@article{fdi:010076091, title = {{C}orrelations between broad-scale taxonomic and genetic differentiations suggest a dominant imprint of historical processes on beta diversities}, author = {{R}obuchon, {M}. and {L}eroy, {B}. and {J}ezeque, {C}. and {H}ugueny, {B}ernard}, editor = {}, language = {{ENG}}, abstract = {{A}im: {D}ispersal limitation, environmental selection and drift are known to influence both taxonomic similarity between communities and genetic similarity between populations. {H}owever, disentangling the relative roles of these processes on spatial patterns of differentiation-whether regarding taxonomic differentiation ({TD}) between communities or genetic differentiation ({GD}) between populations-is challenging. {I}nvestigating whether spatial patterns of {TD} and {GD} are correlated (beta-{SGDC}s) is a promising approach to address this issue. {H}ere, we investigated beta-{SGDC}s over broad spatial scales and 22 freshwater fish species to elucidate the processes shaping {TD} and {GD} between drainage basins. {L}ocation: {G}lobal scope, data mainly from {E}urope and {N}orth {A}merica. {T}axon: {A}ctinopterygii and {P}etromyzontiformes (freshwater fishes). {M}ethods: {W}e used {M}antel tests to investigate the raw correlation between {TD} and {GD}. {W}e carried out multiple regressions to characterize the effects of geographic distance (proxy of dispersal limitation), environmental distance (proxy of environmental selection) and pairwise harmonic mean area between basins (proxy of drift) on {TD} and {GD} taken separately. {W}e then analyzed the correlation between the residuals of these two regressions with {M}antel tests. {F}inally, we investigated whether the variation in beta-{SGDC} between species was related to species traits. {R}esults: {W}e detected an overall positive beta-{SGDC}, both for the raw and the residual correlations. {T}his implies that, unmeasured effects, other than geographic distance, environmental distance and harmonic mean area, influence the beta-{SGDC} observed. {V}alues of beta-{SGDC}s greatly varied between species, but this was not explained by any species traits. {M}ain conclusions: {I}ndependently of the effects of geographic distance, environmental distance and harmonic mean area, the beta-{SGDC} we observed suggests that historical processes strongly shaped the patterns of {TD} and {GD} between basins. {C}onsequently, {TD} may be an appropriate proxy to explain the influence of historical processes on {GD}.}, keywords = {beta-{SGDC} ; dispersal limitation ; distance decay ; drift ; environmental selection ; freshwater fishes ; historical processes ; macrogenetics ; {M}antel tests ; multiple regression of distance matrices ; {EUROPE} ; {AMERIQUE} {DU} {NORD}}, booktitle = {}, journal = {{J}ournal of {B}iogeography}, volume = {46}, numero = {5}, pages = {1083--1095}, ISSN = {0305-0270}, year = {2019}, DOI = {10.1111/jbi.13559}, URL = {https://www.documentation.ird.fr/hor/fdi:010076091}, }