scholarly journals Social interactions drive efficient foraging and income equality in groups of fish

eLife ◽  
2020 ◽  
Vol 9 ◽  
Author(s):  
Roy Harpaz ◽  
Elad Schneidman
Keyword(s):  
Social Interactions ◽  
Group Behavior ◽  
Food Distribution ◽  
Foraging Efficiency ◽  
Mechanistic Models ◽  
Adult Zebrafish ◽  
Group Foraging ◽  
Income Equality ◽  
Food Items ◽  
The Social

The social interactions underlying group foraging and their benefits have been mostly studied using mechanistic models replicating qualitative features of group behavior, and focused on a single resource or a few clustered ones. Here, we tracked groups of freely foraging adult zebrafish with spatially dispersed food items and found that fish perform stereotypical maneuvers when consuming food, which attract neighboring fish. We then present a mathematical model, based on inferred functional interactions between fish, which accurately describes individual and group foraging of real fish. We show that these interactions allow fish to combine individual and social information to achieve near-optimal foraging efficiency and promote income equality within groups. We further show that the interactions that would maximize efficiency in these social foraging models depend on group size, but not on food distribution, and hypothesize that fish may adaptively pick the subgroup of neighbors they ‘listen to’ to determine their own behavior.

scholarly journals Social interactions drive efficient foraging and income equality in groups of fish

2019 ◽  
Author(s):  
Roy Harpaz ◽  
Elad Schneidman
Keyword(s):  
Social Interactions ◽  
Interaction Mechanism ◽  
Group Behavior ◽  
Food Distribution ◽  
Foraging Efficiency ◽  
Mechanistic Models ◽  
Adult Zebrafish ◽  
Group Foraging ◽  
Income Equality ◽  
The Social

AbstractThe social interactions underlying group foraging and their benefits have been mostly studied using mechanistic models replicating qualitative features of group behavior, and focused on a single resource or a few clustered ones. Here, we tracked groups of freely foraging adult zebrafish with spatially dispersed food items and found that fish perform stereotypical maneuvers when consuming food, which attract neighboring fish. We then present a mathematical model, based on inferred functional interactions between fish, which accurately describes individual and group foraging of real fish. We show that these interactions allow fish to combine individual and social information to achieve near-optimal foraging efficiency and promote income equality within groups. We further show that the interactions that would maximize efficiency in these social foraging models depend on group size, but not on food distribution - suggesting that fish may adaptively pick the subgroup of neighbors they “listen to” to determine their own behavior.Impact statementAnalysis and modeling of group behavior of adult zebrafish shows that a specialized social interaction mechanism increases foraging efficiency and equality within groups, under a variety of environmental conditions.

scholarly journals Discrete modes of social information processing predict individual behavior of fish in a group

2017 ◽  
Vol 114 (38) ◽  
pp. 10149-10154 ◽  
Author(s):  
Roy Harpaz ◽  
Gašper Tkačik ◽  
Elad Schneidman
Keyword(s):  
Social Interactions ◽  
Social Information Processing ◽  
Collective Behavior ◽  
Single Mode ◽  
Group Behavior ◽  
Neural Correlates ◽  
Individual Behavior ◽  
Group Level ◽  
Adult Zebrafish ◽  
Passive Mode

Individual computations and social interactions underlying collective behavior in groups of animals are of great ethological, behavioral, and theoretical interest. While complex individual behaviors have successfully been parsed into small dictionaries of stereotyped behavioral modes, studies of collective behavior largely ignored these findings; instead, their focus was on inferring single, mode-independent social interaction rules that reproduced macroscopic and often qualitative features of group behavior. Here, we bring these two approaches together to predict individual swimming patterns of adult zebrafish in a group. We show that fish alternate between an “active” mode, in which they are sensitive to the swimming patterns of conspecifics, and a “passive” mode, where they ignore them. Using a model that accounts for these two modes explicitly, we predict behaviors of individual fish with high accuracy, outperforming previous approaches that assumed a single continuous computation by individuals and simple metric or topological weighing of neighbors’ behavior. At the group level, switching between active and passive modes is uncorrelated among fish, but correlated directional swimming behavior still emerges. Our quantitative approach for studying complex, multimodal individual behavior jointly with emergent group behavior is readily extensible to additional behavioral modes and their neural correlates as well as to other species.

scholarly journals Ecological and social correlates of chimpanzee tool use

2013 ◽  
Vol 368 (1630) ◽  
pp. 20120416 ◽  
Author(s):  
Crickette M. Sanz ◽  
David B. Morgan
Keyword(s):  
Social Interactions ◽  
Tool Use ◽  
Central Africa ◽  
Seasonal Patterns ◽  
Food Items ◽  
The Social ◽  
Scarcity Of Resources ◽  
Tool Technology ◽  
Relative Profitability ◽  
Gain Access

The emergence of technology has been suggested to coincide with scarcity of staple resources that led to innovations in the form of tool-assisted strategies to diversify or augment typical diets. We examined seasonal patterns of several types of tool use exhibited by a chimpanzee ( Pan troglodytes ) population residing in central Africa, to determine whether their technical skills provided access to fallback resources when preferred food items were scarce. Chimpanzees in the Goualougo Triangle exhibit a diverse repertoire of tool behaviours, many of which are exhibited throughout the year. Further, they have developed specific tool sets to overcome the issues of accessibility to particular food items. Our conclusion is that these chimpanzees use a sophisticated tool technology to cope with seasonal changes in relative food abundance and gain access to high-quality foods. Subgroup sizes were smaller in tool using contexts than other foraging contexts, suggesting that the size of the social group may not be as important in promoting complex tool traditions as the frequency and type of social interactions. Further, reports from other populations and species showed that tool use may occur more often in response to ecological opportunities and relative profitability of foraging techniques than scarcity of resources.

