Social aggression in an age-dependent dominance hierarchy

Behaviour ◽  
2007 ◽  
Vol 144 (7) ◽  
pp. 753-765 ◽  
Author(s):  
Adam Cronin ◽  
Jeremy Field
Keyword(s):  
Social Dominance ◽  
Dominance Hierarchy ◽  
Conflicts Of Interest ◽  
Social Rank ◽  
Social Aggression ◽  
Dominance Hierarchies ◽  
Age Dependent ◽  
The Relationship ◽  
Animal Societies

AbstractSocial aggression arises from conflicts of interest over reproduction in animal societies. Aggression is often highly variable between individuals in a group, may be correlated with dominance, and is often integral to the establishment of dominance hierarchies that in turn determine reproductive opportunities. However, reproductive dominance is not always linked with social dominance: 'queens' are not always the most aggressive individuals in a group. Furthermore, in some animals social rank is determined without aggression, and derived through another means, such as gerontocracy. In such instances, what is the role of aggression, and what underlies the variation between individuals? Here, we investigate the relationship between inheritance rank and aggression in the hover wasp Liostenogaster flavolineata, which has an age-based inheritance queue. All females in this study were of known age and, thus, rank could be determined independently of behaviour. Observations of intra-colony aggression indicated that aggression increased with inheritance rank and occurred among non-breeding subordinates. This cannot be explained by models that do not account for aggression between non-breeders. It is likely that contests over inheritance rank and the higher future fitness anticipated by high-ranking individuals account for this pattern.

scholarly journals Elevated aggression is associated with uncertainty in a network of dog dominance interactions

2019 ◽  
Vol 286 (1906) ◽  
pp. 20190536 ◽  
Author(s):  
Matthew J. Silk ◽  
Michael A. Cant ◽  
Simona Cafazzo ◽  
Eugenia Natoli ◽  
Robbie A. McDonald
Keyword(s):  
Social Relationships ◽  
Social Rank ◽  
Theoretical Models ◽  
Dominance Hierarchies ◽  
Hierarchy Formation ◽  
Dominance Interactions ◽  
Theoretical Predictions ◽  
The Stability ◽  
The Relationship ◽  
Animal Societies

Dominance hierarchies are widespread in animal societies and reduce the costs of within-group conflict over resources and reproduction. Variation in stability across a social hierarchy may result in asymmetries in the benefits obtained from hierarchy formation. However, variation in the stability and behavioural costs of dominance interactions with rank remain poorly understood. Previous theoretical models have predicted that the intensity of dominance interactions and aggression should increase with rank, but these models typically assume high reproductive skew, and so their generality remains untested. Here we show in a pack of free-living dogs with a sex–age-graded hierarchy that the central region of the hierarchy was dominated by more unstable social relationships and associated with elevated aggression. Our results reveal unavoidable costs of ascending a dominance hierarchy, run contrary to theoretical predictions for the relationship between aggression and social rank in high-skew societies, and widen our understanding of how heterogeneous benefits of hierarchy formation arise in animal societies.

Social Dominance and Leadership

2017 ◽  
Author(s):  
Daniel Martin ◽  
Yotam Heineberg
Keyword(s):  
Transformational Leadership ◽  
Social Dominance ◽  
Business Students ◽  
Social Rank ◽  
Social Dominance Orientation ◽  
Belief System ◽  
Well Being ◽  
Leadership Capacity ◽  
Negative Behaviors ◽  
The Relationship

Leadership is usually a mandatory component of business education. Here we used the model of transformational leadership, and operationalized leadership consistently with the Values in Action Leadership scale. Social dominance orientation is a hierarchical belief-system that attributes social rank, ranging from high to low. Business students have been found to have higher levels of Social Dominance Orientation (SDO. Accordingly, 371 working business students were sampled to establish the relationship between SDO and transformational leadership capacity. The mediational impact of compassion was assessed. This study found high levels of competitive and hierarchical world conceptualization was significantly and sometimes strongly negatively linked to these constructs (Martin et al., 2014). We also discuss preliminary results of an interpersonal compassion-based intervention. The research suggests the opportunity to broaden psychological well-being of employees with impactful interventions, since negative behaviors within an institution can raise healthcare costs and lower job performance.

