Terrestrial invertebrates comprise a large proportion of alien species worldwide, yet a quantitative global synthesis of their effects on native species and ecosystems has not been explored. In this study a meta-analysis was conducted to examine the ecological impacts of terrestrial invertebrate invaders.

The introduction of invasive species, which often differ functionally from the components of the recipient community, generates ecological impacts that propagate along the food web. This review aims to determine how consistent the impacts of aquatic invasions are across taxa and habitats. To that end, we present a global meta-analysis from 151 publications, covering a wide range of invaders (primary producers, filter collectors, omnivores and predators), resident aquatic community components...