Nature ecology & evolution最新文献

{"title":"Shared leadership beneath the waves","authors":"Susanne Hoffmann","doi":"10.1038/s41559-024-02534-1","DOIUrl":"10.1038/s41559-024-02534-1","url":null,"abstract":"A field study of multispecies groups of marine animals that engage in collective foraging finds that leadership can be shared between individuals of different species.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"8 11","pages":"2010-2012"},"PeriodicalIF":13.9,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142308157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scientist engagement and the knowledge-action gap.","authors":"Léonard Dupont,Staffan Jacob,Hervé Philippe","doi":"10.1038/s41559-024-02535-0","DOIUrl":"https://doi.org/10.1038/s41559-024-02535-0","url":null,"abstract":"The combined gravity of biodiversity loss and climate change keeps increasing. As the approaching catastrophe has never looked so alarming, the amount of scientific knowledge about the bioclimatic crisis is still rising exponentially. Here we reflect on how researchers in ecology or climate science behave amid this crisis. In face of the disproportionality between how much scientists know and how little they engage, we discuss four barriers that may underlie the decoupling of scientific awareness from concrete action. We then reflect on the potency of rational thinking to trigger engagement on its own, and question whether more scientific knowledge can be the tipping point towards radical changes within society. Our observations challenge the tenet that a better understanding of what surrounds us is necessary to protect it efficiently. With the environmental cost of scientific research itself as an additional factor that must be considered, we suggest there is an urgent need for researchers to collectively reflect on their situation and decide how to redirect their actions.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"13 1","pages":""},"PeriodicalIF":16.8,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142275206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Population continuity and change in Africa’s far south","authors":"Peter Mitchell","doi":"10.1038/s41559-024-02537-y","DOIUrl":"10.1038/s41559-024-02537-y","url":null,"abstract":"Ancient human genomic data from Oakhurst Rockshelter in South Africa push back the earliest reported ancient DNA from the subcontinent to the start of the Holocene, revealing surprising genetic continuity and raising questions about the nature of regional cultural change.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"8 11","pages":"2013-2015"},"PeriodicalIF":13.9,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142245700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"9,000 years of genetic continuity in southernmost Africa demonstrated at Oakhurst rockshelter","authors":"Joscha Gretzinger, Victoria E. Gibbon, Sandra E. Penske, Judith C. Sealy, Adam B. Rohrlach, Domingo C. Salazar-García, Johannes Krause, Stephan Schiffels","doi":"10.1038/s41559-024-02532-3","DOIUrl":"10.1038/s41559-024-02532-3","url":null,"abstract":"Southern Africa has one of the longest records of fossil hominins and harbours the largest human genetic diversity in the world. Yet, despite its relevance for human origins and spread around the globe, the formation and processes of its gene pool in the past are still largely unknown. Here, we present a time transect of genome-wide sequences from nine individuals recovered from a single site in South Africa, Oakhurst Rockshelter. Spanning the whole Holocene, the ancient DNA of these individuals allows us to reconstruct the demographic trajectories of the indigenous San population and their ancestors during the last 10,000 years. We show that, in contrast to most regions around the world, the population history of southernmost Africa was not characterized by several waves of migration, replacement and admixture but by long-lasting genetic continuity from the early Holocene to the end of the Later Stone Age. Although the advent of pastoralism and farming substantially transformed the gene pool in most parts of southern Africa after 1,300 bp, we demonstrate using allele-frequency and identity-by-descent segment-based methods that the ‡Khomani San and Karretjiemense from South Africa still show direct signs of relatedness to the Oakhurst hunter-gatherers, a pattern obscured by recent, extensive non-Southern African admixture. Yet, some southern San in South Africa still preserve this ancient, Pleistocene-derived genetic signature, extending the period of genetic continuity until today. Oakhurst rockshelter in South Africa documents marked cultural change during the Holocene, but genome-wide data from ancient human individuals at the site now demonstrate a remarkable degree of genetic continuity over the last 9,000 years: the contemporary ‡Khomani San and Karretjiemense from South Africa still show direct signs of relatedness to the Oakhurst hunter-gatherers.