scholarly journals The Relationship between Tuberculosis and Influenza Death during the Influenza (H1N1) Pandemic from 1918-19

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Welling Oei ◽  
Hiroshi Nishiura
Keyword(s):  
Case Fatality ◽  
H1n1 Pandemic ◽  
Period Function ◽  
Specific Risk ◽  
Age Dependent ◽  
The Relationship ◽  
Shaped Pattern ◽  
Epidemiological Information ◽  
Influenza H1n1

The epidemiological mechanisms behind the W-shaped age-specific influenza mortality during the Spanish influenza (H1N1) pandemic 1918-19 have yet to be fully clarified. The present study aimed to develop a formal hypothesis: tuberculosis (TB) was associated with the W-shaped influenza mortality from 1918-19. Three pieces of epidemiological information were assessed: (i) the epidemic records containing the age-specific numbers of cases and deaths of influenza from 1918-19, (ii) an outbreak record of influenza in a Swiss TB sanatorium during the pandemic, and (iii) the age-dependent TB mortality over time in the early 20th century. Analyzing the data (i), we found that the W-shaped pattern was not only seen in mortality but also in the age-specific case fatality ratio, suggesting the presence of underlying age-specific risk factor(s) of influenza death among young adults. From the data (ii), TB was shown to be associated with influenza death (P=0.09), and there was no influenza death among non-TB controls. The data (iii) were analyzed by employing the age-period-cohort model, revealing harvesting effect in the period function of TB mortality shortly after the 1918-19 pandemic. These findings suggest that it is worthwhile to further explore the role of TB in characterizing the age-specific risk of influenza death.

Resource variability and the collapse of a dominance hierarchy in a colour polymorphic species

Behaviour ◽  
2018 ◽  
Vol 155 (6) ◽  
pp. 443-463 ◽  
Author(s):  
Dawson M. Brown ◽  
Matthew S. Lattanzio
Keyword(s):  
Social Dominance ◽  
Dominance Hierarchy ◽  
Environmental Variability ◽  
Behavioural Flexibility ◽  
Dominance Hierarchies ◽  
Species Dominance ◽  
Polymorphic Species ◽  
Series Of Experiments ◽  
Colour Morphs ◽  
Resource Variability

Abstract Intraspecific social dominance hierarchies should be influenced by environmental variation; however, in colour polymorphic species, dominance hierarchies are often assumed fixed, and thus insensitive to environmental variability. We ran a series of experiments using the colour polymorphic long-tailed brush lizard (Urosaurus graciosus) to challenge this assumption. We staged contests between orange and yellow morph males over a single heated perch, two perches at the same temperature, or two perches differing in temperature. Our first experiment revealed that orange-throated males are socially dominant. However, this hierarchy collapsed in our other experiments as yellow males became more aggressive. Interestingly, both males only ever secured their own perch where the perches differed in temperature. These findings mirror observations of morph behavioural flexibility in nature and studies of behaviour–environment interactions in non-polymorphic taxa. We conclude that colour morphs may have an underappreciated ability to assess resource-level changes and respond with concomitant flexibility in behaviour.

scholarly journals The relationship between social dominance orientation and contextual performance

2018 ◽  
Vol 31 (4) ◽  
pp. 795-829
Author(s):  
HyunJun Lee ◽  
TaeYong Yoo
Keyword(s):  
Survey Research ◽  
Social Dominance ◽  
Research Method ◽  
Social Dominance Orientation ◽  
Contextual Performance ◽  
Self Concept ◽  
Future Research ◽  
Working Adult ◽  
The Relationship

