K
Katja Rönkä
Researcher at University of Helsinki
Publications - 14
Citations - 262
Katja Rönkä is an academic researcher from University of Helsinki. The author has contributed to research in topics: Aposematism & Population. The author has an hindex of 6, co-authored 11 publications receiving 173 citations. Previous affiliations of Katja Rönkä include University of Jyväskylä & University of Amsterdam.
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Journal ArticleDOI
Diversity in warning coloration: selective paradox or the norm?
Emmanuelle Sophie Briolat,Emily Burdfield-Steel,Sarah Catherine Paul,Sarah Catherine Paul,Katja Rönkä,Katja Rönkä,Brett M. Seymoure,Theodore Stankowich,Adam M. M. Stuckert +8 more
TL;DR: A greater appreciation of the extent of variation in aposematic species, and of the selective pressures and constraints which contribute to this once‐paradoxical phenomenon, yields a new perspective for the field of Aposematic signalling.
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Putting Parasemia in its phylogenetic place: a molecular analysis of the subtribe Arctiina (Lepidoptera)
TL;DR: The first phylogenetic hypothesis for the subtribe Arctiina is provided with the basic aim of clarifying the phylogenetic position of the Wood Tiger Moth Parasemia plantaginis Hübner, a model species in evolutionary ecology.
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Colour alone matters: no predator generalization among morphs of an aposematic moth
TL;DR: It is concluded that, in the case of wood tiger moths, predator generalization is unlikely to explain the unexpected coexistence of different morphs, and coloration plays a key role during avoidance learning and generalization, which has important implications for the evolution of mimicry.
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Multimodal Aposematic Signals and Their Emerging Role in Mate Attraction
Bibiana Rojas,Emily Burdfield-Steel,Chiara De Pasqual,Swanne P. Gordon,Linda Hernández,Johanna Mappes,Ossi Nokelainen,Katja Rönkä,Katja Rönkä,Carita Lindstedt +9 more
TL;DR: The lines of evidence showing the role of predation pressure and sexual selection in the evolution of multimodal aposematic signals in general and in the wood tiger moth in particular are reviewed and gaps in current research linking sexual selection and predation as selective pressures on aposematism are established.
Journal ArticleDOI
Geographic mosaic of selection by avian predators on hindwing warning colour in a polymorphic aposematic moth.
Katja Rönkä,Katja Rönkä,Janne K. Valkonen,Ossi Nokelainen,Bibiana Rojas,Swanne P. Gordon,Swanne P. Gordon,Emily Burdfield-Steel,Emily Burdfield-Steel,Johanna Mappes,Johanna Mappes +10 more
TL;DR: It is shown that selection by avian predators on warning colour is predicted by local morph frequency and predator community composition, supporting the idea that spatial variation in predator communities alters the strength or direction of selection on warning signals, thus facilitating a geographic mosaic of selection.