scholarly journals Coopetition in Group Contest

2019 ◽  
Author(s):  
Hubert Janos Kiss ◽  
Alfonso Rosa-Garcia ◽  
Vita Zhukova
Keyword(s):  
Group Contest

A Group Contest

1903 ◽  
Vol 8 (2) ◽  
pp. 82-91
Author(s):  
C. Ward Crampton
Keyword(s):  
Group Contest

scholarly journals The Max-Min Group Contest: Weakest-link (Group) All-Pay Auction

2016 ◽  
Vol 83 (1) ◽  
pp. 105-125 ◽  
Author(s):  
Subhasish M. Chowdhury ◽  
Dongryul Lee ◽  
Iryna Topolyan
Keyword(s):  
Link Group ◽  
Weakest Link ◽  
Group Contest ◽  
All Pay Auction

scholarly journals How socio-ecological factors influence the differentiation of social relationships: an integrated conceptual framework

2020 ◽  
Vol 16 (9) ◽  
pp. 20200384
Author(s):  
Liza R. Moscovice ◽  
Cédric Sueur ◽  
Filippo Aureli
Keyword(s):  
Conceptual Framework ◽  
Social Interactions ◽  
Social Relationships ◽  
Social Complexity ◽  
Ecological Factors ◽  
Contest Competition ◽  
Group Level ◽  
Interspecific Differences ◽  
Wide Range ◽  
Group Contest

The extent of differentiation of social relationships within groups is a means to assess social complexity, with greater differentiation indicating greater social complexity. Socio-ecological factors are likely to influence social complexity, but no attempt has been made to explain the differentiation of social relationships using multiple socio-ecological factors. Here, we propose a conceptual framework based on four components underlying multiple socio-ecological factors that influence the differentiation of social relationships: the extent of within-group contest competition to access resources, the extent to which individuals differ in their ability to provide a variety of services, the need for group-level cooperation and the constraints on social interactions. We use the framework to make predictions about the degree of relationship differentiation that can be expected within a group according to the cumulative contribution of multiple socio-ecological factors to each of the four components. The framework has broad applicability, since the four components are likely to be relevant to a wide range of animal taxa and to additional socio-ecological factors not explicitly dealt with here. Hence, the framework can be used as the basis for the development of novel and testable hypotheses about intra- and interspecific differences in relationship differentiation and social complexity.

scholarly journals Delegation in a group-contest

2004 ◽  
Vol 20 (1) ◽  
pp. 263-272 ◽  
Author(s):  
Lambert Schoonbeek
Keyword(s):  
Group Contest

Gender Identity and Group Contest

2021 ◽  
Author(s):  
Usame Berk Aktas ◽  
Florian Heine
Keyword(s):  
Gender Identity ◽  
Group Contest

Scramble and Contest in Feeding Competition Among Female Long-Tailed Macaques (Macaca Fascicularis)

Behaviour ◽  
1988 ◽  
Vol 105 (1-2) ◽  
pp. 77-98 ◽  
Author(s):  
Maria A. Van Noordwijk ◽  
Carel P. Van Schaik
Keyword(s):  
Energy Expenditure ◽  
Macaca Fascicularis ◽  
Birth Rate ◽  
Dominance Effect ◽  
Interspecific Variation ◽  
Feeding Competition ◽  
Food Distribution ◽  
Group Level ◽  
Group Size Effect ◽  
Group Contest

AbstractMost previous studies of feeding competition in gregarious primates compared some average or group-level characteristic over a range of group sizes. Here an attempt is made to separate the effects of within-group scramble (the "group size" effect) and of within-group contest (the "dominance" effect) on energy expenditure and food intake in female long-tailed macaques (Macaca fascicularis). Significant or consistent scramble and contest components were demonstrated for locomotion and energy expenditure, for the presence in the main party of the group, and for birth rate. The intake of fruit or animal matter was not increased in compensation, but the intake of dispersed vegetable matter probably was. It is concluded that both components of feeding competition exist in long-tailed macaques, but that contest for food is often transferred into contest for safety. A framework is proposed to relate interspecific variation in contest effects to food distribution and group cohesion.