The purposes of this study were, first, to confirm the internal structure of social dominance orientation by using Korean working adult sample. Second is to investigate the effect of social dominance orientation on the employee’s contextual performance at the facet level, along with exploring the possible role of narcissistic self-concept(grandiosity) and interpersonal motive(dominance). Using the survey research method, data were collected from 411 employees who were working in a variety of organizations in Korea. The results of study showed that subdimensions of social dominance orientation(SDO-D, SDO-E) were significantly correlated with each other and SDO-E factor was negatively related with interpersonal facilitation. SDO-D factor was not significantly related with neither interpersonal facilitation nor job dedication. However, grandiosity and dominance fully mediated the relationship between SDO-D factor and both subdimensions of contextual performance. Based on these results, we discussed the implications of study, limitations, and the suggestions for future research.

scholarly journals Social rank modulates how environmental quality influences cooperation and conflict within animal societies

2020 ◽  
Vol 287 (1935) ◽  
pp. 20201720
Author(s):  
Mark Liu ◽  
Bo-Fei Chen ◽  
Dustin R. Rubenstein ◽  
Sheng-Feng Shen
Keyword(s):  
Environmental Quality ◽  
Social Rank ◽  
Harsh Environments ◽  
Complex Societies ◽  
Power Structures ◽  
Burying Beetle ◽  
Dominance Hierarchies ◽  
Conflict And Cooperation ◽  
Game Theoretic ◽  
Animal Societies

Although dominance hierarchies occur in most societies, our understanding of how these power structures influence individual investment in cooperative and competitive behaviours remains elusive. Both conflict and cooperation in animal societies are often environmentally regulated, yet how individuals alter their cooperative and competitive investments as environmental quality changes remain unclear. Using game theoretic modelling, we predict that individuals of all ranks will invest more in cooperation and less in social conflict in harsh environments than individuals of the same ranks in benign environments. Counterintuitively, low-ranking subordinates should increase their investment in cooperation proportionally more than high-ranking dominants, suggesting that subordinates contribute relatively more when facing environmental challenges. We then test and confirm these predictions experimentally using the Asian burying beetle Nicrophorus nepalensis . Ultimately, we demonstrate how social rank modulates the relationships between environmental quality and cooperative and competitive behaviours, a topic crucial for understanding the evolution of complex societies.

Capital Markets and Sovereign Defaults

2016 ◽  
pp. 480-512
Author(s):  
Juan H. Flores Zendejas
Keyword(s):  
Capital Markets ◽  
Sovereign Debt ◽  
Conflicts Of Interest ◽  
Main Body ◽  
Liquidity Provision ◽  
History Of ◽  
Sovereign Defaults ◽  
The Relationship ◽  
Supply Side Factors

This chapter provides a historical perspective on the relationship between capital markets and sovereign defaults. While the main body of the sovereign debt literature has rarely incorporated supply side factors, such as market distortions or conflicts of interest, we argue that the history of sovereign defaults cannot be understood without including the evolutionary structure of capital markets. The southern European debt crises and the recent controversy surrounding the role of holdouts demonstrate that certain proposals raised in previous default episodes deserve further discussion, in particular, those aiming to deal with problems of collective action, liquidity provision, and information flaws.

scholarly journals THE ROLE OF MELATONIN DEFICIENCY IN THE GENESIS OF ARTERIAL HYPERTENSION IN PATIENTS WITH CHRONIC KIDNEY DISEASE

2020 ◽  
Vol 115 (1) ◽  
pp. 18-26
Author(s):  
Anna Petrova ◽  
Olena Karpenko
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Hemodialysis Patients ◽  
Laboratory Studies ◽  
Healthy Individuals ◽  
Age Dependent ◽  
Salivary Melatonin ◽  
The Relationship

