Integrating dispersal along freshwater ecosystems into species distribution models

Abstract

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Modelling temperature‐driven changes in species associations across freshwater communities

“…These results show that on a broad, multi-national scale, shifts towards communities dominated by species which have higher Previous research indicates that more cold-tolerant species are capable of persisting in larger, deeper lakes due to the possibility of spatial segregation (Hein et al, 2013). Areas with strong topographical variation could provide dispersal barriers for novel species, and subsequently provide refugia for species likely to be outcompeted (Perrin et al, 2020). However such refugia are only likely to be tenable if human translocation is sufficiently regulated so as to prevent the introduction of novel species (Hesthagen & Sandlund, 2004;Perrin et al, 2021).…”

Forecasting the future establishment of invasive alien freshwater fish species

“…This effect was strongest for pike, perch and roach. This variation may result from differences in dispersal ability between species (Perrin et al., 2020). However, if an increase in extant population proximity only affected establishment via secondary dispersal, we would have expected the effect of extant population proximity to be more strongly influenced by whether or not there was an extant population either upstream or downstream.…”

Alien species and the Water Framework Directive: Recommendations for assessing ecological status in fresh waters in Norway

“…These methods are better suited to predict the invasion risk for groups of water bodies, such as river basins or groups of fish, rather than individual water bodies or species. On the other hand, natural dispersal from colonized to uncolonized water bodies is well suited for water body-specific modelling (Perrin et al, 2020). Such models need to be based on:…”

“…These methods are better suited to predict the invasion risk for groups of water bodies, such as river basins or groups of fish, rather than individual water bodies or species. On the other hand, natural dispersal from colonized to uncolonized water bodies is well suited for water body‐specific modelling (Perrin et al, 2020). Such models need to be based on: (i) occurrence data of relevant alien species in nearby water bodies; (ii) knowledge of the pathways, mechanisms, and speed of dispersal; and (iii) data on the connectivity between the colonized and the uncolonized water bodies.…”