scholarly journals Does the response of D. melanogaster males to intrasexual competitors influence sexual isolation?

2020 ◽  
Vol 31 (2) ◽  
pp. 487-492 ◽  
Author(s):  
Lucas Marie-Orleach ◽  
Annui M Sanz ◽  
Nathan W Bailey ◽  
Michael G Ritchie
Keyword(s):  
Social Environment ◽  
Social Isolation ◽  
Courtship Behavior ◽  
Sexual Isolation ◽  
Social Environments ◽  
Male Partners ◽  
The Social ◽  
Opposite Sex ◽  
Evolutionary Consequences ◽  
Paternity Share

Abstract The evolutionary consequences of phenotypic plasticity are debated. For example, reproductive barriers between incipient species can depend on the social environment, but most evidence for this comes from studies focusing on the effects of experiencing heterospecific individuals of the opposite sex. In Drosophila melanogaster, males are well known to invest strategically in ejaculate components and show different courtship behavior when reared in the presence of male competitors. It is unknown whether such plasticity in response to same-sex social experience influences sexual isolation, so we tested this using African and cosmopolitan lines, which show partial sexual isolation. Males were housed in social isolation, with homopopulation, or with heteropopulation male partners. We then measured their mating success, latency, and duration, their paternity share, and female remating success. Isolated males copulated for a shorter duration than males housed with any male partners. However, we found no difference in any measure between homopopulation or heteropopulation treatments. Our findings suggest that the male intrasexual competitive social environment does not strongly influence sexual isolation in D. melanogaster, and that plastic effects on reproductive isolation may be influenced more strongly by the experience of social isolation than by the composition of individuals within different social environments.

Two Social Environments in a Working Day: Occupation and Spatial Segregation in Metropolitan Tel Aviv

10.1068/a3452 ◽  
2001 ◽  
Vol 33 (10) ◽  
pp. 1765-1784 ◽  
Author(s):  
Orna Blumen ◽  
Iris Zamir
Keyword(s):  
Social Environment ◽  
Spatial Segregation ◽  
Social Environments ◽  
Social Significance ◽  
Tel Aviv ◽  
Blue Collar Workers ◽  
The Social ◽  
White Collar Workers ◽  
Working Day ◽  
And Gender

The concepts of segregation and social distance have long been used to explain the social environment of stratified residential space. However, the social significance of occupation, though acknowledged, has rarely been applied spatially. In this study, we employed these three concepts to examine the social environment of the entire metropolitan employment space as defined by job location. Smallest space analysis was used to identify and compare the sociospatial segregation produced by workers' occupational distribution in employment and residential spheres. This empirical study focused on metropolitan Tel Aviv, Israel's largest urban area, using the latest available national census. Our findings show that the social milieu of employment differed from that of residence: blue-collar workers were segregated from white-collar workers; managers, clerks, and salespersons formed the core group; and gender and ethnic divisions characterised the sociospatial realm of employment. Overall, most employees changed their social environment when they went to work. The study indicates that spatial segregation, within each sphere and between the two spheres, is intrinsic to the capitalist – patriarchal order.

scholarly journals Reconsidering Relational Autonomy. Personal Autonomy for Socially Embedded and Temporally Extended Selves

2008 ◽  
Vol 30 (2) ◽  
Author(s):  
Holger Baumann
Keyword(s):  
Social Environment ◽  
Personal Autonomy ◽  
Social Conditions ◽  
Social Dimension ◽  
Personal Relationships ◽  
Causal Role ◽  
Relational Autonomy ◽  
Social Environments ◽  
The Social ◽  
Over Time

AbstractMost recent accounts of personal autonomy acknowledge that the social environment a person lives in, and the personal relationships she entertains, have some impact on her autonomy. Two kinds of conceptualizing social conditions are traditionally distinguished in this regard: Causally relational accounts hold that certain relationships and social environments play a causal role for the development and on-going exercise of autonomy. Constitutively relational accounts, by contrast, claim that autonomy is at least partly constituted by a person’s social environment or standing. The central aim of this paper is to raise the question how causally and constitutively relational approaches relate to the fact that we exercise our autonomy over time. I argue that once the temporal scope of autonomy is opened up, we need not only to think differently about the social dimension of autonomy. We also need to reconsider the very distinction between causally and constitutively relational accounts, because it is itself a synchronic (and not a diachronic) distinction.

