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Article
| Open AccessEpidemiological data of an influenza A/H5N1 outbreak in elephant seals in Argentina indicates mammal-to-mammal transmission
Here, the authors detect clade 2.3.4.4b H5N1 viruses in elephant seals associated with a mass mortality event in Argentina, show that the viruses belong to a clade primarily seen in marine mammals in South America and that they carry mammal-adaptation mutations suggestive of potential mammal-to-mammal transmission.
- Marcela M. Uhart
- , Ralph E. T. Vanstreels
- & Agustina Rimondi
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Article
| Open AccessA unicellular cyanobacterium relies on sodium energetics to fix N2
High salinities are thought to inhibit nitrogen fixation by cyanobacteria in coastal waters. In contrast, Tang et al. show that nitrogen fixation in a coastal cyanobacterium requires sodium ions and is apparently driven by sodium energetics and mixed-acid fermentation.
- Si Tang
- , Xueyu Cheng
- & Zhonghua Cai
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Article
| Open AccessPhylotranscriptomics reveals the phylogeny of Asparagales and the evolution of allium flavor biosynthesis
Asparagales is the largest monocot order. Here, the authors produce the phylogeny of Asparagales with transcriptomic data from 455 species and investigate the evolution of genes involved with allium flavor biosynthesis.
- Xiao-Xiao Wang
- , Chien-Hsun Huang
- & Ling-Yun Chen
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Article
| Open AccessCurrent water contact and Schistosoma mansoni infection have distinct determinants: a data-driven population-based study in rural Uganda
Freshwater snails are the intermediate host of schistosomes, playing an important role in transmission. Here, the authors provide a detailed analysis of water contacts and other human-environmental variables in 38 villages in Uganda and provide profiles of at risk groups.
- Fabian Reitzug
- , Narcis B. Kabatereine
- & Goylette F. Chami
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Article
| Open AccessWhy models underestimate West African tropical forest primary productivity
This study finds that vegetation models commonly underestimate the productivity of West African forests, owing to bias in fractional absorbed photosynthetic radiation (fAPAR) and leaf level photosynthetic capacities.
- Huanyuan Zhang-Zheng
- , Xiongjie Deng
- & Yadvinder Malhi
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Article
| Open AccessTracing the evolutionary and genetic footprints of atmospheric tillandsioids transition from land to air
The mechanisms by which tillandsioids adapt to elevated aerial habitats remain largely unexplored. Here, the authors report their evolution and link life history, diversification, comparative genomic, and functional changes to processes underlying the unique biology of air plants.
- Xiaolong Lyu
- , Ping Li
- & Mingfang Zhang
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Article
| Open AccessGenome-guided isolation of the hyperthermophilic aerobe Fervidibacter sacchari reveals conserved polysaccharide metabolism in the Armatimonadota
Few aerobic hyperthermophilic microorganisms are known to degrade polysaccharides. Here, Nou et al. use genomic information to enrich and optical tweezers to isolate an aerobic hyperthermophilic bacterium that can grow at 65–87.5 °C using polysaccharides as sole carbon sources.
- Nancy O. Nou
- , Jonathan K. Covington
- & Brian P. Hedlund
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Article
| Open AccessThe biogeography of soil microbiome potential growth rates
Soil microbial growth controls carbon sequestration. Here, the authors show that resource-rich, neutral soils from cold and humid areas have higher growth potential than resource-poor, hypersaline soil from dry and hot regions, demonstrating diverse microbial adaptations.
- Zhenghu Zhou
- , Chuankuan Wang
- & Chengjie Ren
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Article
| Open AccessClimate change alters the future of natural floristic regions of deep evolutionary origins
Biogeographic regions reflect the organization of biotas over long evolutionary timescales. Here the authors show that climate change will lead to the persistence of some biogeographic regions and alteration of deeper biogeographic boundaries that separate historically distinctive plant assemblages.
- Samuel Minev-Benzecry
- & Barnabas H. Daru
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Article
| Open AccessGlobal metagenomic survey identifies sewage-derived hgcAB+ microorganisms as key contributors to riverine methylmercury production
Mercury-methylating microorganisms released from sewage are key contributors to rising methylmercury levels in urban rivers globally. Preventing the release of these mercury-methylators is crucial to mitigate public health risks associated with MeHg.
