Journal ArticleDOI
Progress toward understanding the ecological impacts of nonnative species
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TLDR
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.Abstract:
A predictive understanding of the ecological impacts of nonnative species has been slow to develop, owing largely to an apparent dearth of clearly defined hypotheses and the lack of a broad theoretical framework. The context dependency of impact has fueled the perception that meaningful generalizations are nonexistent. Here, we identified and reviewed 19 testable hypotheses that explain temporal and spatial variation in impact. Despite poor validation of most hypotheses to date, evidence suggests that each can explain at least some impacts in some situations. Several hypotheses are broad in scope (applying to plants and animals in virtually all contexts) and some of them, intriguingly, link processes of colonization and impact. Collectively, these hypotheses 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; thus, they could provide the foundation for a theoretical framework for understanding and predicting impact. Further substantive progress toward this goal requires explicit consideration of within-taxon and across-taxa variation in the per capita effect of invaders, and analyses of complex interactions between invaders and their biotic and abiotic environments.read more
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Ecological impacts of invasive alien species along temperature gradients: testing the role of environmental matching
TL;DR: Both analyses point to temperature as a key mediator of IAS impact levels in inland waters and suggest that IAS management should prioritize habitats in the invaded range that more closely match the thermal optima of targeted invaders.
Journal ArticleDOI
Cryptic invasions: A review
Pedro Morais,Martin Reichard +1 more
TL;DR: It is argued that cryptic invasions, often undetected, may trigger subsequent rapid range expansions and be much more common than currently acknowledged.
Journal ArticleDOI
Black, Grey and Watch Lists of alien species in the Czech Republic based on environmental impacts and management strategy
Jan Pergl,Jiří Sádlo,Adam Petrusek,Zdeněk Laštůvka,Jiří Musil,Irena Perglová,Radek Šanda,Hana Šefrová,Jan Šíma,Vladimír Vohralík,Petr Pyšek +10 more
TL;DR: The multilayered approach to the classification of alien species, combining their impacts, population status and relevant management, can serve as a model for other countries that are in process of developing their Black Lists.
Journal ArticleDOI
Application of the Environmental Impact Classification for Alien Taxa (EICAT) to a global assessment of alien bird impacts
TL;DR: The EICAT protocol can be effectively applied to categorise and quantify the impacts of all alien species within an entire taxonomic class, and demonstrates significant variation in both the type and severity of impacts generated by alien birds.
Journal ArticleDOI
Four priority areas to advance invasion science in the face of rapid environmental change
Anthony Ricciardi,Josephine C. Iacarella,David C. Aldridge,Tim M. Blackburn,Tim M. Blackburn,James T. Carlton,Jane A. Catford,Jaimie T. A. Dick,Philip E. Hulme,Jonathan M. Jeschke,Jonathan M. Jeschke,Andrew M. Liebhold,Andrew M. Liebhold,Julie L. Lockwood,Hugh J. MacIsaac,Laura A. Meyerson,Petr Pyšek,Petr Pyšek,David M. Richardson,Gregory M. Ruiz,Daniel Simberloff,Montserrat Vilà,David A. Wardle +22 more
TL;DR: In this paper, the authors identify four priority areas to advance invasion science in the face of rapid global environmental change and recommend that internationally cooperative biosecurity strategies consider the bridgehead effects of global dispersal networks, in which organisms tend to invade new regions from locations where they have already established.
References
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Journal ArticleDOI
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