Copulatory behavior and its relationship to genital morphology

2020 ◽  
pp. 65-122
Author(s):  
Patricia L.R. Brennan ◽  
Dara N. Orbach
Keyword(s):  
Copulatory Behavior ◽  
Genital Morphology

Differences in copulatory behavior as partial isolating mechanisms in the poeciliid fish Gambusia

1975 ◽  
Vol 53 (9) ◽  
pp. 1290-1296 ◽  
Author(s):  
Alex E. Peden
Keyword(s):  
Copulatory Behavior ◽  
Sperm Transfer ◽  
Urogenital Sinus ◽  
Genital Morphology ◽  
Poeciliid Fish ◽  
Isolating Mechanisms

Differences between species were found in the direction of gonopodial thrust of male Gambusia during copulation. Males of species such as G. heterochir, G. marshi, and G. regani direct their gonopodia posteriorly in the same direction as the orientation of their female's urogenital sinus. Males of G. affinis and G. gaigei direct their gonopodia anteriorly, as would be expected from the morphology of their conspecific female's urogenital opening. G. vittata males adopt a precopulatory posture oriented at a much larger angle in relation to the female than is that of other species of Gambusia. This precopulatory angle probably allows male G. vittata to direct their gonopodia posteriorly rather than anteriorly during copulation.Because species of male Gambusia are known to court heterospecific females and produce hybrids in nature, ethological prefertilization mechanisms preventing this wasted effort are obviously inefficient. Since copulatory behavior and genital morphology are apparently adapted for efficient sperm transfer during conspecific copulation, the differences in copulatory behavior found in Gambusia could provide a partial prefertilization mechanism subject to reinforcement.

Genital morphology and copulatory behavior in triatomine bugs (Reduviidae: Triatominae)

2019 ◽  
Vol 49 ◽  
pp. 103-118 ◽  
Author(s):  
A.A. Tellez–Garcia ◽  
R. Bello-Bedoy ◽  
J.N. Enríquez-Vara ◽  
A. Córdoba–Aguilar ◽  
A.E. Gutiérrez–Cabrera
Keyword(s):  
Copulatory Behavior ◽  
Genital Morphology ◽  
Triatomine Bugs

scholarly journals The Possible Role of the Uropygial Gland on Mate Choice in Domestic Chicken

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Atsushi Hirao
Keyword(s):  
Mate Choice ◽  
Visual Cues ◽  
Individual Recognition ◽  
Copulatory Behavior ◽  
Uropygial Gland ◽  
Odor Cues ◽  
Histocompatibility Complex ◽  
Efferent Projections ◽  
Opposite Sex

In avian mating systems, male domestic fowls are polygamous and mate with a number of selected members of the opposite sex. The factors that influence mating preference are considered to be visual cues. However, several studies have indicated that chemosensory cues also affect socio-sexual behavior, including mate choice and individual recognition. The female uropygial gland appears to provide odor for mate choice, as uropygial gland secretions are specific to individual body odor. Chicken olfactory bulbs possess efferent projections to the nucleus taeniae that are involved in copulatory behavior. From various reports, it appears that the uropygial gland has the potential to act as the source of social odor cues that dictate mate choice. In this review, evidence for the possible role of the uropygial gland on mate choice in domestic chickens is presented. However, it remains unclear whether a relationship exists between the uropygial gland and major histocompatibility complex-dependent mate choice.

scholarly journals Effects of imipramine on copulatory behavior of male rats

1973 ◽  
Vol 2 (4) ◽  
pp. 237-239 ◽  
Author(s):  
Deirdre V. Lovecky ◽  
Donald A. Dewsbury
Keyword(s):  
Copulatory Behavior ◽  
Male Rats
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