T
Topi K. Lehtonen
Researcher at University of Helsinki
Publications - 69
Citations - 1644
Topi K. Lehtonen is an academic researcher from University of Helsinki. The author has contributed to research in topics: Cichlid & Sexual selection. The author has an hindex of 21, co-authored 63 publications receiving 1402 citations. Previous affiliations of Topi K. Lehtonen include Monash University, Clayton campus & University of Konstanz.
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Local variation and parallel evolution: morphological and genetic diversity across a species complex of neotropical crater lake cichlid fishes.
TL;DR: It is suggested that crater lake Midas cichlids follow the predicted pattern of an adaptive radiation, with early divergence of each crater lake colonization, followed by intralacustrine diversification and speciation by ecological adaptation and sexual selection.
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Color assortative mating contributes to sympatric divergence of neotropical cichlid fish.
TL;DR: This study used field data and molecular methods to investigate the gold-normal color polymorphism in two endemic cichlid fish species of crater lake Xiloá, Nicaragua, and found significant assortative mating by color in both Amphilophus xiloaensis and A. sagittae.
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Rapid sympatric ecological differentiation of crater lake cichlid fishes within historic times
TL;DR: This study provides empirical evidence of eco-morphological differentiation occurring very quickly after the colonization of a new and vacant habitat, and suggests that this population of Midas cichlid fishes may be in a very early stage of speciation (incipient species), promoted by disruptive selection and ecological diversification.
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Repeatability of mating preferences in the sand goby
Topi K. Lehtonen,Kai Lindström +1 more
TL;DR: The suitability of association tests for assessing female mate preferences in the sand goby, Pomatoschistus minutus, was tested and it was found that sexually motivated association preferences that were repeatable and corresponded to actual mating decisions showed genetically based, individual differences in mate preferences.
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Erratum to: Rapid sympatric ecological differentiation of crater lake cichlid fishes within historic times
TL;DR: This study provides empirical evidence of eco-morphological differentiation occurring very quickly after the colonization of a new and vacant habitat, and suggests that this population of Midas cichlid fishes may be in a very early stage of speciation (incipient species), promoted by disruptive selection and ecological diversification.