scholarly journals Non-kin Cooperation in Ants

2021 ◽  
Vol 9 ◽  
Author(s):  
Andrew V. Suarez ◽  
Michael A. D. Goodisman
Keyword(s):  
Social Behavior ◽  
Kin Selection ◽  
Social Evolution ◽  
Future Research ◽  
Abiotic Environment ◽  
Cooperative Interactions ◽  
Related Individuals ◽  
Reproductive Division Of Labor ◽  
Reproductive Division ◽  
Insight Into

Eusociality represents an extreme form of social behavior characterized by a reproductive division of labor. Eusociality necessarily evolved through kin selection, which requires interactions among related individuals. However, many eusocial taxa also show cooperation between non-kin groups, challenging the idea that cooperative actions should only occur among relatives. This review explores the causes and consequences of non-kin cooperation in ants. Ants display a diversity of behaviors that lead to non-kin cooperation within and between species. These interactions occur among both reproductive and non-reproductive individuals. The proximate and ultimate mechanisms leading to non-kin cooperative interactions differ substantially depending on the biotic and abiotic environment. We end this review with directions for future research and suggest that the investigation of non-kin cooperative actions provides insight into processes leading to social evolution.

Human and ant social behavior should be compared in a very careful way to draw valid parallels

2016 ◽  
Vol 39 ◽  
Author(s):  
Ewa Joanna Godzińska
Keyword(s):  
Social Behavior ◽  
Division Of Labor ◽  
Social Insects ◽  
Information Transfer ◽  
Present Knowledge ◽  
Evolutionary Origins ◽  
Interesting Discussion ◽  
Human Social Behavior ◽  
Reproductive Division Of Labor ◽  
Reproductive Division

AbstractGowdy & Krall provide an interesting discussion of evolutionary origins and consequences of ultrasociality. However, some of their statements concerning various features of ant and human social behavior do not adequately reflect present knowledge about the discussed issues, which include, among others, polyethism, cultural information transfer, within-group conflicts and resistance in ant societies, and reproductive division of labor in humans.Gowdy & Krall (G&K) provide an interesting discussion of evolutionary origins and consequences of ultrasociality, an advanced form of social behavior that evolved independently in both social insects and humans. Their reflections are thought-provoking, but some statements concerning various features of ant and human social behavior do not reflect adequately the present knowledge about the discussed issues.

scholarly journals Socioecology of the Australian Tree Skink (Egernia striolata)

2021 ◽  
Vol 9 ◽  
Author(s):  
Julia L. Riley ◽  
Daniel W. A. Noble ◽  
Adam J. Stow ◽  
Peri E. Bolton ◽  
Geoffrey M. While ◽  
...  
Keyword(s):  
Social Behavior ◽  
Social Evolution ◽  
Population Variability ◽  
Population Variation ◽  
Future Research ◽  
Rock Outcrops ◽  
The Social ◽  
High Site ◽  
Social Associations ◽  
High Degree

There is great diversity in social behavior across the animal kingdom. Understanding the factors responsible for this diversity can help inform theory about how sociality evolves and is maintained. The Australian Tree Skink (Egernia striolata) exhibits inter- and intra-population variability in sociality and is therefore a good system for informing models of social evolution. Here, we conducted a multi-year study of a Tree Skink population to describe intra-population variation in the social organization and mating system of this species. Skinks aggregated in small groups of 2–5 individuals, and these aggregations were typically associated with shared shelter sites (crevices and hollows within rocks and trees). Aggregations were typically made up of one or more adult females and, often, one male and/or juvenile(s). Social network and spatial overlap analyses showed that social associations were strongly biased toward kin. Tree skinks also exhibited high site fidelity regardless of age or sex. There were high levels of genetic monogamy observed with most females (87%) and males (68%) only breeding with a single partner. Our results indicate that Tree Skinks reside in small family groups and are monogamous, which corresponds with existing research across populations. Similar to previous work, our study area consisted of discrete habitat patches (i.e., rock outcrops, trees, or both), which likely limits offspring dispersal and promotes social tolerance between parents and their offspring. Our study clearly demonstrates that there is intra-population variability in Tree Skink social behavior, but it also provides evidence that there is a high degree of inter-population consistency in sociality across their geographic range. We also highlight promising possible avenues for future research, specifically discussing the importance of studying the nature and extent of Tree Skink parental care and quantifying the fitness outcomes of kin-based sociality in this species, which are topics that will further our understanding of the mechanisms underlying variation in vertebrate social behavior.

scholarly journals Chemical Variation among Castes, Female Life Stages and Populations of the Facultative Eusocial Sweat Bee Halictus rubicundus (Hymenoptera: Halictidae)

2021 ◽  
Author(s):  
Iris Steitz ◽  
Robert J Paxton ◽  
Stefan Schulz ◽  
Manfred Ayasse
Keyword(s):  
Chemical Communication ◽  
North American ◽  
Specific Chemical ◽  
Eusocial Insects ◽  
Queen Signal ◽  
Ovarian Activation ◽  
Chemical Profiles ◽  
Reproductive Division Of Labor ◽  
Reproductive Division ◽  
Eusocial Species

