Intraspecific body size variation and allometry of genitalia in

The current consensus is that sexual selection is responsible for the rapid and diverse evolution of genitalia, with several mutually exclusive mechanisms under debate, including non-antagonistic, antagonistic and stabilizing mechanisms. We used the orb-web spider, Argiope lobata (Araneidae), as a study model to quantify the allometric relationship between body size and genitalia, and to test for any impact of genital structures on male mating success or outcome in terms of copulation duration, leg loss or cannibalism. Our data do not support the ‘one-size-fits-all’ hypothesis that predicts a negative allometric slope between genitalia and body size. Importantly, we measured both male and female genitalia, and there was no sex specific pattern in allometric slopes. Unexpectedly, we found no predictor for reproductive success as indicated by copulation duration, cannibalism, and leg loss.

PDF) Allometric relationship between genitalic size and body size

Growth, allometry, and characteristics of a sexually selected

Intraspecific body size variation and allometry of genitalia in

PDF) The allometry of ornaments and weapons

Sources of intraspecific variation in the isotopic niche of a semi

Centroid sizes of genitalia for four geographical sample areas

Model of a selection regime that alters the slope of the genital

Allometry for Sexual Size Dimorphism: Testing Two Hypotheses for

Growth, allometry, and characteristics of a sexually selected

Fitness consequences of artificial selection on relative male