3.3. Impact of female stridulation on male reproductive readiness
In order to evaluate whether female stridulation enhances male
reproductive readiness, we analysed the numbers of male mating
attempts directed toward singing and silent females during daily
observation periods in which different numbers of females in the
experimental group were stridulating. The data were analysed
with a GEE model, fitted for negative binomial distribution.
The stridulatory behaviour of individual females had a
significant influence on the number of mating attempts performed
by males in the model (GEE: x21
¼ 5:480, P = 0.019). Stridulating
females received X + SE = 4.00 + 1.06 mating attempts more than
silent females (mating attempts toward singers:
X + SE = 6.08 + 1.06; mating attempts toward non singers: