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| Open AccessRevealing uncertainty in the status of biodiversity change
This study presents an approach to deal with spatial, temporal and phylogenetic non-independence in large-scale analyses of biodiversity change, improving trend estimation and inference across scales.
- T. F. Johnson
- , A. P. Beckerman
- & R. P. Freckleton
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Article
| Open AccessMutualisms weaken the latitudinal diversity gradient among oceanic islands
The effect of the latitudinal diversity gradient on plants on oceanic islands is weakened by classical abiotic physical drivers of island biogeography and, to a greater extent, by mutualism with other species.
- Camille S. Delavaux
- , Thomas W. Crowther
- & Evan M. Gora
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Article
| Open AccessRevising the global biogeography of annual and perennial plants
The prevalence of annual plants worldwide rises in response to hot-dry summers, year-to-year variations, and disturbances, potentially impacting the future of ecosystem services provided by perennials.
- Tyler Poppenwimer
- , Itay Mayrose
- & Niv DeMalach
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Article
| Open AccessThe geography of climate and the global patterns of species diversity
Nearly 90% of global variation in species richness of birds, mammals, amphibians and reptiles is shown to be explained by the joint effects of climate and the geographic structure (area and isolation) of climate.
- Marco Túlio P. Coelho
- , Elisa Barreto
- & Catherine H. Graham
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Article
| Open AccessNative diversity buffers against severity of non-native tree invasions
Analysis combining multiple global tree databases reveals that whether a location is invaded by non-native tree species depends on anthropogenic factors, but the severity of the invasion depends on the native species diversity.
- Camille S. Delavaux
- , Thomas W. Crowther
- & Daniel S. Maynard
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Article |
Assembly of functional diversity in an oceanic island flora
On the oceanic island of Tenerife, dispersal, speciation and persistence drive the diversity and distribution of plant functional traits.
- Martha Paola Barajas Barbosa
- , Dylan Craven
- & Holger Kreft
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Article |
Origination of the modern-style diversity gradient 15 million years ago
Quantification of planktonic fossils from the past 40 million years shows that the present-day diversity gradient arose only 15 million years ago as the climate started to cool.
- Isabel S. Fenton
- , Tracy Aze
- & Erin E. Saupe
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Article |
Late Cenozoic cooling restructured global marine plankton communities
Analysis of Triton, a high-resolution dataset documenting the macroperforate planktonic foraminifera fossil record, reveals a global climate-linked equatorward shift of ecological and morphological community equitability over the past 8 million years.
- Adam Woodhouse
- , Anshuman Swain
- & Christopher M. Lowery
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Article |
Global hotspots for soil nature conservation
A global field survey that analyses samples of soil from all continents identifies hotspots for soil nature conservation, and shows that different ecological dimensions of soil are associated with different priority areas for conservation.
- Carlos A. Guerra
- , Miguel Berdugo
- & Manuel Delgado-Baquerizo
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Article |
Climate change increases cross-species viral transmission risk
Changes in climate and land use will lead to species aggregating in new combinations at high elevations, in biodiversity hotspots and in areas of high human population density in Asia and Africa, driving the cross-species transmission of animal-associated viruses.
- Colin J. Carlson
- , Gregory F. Albery
- & Shweta Bansal
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Article
| Open AccessThe three major axes of terrestrial ecosystem function
Three key axes of variation of ecosystem functional changes and their underlying causes are identified from a dataset of surface gas exchange measurements across major terrestrial biomes and climate zones.
- Mirco Migliavacca
- , Talie Musavi
- & Markus Reichstein
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Article |
How deregulation, drought and increasing fire impact Amazonian biodiversity
Remote-sensing estimates of fires and the estimated geographic ranges of thousands of plant and vertebrate species in the Amazon Basin reveal that fires have impacted the ranges of 77–85% of threatened species over the past two decades.
- Xiao Feng
- , Cory Merow
- & Brian J. Enquist
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Article |
Environmental drivers of megafauna and hominin extinction in Southeast Asia
Stable isotope data for Southeast Asian mammals across the Quaternary period shed light on environmental change from the Early Pleistocene to the Holocene epoch, contextualizing hominin evolution and megafauna extinction in the region.
- Julien Louys
- & Patrick Roberts
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Article |
Metabolic trait diversity shapes marine biogeography
A tight coupling between metabolic rate, efficacy of oxygen supply and the temperature sensitivities of marine animals predicts a variety of geographical niches that better aligns with the distributions of species than models of either temperature or oxygen alone.
- Curtis Deutsch
- , Justin L. Penn
- & Brad Seibel
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Article |
Accelerating homogenization of the global plant–frugivore meta-network
A quantitative analysis of the impact of species introductions on mutualistic seed-dispersal networks indicates that introduced species are increasingly erasing natural patterns of network biodiversity.
- Evan C. Fricke
- & Jens-Christian Svenning
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Article |
New Guinea has the world’s richest island flora
A catalogue of the vascular flora of New Guinea indicates that this island is the most floristically diverse in the world, and that 68% of the species identified are endemic to New Guinea.
- Rodrigo Cámara-Leret
- , David G. Frodin
- & Peter C. van Welzen
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Article |
A simple dynamic model explains the diversity of island birds worldwide
Using a global molecular phylogenetic dataset of birds on islands, the sensitivity of island-specific rates of colonization, speciation and extinction to island features (area and isolation) is estimated.
- Luis Valente
- , Albert B. Phillimore
- & Rampal S. Etienne
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Article |
Soil nematode abundance and functional group composition at a global scale
High-resolution spatial maps of the global abundance of soil nematodes and the composition of functional groups show that soil nematodes are found in higher abundances in sub-Arctic regions, than in temperate or tropical regions.
- Johan van den Hoogen
- , Stefan Geisen
- & Thomas Ward Crowther
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Letter |
Climatic controls of decomposition drive the global biogeography of forest-tree symbioses
A spatially explicit global map of tree symbioses with nitrogen-fixing bacteria and mycorrhizal fungi reveals that climate variables are the primary drivers of the distribution of different types of symbiosis.
- B. S. Steidinger
- , T. W. Crowther
- & Irie Casimir Zo-Bi
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Letter |
Greater vulnerability to warming of marine versus terrestrial ectotherms
Comparisons across terrestrial and marine ectotherms reveal that marine species experience temperatures closer to their upper thermal limits, and that local extirpations related to warming are more common in the ocean.
- Malin L. Pinsky
- , Anne Maria Eikeset
- & Jennifer M. Sunday
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Letter |
Contrasting processes drive ophiuroid phylodiversity across shallow and deep seafloors
Our knowledge of the distribution and evolution of deep-sea life is limited, impeding our ability to identify priority areas for conservation.
- Timothy D. O’Hara
- , Andrew F. Hugall
- & Nicholas J. Bax
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Article |
Plant functional trait change across a warming tundra biome
Analyses of the relationships between temperature, moisture and seven key plant functional traits across the tundra and over time show that community height increased with warming across all sites, whereas other traits lagged behind predicted rates of change.
- Anne D. Bjorkman
- , Isla H. Myers-Smith
- & Evan Weiher
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Letter |
Future response of global coastal wetlands to sea-level rise
A global modelling approach shows that in response to rises in global sea level, gains of up to 60% in coastal wetland areas are possible, if appropriate coastal management solutions are developed to help support wetland resilience.
- Mark Schuerch
- , Tom Spencer
- & Sally Brown
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Letter |
Structure and function of the global topsoil microbiome
Metagenomic, chemical and biomass analyses of topsoil samples from around the world reveal spatial and environmental trends in microbial community composition and genetic diversity.
- Mohammad Bahram
- , Falk Hildebrand
- & Peer Bork
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Letter |
Ecosystem restructuring along the Great Barrier Reef following mass coral bleaching
Fish and invertebrate communities transformed across the span of the Great Barrier Reef following the 2016 bleaching event due to a decline in coral-feeding fishes resulting from coral loss, and because of different regional responses of key trophic groups to the direct effect of temperature.
- Rick D. Stuart-Smith
- , Christopher J. Brown
- & Graham J. Edgar
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Letter |
Late-surviving stem mammal links the lowermost Cretaceous of North America and Gondwana
An exceptionally preserved skull of Cifelliodon wahkarmoosuch sheds light on the evolution of the ancestral mammalian brain.
- Adam K. Huttenlocker
- , David M. Grossnickle
- & Zhe-Xi Luo
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Letter |
Global elevational diversity and diversification of birds
A global study of all bird species in mountainous areas shows that richness decreases predictably with elevation, whereas diversification rates increase.
- Ignacio Quintero
- & Walter Jetz
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Letter |
Phase-plate cryo-EM structure of a biased agonist-bound human GLP-1 receptor–Gs complex
The structure of the glucagon-like peptide 1 receptor (GLP-1R) with its biased agonist exendin-P5 sheds light on both receptor activation and the mechanism of biased agonism.
- Yi-Lynn Liang
- , Maryam Khoshouei
- & Denise Wootten
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Letter |
Evolutionary history resolves global organization of root functional traits
Analyses of a global dataset of plant root traits identify an ancestral conservative strategy based on thick roots and mycorrhizal symbiosis, and an evolutionarily more-recent opportunistic strategy of thin roots that efficiently use photosynthetic carbon for soil exploration.
- Zeqing Ma
- , Dali Guo
- & Lars O. Hedin
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Letter |
Global patterns of tropical forest fragmentation
Satellite data and modelling reveal that tropical forest fragments have similar size distributions across continents, and that forest fragmentation is close to a critical point, beyond which fragment numbers will strongly increase.
- Franziska Taubert
- , Rico Fischer
- & Andreas Huth
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Letter |
Island biogeography of marine organisms
On marine islands, most species are good dispersers and most niches are filled by immigration with little adaptive radiation; speciation increases over time, associated with the arrival of weak dispersers that randomly establish isolated populations.
- Hudson T. Pinheiro
- , Giacomo Bernardi
- & Luiz A. Rocha
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Letter |
The true tempo of evolutionary radiation and decline revealed on the Hawaiian archipelago
A geologically informed model of the relationship between changing island area and species richness for the Hawaiian archipelago reveals the rates of species richness change for 14 endemic groups over their entire evolutionary histories without the need for fossil data or molecular phylogenies.
- Jun Y. Lim
- & Charles R. Marshall
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Letter |
Hyoliths are Palaeozoic lophophorates
Analysis of exceptionally preserved fossils of the Cambrian hyolith Haplophrentis leads to a proposed evolutionary relationship with Lophophorata, the group containing brachiopods and phoronids, on the basis of a newly described tentacular feeding apparatus.
- Joseph Moysiuk
- , Martin R. Smith
- & Jean-Bernard Caron
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Letter |
Deep-sea diversity patterns are shaped by energy availability
Depth-dependent patterns in ocean species diversity can be explained by latitudinal variations in energy availability, with shelf and upper-slope diversity increasing with thermal energy availability, and deep-sea diversity increasing with chemical energy availability; the discovery of these distinct patterns could help to guide the conservation and management of these remote ecosystems.
- Skipton N. C. Woolley
- , Derek P. Tittensor
- & Timothy D. O’Hara
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Letter |
First North American fossil monkey and early Miocene tropical biotic interchange
Here, 21-million-year-old fossils of a New World monkey from Panama are described, constituting the earliest known evidence for mammalian interchange between North and South America.
- Jonathan I. Bloch
- , Emily D. Woodruff
- & Bruce J. MacFadden
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Letter |
In situ imaging reveals the biomass of giant protists in the global ocean
An in situ imaging technique has been used to show that large rhizarian plankton represent a much larger biomass than previously thought, meaning that they are likely to make an important contribution to ocean ecosystems.
