Interaction between female mating preferences and predation may explain the maintenance of rare males in the pentamorphic fish Poecilia parae

J. L. Hurtado-Gonzales, D. T. Baldassarre, J. Albert Uy

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Variation in mating preferences coupled with selective predation may allow for the maintenance of alternative mating strategies. Males of the South American live-bearing fish Poecilia parae fall in one of five discrete morphs: red, yellow, blue, stripe-coloured tail (parae) and female mimic (immaculata). Field surveys indicate that the red and yellow morphs are the rarest and that their rarity is consistent across years. We explored the role of variable female mating preference and selective predation by visual predators in explaining the rarity of red and yellow males, and more generally, the maintenance of this extreme colour polymorphism. We presented wild-caught P. parae females and Aequidens tetramerus, the most common cichlid predator, with the five male colour morphs in separate trials to determine mating and prey preferences, respectively. We found that a large proportion of females shared a strong preference for the rare carotenoid-based red and yellow males, but a distinct group also preferred the blue and parae morphs. The cichlid predator strongly preferred red and yellow males as prey. Together, these results suggest that the interaction between premating sexual selection favouring and predation acting against the red and yellow morphs may explain their rarity in the wild. The trade-off between sexual and natural selection, accompanied by variation in female mating preferences, may therefore facilitate the maintenance of the striking colour polymorphism in P. parae.

Original languageEnglish
Pages (from-to)1293-1301
Number of pages9
JournalJournal of Evolutionary Biology
Volume23
Issue number6
DOIs
StatePublished - Jun 1 2010
Externally publishedYes

Fingerprint

Poecilia
morphs
mating behavior
predation
rarity
fish
cichlid
predator
sexual selection
predators
color
polymorphism
genetic polymorphism
prey preference
carotenoid
natural selection
trade-off
field survey
carotenoids
tail

Keywords

  • Colour polymorphism
  • Fish
  • Natural selection
  • Poeciliidae
  • Sexual selection

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

Interaction between female mating preferences and predation may explain the maintenance of rare males in the pentamorphic fish Poecilia parae. / Hurtado-Gonzales, J. L.; Baldassarre, D. T.; Uy, J. Albert.

In: Journal of Evolutionary Biology, Vol. 23, No. 6, 01.06.2010, p. 1293-1301.

Research output: Contribution to journalArticle

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