scholarly journals Honeybee dance-followers respond similarly to dances regardless of their spatial information content

2021 ◽  
Author(s):  
Matthew J. Hasenjager ◽  
William Hoppitt ◽  
Ellouise Leadbeater

AbstractHoneybees famously use waggle dances to communicate foraging locations to nestmates in the hive, thereby recruiting them to those sites. The decision to dance is governed by rules that, when operating collectively, are assumed to direct foragers to the most profitable locations with little input from potential recruits, who are presumed to respond similarly to any dance regardless of its information content. Yet variation in receiver responses can qualitatively alter collective outcomes. Here, we use network-based diffusion analysis to compare the collective influence of dance information during recruitment to feeders at different distances. We further assess how any such effects might be achieved at the individual level by dance-followers either persisting with known sites when novel targets are distant and/or seeking more accurate spatial information to guide long-distance searches. Contrary to predictions, we found no evidence that dance-followers’ responses depended on target distance. While dance information was always key to feeder discovery, its importance did not vary with feeder distance, and bees were in fact quicker to abandon previously rewarding sites for distant alternatives. These findings provide empirical support for the longstanding assumption that self-organized foraging by honeybee colonies relies heavily on signal performance rules with limited input from recipients.

1988 ◽  
Vol 41 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Bruce Bueno de Mesquita ◽  
David Lalman

Systemic theorists emphasize the interplay of the distribution of power, the number of poles, and their tightness in predicting the occurrence of major-power war. The authors link individual-level incentives to these systemic constraints as factors that might affect the likelihood of war. They believe that their model specification is more comprehensive than any prior effort to evaluate the impact of structural attributes on the risk of major-power war. Empirical results from the individual-level prespective are encouraging when one examines European crises from 1816 to 1965, but there is no evidence that decision makers were significantly constrained by variations in the structural attributes. Neither the distribution of power nor the number or tightness of poles appears to influence the risk of war.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ahmad Raza Bilal ◽  
Tehreem Fatima

Purpose This study aims to extend the much-held strategic entrepreneurial orientation stance and conceptualized it as a psychological disposition of small- and medium-scale enterprises (SMEs) owners. Based on this notion, the authors theorized that individual entrepreneurial orientation (IEO) is a precursor of success in manufacturing sector SMEs. Building on the credo of action regulation, the authors clarified the IEO and SMEs’ success association by introducing exploration activities as a conduit. Further, the authors posited that entrepreneurial alertness augments the nexus of IEO, exploration activities and SMEs success. Design/methodology/approach A three-wave survey was done by drawing a cluster-based sample of 389 SME owners in the manufacturing sector of Pakistan. The mediation and moderation analysis were done by PROCESS macro that uses bootstrapping with 5,000 draws to calculate the indirect (Model 4), conditional and conditional indirect effects (Model 7) at a 95% confidence interval. Findings The results offered empirical support to the conjectured association among IEO and SMEs’ success mediated by exploration activities. Moreover, the conditional direct (between IEO and exploration activities) and indirect impact (among IEO and SMEs’ success mediated by exploration activities) of entrepreneurial alertness was substantiated. Originality/value The authors added to the sprouting body of knowledge in the field of entrepreneurial orientation by focusing on its individual-level psychological conception. The authors have unlocked the interplay between IEO and SMEs’ success via the role of action characteristics of exploration activities and entrepreneurial alertness based on the action regulation tenet. Thus, the authors made a novel contribution by linking the micro-level entrepreneurial orientation and actions with macro-level SMEs' success.


2010 ◽  
Vol 278 (1710) ◽  
pp. 1414-1418 ◽  
Author(s):  
Christian Skov ◽  
Henrik Baktoft ◽  
Jakob Brodersen ◽  
Christer Brönmark ◽  
Ben B. Chapman ◽  
...  

Partial migration, in which a fraction of a population migrate and the rest remain resident, occurs in an extensive range of species and can have powerful ecological consequences. The question of what drives differences in individual migratory tendency is a contentious one. It has been shown that the timing of partial migration is based upon a trade-off between seasonal fluctuations in predation risk and growth potential. Phenotypic variation in either individual predation risk or growth potential should thus mediate the strength of the trade-off and ultimately predict patterns of partial migration at the individual level (i.e. which individuals migrate and which remain resident). We provide cross-population empirical support for the importance of one component of this model—individual predation risk—in predicting partial migration in wild populations of bream Abramis brama , a freshwater fish. Smaller, high-risk individuals migrate with a higher probability than larger, low-risk individuals, and we suggest that predation risk maintains size-dependent partial migration in this system.