scholarly journals Early and adult social environments have independent effects on individual fitness in a social vertebrate

2015 ◽  
Vol 282 (1813) ◽  
pp. 20151167 ◽  
Author(s):  
Vérane Berger ◽  
Jean-François Lemaître ◽  
Dominique Allainé ◽  
Jean-Michel Gaillard ◽  
Aurélie Cohas
Keyword(s):  
Social Environment ◽  
Lifetime Reproductive Success ◽  
Social Environments ◽  
Long Term Effects ◽  
Delayed Effects ◽  
Individual Fitness ◽  
Fitness Consequences ◽  
Dominant Female ◽  
The Social ◽  
Independent Effects

Evidence that the social environment at critical stages of life-history shapes individual trajectories is accumulating. Previous studies have identified either current or delayed effects of social environments on fitness components, but no study has yet analysed fitness consequences of social environments at different life stages simultaneously. To fill the gap, we use an extensive dataset collected during a 24-year intensive monitoring of a population of Alpine marmots ( Marmota marmota ), a long-lived social rodent. We test whether the number of helpers in early life and over the dominance tenure length has an impact on litter size at weaning, juvenile survival, longevity and lifetime reproductive success (LRS) of dominant females. Dominant females, who were born into a group containing many helpers and experiencing a high number of accumulated helpers over dominance tenure length showed an increased LRS through an increased longevity. We provide evidence that in a wild vertebrate, both early and adult social environments influence individual fitness, acting additionally and independently. These findings demonstrate that helpers have both short- and long-term effects on dominant female Alpine marmots and that the social environment at the time of birth can play a key role in shaping individual fitness in social vertebrates.

scholarly journals Sex- and context-dependent effects of acute isolation on vocal and non-vocal social behaviors in mice

PLoS ONE ◽  
2021 ◽  
Vol 16 (9) ◽  
pp. e0255640
Author(s):  
Xin Zhao ◽  
Patryk Ziobro ◽  
Nicole M. Pranic ◽  
Samantha Chu ◽  
Samantha Rabinovich ◽  
...  
Keyword(s):  
Social Behavior ◽  
Social Interactions ◽  
Social Isolation ◽  
Social Behaviors ◽  
Social Motivation ◽  
Same Sex ◽  
Female Mice ◽  
The Social ◽  
Opposite Sex ◽  
Brain And Behavior

Humans are extraordinarily social, and social isolation has profound effects on our behavior, ranging from increased social motivation following short periods of social isolation to increased anti-social behaviors following long-term social isolation. Mice are frequently used as a model to understand how social isolation impacts the brain and behavior. While the effects of chronic social isolation on mouse social behavior have been well studied, much less is known about how acute isolation impacts mouse social behavior and whether these effects vary according to the sex of the mouse and the behavioral context of the social encounter. To address these questions, we characterized the effects of acute (3-day) social isolation on the vocal and non-vocal social behaviors of male and female mice during same-sex and opposite-sex social interactions. Our experiments uncovered pronounced effects of acute isolation on social interactions between female mice, while revealing more subtle effects on the social behaviors of male mice during same-sex and opposite-sex interactions. Our findings advance the study of same-sex interactions between female mice as an attractive paradigm to investigate neural mechanisms through which acute isolation enhances social motivation and promotes social behavior.

scholarly journals The Impact of Social Environment on the Sexual Self-Regulation of University Students in Uganda

2020 ◽  
Vol 1 (2) ◽  
pp. 75-88
Author(s):  
Musa Muwaga ◽  
Fuad Nashori ◽  
Achmad Sholeh
Keyword(s):  
University Students ◽  
Social Environment ◽  
Undergraduate Students ◽  
Self Regulation ◽  
Factor Loading ◽  
Accurate Information ◽  
Social Environments ◽  
Chi Square ◽  
The Social ◽  
The Impact

