title: The static allometry of sexual and non-sexual traits in vervet monkeys.
abstract: Sexual traits vary tremendously in static allometry. This variation may be explained in part by body size-related differences in the strength of selection. We tested this hypothesis with in two populations of vervet monkeys, using estimates of the level of condition dependence for different morphological traits as a proxy for body size-related variation in the strength of selection. In support of the hypothesis, we found that the steepness of allometric slopes increased with the level of condition dependence. One trait of particular interest, the penis, had shallow allometric slopes and low levels of condition dependence, in agreement with one of the most consistent patterns yet detected in the study of allometry, that of genitalia exhibitting shallow allometries.
authors: Behavioral and Molecular Ecology Group, Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA.
authors: Rafael L
authors: RL
authors: Rodríguez
authors: Department of Sociology, Anthropology, and Women's Studies, American Military University and American Public University, Charles Town, WV 25414, USA.
authors: Jennifer Danzy
authors: JD
authors: Cramer
authors: Center for Neurobehavioral Genetics, University of California-Los Angeles, Los Angeles, CA 90095 USA.
authors: Christopher A
authors: CA
authors: Schmitt
authors: Department of Anthropology, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA.
authors: Tegan J
authors: TJ
authors: Gaetano
authors: Department of Genetics, University of the Free State, Bloemfontein, South Africa.
authors: J Paul
authors: JP
authors: Grobler
authors: Center for Neurobehavioral Genetics, University of California-Los Angeles, Los Angeles, CA 90095 USA.
authors: Nelson B
authors: NB
authors: Freimer
authors: Department of Anthropology, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA ; Department of Genetics, University of the Free State, Bloemfontein, South Africa.
authors: Trudy R
authors: TR
authors: Turner
keywords: Chlorocebus; primate; scaling relationships; sexual selection