robert A. Laird

{"title":"Caloric restriction extends lifespan in a clonal plant","authors":"Suzanne L. Chmilar, Amanda C. Luzardo, Priyanka Dutt, Abbe Pawluk, Victoria C. Thwaites, Robert A. Laird","doi":"10.1111/ele.14444","DOIUrl":"10.1111/ele.14444","url":null,"abstract":"When subjected to dietary caloric restriction (CR), individual animals often outlive well-fed conspecifics. Here, we address whether CR also extends lifespan in plants. Whereas caloric intake in animals comes from ingestion, in plants it derives from photosynthesis. Thus, factors that reduce photosynthesis, such as reduced light intensity, can induce CR. In two lab experiments investigating the aquatic macrophyte Lemna minor, we tracked hundreds of individuals longitudinally, with light intensity—and hence, CR—manipulated using neutral-density filters. In both experiments, CR dramatically increased lifespan through a process of temporal scaling. Moreover, the magnitude of lifespan extension accorded with the assumptions that (a) light intensity positively relates to photosynthesis following Michaelis–Menten kinetics, and (b) photosynthesis negatively relates to lifespan via a power law. Our results emphasize that CR-mediated lifespan extension applies to autotrophs as well as heterotrophs, and suggest that variation in light intensity has quantitatively predictable effects on plant aging trajectories.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"27 6","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.14444","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141174053","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 new approach to geostatistical synthesis of historical records reveals capuchin spatial responses to climate and demographic change 对历史记录进行地理统计综合的新方法揭示了卷尾猴对气候和人口变化的空间反应。

IF 8.8 1区环境科学与生态学

Ecology Letters Pub Date : 2024-05-27 DOI: 10.1111/ele.14443

Odd T. Jacobson, Brendan J. Barrett, Susan E. Perry, Genevieve E. Finerty, Kate M. Tiedeman, Margaret C. Crofoot

{"title":"A new approach to geostatistical synthesis of historical records reveals capuchin spatial responses to climate and demographic change","authors":"Odd T. Jacobson, Brendan J. Barrett, Susan E. Perry, Genevieve E. Finerty, Kate M. Tiedeman, Margaret C. Crofoot","doi":"10.1111/ele.14443","DOIUrl":"10.1111/ele.14443","url":null,"abstract":"Recent proliferation of GPS technology has transformed animal movement research. Yet, time-series data from this recent technology rarely span beyond a decade, constraining longitudinal research. Long-term field sites hold valuable historic animal location records, including hand-drawn maps and semantic descriptions. Here, we introduce a generalised workflow for converting such records into reliable location data to estimate home ranges, using 30 years of sleep-site data from 11 white-faced capuchin (Cebus imitator) groups in Costa Rica. Our findings illustrate that historic sleep locations can reliably recover home range size and geometry. We showcase the opportunity our approach presents to resolve open questions that can only be addressed with very long-term data, examining how home ranges are affected by climate cycles and demographic change. We urge researchers to translate historical records into usable movement data before this knowledge is lost; it is essential to understanding how animals are responding to our changing world.","PeriodicalId":161,"journal":{"name":"Ecology Letters","volume":"27 5","pages":""},"PeriodicalIF":8.8,"publicationDate":"2024-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ele.14443","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141156820","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