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
Citations
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Journal ArticleDOI
The fish community of the ancient Prespa Lake (Southeast Europe): Non-indigenous species take over
Michael Pietrock,David Ritterbusch,Wolf-Christian Lewin,Spase Shumka,Zoran Spirkovski,D. Ilik-Boeva,Uwe Brämick,R. Peveling +7 more
TL;DR: The results indicated that non-indigenous fishes have become well established in the lake within just 20 to 40 years of their initial introduction, while the native fishes combined outnumbered the native species, while Prespa bleak, Prespa spirlin and bitterling accounted for the highest biomass proportions as discussed by the authors .
Dissertation
Leaf Traits, Neighbors, and Abiotic Factors: Ways That Context Can Mediate the Impact of Invasive Species on Nitrogen Cycling
TL;DR: An abstract of a dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the University Program in Ecology in the Graduate School of Duke University.
Book ChapterDOI
Biological Control as a Key Tool for the Management of Invasive Species in Latin America and the Caribbean
TL;DR: In this paper, the use of biological control agents through the implementation of programmes adapted to local conditions is presented as a key strategy for the sustainable management of pests currently present in and potential pests to the region.
Posted Content
When origin, reproduction ability, and diet define the role of birds in invasions
TL;DR: This paper investigated the morphology, life history and ecology of birds involved in biological invasions and found that IAS-threatened species showed opposite strategies to aliens regarding traits related to diet, origin and reproduction.
References
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
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Journal ArticleDOI
A General Hypothesis of Species Diversity
TL;DR: A new hypothesis, based on differences in the rates at which populations of competing species approach competitive equilibrium (reduction or exclusion of some species), is proposed to explain patterns of species diversity.