scholarly journals Social rank and not physiological capacity determines competitive success in zebrafish ( Danio rerio )

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Clare Miln ◽  
Ashley J. W. Ward ◽  
Frank Seebacher
Keyword(s):  
Social Status ◽  
Social Relationships ◽  
Social Rank ◽  
Sprint Performance ◽  
Social Hierarchies ◽  
Sprint Speed ◽  
Physiological Capacity ◽  
Fast Start ◽  
Competitive Success ◽  
Competition For Resources

Competition for resources shapes ecological and evolutionary relationships. Physiological capacities such as in locomotor performance can influence the fitness of individuals by increasing competitive success. Social hierarchy too can affect outcomes of competition by altering locomotor behaviour or because higher ranking individuals monopolize resources. Here, we tested the hypotheses that competitive success is determined by sprint performance or by social status. We show that sprint performance of individuals measured during escape responses (fast start) or in an accelerated sprint test did not correlate with realized sprint speed while competing for food within a social group of five fish; fast start and accelerated sprint speed were higher than realized speed. Social status within the group was the best predictor of competitive success, followed by realized speed. Social hierarchies in zebrafish are established within 7 days of their first encounter, and interestingly, there was a positive correlation between social status and realized speed 1 and 4 days after fish were placed in a group, but not after 7 days. These data indicate that physiological performance decreases in importance as social relationships are established. Also, maximal physiological capacities were not important for competitive success, but swimming speed changed with social context.

scholarly journals Major urinary protein levels are associated with social status and context in mouse social hierarchies

2017 ◽  
Vol 284 (1863) ◽  
pp. 20171570 ◽  
Author(s):  
Won Lee ◽  
Amber Khan ◽  
James P. Curley
Keyword(s):  
Social Status ◽  
Social Rank ◽  
Male Mice ◽  
Urinary Proteins ◽  
Major Urinary Protein ◽  
Social Hierarchies ◽  
Protein Levels ◽  
Major Urinary Proteins ◽  
Stable Linear ◽  
Lower Urinary

We have previously shown that male mice living in groups of 12 males establish and maintain stable linear social hierarchies with each individual having a defined social rank. However, it is not clear which social cues mice use to signal and recognize their relative social status within their hierarchy. In this study, we investigate how individual social status both in pairs and in groups affects the levels of major urinary proteins (MUPs) and specifically MUP20 in urine. We housed groups of adult outbred CD1 male mice in a complex social environment for three weeks and collected urine samples from all individuals repeatedly. We found that dominant males produce more MUPs than subordinates when housed in pairs and that the production of MUPs and MUP20 is significantly higher in alpha males compared with all other individuals in a social hierarchy. Furthermore, we found that hepatic mRNA expression of Mup3 and Mup20 is significantly higher in alpha males than in subordinate males. We also show that alpha males have lower urinary creatinine levels consistent with these males urinating more than others living in hierarchies. These differences emerged within one week of animals being housed together in social hierarchies. This study demonstrates that as males transition to become alpha males, they undergo physiological changes that contribute to communication of their social status that may have implications for the energetic demands of maintaining dominance.

scholarly journals Cues of Social Status: Associations Between Attractiveness, Dominance, and Status

2021 ◽  
Vol 19 (4) ◽  
pp. 147470492110561
Author(s):  
Danny Rahal ◽  
Melissa R. Fales ◽  
Martie G. Haselton ◽  
George M. Slavich ◽  
Theodore F. Robles
Keyword(s):  
Social Status ◽  
Social Relationships ◽  
Undergraduate Students ◽  
Multilevel Models ◽  
Transition To College ◽  
First Year ◽  
Social Hierarchies ◽  
Social Species ◽  
Self Reports ◽  
Physical Cues

Hierarchies naturally emerge in social species, and judgments of status in these hierarchies have consequences for social relationships and health. Although judgments of social status are shaped by appearance, the physical cues that inform judgments of status remain unclear. The transition to college presents an opportunity to examine judgments of social status in a newly developing social hierarchy. We examined whether appearances—as measured by raters’ judgments of photographs and videos—provide information about undergraduate students’ social status at their university and in society in Study 1. Exploratory analyses investigated whether associations differed by participants’ sex. Eighty-one first-year undergraduate students ( Mage   =  18.20, SD  =  0.50; 64.2% female) provided photographs and videos and reported their social status relative to university peers and relative to other people in society. As hypothesized, when participants were judged to be more attractive and dominant they were also judged to have higher status. These associations were replicated in two additional samples of raters who evaluated smiling and neutral photographs from the Chicago Faces Database in Study 2. Multilevel models also revealed that college students with higher self-reported university social status were judged to have higher status, attractiveness, and dominance, although judgments were not related to self-reported society social status. Findings highlight that there is agreement between self-reports of university status and observer-perceptions of status based solely on photographs and videos, and suggest that appearance may shape newly developing social hierarchies, such as those that emerge during the transition to college.

