RT Journal Article T1 Joint analysis of species and genetic variation to quantify the role of dispersal and environmental constraints in community turnover A1 Baselga Fraga, Andrés A1 Gómez Rodríguez, Carola A1 Araújo, Miguel B. A1 Castro Insua, Adrián A1 Arenas, Miguel A1 Posada, David A1 Vogler, Alfried P. K1 Beta diversity K1 Community turnover K1 Dispersal limitation K1 Ecological niche K1 Genetic diversity K1 Phylogenetic scaling AB Spatial turnover of biological communities is determined by both dispersal and environmental constraints. However, we lack quantitative predictions about how these factors interact and influence turnover across genealogical scales. In this study, we have implemented a predictive framework based on approximate Bayesian computation (ABC) to quantify the signature of dispersal and environmental constraints in community turnover. First, we simulated the distribution of haplotypes, intra-specific lineages and species in biological communities under different strengths of dispersal and environmental constraints. Our simulations show that spatial turnover rate is invariant across genealogical scales when dispersal limitation determines the species ranges. However, when environmental constraint limits species ranges, spatial turnover rates vary across genealogical scales. These simulations were used in an ABC framework to quantify the role of dispersal and environmental constraints in 16 empirical biological communities sampled from local to continental scales, including several groups of insects (both aquatic and terrestrial), molluscs and bats. In seven datasets, the observed genealogical invariance of spatial turnover, assessed with distance–decay curves, suggests a dispersal-limited scenario. In the remaining datasets, the variance in distance–decay curves across genealogical scales was best explained by various combinations of dispersal and environmental constraints. Our study illustrates how modelling spatial turnover at multiple genealogical scales (species and intraspecific lineages) provides relevant insights into the relative role of dispersal and environmental constraints in community turnover. PB Wiley PB Oikos Editorial Office YR 2022 FD 2022 LK http://hdl.handle.net/10347/34733 UL http://hdl.handle.net/10347/34733 LA eng NO Baselga, A., Gómez-Rodríguez, C., Araújo, M.B., Castro-Insua, A., Arenas, M., Posada, D. and Vogler, A.P. (2022), Joint analysis of species and genetic variation to quantify the role of dispersal and environmental constraints in community turnover. Ecography, 2022: e05808. https://doi.org/10.1111/ecog.05808 NO This research was supported by the Spanish Ministerio de Cienci e Innovación and the European Regional Development Fund (ERDF) through grants CGL2016-76637-P and PID2020-112935GB-I000. DP and MA receive support from the Xunta de Galicia. MBA and MA acknowledge support from Ministerio de Ciencia, Innovación y Universidades through the grants PGC2018-099363-B-I00 and RYC-2015-18241, respectively. DS Minerva RD 18 abr 2026