- Tristan Biard
- , Lars Stemmann
- & Fabrice Not
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Letter |
Late Quaternary climate change shapes island biodiversity
Relatively rapid changes in island area, isolation and connectivity observed since the Last Glacial Maximum have had measurable effects on present-day biodiversity, with formerly larger and less well connected islands having a greater number of endemic species.
- Patrick Weigelt
- , Manuel Jonas Steinbauer
- & Holger Kreft
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Letter |
Sensitivity of global terrestrial ecosystems to climate variability
Using satellite data and a novel analytical approach, a new index of the sensitivity of vegetation to climate variability is developed, revealing areas of high sensitivity that include tundra, boreal forest, tropical forest and temperate grasslands.
- Alistair W. R. Seddon
- , Marc Macias-Fauria
- & Kathy J. Willis
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Letter |
Earliest hominin occupation of Sulawesi, Indonesia
New excavations in Sulawesi, where in situ stone artefacts associated with fossil remains of megafauna have been recovered from stratified deposits between 200,000 and 100,000 years ago, suggest that Sulawesi was host to a long-established population of archaic hominins.
- Gerrit D. van den Bergh
- , Bo Li
- & Michael J. Morwood
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Article |
Thermal biases and vulnerability to warming in the world’s marine fauna
How marine communities will respond to climate change depends on the thermal sensitivities of existing communities; existing reef communities do not show a perfect fit between current temperatures and the thermal niches of the species within them and this thermal bias is a major contributor to projected local species loss.
- Rick D. Stuart-Smith
- , Graham J. Edgar
- & Amanda E. Bates
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Letter |
Global exchange and accumulation of non-native plants
A global database of alien plants, showing that over 13,000 species, nearly 4% of the global flora, have become naturalized in a new location.
- Mark van Kleunen
- , Wayne Dawson
- & Petr Pyšek
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Perspective |
Defining the Anthropocene
Formal criteria must be met to define a new human-driven epoch; the geological evidence appears to do so, with 1610 and 1964 both likely to satisfy the requirements for the start of the Anthropocene.
- Simon L. Lewis
- & Mark A. Maslin
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Letter |
Island biogeography of the Anthropocene
A contemporary test of the theory of island biogeography, in which species richness is determined by an island’s area and isolation, shows that geographic area is still a good positive predictor of species richness, but that geographic isolation as a negative predictor has been replaced by economic isolation.
- Matthew R. Helmus
- , D. Luke Mahler
- & Jonathan B. Losos
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Letter |
Predicting biodiversity change and averting collapse in agricultural landscapes
A new, holistic view of countryside biogeography is emerging for the world’s human-modified habitats and the biodiversity they support.
- Chase D. Mendenhall
- , Daniel S. Karp
- & Gretchen C. Daily
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Letter |
Geographical limits to species-range shifts are suggested by climate velocity
Global maps constructed using climate-change velocities to derive spatial trajectories for climatic niches between 1960 and 2100 show past and future shifts in ecological climate niches; properties of these trajectories are used to infer changes in species distributions, and thus identify areas that will act as climate sources and sinks, and geographical barriers to species migrations.
- Michael T. Burrows
- , David S. Schoeman
- & Elvira S. Poloczanska
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Letter |
Three keys to the radiation of angiosperms into freezing environments
This large comparative phylogenetic study across angiosperms shows that species that are herbaceous or have small conduits evolved these traits before colonizing environments with freezing conditions, whereas deciduous species changed their climate niche before becoming deciduous.
- Amy E. Zanne
- , David C. Tank
- & Jeremy M. Beaulieu
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News |
There are fewer microbes out there than you think
New estimate reduces the number of microbes on Earth by around half.
- Kathryn Lougheed
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Books & Arts |
Fiction: Reconstituted Edens
T. C. Boyle's latest novel probes the convoluted impacts of species eradication programmes, finds Emma Marris.
- Emma Marris