Divergent mating preferences and nuptial coloration in sibling species of cichlid fish
Sluijs, I. van der
Citation
Sluijs, I. van der. (2008, June 26). Divergent mating preferences and nuptial coloration in sibling species of cichlid fish.
Department of Animal Ecology, Insitute of Biology Leiden (IBL), Leiden University. Retrieved from
https://hdl.handle.net/1887/12988
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Divergent mating preference and nuptial coloration in sibling species of cichlid fish
Inke van der Sluijs
1. Pundamilia females have the potential to drive speciation by mating with males that are at the extreme ends of the phenotype distribution. This thesis.
2. Once hybridization between Pundamilia species occurs, there is sexual selection against hybrid males by females of one parental species but not by females of the other parental species. This thesis.
3. There is heritable variation in male colour genes between Pundamilia females.
This thesis.
4. Male aggression bias is associated with own nuptial coloration in Pundamilia males. This thesis.
5. Speciation can be fast without linkage between the mate preference trait and the preferred trait.
6. The assumption of speciation by sexual selection models that there is large initial variation in female mate preference is realistic.
7. Mate selection alone can maintain cichlid species of Lake Victoria.
8. Hybrids are a�ractive too.
9. ”The ’species problem’ is not a scientific problem at all, merely one about choosing and consistently applying a convention about how we use a word.
So, we should se�le on our favourite definition, use it, and get on with the science.” Brookfield 2002.
10. Humanity is currently exploiting 1.4 earths.
