MARTIN PLATH results 83
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Geographical and temporal variation of multiple paternity in invasive mosquitofish ( Gambusia holbrooki , Gambusia affinis )NARA Subscribed
Multiple paternity (MP) increases offspring's genetic variability, which could be linked to invasive species' evolvability in novel distribution ranges. Shifts in MP can be adaptive, with greater MP in harsher/colder environments or towards the end of the reproductive season, but climate could also affect MP indirectly via its effect on reproductive life histories. We tested these hypotheses by genotyping N = 2,903 offspring f...
Extreme environments and the origins of biodiversity: Adaptation and speciation in sulphide spring fishesNARA Subscribed
Organisms adapted to physiochemical stressors provide ideal systems to study evolutionary mechanisms that drive adaptation and speciation. This review study focuses on livebearing fishes of the Poecilia mexicana species complex (Poeciliidae), members of which have repeatedly colonized hydrogen sulphide (H 2 S)‐rich springs. H 2 S is a potent respiratory toxicant that creates extreme environmental conditions in aquatic ecosyste...
Unique evolutionary trajectories in repeated adaptation to hydrogen sulphide‐toxic habitats of a neotropical fish ( Poecilia mexicana )NARA Subscribed
Replicated ecological gradients are prime systems to study processes of molecular evolution underlying ecological divergence. Here, we investigated the repeated adaptation of the neotropical fish Poecilia mexicana to habitats containing toxic hydrogen sulphide (H 2 S) and compared two population pairs of sulphide‐adapted and ancestral fish by sequencing population pools of >200 individuals (Pool‐Seq). We inferred the evolution...
Understanding local adaptation and population differentiation is vital to the success of re‐introduction initiatives. As other mammals living on islands, A rabian gazelles ( G. arabica ) show reduced body size on the F arasan archipelago, which we corroborated in this study through morphometric analyses of skulls. In the light of the steep population decline on the A rabian P eninsula – but stable population development on the...
Colonisation of toxic environments drives predictable life‐history evolution in livebearing fishes (Poeciliidae)NARA Subscribed
New World livebearing fishes (family Poeciliidae) have repeatedly colonised toxic, hydrogen sulphide‐rich waters across their natural distribution. Physiological considerations and life‐history theory predict that these adverse conditions should favour the evolution of larger offspring. Here, we examined nine poeciliid species that independently colonised toxic environments, and show that these fishes have indeed repeatedly ev...