U. Schliewen

Publications100
h-index29
Citations3,236
Highly Influential Citations247
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Sympatric speciation suggested by monophyly of crater lake cichlids
TLDR
A mitochondrial DNA analysis of cichlid species flocks endemic to two such lakes in Cameroon suggests that the flocks in each lake are monophyletic: the implication being that each lake was colonized once only, the size and shape of each lake being such that subsequent diversification would have been sympatric.
Phylogeography of the bullhead Cottus gobio (Pisces: Teleostei: Cottidae) suggests a pre‐Pleistocene origin of the major central European populations
TLDR
The general pattern that emerges from the analysis suggests that the glaciation cycles did not have a major impact on the general population structure of C. gobio in central Europe.
Genetic and ecological divergence of a monophyletic cichlid species pair under fully sympatric conditions in Lake Ejagham, Cameroon
TLDR
These findings are congruent with recent theoretical models for sympatric speciation, which show that differential ecological adaptations in combination with assortative mating could easily lead to speciation in sympatry.
Molecular phylogenetics of Gobioidei and phylogenetic placement of European gobies.
The root of the East African cichlid radiations
TLDR
The results provide the first resolved hypothesis for the phylogenetic placement of the megadiverse East African cichlid radiations as well as for the world's second most important aquaculture species, the Nile Tilapia, Oreochromis niloticus.
Comparative feeding ecology of invasive Ponto-Caspian gobies
TLDR
Trophic niches in both species expanded during the growth period with increasing intraguild predation and cannibalism in P. kessleri and increasing molluscivory in N. melanostomus.
Reticulate sympatric speciation in Cameroonian crater lake cichlids
TLDR
The findings show that sympatric hybrid speciation is able to contribute significantly to the evolution of complex species assemblages even without the prior formation of hybrids derived from allopatrically differentiated lineages.
Bigger Is Better: Characteristics of Round Gobies Forming an Invasion Front in the Danube River
TLDR
The pronounced changes in fish and invertebrate communities with a dominance of alien species suggest invasional meltdown and a shift of the upper Danube River towards a novel ecosystem with species that have greater resistance to goby predation.
Age and spread of the haplochromine cichlid fishes in Africa.
Adaptive radiation and hybridization in Wallace's Dreamponds: evidence from sailfin silversides in the Malili Lakes of Sulawesi
TLDR
It is shown that introgressive hybridization is a prominent phenomenon in the radiation of sailfin silversides inhabiting the ancient Malili Lakes of Sulawesi, correlating conspicuously with patterns of increased diversity.
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