Royal Society Publishing  Foraging costs drive female resistance
to a sensory trap  Constantino Macías Garcia, Yolitzi Saldívar
Lemus    1. Introduction  It is increasingly clear that male
ornaments can be attractive because they exploit perceptual
biases of the females [1]. If the biases exploited are adaptive
in other contexts, such as food detection or recognition [26],
they are termed ‘sensory traps’ [7]. Males benefit from the
display of ornaments that constitute sensory traps because they
increase both the rate at which they are approached by females
and the time females spend in their vicinity, regardless of what
motivation (e.g. feeding) is driving the females [8]. Females
thus drawn into the males' vicinity are consequently exposed to
courtship and mating attempts more often and for longer periods
than would be optimal for them. As elevated mating rates are
often costly to females [9], and so is being exposed to
persistent courtship [1012], natural selection should favour the
evolution of female resi