Handicap principle implies emergence of dimorphic mating displays

Autor: Clifton, Sara M., Braun, Rosemary I., Abrams, Daniel M.
Rok vydání: 2015
Předmět:
Zdroj: Proceedings of the Royal Society B 283, 1970: November 30 2016
Druh dokumentu: Working Paper
DOI: 10.1098/rspb.2016.1970
Popis: Species spanning the animal kingdom have evolved extravagant and costly ornaments to attract mating partners. Zahavi's handicap principle offers an elegant explanation for this: ornaments signal individual quality, and must be costly to ensure honest signalling, making mate selection more efficient. Here we incorporate the assumptions of the handicap principle into a mathematical model and show that they are sufficient to explain the heretofore puzzling observation of bimodally distributed ornament sizes in a variety of species.
Comment: 7 pages, 4 figures, supplementary information included
Databáze: arXiv