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"8 11","pages":"2121-2134"},"PeriodicalIF":13.9,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41559-024-02532-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142245701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evolutionary shift of a tipping point can precipitate, or forestall, collapse in a microbial community","authors":"Christopher Blake, Jake N. Barber, Tim Connallon, Michael J. McDonald","doi":"10.1038/s41559-024-02543-0","DOIUrl":"https://doi.org/10.1038/s41559-024-02543-0","url":null,"abstract":"<p>Global ecosystems are rapidly approaching tipping points, where minute shifts can lead to drastic ecological changes. Theory predicts that evolution can shape a system’s tipping point behaviour, but direct experimental support is lacking. Here we investigate the power of evolutionary processes to alter these critical thresholds and protect an ecological community from collapse. To do this, we propagate a two-species microbial system composed of <i>Escherichia coli</i> and baker’s yeast, <i>Saccharomyces cerevisiae</i>, for over 4,000 generations, and map ecological stability before and after coevolution. Our results reveal that tipping points—and other geometric properties of ecological communities—can evolve to alter the range of conditions under which our microbial community can flourish. We develop a mathematical model to illustrate how evolutionary changes in parameters such as growth rate, carrying capacity and resistance to environmental change affect ecological resilience. Our study shows that adaptation of key species can shift an ecological community’s tipping point, potentially promoting ecological stability or accelerating collapse.</p>","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"62 1","pages":""},"PeriodicalIF":16.8,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142236696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Growth rate as a link between microbial diversity and soil biogeochemistry","authors":"Megan M. Foley,&nbsp;Bram W. G. Stone,&nbsp;Tristan A. Caro,&nbsp;Noah W. Sokol,&nbsp;Benjamin J. Koch,&nbsp;Steven J. Blazewicz,&nbsp;Paul Dijkstra,&nbsp;Michaela Hayer,&nbsp;Kirsten Hofmockel,&nbsp;Brianna K. Finley,&nbsp;Michelle Mack,&nbsp;Jane Marks,&nbsp;Rebecca L. Mau,&nbsp;Victoria Monsaint-Queeney,&nbsp;Ember Morrissey,&nbsp;Jeffrey Propster,&nbsp;Alicia Purcell,&nbsp;Egbert Schwartz,&nbsp;Jennifer Pett-Ridge,&nbsp;Noah Fierer,&nbsp;Bruce A. Hungate","doi":"10.1038/s41559-024-02520-7","DOIUrl":"10.1038/s41559-024-02520-7","url":null,"abstract":"Measuring the growth rate of a microorganism is a simple yet profound way to quantify its effect on the world. The absolute growth rate of a microbial population reflects rates of resource assimilation, biomass production and element transformation—some of the many ways in which organisms affect Earth’s ecosystems and climate. Microbial fitness in the environment depends on the ability to reproduce quickly when conditions are favourable and adopt a survival physiology when conditions worsen, which cells coordinate by adjusting their relative growth rate. At the population level, relative growth rate is a sensitive metric of fitness, linking survival and reproduction to the ecology and evolution of populations. Techniques combining omics and stable isotope probing enable sensitive measurements of the growth rates of microbial assemblages and individual taxa in soil. Microbial ecologists can explore how the growth rates of taxa with known traits and evolutionary histories respond to changes in resource availability, environmental conditions and interactions with other organisms. We anticipate that quantitative and scalable data on the growth rates of soil microorganisms, coupled with measurements of biogeochemical fluxes, will allow scientists to test and refine ecological theory and advance process-based models of carbon flux, nutrient uptake and ecosystem productivity. Measurements of in situ microbial growth rates provide insights into the ecology of populations and can be used to quantitatively link microbial diversity to soil biogeochemistry. This Perspective discusses how recent developments in the ability to measure the growth of microbial populations, which provides an indicator of population fitness, can inform ecological and biogeochemical models.