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.

Allometry and size control: what can studies of body size

Growth, allometry, and characteristics of a sexually selected

Growth, allometry, and characteristics of a sexually selected

Sexual size and shape dimorphism, and allometric scaling in the

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

Are baculum size and allometry a response to post-copulatory

Sexual Selection and Static Allometry: The Importance of Function

Allometric relationship between head size and body size (a

Growth, allometry, and characteristics of a sexually selected

Inter- and intraspecific variation in the Artibeus species complex

Intraspecific and interspecific shape differences of the paramere