- Juntao Xia
- , Zhiguo Yuan
- & Feng Jiang
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Article
| Open AccessRoad fragment edges enhance wildfire incidence and intensity, while suppressing global burned area
Widespread global occurrence of roads break up the landscape and may be a powerful driver of increasing fire activity and intensity in less populated and less frequently burned regions, such as tropical forests, while decreasing fire on average at global scale.
- Simon P. K. Bowring
- , Wei Li
- & Philippe Ciais
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Article
| Open AccessAboveground and belowground sizes are aligned in the unified spectrum of plant form and function
Plants show diverse strategies for growth, reproduction, and survival, shaped by key aboveground and root traits. This study finds that adding root size traits does not change the global structure of plant strategies, confirming that plant size follows a unified continuum of allometric investment.
- Eleonora Beccari
- & Carlos P. Carmona
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Article
| Open AccessSeasonal dynamics and diversity of Antarctic marine viruses reveal a novel viral seascape
The study reveals that the Southern Ocean hosts a unique and largely underexplored DNA viral community. It explores the diversity of viral communities infecting all domains of life and their seasonality, emphasizing their role in ecosystem dynamics.
- Gonçalo J. Piedade
- , Max E. Schön
- & Corina P. D. Brussaard
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Article
| Open AccessWarming exacerbates global inequality in forest carbon and nitrogen cycles
Global warming may widen the development gap between the Global South and North by increasing inequalities in forest carbon and nitrogen cycling. High-income countries are expected to benefit from forest assets, while others face net losses.
- Jinglan Cui
- , Ouping Deng
- & Baojing Gu
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Article
| Open AccessOn the structure of species-function participation in multilayer ecological networks
Studies of species interactions tend to focus on single ecological functions. Here, the authors show that plant species tend to participate across different ecological functions in a non-random, nested structure, and some species and functions emerge as unexpected keystone actors of the multifunctional ecosystem.
- Sandra Hervías-Parejo
- , Mar Cuevas-Blanco
- & Victor M. Eguíluz
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Article
| Open AccessFlowering in the Northern Hemisphere is delayed by frost after leaf-out
Climate warming causes earlier spring phenological events and higher risk of late spring frost damage. Here, the authors investigate the impact of late spring frosts on phenological events, finding that they delayed flowering by an average of 6 days across 640 species.
- Haoyu Qiu
- , Qin Yan
- & Lei Chen
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Article
| Open AccessThe origin and maintenance of supergenes contributing to ecological adaptation in Atlantic herring
The Atlantic herring has four megabase-sized inversions associated with ecological adaptation. This study untangles their evolutionary history, showing that considerable genetic exchange between alleles has occurred and that effective purifying selection has prevented the accumulation of genetic load.
- Minal Jamsandekar
- , Mafalda S. Ferreira
- & Leif Andersson
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Article
| Open AccessIsotopic evidence of acetate turnover in Precambrian continental fracture fluids
Trapped in rock fractures miles below the surface are saline waters that have been isolated for millions of years. In these most remote environments exists an active turnover of dissolved organic molecules, an active carbon cycle.
- Elliott P. Mueller
- , Juliann Panehal
- & Alex L. Sessions
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Article
| Open AccessCollective self-caging of active filaments in virtual confinement
Motility coupled with responsive behavior is essential for microorganisms to establish suitable habitats, with simple responses like reversing motion enabling them to form stable aggregates. Kurjahn et al. show that filamentous cyanobacteria use light gradients and boundary curvature of light stimuli to form ordered, entangled aggregates, revealing how these dynamics could influence adaptive colony architectures.
- Maximilian Kurjahn
- , Leila Abbaspour
- & Stefan Karpitschka
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Article
| Open AccessThe impact of landscape structure on pesticide exposure to honey bees
Pesticides must be evaluated for their exposure to honey bees across diverse landscapes. This study reveals that both agricultural lands and urban areas resulted in higher pesticide exposure of bees, whereas forests were considered pesticide mitigation areas.
