sexual dimorphism


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to sexual dimorphism: sexual selection, Stabilizing selection

sexual dimorphism

n
(Biology) biology differences in appearance between the males and females of a species
References in periodicals archive ?
Sexual dimorphism of the foramen magnum was observed; the anteroposterior and transverse diameters were significantly greater in males than in females (P<0.
The degree of sexual dimorphism in size was assessed by the Storer's index, in which a larger value indicates greater sexual dimorphism (Storer 1966).
Defending his choice of course materials, Sorbello explained that he was attempting to educate the pupils about sexual dimorphism, a term that refers to the differences in physical appearances of males and females of the same species.
Longitudinal studies of male and female athletes and controls would be required to gain a better insight into long bone sexual dimorphism.
Ruckstuhl and Kokko (2002) suggested body size dimorphism is a driving factor leading to the sexual differences in activity budget, and an increasing of the sexual dimorphism triggers greater differences in the activity between males and females.
You can tell that the people who invented this term were men, since the term sexual dimorphism is defined as males being bigger than females.
Sexual dimorphism has been defined by Mayr and Ashlock (1991) as the phenotypic difference between the two sexes of a species.
Understanding relative contributions of males and females during this critical period when both parents feed nestlings could contribute important information to our understanding of the feeding ecology and life history of owls and, in particular, to the long-standing debate (Mueller, 1986; Kruger, 2005) about the evolution of reversed sexual dimorphism (RSD; i.
The study on sexual dimorphism is based on the principle that the axial skeleton weight of the male is relatively and absolutely heavier than that of the female and the initial impact of this weight is borne by the femur in transmission of the body weight.
8 Apart from pelvis, skull exhibits higher sexual dimorphism in human body.
Aggression is also one such trait that shows sexual dimorphism.