A global assessment of invasive plant impacts on resident species, communities and ecosystems: the interaction of impact measures, invading species' traits and environment
Petr Pyšek,Petr Pyšek,Petr Pyšek,Vojtěch Jarošík,Vojtěch Jarošík,Vojtěch Jarošík,Philip E. Hulme,Jan Pergl,Jan Pergl,Martin Hejda,Urs Schaffner,Montserrat Vilà +11 more
TLDR
It is shown that there is no universal measure of impact and the pattern observed depends on the ecological measure examined, and some species traits, especially life form, stature and pollination syndrome, may provide a means to predict impact, regardless of the particular habitat and geographical region invaded.Abstract:
With the growing body of literature assessing the impact of invasive alien plants on resident species and ecosystems, a comprehensive assessment of the relationship between invasive species traits and environmental settings of invasion on the characteristics of impacts is needed. Based on 287 publications with 1551 individual cases that addressed the impact of 167 invasive plant species belonging to 49 families, we present the first global overview of frequencies of significant and non-significant ecological impacts and their directions on 15 outcomes related to the responses of resident populations, species, communities and ecosystems. Species and community outcomes tend to decline following invasions, especially those for plants, but the abundance and richness of the soil biota, as well as concentrations of soil nutrients and water, more often increase than decrease following invasion. Data mining tools revealed that invasive plants exert consistent significant impacts on some outcomes (survival of resident biota, activity of resident animals, resident community productivity, mineral and nutrient content in plant tissues, and fire frequency and intensity), whereas for outcomes at the community level, such as species richness, diversity and soil resources, the significance of impacts is determined by interactions between species traits and the biome invaded. The latter outcomes are most likely to be impacted by annual grasses, and by wind pollinated trees invading mediterranean or tropical biomes. One of the clearest signals in this analysis is that invasive plants are far more likely to cause significant impacts on resident plant and animal richness on islands rather than mainland. This study shows that there is no universal measure of impact and the pattern observed depends on the ecological measure examined. Although impact is strongly context dependent, some species traits, especially life form, stature and pollination syndrome, may provide a means to predict impact, regardless of the particular habitat and geographical region invaded.read more
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Impacts of biological invasions: what's what and the way forward
Daniel Simberloff,Jean-Louis Martin,Piero Genovesi,Virginie Maris,David A. Wardle,James Aronson,James Aronson,Franck Courchamp,Bella S. Galil,Emili García-Berthou,Michel Pascal,Petr Pyšek,Petr Pyšek,Ronaldo Sousa,Ronaldo Sousa,Eric Tabacchi,Montserrat Vilà +16 more
TL;DR: Recent progress in understanding invasion impacts and management is highlighted, and the challenges that the discipline faces in its science and interactions with society are discussed.
Journal ArticleDOI
How well do we understand the impacts of alien species on ecosystem services? A pan-European, cross-taxa assessment
Montserrat Vilà,Corina Basnou,Petr Pyšek,Melanie Josefsson,Piero Genovesi,Stephan Gollasch,Wolfgang Nentwig,Sergej Olenin,Alain Roques,David B. Roy,Phillip E. Hulme +10 more
TL;DR: In this paper, the authors present a review of the financial costs of alien species in Europe, as the first step toward calculating an estimate of the economic consequences of extraterrestrial species.
Journal ArticleDOI
Catalogue of alien plants of the Czech Republic (3rd edition)
TL;DR: A complete list of all alien taxa ever recorded in the flora of the Czech Republic is presented as an update of the original checklist published in 2002, with 44 taxa on the list that are reported in the present study for the first time as aliens introduced to the CzechRepublic or escaped from cultivation.
Journal ArticleDOI
Scientists' warning on invasive alien species.
Petr Pyšek,Petr Pyšek,Petr Pyšek,Philip E. Hulme,Daniel Simberloff,Sven Bacher,Tim M. Blackburn,Tim M. Blackburn,Tim M. Blackburn,James T. Carlton,Wayne Dawson,Franz Essl,Franz Essl,Llewellyn C. Foxcroft,Llewellyn C. Foxcroft,Piero Genovesi,Piero Genovesi,Jonathan M. Jeschke,Jonathan M. Jeschke,Ingolf Kühn,Ingolf Kühn,Andrew M. Liebhold,Andrew M. Liebhold,Nicholas E. Mandrak,Laura A. Meyerson,Aníbal Pauchard,Jan Pergl,Helen E. Roy,Hanno Seebens,Mark van Kleunen,Mark van Kleunen,Montserrat Vilà,Montserrat Vilà,Michael J. Wingfield,David M. Richardson +34 more
TL;DR: Improved international cooperation is crucial to reduce the impacts of invasive alien species on biodiversity, ecosystem services, and human livelihoods, as synergies with other global changes are exacerbating current invasions and facilitating new ones, thereby escalating the extent and impacts of invaders.
Journal ArticleDOI
Progress toward understanding the ecological impacts of nonnative species
TL;DR: 19 testable hypotheses that explain temporal and spatial variation in impact are identified and reviewed and highlight the importance of the functional ecology of the nonnative species and the structure, diversity, and evolutionary experience of the recipient community as general determinants of impact.
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