Most societies consider sexual self-regulation to represent a general temptation control mechanism, postponing gratification. This study aims to determine the social environment's impact on university students' sexual self-regulation in Uganda. The data were obtained using convenience technique sampling of undergraduate students at university "X" in Uganda. Students voluntarily completed the questionnaire in a regular classroom setting. The questionnaire elicited information regarding sexual regulative capacities like seeking accurate information from social environments like family, peer, and university environments. The data were analyzed using both univariate analyses (chi-square and analysis of variance and logistic regression. The results indicated that the social environment had a positive and significant relationship with sexual self-regulation and university students with a value of 1t1 ≥1.96, and factor loading≥0.50 was significant. These results should be considered by those working with university students in human sexuality and human development

scholarly journals Electronic Cigarette and Cigarette Social Environments and Ever Use of Each Product: A Prospective Study of Young Adults in Southern California

2018 ◽  
Vol 21 (10) ◽  
pp. 1347-1354 ◽  
Author(s):  
Robert Urman ◽  
Rob McConnell ◽  
Jennifer B Unger ◽  
Tess B Cruz ◽  
Jonathan M Samet ◽  
...  
Keyword(s):  
Social Environment ◽  
Electronic Cigarette ◽  
Health Study ◽  
Cigarette Use ◽  
Social Environments ◽  
The Social ◽  
Bidirectional Relationship ◽  
Bidirectional Associations ◽  
A Prospective Study

Abstract Background A supportive youth cigarette social environment, for example, friends’ approval of use, leads to cigarette use initiation, and cigarette users develop a more supportive social environment. Whether there is a bidirectional relationship of electronic cigarette (e-cigarette) social environment with e-cigarette use has not been studied. Methods Prospective data were collected from 1441 Children’s Health Study participants in 2014 (median age = 17.3 years) and at follow-up 1.5 years later. Associations were examined of (1) supportive e-cigarette social environment with subsequent e-cigarette use initiation and (2) baseline e-cigarette use with supportive e-cigarette social environment at follow-up (among those with a nonsupportive baseline social environment). Results Participants with three to four friends using e-cigarettes at baseline (vs. no friends) had an odds ratio (OR) of 4.08 of subsequent initiation (95% confidence interval [CI] = 1.96 to 8.49); those with best friends who would have a very friendly (vs. unfriendly) reaction to e-cigarette use had an OR of 2.54 of initiation (95% CI = 1.57 to 4.10); and those with someone in the home using e-cigarettes had an OR of 1.94 of initiation (95% CI = 1.19 to 3.15). Participants who had ever used e-cigarettes at baseline developed a supportive social environment at follow-up (OR of 2.06 of having any friends who used e-cigarettes [95% CI = 1.29 to 3.30] and OR of 2.33 of having friends who were friendly toward use [95% CI = 1.32 to 4.11]). Similar bidirectional associations were observed between ever cigarette use and a supportive cigarette social environment. Conclusions The bidirectional relationship between a supportive e-cigarette social environment and ever use of e-cigarettes was similar to that previously observed between cigarette social environment and cigarette use. Implications Disrupting the social acceptability of youth e-cigarette use merits consideration as a strategy for preventing initiation of e-cigarette use, just as the social denormalization of cigarette use has proven to be effective in preventing cigarette initiation.

The Infectiousness of Crowds: Crowding Experiences Are Amplified by Pathogen Threats

2018 ◽  
Vol 45 (1) ◽  
pp. 120-132 ◽  
Author(s):  
Iris M. Wang ◽  
Joshua M. Ackerman
Keyword(s):  
Infectious Disease ◽  
Negative Affect ◽  
Social Environment ◽  
Social Environments ◽  
The Social ◽  
Physical Danger ◽  
Negative Feelings

People sometimes perceive social environments as unpleasantly crowded. Previous work has linked these experiences to incidental factors such as being hungry or hot and to the relevance of the social environment for an individual’s current goals. Here, we demonstrate that crowding perceptions and evaluations also depend on specific, active threats for perceivers. Eight studies test whether infectious disease threats, which are associated with crowded conditions, increase such reactions. Across studies, pathogen threat made dense social environments seem more crowded and generated more negative affect toward these environments. These perceptions and negative feelings were more influenced by pathogen threat relative to other threats of physical danger. Finally, reactions to pathogen threat affected people’s choice of crowded versus uncrowded environments to inhabit. This research suggests that interpretations of social environments depend on the unique threats and opportunities those environments afford to individuals.