- Shumpei Hisamoto
- , Makihiko Ikegami
- & Yoshiko Sakamoto
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Article
| Open AccessThe socioeconomic and environmental niche of protected areas reveals global conservation gaps and opportunities
In this study, the authors show that the placement of protected areas is globally highly heterogenous but can be accurately predicted from a reduced set of socioeconomic and environmental factors. These predictions highlight that most unprotected areas critical for the conservation of vertebrates are located in unfavourable conditions to establish future protected areas.
- David Mouillot
- , Laure Velez
- & Wilfried Thuiller
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Article
| Open AccessA global assessment of mangrove soil organic carbon sources and implications for blue carbon credit
Mangrove-derived organic carbon (OC) contributes 49% and 62% to estuarine and marine mangrove soil OC (SOC). Globally, 1502 Tg and 3025 Tg SOC were stored in estuarine and marine mangroves.
- Jingfan Zhang
- , Shuchai Gan
- & Faming Wang
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Article
| Open AccessSerological analysis in humans in Malaysian Borneo suggests prior exposure to H5 avian influenza near migratory shorebird habitats
Spillover of avian influenza H5N1 from birds to mammals have been increasingly detected, but reports of cases in humans remain limited. Here, the authors find serological evidence of human exposure to influenza H5N1 in Malaysian Borneo, an important stopover site for migratory shorebirds.
- Hannah Klim
- , Timothy William
- & Kimberly M. Fornace
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Article
| Open AccessMapping multi-dimensional variability in water stress strategies across temperate forests
Tree functional strategies regulate responses to water stress, but how these strategies scale up to the forest community level is not well known. This study shows coherent spatial variation in community-level trait associations across temperate forests that is linked to temperature.
- Daijun Liu
- , Adriane Esquivel-Muelbert
- & Thomas A. M. Pugh
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Comment
| Open AccessProposals of indigenous peoples and local communities from Brazil for multilateral benefit-sharing from digital sequence information
One of the main themes of the 16th Conference of the Parties to the Convention on Biological Diversity is Digital Sequence Information (DSI): genomic or related data deposited in publicly accessible databases in a digital language. These sequences are important for research in areas such as biodiversity conservation and bioprospecting. Some characteristics of organisms that stimulate the commercial use of biodiversity may have been developed by Indigenous Peoples and Local Communities, and therefore, they have associated traditional knowledge. We present proposals of the Brazilian Indigenous Peoples and Local Communities on this topic.
- Adriana de Souza de Lima
- , Cristiane Gomes Julião
- & Gustavo Taboada Soldati
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Article
| Open AccessAnimal life in the shallow subseafloor crust at deep-sea hydrothermal vents
Microbes and viruses inhabit the subseafloor crust beneath hydrothermal vents. Here the authors show that vent endemic animals such as giant tubeworms also live in vent subseafloor cavities, implicating subseafloor dispersal of vent larvae and the need to protect seafloor and subseafloor vent habitats.
- Monika Bright
- , Sabine Gollner
- & Alex Paris
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Article
| Open AccessEvidence for ecological tuning of anuran biofluorescent signals
The significance of biofluorescence across taxonomic groups is understudied. Here the authors document biofluorescence in South American tropical amphibians, suggesting that biofluorescence corresponds with wavelengths of light at twilight and may be used in communication.
- Courtney Whitcher
- , Santiago R. Ron
- & Emily Moriarty Lemmon
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Article
| Open AccessDeconstructing the geography of human impacts on species’ natural distribution
Explainable Artificial Intelligence can improve conservation decisions by revealing hidden insights to where human impacts on biodiversity are greatest. In this investigation of freshwater fish in Switzerland, around 90% of potentially habitable areas were negatively impacted human influences - these areas form the species’ “shadow distribution”.
- Conor Waldock
- , Bernhard Wegscheider
- & Ole Seehausen
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Article
| Open AccessSelective breeding enhances coral heat tolerance to marine heatwaves
Marine heatwaves can have severe impact on corals populations. This study demonstrates that selective breeding could quickly enhance coral tolerance to short-term heat stress by up to 1 °C. This has potential to mitigate some impacts of climate change, however urgent climate action is still needed.
