Morpholino-mediated knockdown of the brain mineralocorticoid receptor affects glucocorticoid signaling and neuroplasticity in wild ocellated wrasse (Symphodus ocellatus)

Uncovering the genetic, physiological, and developmental mechanisms underlying phenotypic variation is necessary for understanding how genetic and genomic variation shape phenotypic variation and for discovering possible targets of selection. Although the neural and endocrine mechanisms underlying social behavior are evolutionarily ancient, we lack an understanding of the proximate causes and evolutionary consequences of variation in these mechanisms. Here, we examine in the natural environment the behavioral, neuromolecular, and fitness consequences of a morpholino-mediated knockdown of the mineralocorticoid receptor (MR) in the brain of nesting males of the ocellated wrasse, Symphodus ocellatus, a species with male alternative reproductive tactics. Even though MR knockdown did not significantly change male behavior directly, this experimental manipulation strongly altered glucocorticoid signaling and neuroplasticity in the preoptic area, the putative hippocampus homolog, and the putative basolateral amygdala homolog. We also found that individual variation in stress axis gene expression and neuroplasticity is strongly associated with variation in male behavior and fitness-related traits. The brain region-specific effects of MR knockdown on phenotypic integration in the wild reported here suggest specific neuroendocrine and neuroplasticity pathways that may be targets of selection.

Gents and Working Girls

Tommy Tune’s earliest work as a director-choreographer engaged with issues of gender, sexuality, culture, and politics. The Club was an evening of songs and jokes set in an exclusive Victorian-era men’s club that featured all roles played by women. Tune led the cast in creating a stylized body language that approximated male behavior but, as performed by women, blurred gender lines in ways both challenging and exhilarating. The cross-gender performance of this material laid bare its misogyny without overstatement, and The Club was a long-running off-Broadway hit. Tune next joined the creative team of The Best Little Whorehouse in Texas, based on a true story about the closing of a bordello prompted by a crusading television personality. As choreographer and co-director, with Peter Masterson, Tune injected a burst of musical comedy brightness into the homey musical. His creativity was boundless, and numbers featuring macho, clog-dancing football players and a female drill team made up of both live dancers and life-size sex dolls were crowd pleasers that also contributed to the show’s sly skewing of culture and politics.

Fairy tale images as a component of cultural programming: gender aspect

The paper considers male and female images in the Yakut fairy tales as a component of cultural programming of gender behavior in a tribal society. The analysis of the Yakut fairy tales reveals that the main male characters whole being integral are represented as a rule by three types – in the image of heroes, hunters and poor men. Female images are more diverse, among them there are girls of the Upper World and udagans (shaman women), endowed with magical powers and the gift of transformation; girls of the Middle World, who can be both passive and active characters; the third group of female images is represented by old women, who are often embodied in the collective image of the old woman Simekhsin. The results of the analysis suggest that the masculine images correspond to the stereotypical male behavior patterns in the patriarchate society, while the feminine images may deviate from the accepted gender stereotypes for various reasons.

138 Randel Lecture: Reproductive Behavior – the basis of reproductive success

In domesticated, promiscuous species like sheep, mate choice is constrained by breeding strategies with limited mate choice. The proportion of rams with limited sexual interest in ewes is nearly 30% of the total number of breeding rams. Rams with low sexual interest detect putative sexual signals from ewes but fail to act in a suitable manner. While a tempered reward mechanism with decreased dopamine synthesis in the mid-brain of low sexually performing rams may partially account for this behavior, how the ewe responds to low-sexually performing rams remained unknown. Ewes are relatively undemonstrative in the expression of sexual behavior. The most widely expressed behavior from the ewe is the increased ambulatory behavior to seek out and affiliation with a ram. The expression of this behavior is estrogen dependent and likely increases the sexual interest of the ram and the reproductive success of the ewe. Rams with low sexual interest do mate and sire lambs. It might be expected that ewe affiliation behavior would increase when the ratio of ewes to rams is high (ie. breeding intensity) or sexual interest is low. This does not appear to be the case since ewes express more proceptive behavior toward rams with greater sexual interest. Ewes spent more time in affiliation with high sexually performing rams (P < 0.001) 57.7% (±3.3) than those expressing low sexual interest (23.8% [± 3.4]). Rams expressing high sexually interest garner more solicitous looks from ewes than do low performing rams. Time in affiliation highly correlated with expression of ram behaviors including number of mounts, total anticipatory, and consummatory behavior. While ewes exhibited increased number of purposeful moves toward high performing rams, movement away from the ram to did not differ by expression of male behavior. In conclusion, ewe behavior does not compensate for low sexual interest from the ram and would not be expected to contribute to the reproductive success of rams expressing low sexual interest.

On the Production, Mating and Behavior of Males in Synoeca surinama (Vespidae: Polistinae: Epiponini)

In colonies of Neotropical swarm-founding wasps (Epiponini), males are thought to be produced only in periods when there are many queens present. Little information is available regarding male behavior in and out of the nest, and male mating strategies are poorly understood. Here, a behavioral study of males of Synoeca surinama is provided and copulation behavior inside a nest is described for the first time. A description of an aggregation of non-natal males at a nest is also provided. The behavior of males was observed in three colonies subjected to removal of queens for another study. Nest envelope was partially removed, and the observations were made directly (seen by “the naked eye”) and indirectly (through camcorder recordings), daily. Production of males occurred in large colonies with number of workers being more relevant than the number of the queens. Males of the aggregation were marked and filmed. The aggregation of non-natal males was observed for seven consecutive days next to the largest colony; some of the males attended the aggregation on consecutive days. The males were observed accessing the comb by the opening in the envelope and courting new queens. One successful copulation on the comb of the nest was observed. In the colony where the male aggregation was observed, 47.6% of the new queens were inseminated while in the other two colonies, no new queens were inseminated. These observations suggest males are attracted to, aggregate and seek mating opportunities at non-natal colonies that are producing young adult queens.

CONSUMER BEHAVIOR IN RELATION TO COSMETICS

Cosmetics are shown highlighted in trade not only in Brazil, but also worldwide. If previously there was little participation of the male audience in this segment, currently the scenario is different. The change in male behavior, the demands of modern society and the labor market for a better appearance, were the main factors that drove male demand for beauty products and services. The general objective is to understand and analyze male consumer behavior with cosmetics. The methodology used was a bibliographic, exploratory, quantitative research, with male consumers. The survey showed that 58% are concerned with appearance, 73% spend up to R $ 100.00, 55% are concerned with quality, 57% buy from specialized stores, vanity is related to well-being 61% and 48% buy products to take care of the whole body.