2017 ◽  
Vol 372 (1727) ◽  
pp. 20160235 ◽  
Author(s):  
B. Voelkl ◽  
J. Fritz

A considerable proportion of the world's bird species undertake seasonal long-distance migrations. These journeys are energetically demanding. Two major behavioural means to reduce energy expenditure have been suggested: the use of thermal uplifts for a soaring-gliding migration style and travelling in echelon or V-shaped formation. Both strategies have immediate consequences for the social organization of the birds as they either cause large aggregations or require travelling in small and stable groups. Here, we first discuss those consequences, and second present an analysis of formation flight in a flock of northern bald ibis on their first southbound migration. We observe clear correlations between leading and trailing on the dyadic level but only a weak correlation on the individual level during independent flight and no convincing correlation during the human guided part of the migration. This pattern is suggestive of direct reciprocation as a means for establishing cooperation during formation flight. In general, we conclude that behavioural adaptations for dealing with physiological constraints on long-distance migrations either necessitate or ultimately foster formation of social groups with different characteristics. Patterns and social organization of birds travelling in groups have been elusive to study; however, new tracking technology—foremost lightweight GPS units—will provide more insights in the near future. This article is part of the themed issue ‘Physiological determinants of social behaviour in animals’.


2015 ◽  
Vol 25 (61) ◽  
pp. 211-220 ◽  
Author(s):  
Juliana Moraes de Sousa ◽  
Juliana Barreiros Porto

Despite the large quantity of research on person-organization (PO) fit, there is a lack of empirical research using axiological theories applicable to the value structure at the individual and organizational levels. In this study, we incorporated the PO fit literature, Schwartz’ values theory and Warr’s vitamin analogy to evaluate the effect of values’ PO fit on happiness at work. Using a sample of 145 questionnaires collected in a military organization, data analyses were performed using hierarchical quadratic regressions and surface analysis of polynomial regressions, conducted at an individual level. Individual values moderated the curvilinear relationship between organizational values and happiness at work (R2 = .25; p < .01). Additionally, agreement between higher levels of values promoted higher levels of happiness at work (.07 ≥ R2 ≤ .18; p < .05). We concluded that axiological PO fit affects happiness at work and provide empirical support for Warr’s vitamin analogy.


2020 ◽  
Vol 51 (3) ◽  
pp. 183-198
Author(s):  
Wiktor Soral ◽  
Mirosław Kofta

Abstract. The importance of various trait dimensions explaining positive global self-esteem has been the subject of numerous studies. While some have provided support for the importance of agency, others have highlighted the importance of communion. This discrepancy can be explained, if one takes into account that people define and value their self both in individual and in collective terms. Two studies ( N = 367 and N = 263) examined the extent to which competence (an aspect of agency), morality, and sociability (the aspects of communion) promote high self-esteem at the individual and the collective level. In both studies, competence was the strongest predictor of self-esteem at the individual level, whereas morality was the strongest predictor of self-esteem at the collective level.


2019 ◽  
Vol 37 (1) ◽  
pp. 18-34
Author(s):  
Edward C. Warburton

This essay considers metonymy in dance from the perspective of cognitive science. My goal is to unpack the roles of metaphor and metonymy in dance thought and action: how do they arise, how are they understood, how are they to be explained, and in what ways do they determine a person's doing of dance? The premise of this essay is that language matters at the cultural level and can be determinative at the individual level. I contend that some figures of speech, especially metonymic labels like ‘bunhead’, can not only discourage but dehumanize young dancers, treating them not as subjects who dance but as objects to be danced. The use of metonymy to sort young dancers may undermine the development of healthy self-image, impede strong identity formation, and retard creative-artistic development. The paper concludes with a discussion of the influence of metonymy in dance and implications for dance educators.


Author(s):  
Pauline Oustric ◽  
Kristine Beaulieu ◽  
Nuno Casanova ◽  
Francois Husson ◽  
Catherine Gibbons ◽  
...  

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