sexual dimorphism

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sexual dimorphism

n
(Biology) biology differences in appearance between the males and females of a species
References in periodicals archive ?
The majority of the book consists of species descriptions including the source of specimens studied, detailed physical morphology, sexual dimorphisms, chemical attractants, similarities and differential diagnosis from other species.
COMPARISON BETWEEN THE PRINCIPAL CHARACTERS RELATING TO SEXUAL DIMORPHISMS IN THE MOST ABUNDANT AEOLO-THRIPS SPECIES IN AMERICA, NAMELY, THE COLOR PATTERNS OF THE BODY, ANTENNAE AND WINGS, AS WELL AS CLASPERS, SETAE AND TUBERCLES IN MALES.
Sexual dimorphism among Thysanoptera Terebrantia, with a new species from Malaysia and remarkable species from India in Aeolothripidae and Thripidae.
In this respect, however, we would argue that biological sex and associated sexual dimorphisms such as WHR provide an invaluable resource for understanding the construction of gender in ancient societies.
Humans display a marked sexual dimorphism in body shape which is unusual amongst primates (Schultz 1969).
As this discussion reveals, there is a strong element of female choice and female power that is directly correlated with the type and extent of sexual dimorphisms in animals.
I do not argue, for example, that because there exist sexual dimorphisms in dress in nonhuman animals, that such differences are "natural" and therefore acceptable or desirable.
Foreleg ornamentation appears to function in different ways even among closely related Schizocosa species, suggesting that it may be difficult to make broad generalizations about the evolution of sexual dimorphisms in wolf spiders.
Structural sexual dimorphisms in the anteroventral periventricular nucleus of the rat hypothalamus are sensitive to gonadal steroids perinatally, but develop peripubertally.
Selection for sexual specialization may well play a role in the generation of sexual dimorphisms seen at all of these levels and thus could provide the selective impetus for the evolution of dioecy from monoecy.
The work includes a list of species scientific names, a summary table of sexual dimorphisms across animal phyla, color plates, and a glossary for general readers.
These findings are interesting in light of the fact that sexual dimorphisms in hepatic hydroxylase enzymes have been linked to estrogen and androgen exposure in mice and rats.