Duration Of Cohabitation Research Articles

Cohabitation of males and juvenile females: a prevalent mating tactic of spiders

Cohabitation, a mating tactic in which males remain with juvenile females until they moult and mature, is shown to be common among spiders. Records are given for 161 species in 74 genera and 15 families. Records were obtained for 100 species of cursorial spiders (45 genera, eight families) and 71 species of web-builders (33 genera, 11 families). Cursorial species cohabit in nests, whereas web-builders cohabit either in the open on their webs or in nests in or near their webs. Duration of cohabitation in nature and in the laboratory was recorded for 12 species. An apparent tendency for web-builders to cohabit longer than cursorial species is discussed. The longest cohabitation occurred in three web-building species (Inola amicabilis, Inola subtilis: Pisauridae; Portia fimbriata: Salticidae) in which males remained with females two moults from maturity, and juvenile, as well as adult, males cohabited with juvenile females. The prevalence of cohabitation in the Salticidae, the family that provided the larges...

Canonical correlation analysis of assortative mating in two groups of Brazilians.

SummaryIn two groups of people, 98 couples in which the husband was a military serviceman and 63 couples of Jewish ancestry living in Porto Alegre, Brazil, age at marriage, age at time of survey, fifteen anthropometric variables, and hair and eye colour were studied. Proper adjustments of the data were made taking into consideration duration of cohabitation, aging and secular effects, and skewness in the distributions. There are some differences between the two groups in age at marriage, but in both there is a tendency for those currently older to have married later in life. The correlation coefficients between spouses are with very few exceptions positive, with no indication of preferences for opposites. Size and factors related to body build are the most readily detectable agents in the assortative mating occurring in this population, but in the military group relative lengths of leg and trunk, rather than stature itself, are important in conditioning mate choice.

Predicting premarital cohabitation: Employing individuals versus couples as the units of analysis

This study employs a sample of 309 recently married couples to discover predictors of cohabitation and cohabital duration before marriage. On the individual level religiosity and sex-role traditionalism were negatively related to the probability of having cohabited for both husbands and wives. However, couple-level analyses revealed that these variables significantly predictnot cohabiting only whenboth partners are religious or traditional. A history of previous divorce is related to a greater propensity to cohabit only when the wife has been married before, but the husband has not. No variables were significantly related to cohabital duration.

Men's erotic fantasies.

Ninety-four men were interviewed about their erotic fantasies. The majority of these men were married and the average duration of cohabitation with a woman was 6.5 years. All admitted to having had erotic fantasies outside their sexual activity and a large majority among them fantasized, at least occasionally, during heterosexual activity and masturbation. The contents during heterosexual activity center on three main themes: confirmation of sexual power, aggressiveness, and masochistic fantasies. Men who have more erotic fantasies during their heterosexual activity have the following characteristics: They have more frequent erotic fantasies outside of sexual activity, they are capable of controlling the timing of ejaculation during coitus, they usually take an active role during their sexual activity, they claim that their regular partner has similar erotic fantasies, they state that their ejaculatory pleasure is more intense when it results from manual or oral caress performed by their partner, they prefer the rear entry coital position, they find seminakedness more erotic than the complete nakedness of a woman, they prefer and have sexual activity during the night, they have had homosexual activities sometime during their life, they tend to leave it to their partner to initiate sexual encounters, and they have experienced psychotherapy.