Show simple item record

dc.contributor.authorLe Roux, E.
dc.contributor.authorScholtz, C.
dc.contributor.authorKinahan, A.
dc.contributor.authorBateman, Bill
dc.identifier.citationLe Roux, E. and Scholtz, C. and Kinahan, A. and Bateman, B. 2008. Pre- and Post-Copulatory Mate Selection Mechanisms in an African Dung Beetle, Circellium bacchus (Coleoptera: Scarabaeidae). Journal of Insect Behavior. 21 (3): pp. 111-122.

Females of most taxa mate selectively. Mate selection may be: (1) precopulatory,involving active female choice and male-male competition, and (2) postcopulatory,with cryptic female choice and sperm competition. Because female dungbeetles (Circellium bacchus) invest heavily in parental care by ball-rolling andremaining with developing larva they are, therefore, expected to be highly selectivewhen mating. Mate choice in this species was investigated via behavioralobservations and investigations of genital allometry of both sexes, leading toconclusions about the mechanisms of, and male characteristics important in, femalechoice. Male–male competition seems to be crucial in mate selection of C. bacchus,although the females appeared to show no active mate choice. There is a negativeallometric relationship between genital size and body size of males as predicted bythe ‘one size fits all’ hypothesis (where males have genitalia that fit average-sizedfemales). For the females, no relationship was found between genital size and bodysize. This might be as a result of the non-sclerotized nature of female genitalia,which may allow for greater morphological plasticity.

dc.subject- genital allometry
dc.subjectmale–male competition
dc.subjectSexual selection
dc.subjectmate choice
dc.subject‘one size fits all’ hypothesis
dc.titlePre- and Post-Copulatory Mate Selection Mechanisms in an African Dung Beetle, Circellium bacchus (Coleoptera: Scarabaeidae)
dc.typeJournal Article
dcterms.source.titleJournal of Insect Behavior
curtin.accessStatusFulltext not available

Files in this item


This item appears in the following Collection(s)

Show simple item record