Value-driven issues throughout the development of sociological theory

2020 ◽  
pp. 147-160
Author(s):  
Gulbarshyn Chepurko ◽  
Valerii Pylypenko
Keyword(s):  
Social Interactions ◽  
Social System ◽  
Sociological Theory ◽  
Social Scientists ◽  
Social Sphere ◽  
Technological Advances ◽  
The Social ◽  
The Individual ◽  
Different Levels

The paper examines and compares how the major sociological theories treat axiological issues. Value-driven topics are analysed in view of their relevance to society in times of crisis, when both societal life and the very structure of society undergo dramatic change. Nowadays, social scientists around the world are also witnessing such a change due to the emergence of alternative schools of sociological thought (non-classical, interpretive, postmodern, etc.) and, subsequently, the necessity to revise the paradigms that have been existed in sociology so far. Since the above-mentioned approaches are often used to address value-related issues, building a solid theoretical framework for these studies takes on considerable significance. Furthermore, the paradigm revision has been prompted by technological advances changing all areas of people’s lives, especially social interactions. The global human community, integral in nature, is being formed, and production of human values now matters more than production of things; hence the “expansion” of value-focused perspectives in contemporary sociology. The authors give special attention to collectivities which are higher-order units of the social system. These units are described as well-organised action systems where each individual performs his/her specific role. Just as the role of an individual is distinct from that of the collectivity (because the individual and the collectivity are different as units), so too a distinction is drawn between the value and the norm — because they represent different levels of social relationships. Values are the main connecting element between the society’s cultural system and the social sphere while norms, for the most part, belong to the social system. Values serve primarily to maintain the pattern according to which the society is functioning at a given time; norms are essential to social integration. Apart from being the means of regulating social processes and relationships, norms embody the “principles” that can be applied beyond a particular social system. The authors underline that it is important for Ukrainian sociology to keep abreast of the latest developments in the field of axiology and make good use of those ideas because this is a prerequisite for its successful integration into the global sociological community.

Social ethology of the wolverine

2018 ◽  
Author(s):  
Jeffrey P. Copeland ◽  
Arild Landa ◽  
Kimberly Heinemeyer ◽  
Keith B. Aubry ◽  
Jiska van Dijk ◽  
...  
Keyword(s):  
Social Organization ◽  
Social Interactions ◽  
Resource Availability ◽  
Social Behaviour ◽  
Social System ◽  
Group Living ◽  
Field Studies ◽  
Ecological Framework ◽  
The Social ◽  
Living Species

Social behaviour in solitary carnivores has long been an active area of investigation but for many species remains largely founded in conjecture compared to our understanding of sociality in group-living species. The social organization of the wolverine has, until now, received little attention beyond its portrayal as a typical mustelid social system. In this chapter the authors compile observations of social interactions from multiple wolverine field studies, which are integrated into an ecological framework. An ethological model for the wolverine is proposed that reveals an intricate social organization, which is driven by variable resource availability within extremely large territories and supports social behaviour that underpins offspring development.

A Phenomenology of Rhythm

2018 ◽  
Author(s):  
Lexi Eikelboom
Keyword(s):  
Social Sciences ◽  
Social Interactions ◽  
Henri Lefebvre ◽  
Theoretical Perspectives ◽  
The Social ◽  
Analytical Importance ◽  
Jazz Performance

This chapter proposes a framework for approaching the theological significance of rhythm through phenomenology, prosody, and the social sciences. In accordance with the general categories of phenomenology established by Merleau-Ponty and the “rhythmanalysis” of Henri Lefebvre, the chapter investigates two experiences of rhythm: approaches to analysing the human encounter with rhythm in the reading of poetry and the role of rhythm in social interactions introduced through commonalities between rhythm in conversation and in jazz performance. These explorations establish two features of rhythm that are of analytical importance for the chapters that follow: (1) the synchronic and the diachronic as two necessary but distinct theoretical perspectives on rhythm, each of which emphasizes different features of rhythm and (2) the importance of interruption for understanding rhythm’s significance.