scholarly journals Heightened perception of competition hastens courtship

2019 ◽  
Vol 31 (1) ◽  
pp. 239-246
Author(s):  
Claudia Santori ◽  
Luc F Bussière ◽  
Thomas M Houslay
Keyword(s):  
Social Environment ◽  
Investment Decisions ◽  
Relative Importance ◽  
Mating History ◽  
Environment Exposure ◽  
The Social ◽  
Opposite Sex ◽  
Face Complex ◽  
Multiple Male

Abstract When animals use costly labile display or signal traits to display to the opposite sex, they face complex decisions regarding the degree and timing of their investment in separate instances of trait expression. Such decisions may be informed by not only the focal individual’s condition (or pool of available resources) but also aspects of the social environment, such as perceptions of same-sex competition or the quality of available mates. However, the relative importance of these factors to investment decisions remains unclear. Here, we use manipulations of condition (through dietary nutrition), recent social environment (exposure to a silenced male, nonsilenced male, female, or isolation), and female mating history (single or multiple male) to test how quickly male decorated crickets (Gryllodes sigillatus) decide to begin courting an available female. We find that males that were previously housed with nonsilenced males started courting the female earlier than other males. Females only mounted males after courtship began. Our results suggest a strong effect of the perception of competition on the decision to invest resources in sexual signaling behavior and that females might exert directional selection on its timing.

The creation and consequences of the social world: an interactional analysis of extraversion

2003 ◽  
Vol 17 (5) ◽  
pp. 375-395 ◽  
Author(s):  
Leslie G. Eaton ◽  
David C. Funder
Keyword(s):  
Social Environment ◽  
Social World ◽  
Positive Affectivity ◽  
Path Analyses ◽  
The Social ◽  
Opposite Sex ◽  
Interactional Analysis ◽  
The Creation ◽  
Behavioural Factors ◽  
Research Assistants

Seventy‐six previously unacquainted, opposite‐sex pairs of undergraduate participants engaged in a 5 min videotaped interaction, then provided their mutual impressions. Research assistants coded 64 behaviours from the videotapes; these ratings were combined into behavioural factors. Participants provided self‐descriptions of personality and were described by two acquaintances. Path analyses indicated that targets extraversion was associated with their behavioural involvement, which in turn was associated with partners subsequent ratings of their personality. Targets interpersonal positive affectivity was associated with their partners extraversion. Similar patterns of behavioural associations were found in relation to self‐reported, partner‐reported, and acquaintance‐reported extraversion. These results demonstrate how extraverts may create a positive social environment through their own positivity and by creating a social press for positivity in return. Copyright © 2003 John Wiley & Sons, Ltd.

scholarly journals Social Environment and Individual Differences in Feeding Behavior Are Associated with Risk of Endometritis in Dairy Cows

Animals ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 828 ◽  
Author(s):  
Alexander Thompson ◽  
Kathryn L. Proudfoot ◽  
Becca Franks ◽  
Marina A.G. von Keyserlingk
Keyword(s):  
Risk Factor ◽  
Individual Differences ◽  
Feeding Behavior ◽  
Dairy Cows ◽  
Social Environment ◽  
Free Access ◽  
Social Environments ◽  
Delivery Times ◽  
The Social ◽  
Feeding And Social Behavior

Our aim was to determine whether individual differences in feeding and social behavior in different social environments affect health outcomes in dairy cows. We used eight groups of four animals per treatment assigned to either a ‘predictable’ or an ‘unpredictable’ and competitive social environment. Predictable cows were given free access to six feed bins with no change in feed delivery times; whereas, the unpredictable cows were required to share one feed bin with one resident cow and morning feed was delayed 0, 1, 2, or 3 h every other day. On alternate days, the unpredictable cows were also re-assigned to a new bin and a new resident partner. Low daily dry matter intake (DMI) was a risk factor for cytological endometritis in predictable cows (odds ratio (OR) (95% confidence interval): 0.17 (0.02, 0.53)), but low daily DMI was protective for unpredictable cows (OR: 1.93 (1.09, 4.14)). Although low rate of DMI (kg/min) was a risk factor for cytological endometritis for predictable cows (OR: 4.2 × 10−101 (8.6 × 10−206, 4.8 × 10−30)) it was unrelated to disease for unpredictable cows. There were no associations between feed bin visits or percentage of non-nutritive visits with the likelihood of cytological endometritis. This is the first evidence that individual differences in feeding behavior influence cytological endometritis risk in dairy cows, but the direction and magnitude of these effects is dependent on the social environment.

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