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.

Sexual Selection and Static Allometry: The Importance of Function

PDF) Allometric relationship between genitalic size and body size

PDF] Structure and allometry of genitalia in males and females of

Genital morphology and allometry differ by species and sex in

Sexual selection explains Rensch's rule of allometry for sexual

Inter- and intraspecific variation in the Artibeus species complex

Evolutionary allometry of cetacean genital shapes. (A) Evolutionary

PDF] Allometry of the baculum and sexual size dimorphism in

Intraspecific body size variation and allometry of genitalia in

Body size variation in insects: a macroecological perspective

Measurements of four body parts in Lucanus maculifemoratus and