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Top-predator recovery abates geomorphic decline of a coastal ecosystem
Sea otters recolonizing an estuary in California indirectly reduce erosion by reducing burrowing crab abundance, suggesting that restoring predators could be a key mechanism to improve the stability of coastal wetlands and other ecosystems.
- Brent B. Hughes
- , Kathryn M. Beheshti
- & Brian R. Silliman
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Matters Arising |
A path forward for analysing the impacts of marine protected areas
- Ray Hilborn
- & Michel J. Kaiser
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Article |
Spatiotemporal origin of soil water taken up by vegetation
Global inverse modelling of plant water acquisition depth and isotope-based plant water use estimates demonstrate globally prevalent use of precipitation from distant sources, and that water-stressed ecosystems are well suited to using past and remote precipitation.
- Gonzalo Miguez-Macho
- & Ying Fan
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Article |
Multi-kingdom ecological drivers of microbiota assembly in preterm infants
Absolute microbial abundances delineate longitudinal dynamics of bacteria, fungi and archaea in the infant gut microbiome, uncovering drivers of microbiome development masked by relative abundances and revealing notable parallels to macroscopic ecosystem assemblies.
- Chitong Rao
- , Katharine Z. Coyte
- & Seth Rakoff-Nahoum
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Article |
Tracking of marine predators to protect Southern Ocean ecosystems
Tracking data from 17 marine predator species in the Southern Ocean are used to identify Areas of Ecological Significance, the protection of which could help to mitigate increasing pressures on Southern Ocean ecosystems.
- Mark A. Hindell
- , Ryan R. Reisinger
- & Ben Raymond
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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 |
Long-term cyclic persistence in an experimental predator–prey system
The potential for infinite persistence of planktonic predator and prey cycles is experimentally demonstrated and these cycles show resilience in the presence of stochastic events.
- Bernd Blasius
- , Lars Rudolf
- & Gregor F. Fussmann
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Letter |
Wilderness areas halve the extinction risk of terrestrial biodiversity
Wilderness areas with minimal levels of human disturbance promote the persistence of biodiversity by acting as buffers against species loss, and therefore represent key targets for environmental protection.
- Moreno Di Marco
- , Simon Ferrier
- & James E. M. Watson
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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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Article |
Mapping the world’s free-flowing rivers
A comprehensive assessment of the world’s rivers and their connectivity shows that only 37 per cent of rivers longer than 1,000 kilometres remain free-flowing over their entire length.
- G. Grill
- , B. Lehner
- & C. Zarfl
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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 |
Fire frequency drives decadal changes in soil carbon and nitrogen and ecosystem productivity
A meta-analysis and field data show that frequent fires in savannas and broadleaf forests decrease soil carbon and nitrogen over many decades; modelling shows that nitrogen loss drives carbon loss by reducing net primary productivity.
- Adam F. A. Pellegrini
- , Anders Ahlström
- & Robert B. Jackson
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Letter |
Nutrient co-limitation at the boundary of an oceanic gyre
Nutrient amendment experiments at the boundary of the South Atlantic gyre reveal extensive regions in which nitrogen and iron are co-limiting, with other micronutrients also approaching co-deficiency; such limitations potentially increase phytoplankton community diversity.
- Thomas J. Browning
- , Eric P. Achterberg
- & C. Mark Moore
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Article |
Creation of forest edges has a global impact on forest vertebrates
Fragmentation of forest ecosystems produces forest edges, which affect the distribution of many analysed vertebrate species; smaller-bodied amphibians, larger reptiles and medium-sized mammals experience a larger reduction in suitable habitat than other forest-core species.
- M. Pfeifer
- , V. Lefebvre
- & R. M. Ewers
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Brief Communications Arising |
Lysis, lysogeny and virus–microbe ratios
- Joshua S. Weitz
- , Stephen J. Beckett
- & Jonathan Dushoff
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Letter |
Higher-order interactions stabilize dynamics in competitive network models
Communities that are very rich in species could persist thanks to the stabilizing role of higher-order interactions, in which the presence of a species influences the interaction between other species.
- Jacopo Grilli
- , György Barabás
- & Stefano Allesina
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Article |
Nomadic ecology shaped the highland geography of Asia’s Silk Roads
The authors use modelling to show that the network of trading routes known as the Silk Road emerged from hundreds of years of interactions between pastoralists as they moved their herds and flocks between higher and lower elevations in generally mountainous regions.
- Michael D. Frachetti
- , C. Evan Smith
- & Tim Williams
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Letter |
A theoretical foundation for multi-scale regular vegetation patterns
Empirically validated mathematical models show that a combination of intraspecific competition between subterranean social-insect colonies and scale-dependent feedbacks between plants can explain the spatially periodic vegetation patterns observed in many landscapes, such as the Namib Desert ‘fairy circles’.
- Corina E. Tarnita
- , Juan A. Bonachela
- & Robert M. Pringle
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Letter |
High frequency of functional extinctions in ecological networks
A modelling study of the mechanisms of extinction within ecological networks reveals how even a small reduction in the population size of a species may lead to the loss of its ecological functionality—that is, to its functional extinction—by causing extinction of other organisms in the food web, often only indirectly connected to the focal species, revealing the value of conservation strategies that target a broader ecological network.
- Torbjörn Säterberg
- , Stefan Sellman
- & Bo Ebenman