Biogeographical patterns of freshwater fauna

Aim Temperature is regarded as an important driver of broad-scale biodiversity patterns. However, less is known of the role of dispersal in shaping broad-scale species and trait distributions, particularly given that species had to disperse out of glacial refugia after the Last Glacial Maximum (LGM). Here, we used a unique dataset describing the distributions of freshwater fauna combined with trait information, to evaluate biodiversity relationships to distance to glacial refugia and temperature.
Location 25 biogeographical regions across Europe
Time period Data from species occurrence gathered in 1978
Major taxa studied 2,816 freshwater invertebrate species and 230 freshwater fish species
Methods using the occurrence of invertebrate and fish species on the biogeographical regions, and publicly available trait information, we analyzed patterns in diversity indices (i.e., species richness, trait richness, and trait redundancy), trait distribution, and species and trait β-diversity, and t..., , , # Biogeographical patterns in European freshwater biodiversity

[https://doi.org/10.5061/dryad.n5tb2rc3p](https://doi.org/10.5061/dryad.n5tb2rc3p)

This dataset contains the diversity indices, trait matrices, and beta-diversity dissimilarity matrices used in the Manuscript \"Dispersal, glacial refugia, and temperature shape biogeographical patterns in European freshwater biodiversity\", as well as the code to run the analyses. These analyses include (1) linear models with diversity indices as response variables and temperature, distance to refugia, area, and Moran's eigenvectors as predictors and controlling variables; (2) variation partitioning analyses; (3) redundancy analyses of the trait composition matrices; (4) partial Mantel test for dissimilarity matrices; and (5) distance-decay models for dissimilarity matrices. For further details, please consult the original publication.

The data were extracted and modified from Limnofauna Europaea (Illies, 1978).

Illies, J. (1978) *Limnofaun...