- Adriana Humanes
- , Liam Lachs
- & James R. Guest
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Article
| Open AccessNo universal mathematical model for thermal performance curves across traits and taxonomic groups
Thermal performance models support metabolic modeling in diverse contexts. Here, the authors compare 83 existing models with 2739 thermal performance datasets, finding that model performance doesn’t necessarily depend on the trait type, sampling resolution, or taxon being studied.
- Dimitrios - Georgios Kontopoulos
- , Arnaud Sentis
- & Samraat Pawar
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Article
| Open AccessChromosome-level baobab genome illuminates its evolutionary trajectory and environmental adaptation
Baobab is a long-lived tree that holds great economic, ecological, and cultural value. Here, the authors report haploid chromosome-level reference genome of Adansonia digitata and draft assemblies for a sibling tree, two trees from distinct locations in Africa, and a related species from Madagascar.
- Justine K. Kitony
- , Kelly Colt
- & Todd P. Michael
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Article
| Open AccessSea cucumbers and their symbiotic microbiome have evolved to feed on seabed sediments
Sea cucumbers are predominant deposit feeders in benthic ecosystems. This study elucidates the mechanisms within the sea cucumber digestive system and their symbiotic microbiome which enable them to efficiently utilize nutrients from seabed sediments.
- Wenjie Pan
- , Xuan Wang
- & Ting Chen
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Article
| Open AccessConservation agriculture improves soil health and sustains crop yields after long-term warming
Conservation agriculture is promoted as a sustainable solution in the changing climate, but its response to warming is unclear. Here, the authors report that conservation agriculture improves soil health and sustains crop yields under long-term warming compared to conventional agriculture.
- Jialing Teng
- , Ruixing Hou
- & Manuel Delgado-Baquerizo
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Article
| Open AccessReducing herbivory in mixed planting by genomic prediction of neighbor effects in the field
Identifying pairs of genotypes that perform better in mixture than monoculture is important for increasing crop yields. Using the model species Arabidopsis thaliana, this study provides a proof of principle of how such beneficial genotype pairs could be found using genome-wide association studies.
- Yasuhiro Sato
- , Rie Shimizu-Inatsugi
- & Kentaro K. Shimizu
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Article
| Open AccessOne Health collaboration is more effective than single-sector actions at mitigating SARS-CoV-2 in deer
SARS-CoV-2 has been detected in white-tailed deer in the United States and there is evidence of transmission to humans. Here, the authors use a decision analysis exercise and mathematical modeling to assess options for disease control using a One Health approach.
- Jonathan D. Cook
- , Elias Rosenblatt
- & Michael C. Runge
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Article
| Open AccessGenomic and phenotypic imprints of microbial domestication on cheese starter cultures
Here, the authors characterize over 100 community samples and over 100 individual strains isolated from historical and modern traditional Swiss cheese starter cultures, showing imprints of millennia-long human domestication, notably stable phenotypic traits, low species and genomic diversity and genomic decay associated with reduction of niche breadth.
- Vincent Somerville
- , Nadine Thierer
- & Philipp Engel
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Article
| Open AccessBiodiversity of mudflat intertidal viromes along the Chinese coasts
The dynamic intertides, located between marine and terrestrial ecosystems, serve as a favorable habitat for exploring virus-host relationships. Here, the authors recover 20,102 viral OTUs from twelve intertidal zones along the Chinese coasts, with further analyses expanding our understanding of intertidal viromes within an ecological framework.
- Mengzhi Ji
- , Jiayin Zhou
- & Qichao Tu
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Article
| Open AccessResource availability enhances positive tree functional diversity effects on carbon and nitrogen accrual in natural forests
Tree diversity can enhance carbon and nitrogen sequestration in both biomass and soils, but its effects across different environmental conditions remain unclear. This study shows that promoting tree functional diversity can increase carbon and nitrogen accumulation more in resource-rich environments.
- Xinli Chen
- , Peter B. Reich
- & Scott X. Chang
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Article
| Open AccessExtinction cascades, community collapse, and recovery across a Mesozoic hyperthermal event
Mass extinctions have repeatedly restructured communities through geological time, but biotic interactions are rarely considered in investigations of extinction dynamics and ecosystem recovery. Here the authors present evidence that secondary extinction cascades were important during a Jurassic hyperthermal extinction event and that it took over 7 million years for community structure to fully recover.