AbstractIn eusocial insects, chemical communication is crucial for mediating many aspects of social activities, especially the regulation of reproduction. Though queen signals are known to decrease ovarian activation of workers in highly eusocial species, little is known about their evolution. In contrast, some primitively eusocial species are thought to control worker reproduction through physical aggression by the queen rather than via pheromones, suggesting the evolutionary establishment of chemical signals with more derived sociality. However, studies supporting this hypothesis are largely missing. Socially polymorphic halictid bees, such as Halictus rubicundus, with social and solitary populations in both Europe and North America, offer excellent opportunities to illuminate the evolution of caste-specific signals. Here we compared the chemical profiles of social and solitary populations from both continents and tested whether (i) population or social level affect chemical dissimilarity and whether (ii) caste-specific patterns reflect a conserved queen signal. Our results demonstrate unique odor profiles of European and North American populations, mainly due to different isomers of n-alkenes and macrocyclic lactones; chemical differences may be indicative of phylogeographic drift in odor profiles. We also found common compounds overproduced in queens compared to workers in both populations, indicating a potential conserved queen signal. However, North American populations have a lower caste-specific chemical dissimilarity than European populations which raises the question if both use different mechanisms of regulating reproductive division of labor. Therefore, our study gives new insights into the evolution of eusocial behavior and the role of chemical communication in the inhibition of reproduction.

scholarly journals How Narcissism Shapes Responses to Antisocial and Prosocial Behavior: Hypo-Responsiveness or Hyper-Responsiveness?

2021 ◽  
pp. 014616722110072
Author(s):  
Jiafang Chen ◽  
Barbara Nevicka ◽  
Astrid C. Homan ◽  
Gerben A. van Kleef
Keyword(s):  
Social Behavior ◽  
Prosocial Behavior ◽  
Social Functioning ◽  
Social Order ◽  
Social Behaviors ◽  
Moral Character ◽  
Prosocial Behaviors ◽  
Future Research ◽  
Clear Cut ◽  
Reward And Punishment

Narcissists have a relatively higher proclivity for displaying antisocial rather than prosocial behaviors, suggesting a comparatively higher tendency for unfavorably impacting societies. However, maintenance of social order also depends on appropriate responses to others’ social behavior. Once we focus on narcissists as observers rather than actors, their impact on social functioning becomes less clear-cut. Theoretical arguments suggest that narcissists could be either hypo-responsive or hyper-responsive to others’ social behavior. Across four studies, we examined narcissists’ responsiveness to variations in others’ antisocial and prosocial behaviors. Results showed that narcissists differentiated less between others’ antisociality/prosociality, as reflected in their subsequent moral character evaluations (Studies 1–4) and reward and punishment (Studies 3 and 4). These results suggest that narcissists are hypo-responsive to others’ social behaviors. Implications and directions for future research are discussed.

Towards Interconnected Blockchains

2021 ◽  
Vol 54 (7) ◽  
pp. 1-39
Author(s):  
Ankur Lohachab ◽  
Saurabh Garg ◽  
Byeong Kang ◽  
Muhammad Bilal Amin ◽  
Junmin Lee ◽  
...  
Keyword(s):  
State Of The Art ◽  
The State ◽  
Future Research ◽  
Missing Link ◽  
Layered Architecture ◽  
Blockchain Technology ◽  
Wide Scale ◽  
Effective Development ◽  
Insight Into ◽  
Game Changer

Unprecedented attention towards blockchain technology is serving as a game-changer in fostering the development of blockchain-enabled distinctive frameworks. However, fragmentation unleashed by its underlying concepts hinders different stakeholders from effectively utilizing blockchain-supported services, resulting in the obstruction of its wide-scale adoption. To explore synergies among the isolated frameworks requires comprehensively studying inter-blockchain communication approaches. These approaches broadly come under the umbrella of Blockchain Interoperability (BI) notion, as it can facilitate a novel paradigm of an integrated blockchain ecosystem that connects state-of-the-art disparate blockchains. Currently, there is a lack of studies that comprehensively review BI, which works as a stumbling block in its development. Therefore, this article aims to articulate potential of BI by reviewing it from diverse perspectives. Beginning with a glance of blockchain architecture fundamentals, this article discusses its associated platforms, taxonomy, and consensus mechanisms. Subsequently, it argues about BI’s requirement by exemplifying its potential opportunities and application areas. Concerning BI, an architecture seems to be a missing link. Hence, this article introduces a layered architecture for the effective development of protocols and methods for interoperable blockchains. Furthermore, this article proposes an in-depth BI research taxonomy and provides an insight into the state-of-the-art projects. Finally, it determines possible open challenges and future research in the domain.