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"8 11","pages":"2018-2026"},"PeriodicalIF":13.9,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142236695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Migratory lifestyle carries no added overall energy cost in a partial migratory songbird","authors":"Nils Linek, Scott W. Yanco, Tamara Volkmer, Daniel Zuñiga, Martin Wikelski, Jesko Partecke","doi":"10.1038/s41559-024-02545-y","DOIUrl":"https://doi.org/10.1038/s41559-024-02545-y","url":null,"abstract":"<p>Seasonal bird migration may provide energy benefits associated with moving to areas with less physiologically challenging climates or increased food availability, but migratory movements themselves may carry high costs. However, time-dynamic energy profiles of free-living migrants—especially small-bodied songbirds—are challenging to measure. Here we quantify energy output and thermoregulatory costs in partially migratory common blackbirds using implanted heart rate and temperature loggers paired with automated radio telemetry and energetic modelling. Our results show that blackbirds save considerable energy in preparation for migration by decreasing heart rate and body temperature 28 days before departure, potentially dwarfing the energy costs of migratory flights. Yet, in warmer wintering areas, migrants do not appear to decrease total daily energy expenditure despite a substantially reduced cost of thermoregulation. These findings indicate differential metabolic programmes across different wintering strategies despite equivalent overall energy expenditure, suggesting that the maintenance of migration is associated with differences in energy allocation rather than with total energy expenditure.</p>","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"7 1","pages":""},"PeriodicalIF":16.8,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142236697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evolution alters ecological resilience","authors":"P. Catalina Chaparro-Pedraza","doi":"10.1038/s41559-024-02542-1","DOIUrl":"https://doi.org/10.1038/s41559-024-02542-1","url":null,"abstract":"A long-running coevolution experiment on bacteria and yeasts shows that adaptive evolution can shift the tipping points that trigger critical transitions in a community.","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"50 1","pages":""},"PeriodicalIF":16.8,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142236692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lake-centred sedentary lifestyle of early Tibetan Plateau Indigenous populations at high elevation 4,400 years ago","authors":"Xiaoyan Yang, Yu Gao, Shargan Wangdue, Jingkun Ran, Qing Wang, Songtao Chen, Jishuai Yang, Tianyi Wang, Zhengquan Gu, Ying Zhang, Peng Cao, Qingyan Dai, Shungang Chen, Yan Tong, Nihanxue Jia, Qingli Sun, Yunzhe Huang, Linda Perry, Jade d’Alpoim Guedes, Xu Han, Feng Liu, Xiaotian Feng, Qi Yang, Yunming Wang, Shihua Hu, Yaofei Tian, Jianglong Guo, Xinwei Liang, Ting You, Yazhong Li, Yunan Zhang, Zhenhua Deng, Ling Qin, Xiaohong Wu, Yijie Zhuang, Yichen Liu, Qiaomei Fu, Fahu Chen","doi":"10.1038/s41559-024-02539-w","DOIUrl":"https://doi.org/10.1038/s41559-024-02539-w","url":null,"abstract":"<p>The onset of sedentism on the Tibetan Plateau is often presumed to be associated with the dispersal of agriculture or farmers from archaeological sites located in the low elevation margins of the plateau. Previous studies of the plateau assumed that all foragers were probably mobile, but few systematic excavations at forager sites have been conducted to inform us about their settlement patterns. Here we report the world’s highest elevation sedentary way of living exhibited by the Mabu Co site at 4,446 metres above sea level, deep in the interior of the Tibetan Plateau 4,400–4,000 years ago. Our interdisciplinary study indicates that the site was occupied by Indigenous inhabitants of the plateau, representing the earliest known DNA evidence of foragers who predominantly harbour the southern plateau ancestry. The evidence shows that they had a sedentary lifestyle primarily supported by fishing at nearby lakes, supplemented by mammal and bird hunting, as well as small-scale exchanges of millet and rice crops.</p>","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":"327 1","pages":""},"PeriodicalIF":16.8,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142234463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Author Correction: A policy-driven framework for conserving the best of Earth's remaining moist tropical forests.","authors":"Andrew J Hansen, Patrick Burns, Jamison Ervin, Scott J Goetz, Matthew Hansen, Oscar Venter, James E M Watson, Patrick A Jantz, Anne L S Virnig, Kevin Barnett, Rajeev Pillay, Scott Atkinson, Christina Supples, Susana Rodríguez-Buritica, Dolors Armenteras","doi":"10.1038/s41559-024-02557-8","DOIUrl":"https://doi.org/10.1038/s41559-024-02557-8","url":null,"abstract":"","PeriodicalId":18835,"journal":{"name":"Nature ecology & evolution","volume":" ","pages":""},"PeriodicalIF":13.9,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142291522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}