Reduction of spermatogonia and testosterone in rat testes flown on space lab-3

1986 ◽  
Vol 44 ◽  
pp. 248-249
Author(s):  
Delbert E. Philpott ◽  
W. Sapp ◽  
C. Williams ◽  
T. Fast ◽  
J. Stevenson ◽  
...  
Keyword(s):  
Social Interaction ◽  
Social Status ◽  
Population Size ◽  
Physiological Response ◽  
Social Rank ◽  
Reproductive Function ◽  
Testicular Development ◽  
Organ Weights ◽  
Reproductive Maturation ◽  
Metabolic Activities

Space Lab 3 (SL-3) was flown on Shuttle Challenger providing an opportunity to measure the effect of spaceflight on rat testes. Cannon developed the idea that organisms react to unfavorable conditions with highly integrated metabolic activities. Selye summarized the manifestations of physiological response to nonspecific stress and he pointed out that atrophy of the gonads always occurred. Many papers have been published showing the effects of social interaction, crowding, peck order and confinement. Flickinger showed delayed testicular development in subordinate roosters influenced by group numbers, social rank and social status. Christian reported increasing population size in mice resulted in adrenal hypertrophy, inhibition of reproductive maturation and loss of reproductive function in adults. Sex organ weights also declined. Two male dogs were flown on Cosmos 110 for 22 days. Fedorova reported an increase of 30 to 70% atypical spermatozoa consisting of tail curling and/or the absence of a tail.

Subjective social class, perceived quality of social relationships, and happiness: A case of mediation and moderation across gender

2020 ◽  
Vol 35 (3) ◽  
pp. 312-335
Author(s):  
Jae-Woo Kim ◽  
Chaeyoon Lim ◽  
Christina Falci
Keyword(s):  
Social Class ◽  
Social Status ◽  
Relationship Quality ◽  
Social Relationships ◽  
Social Relationship ◽  
Perceived Quality ◽  
Mediating Effect ◽  
Men And Women ◽  
Subjective Social Class

This study investigates the link between social relationship and subjective well-being in the context of social stratification. The authors examine how perceived quality of social relationships and subjective social class are linked to self-reported happiness among men and women in South Korea. The study finds that one’s perception of relative social standing is positively associated with happiness independently of objective indicators of socioeconomic status, while social relationship quality strongly predicts the happiness among both men and women. However, the mediation pathway and moderating effects vary by gender. For men, the nexus between subjective social class and happiness is partially mediated by the quality of interpersonal relationships. No similar mediating effect is found among women. The study also finds gender difference in whether the link between social relationship quality and happiness varies by subjective social class. The happiness return to positive social relationships increases as men’s subjective social status becomes higher, which is consistent with the resource multiplication hypothesis. No similar moderation effect is found among women. Combined, these results reveal potentially different pathways to happiness across gender in Korea, where social status competition, collectivistic culture, and patriarchal gender relations are salient in daily life.

scholarly journals Social status as magnitude: The distance effect and size effect in social hierarchies

2017 ◽  
Author(s):  
Jostein Holmgren
Keyword(s):  
Size Effect ◽  
Social Status ◽  
Social Life ◽  
Distance Effect ◽  
Theoretical Frameworks ◽  
Relational Models ◽  
Social Hierarchies ◽  
Bachelor Of Arts ◽  
Relational Models Theory ◽  
Human Social Life

Thesis type: Bachelor of Arts, PsychologyAuthor: Jostein HolmgrenSupervisor: Thomas Wolfgang SchubertGrade: A (Highest obtainable)Institution: Department of Psychology, University of OsloSocial status is a core feature of human social life. Recently, researchers have begun exploring a possible link between the processing of social status and physical dimensions. Drawing on several theoretical frameworks, including Relational Models Theory, embodied cognition, and the Analog Magnitude System (AMS), the author argues for social status being a dimension processed similarly to physical magnitudes. The present study replicates previous findings of a distance effect typical of magnitudes in the domain of social status, and offers novel evidence for a size effect. Although with limitations, the evidence suggests that social status is processed as any other dimension in the AMS.

scholarly journals Longevity of Willow Tits (Poecile montanus): the significance of flock membership, social rank and body size

2018 ◽  
Vol 41 ◽  
pp. 13-18
Author(s):  
Olav Hogstad ◽  
Tore Slagsvold
Keyword(s):  
Body Size ◽  
Social Rank ◽  
Late Summer ◽  
High Rank ◽  
Subalpine Forest ◽  
Social Hierarchies ◽  
Willow Tit ◽  
Males And Females ◽  
Winter Flocks ◽  
Main Factor