Baroque Dance

2018 ◽  
pp. 263-285
Author(s):  
Jennifer Nevile
Keyword(s):  
Social Interactions ◽  
Design Principles ◽  
Self Control ◽  
Scientific Thought ◽  
The Social ◽  
French Court ◽  
Concept Of Beauty

Baroque dance was inseparable from music and theater, with its role in multimedia spectacles giving it a dramatic power and an expressive passion. It was part of politics and diplomacy; it was influenced by contemporary artistic attitudes as they pertained to the concept of beauty and artistic design principles, as well as trends in philosophic and scientific thought; and it reflected the organization of society and the social interactions of the upper levels of society. Dance taught self-control, which was itself a sign of noble virtue and a graceful bearing. While each country had its own national dance traditions, the fundamental characteristics of baroque dance was French; the practice as performed at the French court and the Opéra. The years 1630–1750 saw changes in styles and dance genres, major innovations in the methods of notating choreographies, as well as visible and substantial changes in the bodily deportment of dancers.

scholarly journals The switching mechanisms of social network densification

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Teruyoshi Kobayashi ◽  
Mathieu Génois
Keyword(s):  
Social Networks ◽  
Social Network ◽  
Social Context ◽  
Social Interactions ◽  
Regime Switching ◽  
Face To Face ◽  
The Social ◽  
Switching Property ◽  
Distinctive Type ◽  
Insight Into

AbstractDensification and sparsification of social networks are attributed to two fundamental mechanisms: a change in the population in the system, and/or a change in the chances that people in the system are connected. In theory, each of these mechanisms generates a distinctive type of densification scaling, but in reality both types are generally mixed. Here, we develop a Bayesian statistical method to identify the extent to which each of these mechanisms is at play at a given point in time, taking the mixed densification scaling as input. We apply the method to networks of face-to-face interactions of individuals and reveal that the main mechanism that causes densification and sparsification occasionally switches, the frequency of which depending on the social context. The proposed method uncovers an inherent regime-switching property of network dynamics, which will provide a new insight into the mechanics behind evolving social interactions.

scholarly journals Three Strategies for Describing Social Interactions of Adolescents in a Multicultural Environment—Indicators for the Quality of Life Research

2021 ◽  
Vol 18 (15) ◽  
pp. 8166
Author(s):  
Alicja Szerląg ◽  
Arkadiusz Urbanek ◽  
Kamila Gandecka
Keyword(s):  
Quality Of Life ◽  
Social Interactions ◽  
Social Relationships ◽  
Social Relations ◽  
Living Environment ◽  
Life Assessment ◽  
Multicultural Environment ◽  
Multicultural Community ◽  
The Social

Background: The analysis has involved social interactions in a multicultural environment. The social context has been defined by the Vilnius region (Lithuania), where national, religious, and cultural differences exist across generations (multicultural community). The space of “social relationships”, as one of the modules of the WHO quality of life assessment, has been studied. An innovation of the research has been related to the analysis of the phenomenon of community of nationalities and cultures as a predictor of quality of life (QoL). The social motive of the research has been the historical continuity (for centuries) of the construction of the Vilnius cultural borderland. Here, the local community evolves from a group of many cultures to an intercultural community. Interpreting the data, therefore, requires a long perspective (a few generations) to understand the quality of relationships. We see social interactions and strategies for building them as a potential for social QoL in multicultural environments. Methods: The research has been conducted on a sample of 374 respondents, including Poles (172), Lithuanians (133), and Russians (69). A diagnostic poll has been used. The respondents were adolescents (15–16 years). The research answers the question: What variables form the interaction strategies of adolescents in a multicultural environment? The findings relate to interpreting the social interactions of adolescents within the boundaries of their living environment. The description of the social relations of adolescents provides an opportunity to implement the findings for further research on QoL. Results: An innovative outcome of the research is the analysis of 3 interaction strategies (attachment to national identification, intercultural dialogue, and multicultural community building) as a background for interpreting QoL in a multicultural environment. Their understanding is a useful knowledge for QoL researchers. The data analysis has taken into account cultural and generational (historical) sensitivities. Therefore, the team studying the data has consisted of researchers and residents of the Vilnius region. We used the interaction strategies of adolescents to describe the category of “social relationships” in nationally and culturally diverse settings.

scholarly journals Effects Of Student Life On SARS-Cov-2 Prevention At University

2020 ◽  
pp. 1-5
Author(s):  
Moska Sial ◽  
Manavi Purohit ◽  
Matan Bone
Keyword(s):  
Social Interactions ◽  
Student Life ◽  
Multifaceted Approach ◽  
University Campuses ◽  
Letter To The Editor ◽  
The Social ◽  
Social Side ◽  
Academic Year

Abstract The coronavirus 2019 (SARS-Cov-2) pandemic has proven to be a disaster in need of controlling. The disease has taken its toll on universities; as a consequence, universities must prepare their campuses in such a way that will reduce SARS-Cov-2 cases and ensure the safety of their students. This is why it is necessary to critically assess the risks involved in reopening university campuses. This letter to the editor highlights the importance of the social side of student life on campus, and how it might affect the precautions put in place to reduce SARS-Cov-2 transmission. Furthermore, this letter is proposing potential courses of action for universities to take during the pandemic, this forthcoming academic year. The ability of universities to contain the spread of the virus is limited, as they lack control over social interactions outside of campus. We discuss the multifaceted approach needed to educate students about off-campus transmission allowing the prevention of SARS-Cov-2 transmission.

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