Fenoglio, Stefano, Bonada, Núria, Guareschi, Simone, López-Rodríguez, Manuel J., Millán, Andrés and Tierno de Figueroa, J. Manuel (2016) Freshwater ecosystems and aquatic insects: a paradox in biological invasions. Biology Letters, 12 (4). p. 20151075. DOI 10.1098/rsbl.2015.1075.

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Abstract

Biological invasions have increased significantly in response to global change and constitute one of the major causes of biodiversity loss. Insects make up a large fraction of invasive species, in general, and freshwaters are among the most invaded ecosystems on our planet. However, even though aquatic insects dominate most inland waters, have unparalleled taxonomic diversity and occupy nearly all trophic niches, there are almost no invasive insects in freshwaters. We present some hypotheses regarding why aquatic insects are not common among aquatic invasive organisms, suggesting that it may be the result of a suite of biological, ecological and anthropogenic factors. Such specific knowledge introduces a paradox in the current scientific discussion on invasive species; therefore, a more in-depth understanding could be an invaluable aid to disentangling how and why biological invasions occur.

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