The study analyzed the prevalence of hypertension and impaired melatonin-forming function of the epiphysis in patients with stage 5 chronic kidney disease treated with hemodialysis. The relationship between epiphysis dysfunction and hypertension has been identified. 130 persons (50% of men) undergoing permanent hemodialysis treatment were examined. Controls were 20 healthy individuals. The determination of daytime and nighttime levels of melatonin in saliva and clinical and laboratory studies. As a result of the study it was found that for patients with stage 5 chronic kidney disease undergoing treatment, there is a frequent violation of melatonin-forming function of the pineal gland (84.6%) and hypertension (78%). In hemodialysis patients, blood pressure increases are age-dependent and are determined with salivary melatonin levels.

scholarly journals Entrepreneurial Passion and Venture Capitalists’ Willingness to Invest: The Role of Relational Capital

2021 ◽  
Vol 12 ◽  
Author(s):  
Hongtao Yang ◽  
Hangyu Shi ◽  
Yenchun Jim Wu ◽  
Lei Zhang ◽  
Shuting Xie
Keyword(s):  
Venture Capital ◽  
Capital Investment ◽  
Conflicts Of Interest ◽  
Positive Impact ◽  
Relational Capital ◽  
Venture Capitalists ◽  
Venture Capital Investment ◽  
Entrepreneurial Passion ◽  
The Relationship

Venture capital investment has serious conflicts of interest and information asymmetry. Venture capitalists often make investment decisions on the basis of the passion of entrepreneurs, including enthusiasm and preparedness, in the process of interacting with them. Most of the previous research on relational capital have focused on the cooperative relationship between suppliers and buyers. However, the role of relational capital in the process of partnership between venture capitalists and entrepreneurs has not been revealed. On the basis of signaling theory, we explore the relationship between entrepreneurial passion and venture capitalists’ willingness to invest. We also examine the mediating and moderating roles of relational capital. This study takes 79 projects between venture capitalists and entrepreneurs as samples for empirical analysis to verify our hypothesis. Results show that entrepreneurs’ enthusiasm and preparedness have a significant positive impact on venture capitalists’ willingness to invest. Relational capital plays a mediating role between entrepreneurial passion and venture capitalists’ willingness to invest. Relational capital positively moderates the relationship between preparedness and venture capitalists’ willingness to invest but has no moderating effect between enthusiasm and venture capitalists’ willingness to invest. Results deepen the understanding of the relationship between entrepreneurs’ passion and venture capitalists’ willingness to invest, which has guiding significance for venture capital practice in China.

The role of defeat and entrapment (arrested flight) in depression: an exploration of an evolutionary view

1998 ◽  
Vol 28 (3) ◽  
pp. 585-598 ◽  
Author(s):  
PAUL GILBERT ◽  
STEVEN ALLAN
Keyword(s):  
Strong Association ◽  
Social Rank ◽  
Self Report ◽  
Social Hierarchies ◽  
Conflict Situations ◽  
The Social ◽  
Evolutionary View ◽  
Explained Variance ◽  
The Relationship

Background. The social rank theory of psychopathology suggests that with the evolution of social hierarchies various psychobiological mechanisms became attuned to the success or failure in conflict situations. Specifically, subordinates and those who have lost status are at greater risk of pathology than winners and those of higher status. In this theory concepts of defeat and entrapment are seen to be of special relevance to the study of depression. We outline the role of defeat and entrapment within the social rank theory of depression.Methods. New self-report measures of entrapment and defeat were developed and used to test predictions of the social rank theory of depression. Both a sample of students and depressed patients were assessed with these new scales and other social rank measures (e.g. social comparison and submissive behaviour).Results. The entrapment and defeat measures were found to have good psychometric properties and significantly correlated with depression. They were also strongly associated with other rank variables. Defeat maintained a strong association with depression even after controlling for hopelessness (r=0·62), whereas the relationship between hopelessness and depression was substantially reduced when controlling for defeat. Entrapment and defeat added substantially to the explained variance of depression after controlling for the other social rank variables.Conclusions. Defeat and entrapment appear to be promising variables for the study of depression. These variables may also help to develop linkages between human and animal models of psychopathology.

Sign in / Sign up

Export Citation Format

Share Document