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Título

Supplementation of male pheromone on rock substrates attracts female rock lizards to the territories of males: a field experiment

Autor Martín Rueda, José ; López Martínez, Pilar
Fecha de publicación 13-ene-2012
EditorPublic Library of Science
Citación PLoS ONE, 7(1): e30108.
ResumenBackground: Many animals produce elaborated sexual signals to attract mates, among them are common chemical sexual signals (pheromones) with an attracting function. Lizards produce chemical secretions for scent marking that may have a role in sexual selection. In the laboratory, female rock lizards (Iberolacerta cyreni) prefer the scent of males with more ergosterol in their femoral secretions. However, it is not known whether the scent-marks of male rock lizards may actually attract females to male territories in the field. Methodology/Principal Findings: In the field, we added ergosterol to rocks inside the territories of male lizards, and found that this manipulation resulted in increased relative densities of females in these territories. Furthermore, a higher number of females were observed associated to males in manipulated plots, which probably increased mating opportunities for males in these areas. Conclusions/Significance: These and previous laboratory results suggest that female rock lizards may select to settle in home ranges based on the characteristics of scent-marks from conspecific males. Therefore, male rock lizards might attract more females and obtain more matings by increasing the proportion of ergosterol when scent-marking their territories. However, previous studies suggest that the allocation of ergosterol to secretions may be costly and only high quality males could afford it, thus, allowing the evolution of scent-marks as an honest sexual display.
Descripción 7 páginas y 2 figuras
Versión del editorhttp://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0030108
URI http://hdl.handle.net/10261/87709
DOI10.1371/journal.pone.0030108
ISSN1932-6203
E-ISSN1932-6203
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