- Alexander M. Dunhill
- , Karolina Zarzyczny
- & Andrew P. Beckerman
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Article
| Open AccessArid, mosaic environments during the Plio-Pleistocene transition and early hominin dispersals in northern Africa
The palaeoenvironmental context for early hominins in northern Africa during the Plio-Pleistocene transition is poorly documented. Here, the authors present multiproxy palaeoecological evidence for heterogeneous open grasslands, forested areas, wetlands, and seasonal aridity from Guefaït-4.2 in Morocco.
- Iván Ramírez-Pedraza
- , Carlos Tornero
- & Robert Sala-Ramos
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Article
| Open AccessGenomic adaptation to small population size and saltwater consumption in the critically endangered Cat Ba langur
Fewer than 100 wild Cat Ba langurs survive in Vietnam. Here, the authors use whole genome sequencing to demonstrate potential adaptations to saltwater consumption as well as maintenance of adaptive potential despite low levels of genetic diversity and high levels of inbreeding.
- Liye Zhang
- , Neahga Leonard
- & Christian Roos
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Article
| Open AccessPredicting the first steps of evolution in randomly assembled communities
Evolution often occurs within complex communities, but the way this context controls the rate and impact of evolution is poorly understood. The authors employ a model of resource competition to study evolution in a newly formed community, finding that established strains can still diversify further.
- John McEnany
- & Benjamin H. Good
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Matters Arising
| Open AccessReply to: Maternal capacity, twinning and fertility: the last birth matters
- Alexandre Courtiol
- , Colin Vullioud
- & Ian J. Rickard
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Article
| Open AccessContrasting genomic epidemiology between sympatric Plasmodium falciparum and Plasmodium vivax populations
P. falciparum and vivax are responsible for most cases of malaria but are not genetically closely related and differ in their clinical and epidemiological impacts. In this study, the authors investigate the genomic and epidemiological characteristics of the two parasites in a co-endemic setting of Guyana.
- Philipp Schwabl
- , Flavia Camponovo
- & Daniel E. Neafsey
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Review Article
| Open AccessPlastic pollution in agricultural landscapes: an overlooked threat to pollination, biocontrol and food security
Ecosystem services such as pollination and biocontrol are affected by increasing plastic pollution with potential implications for food security. Here the authors synthesize the little known effects of nano- and microplastics on pollinators and biocontrol agents at the organismal, farm and landscape scale.
- Dong Sheng
- , Siyuan Jing
- & Thomas C. Wanger
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Article
| Open AccessSeasonality of primary production explains the richness of pioneering benthic communities
The environmental drivers of species diversity at the global level are difficult to define. This paper, using standardised methodologies, shows that the seasonality of primary production explains marine pioneer metazoan richness comparatively or better than other measures like sea surface temperature.
- Matteo Cecchetto
- , Agnès Dettai
- & Stefano Schiaparelli
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Article
| Open AccessAn assessment of the species diversity and disease potential of Pythium communities in Europe
Pythium sensu lato (s.l.) is an oomycete that poses a serious threat to agricultural production worldwide. This study, using metabarcoding, provides insights into the diverse soil communities of Pythium s.l. across 127 locations and their disease potential in European corn fields.
- Wilken Boie
- , Markus Schemmel
- & Daguang Cai
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Article
| Open AccessMixed effectiveness of global protected areas in resisting habitat loss
The ability of protected areas to prevent biodiversity loss is still unclear. Here, the authors assess 160,000 protected areas, finding that while larger areas with stricter protections effectively reduced habitat loss, most areas still were not preventing deforestation or conversion to agricultural land.
- Guangdong Li
- , Chuanglin Fang
- & Jianguo Liu
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Article
| Open AccessStrongly deleterious mutations influence reproductive output and longevity in an endangered population
Many populations suffer from negative fitness effects of inbreeding, but the genetic mechanism is not well known. Here the authors study an arctic fox population and find that expression of strongly harmful mutations lowers reproduction and longevity, whereas moderately harmful ones lower survival.
- Malin Hasselgren
- , Nicolas Dussex
- & Karin Norén
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