caa a22 4500 606193294 CHVBK 20210128100909.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s10682-015-9777-4 doi (NATIONALLICENCE)springer-10.1007/s10682-015-9777-4 Dispersal asymmetries and deleterious mutations influence metapopulation persistence and range dynamics [Elektronische Daten] [Roslyn Henry, Aurélie Coulon, Justin Travis] Asymmetric dispersal within and between populations is more often the norm than the exception. For example, prevailing winds and currents can result in directional dispersal of many passively dispersed species and inter-individual variability in physical condition can generate asymmetric dispersal rates between individuals and populations. Despite this, very little theory incorporates asymmetric dispersal into spatial ecological or genetic models. We therefore present three illustrative scenarios incorporating asymmetric dispersal into spatially and genetically explicit individual based models. In the first, asymmetric dispersal due to environmental forces, such as wind or currents, interacts with the accumulation of mutation load across an environmental gradient, with consequences for range dynamics. In the second, asymmetric dispersal rates arise as individuals disperse according to their physical condition, such that individuals carrying more mutation load disperse less. We demonstrate that this condition-dependent asymmetric dispersal substantially reduces metapopulation persistence. Finally, we turn to the potential implications of condition-dependent dispersal for range expansions. Simulations demonstrate that asymmetric dispersal of individuals according to their load status can substantially slow the rate of range expansion. Taken together, these results highlight that overlooking asymmetric dispersal can result in major biases of our estimates of species persistence and range expansion dynamics. Springer International Publishing Switzerland, 2015 Dispersal asymmetries nationallicence Mutation load nationallicence Environmental gradients nationallicence Gene flow nationallicence Henry Roslyn Institute of Biological Sciences, University of Aberdeen, Zoology Building, Tillydrone Avenue, AB24 2TZ, Aberdeen, UK aut Coulon Aurélie Centre d'Ecologie et des Sciences de la Conservation, UMR 7204 MNHN-CNRS-UPMC, 55 rue Buffon, 75005, Paris, France aut Travis Justin Institute of Biological Sciences, University of Aberdeen, Zoology Building, Tillydrone Avenue, AB24 2TZ, Aberdeen, UK aut Evolutionary Ecology Springer International Publishing 29/6(2015-11-01), 833-850 0269-7653 29:6<833 2015 29 10682 https://doi.org/10.1007/s10682-015-9777-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10682-015-9777-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Henry Roslyn Institute of Biological Sciences, University of Aberdeen, Zoology Building, Tillydrone Avenue, AB24 2TZ, Aberdeen, UK aut NATIONALLICENCE 700 1- Coulon Aurélie Centre d'Ecologie et des Sciences de la Conservation, UMR 7204 MNHN-CNRS-UPMC, 55 rue Buffon, 75005, Paris, France aut NATIONALLICENCE 700 1- Travis Justin Institute of Biological Sciences, University of Aberdeen, Zoology Building, Tillydrone Avenue, AB24 2TZ, Aberdeen, UK aut NATIONALLICENCE 773 0- Evolutionary Ecology Springer International Publishing 29/6(2015-11-01), 833-850 0269-7653 29:6<833 2015 29 10682