A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Colour polymorphism torn apart by opposing positive frequency-dependent selection, yet maintained in space (2015)


Gordon, S., Kokko, H., Rojas Zuluaga, B., Nokelainen, O., & Mappes, J. (2015). Colour polymorphism torn apart by opposing positive frequency-dependent selection, yet maintained in space. Journal of Animal Ecology, 84(6), 1555-1564. https://doi.org/10.1111/1365-2656.12416


JYU-tekijät tai -toimittajat


Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Gordon, Swanne; Kokko, Hanna; Rojas Zuluaga, Bibiana; Nokelainen, Ossi; Mappes, Johanna

Lehti tai sarja: Journal of Animal Ecology

ISSN: 0021-8790

eISSN: 1365-2656

Julkaisuvuosi: 2015

Volyymi: 84

Lehden numero: 6

Artikkelin sivunumerot: 1555–1564

Kustantaja: Wiley-Blackwell Publishing Ltd.; British Ecological Society

Kustannuspaikka: Chichester

Julkaisumaa: Britannia

Julkaisun kieli: englanti

DOI: https://doi.org/10.1111/1365-2656.12416

Linkki tutkimusaineistoon: http://dx.doi.org/10.5061/dryad.nn493

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus: 


Tiivistelmä

Polymorphic warning signals in aposematic species are enigmatic because predator learning and discrimination should select for the most common coloration, resulting in positive frequency‐dependent survival selection.
Here, we investigated whether differential mating success could create sufficiently strong negative frequency‐dependent selection for rare morphs to explain polymorphic (white and yellow) warning coloration in male wood tiger moths (Parasemia plantaginis).
We conducted an experiment in semi‐natural conditions where we estimated mating success for both white and yellow male moths under three different morph frequencies.
Contrary to expectations, mating success was positively frequency‐dependent: white morph males had high relative fitness when common, likewise yellow morph males had high relative fitness when instead they were common. We hence built a model parameterized with our data to examine whether polymorphism can be maintained despite two sources of positive frequency dependence. The model includes known spatial variation in the survival advantage enjoyed by the yellow morph and assumes that relative mating success follows our experimentally derived values. It predicts that polymorphism is possible under migration for up to approximately 20% exchange of individuals between subpopulations in each generation.
Our results suggest that differential mating success combined with spatial variation in predator communities may operate as a selection mosaic that prevents complete fixation of either morph.


YSO-asiasanat: saalistus; seksuaalivalinta

Vapaat asiasanat: aposematism; coloration; mating success; modelling; spatial mosaic


Liittyvät organisaatiot


OKM-raportointi: Kyllä

Raportointivuosi: 2015

JUFO-taso: 2


Viimeisin päivitys 2023-13-12 klo 21:22