The data portal offers an integrative "one-stop-stop" framework for coherent discovery, visualization,
download and dissemination of scientific information originating from nationally operated research
platforms and monitoring facilities (vessels, observatories, alert systems). The content offered
originates from distinct content providers by German marine research institutions
(see the About page) ranging from cruise-related
metadata to reports, publications, data (archived and near real time) and data products.
The portal is based on open technologies and access is freely available for scientists, funding
agencies and the public (no registration is required).
While we have many intensive efforts to provide well harmonized content, there is still much work to be
done, in particular under "more services". Please help us improving our services and content by filling
out our feedback form.
Colour pattern as a single trait driving speciation in Hypoplectrus coral reef fishes?
Puebla, Oscar; Bermingham, E.; Guichard, F.; Whiteman, E.
Theory shows that speciation in the presence of gene flow occurs only under narrow conditions. One of the most favourable scenarios for speciation with gene flow is established when a single trait is both under disruptive natural selection and used to cue assortative mating. Here, we demonstrate the potential for a single trait, colour pattern, to drive incipient speciation in the genus Hypoplectrus (Serranidae), coral reef fishes known for their striking colour polymorphism. We provide data demonstrating that sympatric Hypoplectrus colour morphs mate assortatively and are genetically distinct. Furthermore, we identify ecological conditions conducive to disruptive selection on colour pattern by presenting behavioural evidence of aggressive mimicry, whereby predatory Hypoplectrus colour morphs mimic the colour patterns of non-predatory reef fish species to increase their success approaching and attacking prey. We propose that colour-based assortative mating, combined with disruptive selection on colour pattern, is driving speciation in Hypoplectrus coral reef fishes.