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Open Access
Featured
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High and rising economic costs of biological invasions worldwide
Analysis of the InvaCost database shows that the costs of biological invasions have markedly increased between 1970 and 2017 and show no sign of slowing down, highlighting the importance of evidence-based and cost-effective management actions.
- Christophe Diagne
- , Boris Leroy
- & Franck Courchamp
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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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Letter |
Location-level processes drive the establishment of alien bird populations worldwide
Bayesian hierarchical regression analysis of a global database of bird introduction events reveals the environmental, climatic and biotic factors that are the primary determinants of the successful establishment of populations of alien species.
- David W. Redding
- , Alex L. Pigot
- & Tim M. Blackburn
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Article |
Predator-induced collapse of niche structure and species coexistence
Whole-ecosystem manipulations of Caribbean islands occupied by brown anoles, involving the addition of competitors (green anoles) and/or top predators (curly-tailed lizards), demonstrate that predator introductions can alter the ecological niches and destabilize the coexistence of competing prey species.
- Robert M. Pringle
- , Tyler R. Kartzinel
- & Rowan D. H. Barrett
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Letter |
Seabirds enhance coral reef productivity and functioning in the absence of invasive rats
Productivity of coral reefs is enhanced near islands with no invasive rats, as populations of seabirds, which transfer nitrogen from deeper areas of ocean to the nearshore waters via their guano, are much larger than on rat-infested islands.
- Nicholas A. J. Graham
- , Shaun K. Wilson
- & M. Aaron MacNeil
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Letter |
Ecosystem restoration strengthens pollination network resilience and function
Removal of invasive exotic shrubs from mountaintop communities increased the number of pollinators and positively altered pollinator behaviour, which enhanced native fruit production, indicating that the degradation of ecosystem functions is partly reversible.
- Christopher N. Kaiser-Bunbury
- , James Mougal
- & Nico Blüthgen
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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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Letter |
Phylogenetic structure and host abundance drive disease pressure in communities
Rare species may have an advantage in a community by suffering less from disease; here it is shown that, because pathogens are shared among species, it is not just the abundance of a particular species but the structure of the whole community that affects exposure to disease.
- Ingrid M. Parker
- , Megan Saunders
- & Gregory S. Gilbert
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Letter |
Self-reinforcing impacts of plant invasions change over time
Plant invasions are thought to alter the ecosystem in a way that disadvantages the native species, making re-establishment after eradication difficult; here, on returning to a site at which an invasive plant altered nitrogen-mineralization levels several decades ago, mineralization is found to have returned to pre-invasion levels, although these new conditions favour new invaders over the natives.
- Stephanie G. Yelenik
- & Carla M. D’Antonio
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Research Highlights |
Toxins for cane-toad control
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Research Highlights |
Invasive mosquito adapts fast
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Correspondence |
Australia: small steps to control invasives
- Bruce L. Webber
- , John K. Scott
- & Raphael K. Didham
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Research Highlights |
The collapse of an invasive ant
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News Feature |
The pollinator crisis: What's best for bees
Pollinating insects are in crisis. Understanding bees' relationships with introduced species could help.
- Sharon Levy
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Research Highlights |
Chemical warfare among cane toads
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Letter |
Strong contributors to network persistence are the most vulnerable to extinction
- Serguei Saavedra
- , Daniel B. Stouffer
- & Jordi Bascompte
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Research Highlights |
Competition counts
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Correspondence |
Non-natives: plusses of invasion ecology
- Julie L. Lockwood
- , Martha F. Hoopes
- & Michael P. Marchetti
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Comment |
Don't judge species on their origins
Conservationists should assess organisms on environmental impact rather than on whether they are natives, argue Mark Davis and 18 other ecologists.
- Mark A. Davis
- , Matthew K. Chew
- & John C. Briggs
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News |
Ecologists find genomic clues to invasive and endangered plants
Findings could be used in conservation and control efforts.
- Natasha Gilbert
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News |
Hopping the fence
Botanic gardens could do more to stop the escape of non-native species.
- Emma Marris
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Letter |
Alternative stable states explain unpredictable biological control of Salvinia molesta in Kakadu
Alternative stable states are common in ecosystems, and pose problems for management, but most studied examples are of strongly stable states that switch only rarely after major perturbations. This study fits a model of weakly stable states to a billabong system in which biological control is applied to an invasive weed. Frequent changes in water availability cause shifts between states in which control either is or is not effective. Understanding these shifts could allow intervention to keep the system in the controlled state.
- Shon S. Schooler
- , Buck Salau
- & Anthony R. Ives
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Correspondence |
A call for action to curb invasive species in South America
- Karina Speziale
- & Sergio Lambertucci
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Research Highlights |
Ecology: Don't damage dingoes
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Research Highlights |
Climate change: Warming boosts invasions
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Research Highlights |
Ecology: Asocial invaders
Native diversity buffers against severity of non-native tree invasions
Non-natives: put biodiversity at risk
Where eagles die