The Willow Tit Poecile montanus is highly sedentary and breeding pairs remain in their exclusive areas throughout the year. During the winter, these areas are defended by small, non-kin flocks, formed as the roaming yearlings become sedentary and join adults during late summer and autumn. Once established, stable social hierarchies are maintained in these flocks during the winter. The winter flocks consist normally of the socially dominant adult mated pair and two mated juvenile pairs, one higher-ranked and one lower-ranked. Individually colour-ringed juvenile Willow Tits were followed over years in subalpine forest in Norway from ringing in the autumn till they disappeared. None of the lower ranked birds survived their first winter, whereas only 4 of 71 higher-ranked juvenile pairs disappeared during this time. Half of the 71 pairs survived their first winter, about 25 % survived two winters, 8.5% survived three winters, and 5.6% survived four winters. Survival was similar for males and females. Alpha pairs remained mated and defended their common territory across years. Maximum age as revealed by ringing showed one female became six years old and two males ringed as adults were at least nine years old when last observed. The main factor associated with survival was early flock establishment that led to a high rank position among the juvenile flock members. Body size seemed insignificant. Birds that survived their first winter either succeeded to establish as territory owners or they were forced into the role as floaters and probably perished.

scholarly journals Increased Conformity to Social Hierarchy Under Public Eyes

2021 ◽  
Vol 12 ◽  
Author(s):  
Daeeun Kim ◽  
JuYoung Kim ◽  
Hackjin Kim
Keyword(s):  
Social Status ◽  
Social Dominance ◽  
Social Rank ◽  
Social Dominance Orientation ◽  
Social Hierarchy ◽  
Negative Evaluation ◽  
Fear Of Negative Evaluation ◽  
The Public ◽  
Individual Preferences ◽  
The Social

Why would people conform more to others with higher social positions? People may place higher confidence in the opinions of those who rank higher in the social hierarchy, or they may wish to make better impressions on people of higher social status. We investigated how individual preferences for novel stimuli are influenced by the preferences of others in the social hierarchy and whether anonymity affects such preference changes. After manipulation of their social rank, participants were asked to indicate how much they liked or disliked a series of images. Then, they were shown the rating given to each image by a partner (either inferior or superior in social rank) and were given a chance to adjust their ratings. The participants were more likely to change their preferences to match those of a superior partner in the public vs. private condition. The tendency to conform to the views of the superior partner was stronger among those with higher social dominance orientation (SDO) and those with greater fear of negative evaluation (FNE) by others. Altogether, the findings suggest that the motivation to make better impressions on people of higher social status can be the major driver of conformity to others with higher social positions.

Fighting for resources: Two leaders in the money addicted social hierarchies

2017 ◽  
Vol 28 (01) ◽  
pp. 1750010
Author(s):  
Bartłomiej Dybiec
Keyword(s):  
Social Networks ◽  
Social Hierarchies ◽  
Number Of Layers ◽  
Competition For Resources

Building of hierarchy is inevitably associated with the constant competition for resources and attention. Here, we show how presence of two favored (leading) nodes affects properties of the network connecting individuals. In particular, we study how nodes characteristics depend on relative asymmetry between two leading nodes. It is shown that without strong and rigorous avoidance mechanism, individuals can support both dominating nodes. Slow redistribution of resources enhances this effect. Moreover, slow redistribution of resources results in development of social networks with a very limited number of layers.

Social ranking in animal and human societies

Ranking ◽  
2019 ◽  
pp. 42-64
Author(s):  
Péter Érdi
Keyword(s):  
Social Rank ◽  
Evolutionary Process ◽  
Social Structures ◽  
Social Ranking ◽  
Pecking Order ◽  
Social Hierarchies ◽  
Physical Size ◽  
The Social ◽  
Network Organizations ◽  
Group Members

This chapter studies how social ranking in humans emerged as the result of an evolutionary process. It starts with the story of the discovery of pecking order among chickens by a Norwegian boy. Both animals and humans need a healthy balance between cooperation and competition to ensure evolutionarily efficient strategies. The biological machinery behind social ranking is discussed. There are two distinct mechanisms for navigating the social ladder: dominance and prestige. Dominance, an evolutionarily older strategy, is based on the ability to intimidate other members in the group by physical size and strength. The group members don’t accept dominance-based social rank freely, only by coercion. Members of a colony fight, and the winners of these fights will be accepted as “dominants” and the losers as “subordinates.” The naturally formed hierarchy serves as a way to prevent superfluous fighting and injuries within a colony. Prestige, as a strategy, is evolutionarily younger and is based on skills and knowledge as appraised by the community. Prestige hierarchies are maintained by the consent of the community, without pressure being applied by particular members. The mechanisms of forming and maintaining social hierarchies are described. Social structures, both hierarchies and network organizations, are reviewed. Discussion of these structures is carried over to social and political history and the tension between democracy and authoritarianism.

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