The evolution of social bonds in primate males

Behaviour ◽  
2014 ◽  
Vol 151 (7) ◽  
pp. 871-906 ◽  
Author(s):  
Julia Ostner ◽  
Oliver Schülke
Keyword(s):  
Social Organization ◽  
Social Relationships ◽  
Mating Systems ◽  
Social Bonds ◽  
Large Male ◽  
Contest Competition ◽  
Adaptive Function ◽  
History Of ◽  
Group Contest

Social bonds, here defined as strong, equitable and enduring social relationships, increase fitness in both male and female primates irrespective of their dispersal regime. Despite the benefits they carry for some, social bonds evolved more often among female than among male primates which is thought to be caused by the unsharable nature of males’ limiting resource, fertilizations. Here we present a structured review of variation in primate male social relationships, mating systems, and social organization. In addition to classical socio-ecological reasoning and recent models on the evolution of male coalitions, we consider the phylogenetic history of species living in multi-male groups and alternative evolutionary routes to male co-residency, which may constrain the evolution of male social bonds in some cases. We summarize our results in a conceptual framework that represents the effects of male contest competition within and between groups on male social organization, affiliation and cooperation. We conclude that male social bonds evolved as long-term alliances that gain their adaptive function in within group contests and, thus, that the evolution of male social bonds is driven by variation in within group contest competition. Between group contest competition may select for large male group size but in the end it is the narrow window of medium to low within group contest competition that promotes the evolution of political coalitions and thus is responsible for the rarity of social bonds among primate males.

scholarly journals Group contest success functions

2009 ◽  
Vol 41 (2) ◽  
pp. 345-357 ◽  
Author(s):  
Johannes Münster
Keyword(s):  
Contest Success Functions ◽  
Group Contest

Effects of age, reproductive state, and the number of competitors on the dominance dynamics of wild female Hanuman langurs

Behaviour ◽  
2013 ◽  
Vol 150 (5) ◽  
pp. 485-523 ◽  
Author(s):  
Amy Lu ◽  
Carola Borries ◽  
Anna Caselli ◽  
Andreas Koenig
Keyword(s):  
Dominance Rank ◽  
Social Processes ◽  
Female Dominance ◽  
Contest Competition ◽  
Reproductive State ◽  
Resource Holding Potential ◽  
Wild Female ◽  
Dominance Hierarchies ◽  
Adult Females ◽  
Group Contest

Female dominance hierarchies form as a result of individual differences in resource holding potential, social processes such as winner-loser effects or coalitions, and ecological conditions that favor contest competition. Contest competition is assumed to result in despotic, nepotistic, and stable hierarchies. However, female Hanuman langurs are exceptions to this pattern, with data from provisioned populations indicating despotic, yet individualistic (age-inversed) and unstable hierarchies despite strong within-group contest. We present data on hierarchical linearity, stability, and the determinants of female rank and rank change in a population of unprovisioned, wild Hanuman langurs (Ramnagar, Nepal). Based on 12 490 dyadic displacement interactions collected over 5 years from a medium-sized group (P group, mean = 6.9 adult females) and a large group (O group, mean = 13.6 adult females), stable periods (P group, ; O group, ) were identified and dominance hierarchies constructed with the program MatMan. In both groups, dominance hierarchies were linear (), with high directional consistency within dyads. Rank was negatively related with age, while the presence of maternal kin had no effect. Reproductive state affected dominance rank in the larger group, with females ascending the hierarchy prior to conception, and dropping in rank after birth. Ranks were unstable, with group size and the number of juvenile females driving the effect (GLMM, ). These results match earlier findings for provisioned populations. In female Hanuman langurs, competition seems most intense around conception and during gestation, creating rank instability, which is further exacerbated by the number of adult as well as maturing females.

Sign in / Sign up

Export Citation Format

Share Document