The Application of the Blockchain Technology in Voting Systems

2021 ◽  
Vol 54 (3) ◽  
pp. 1-28
Author(s):  
Jun Huang ◽  
Debiao He ◽  
Mohammad S. Obaidat ◽  
Pandi Vijayakumar ◽  
Min Luo ◽  
...  
Keyword(s):  
Research Agenda ◽  
Future Research ◽  
Voting Systems ◽  
Comprehensive Review ◽  
Formal Expression ◽  
Future Research Agenda ◽  
Blockchain Technology ◽  
Peer Network ◽  
Peer To Peer Network ◽  
Insight Into

Voting is a formal expression of opinion or choice, either positive or negative, made by an individual or a group of individuals. However, conventional voting systems tend to be centralized, which are known to suffer from security and efficiency limitations. Hence, there has been a trend of moving to decentralized voting systems, such as those based on blockchain. The latter is a decentralized digital ledger in a peer-to-peer network, where a copy of the append-only ledger of digitally signed and encrypted transactions is maintained by each participant. Therefore, in this article, we perform a comprehensive review of blockchain-based voting systems and classify them based on a number of features (e.g., the types of blockchain used, the consensus approaches used, and the scale of participants). By systematically analyzing and comparing the different blockchain-based voting systems, we also identify a number of limitations and research opportunities. Hopefully, this survey will provide an in-depth insight into the potential utility of blockchain in voting systems and device future research agenda.

scholarly journals A Conceptual Framework and Propositions for the Acceptance of Mobile Services

2007 ◽  
Vol 2 (2) ◽  
pp. 61-73 ◽  
Author(s):  
Sally Rao ◽  
Indrit Troshani
Keyword(s):  
Mobile Services ◽  
User Acceptance ◽  
Future Research ◽  
Research Directions ◽  
Consumer Adoption ◽  
Business Opportunities ◽  
Managerial Implications ◽  
Lead Users ◽  
Future Research Directions ◽  
Insight Into

Mobile services are heralded to create a tremendous spectrum of business opportunities. User acceptance of these services is of paramount importance. Consequently, a deeper insight into theory-based research is required to better understand the underlying motivations that lead users to adopting mobile services. As mobile services bring additional functional dimensions, including hedonic and experiential aspects, using extant models for predicting mobile services acceptance by individuals may be inadequate. The aim of this paper is to explore, analyse and critically assess the use of existing acceptance theories in the light of the evolving and ubiquitous mobile services and their underlying technologies. Constructs affecting consumer adoption behaviour are discussed and relevant propositions are made. Managerial implications are explored and future research directions are also identified.

Export von (Militär-)Musikinstrumenten von Berlin nach Zentral- und Südamerika um 1900

2021 ◽  
Vol 74 (4) ◽  
pp. 308-317
Author(s):  
Christian Breternitz
Keyword(s):  
South America ◽  
Musical Instruments ◽  
Future Research ◽  
Sheet Music ◽  
International Context ◽  
Military Bands ◽  
Musical Taste ◽  
Insight Into

The article outlines the significance of Prussian military music of the 19th and early 20th centuries in an international context. It focuses on deliveries of musical instruments and sheet music by the Berlin company C. W. Moritz to Central and South America around 1900. The delivery lists of 1897/98 for the Colombian military bands show that they were equipped according to the Prussian model, which goes back to the ideas of Wilhelm Wieprecht. He reformed and standardised the Prussian military music system between the 1830s and 1860s, thus creating the basis for its success. The sheet music enclosed with the musical instruments gives an insight into the popular musical taste of the period around 1900, which was increasingly introduced to Central and South America. Future research will ask what impact such imports of music and musical instruments had on the development of music in Central and South America. (Vorlage)

scholarly journals Individual goals and social preferences in operational decisions

2019 ◽  
Vol 39 (1) ◽  
pp. 116-137 ◽  
Author(s):  
Nienke Hofstra ◽  
Wout Dullaert ◽  
Sander De Leeuw ◽  
Eirini Spiliotopoulou
Keyword(s):  
Decision Making ◽  
Social Preferences ◽  
Operational Planning ◽  
Future Research ◽  
Monetary Incentives ◽  
Content Type ◽  
Planning Decisions ◽  
Multiple Data ◽  
Human Decision ◽  
Insight Into

Purpose The purpose of this paper is to develop propositions explaining the influence of individual goals and social preferences on human decision making in transport planning. The aim is to understand which individual goals and social preferences planners pursue and how these influence planners’ decisions. Design/methodology/approach Propositions are developed based on investigation of decision making of transport planners in a Dutch logistics service provider using multiple data collection methods. Findings The study shows how decision making of transport planners is motivated by individual goals as well as social preferences for reciprocity and group identity. Research limitations/implications Further research including transaction data analysis is needed to triangulate findings and to strengthen conclusions. Propositions are developed to be tested in future research. Practical implications Results suggest that efforts to guide planners in their decision making should go beyond traditional (monetary) incentives and consider their individual goals and social preferences. Moreover, this study provides insight into why transport planners deviate from desired behaviour. Originality/value While individual decision making plays an essential role in operational planning, the factors influencing how individuals make operational planning decisions are not fully understood.

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