Fitness correlates of male coloration in a Lake Victoria cichlid fish
نویسندگان
چکیده
منابع مشابه
Developmental effects of environmental light on male nuptial coloration in Lake Victoria cichlid fish
Background Efficient communication requires that signals are well transmitted and perceived in a given environment. Natural selection therefore drives the evolution of different signals in different environments. In addition, environmental heterogeneity at small spatial or temporal scales may favour phenotypic plasticity in signaling traits, as plasticity may allow rapid adjustment of signal ex...
متن کاملMale-male competition and nuptial-colour displacement as a diversifying force in Lake Victoria cichlid fishes.
We propose a new mechanism for diversification of male nuptial-colour patterns in the rapidly speciating cichlid fishes of Lake Victoria. Sympatric closely related species often display nuptial colours at opposite ends of the spectrum with males either blue or yellow to red. Colour polymorphisms within single populations are common too. We propose that competition between males for breeding sit...
متن کاملSpecies-Specific Relationships between Water Transparency and Male Coloration within and between Two Closely Related Lake Victoria Cichlid Species
Environmental variation in signalling conditions affects animal communication traits, with possible consequences for sexual selection and reproductive isolation. Using spectrophotometry, we studied how male coloration within and between populations of two closely related Lake Victoria cichlid species (Pundamilia pundamilia and P. nyererei) covaries with water transparency. Focusing on coloratio...
متن کاملPopulation-structure and genetic diversity in a haplochromine fish cichlid of a satellite lake of Lake Victoria
The ∼ 500 species of the cichlid fish species flock of Lake Victoria, East Africa, have evolved in a record-setting 100 000 years and represent one of the largest adaptive radiations. We examined the population structure of the endangered cichlid species Xystichromis phytophagus from Lake Kanyaboli, a satellite lake to Lake Victoria in the Kenyan Yala wetlands. Two sets of molecular markers wer...
متن کاملConstruction of a BAC library for Haplochromis chilotes, a cichlid fish from Lake Victoria.
Cichlid fishes in Lake Victoria are model organisms for studying rapid radiation and speciation. On the way to examine the molecular basis of how these cichlid fishes achieved such a remarkable morphological diversification, we constructed a bacterial artificial chromosome (BAC) library derived from a cichlid species, Haplochromis chilotes, from Lake Victoria. The library includes 157,056 clone...
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 2006
ISSN: 1465-7279,1045-2249
DOI: 10.1093/beheco/ark020