Cultural flies: Conformist social learning in fruitflies predicts long-lasting mate-choice traditions

Danchin, Étienne; Nöbel, Sabine; Pocheville, Arnaud; Dagaeff, Anne-Cecile; Demay, Léa; Alphand, Mathilde; Ranty-Roby, Sarah; Renssen, Lara van; Monier, Magdalena; Gazagne, Eva; Allain, Mélanie; Isabel, Guillaume

doi:10.1126/science.aat1590

Cited by 182 publications

(182 citation statements)

References 47 publications

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“…Hence, in order to gain mechanistic insight into how increasing group size impacts defense behaviors, we decided to use Drosophila melanogaster since it allows the use of groups of varying size, the large number of replicates required for detailed behavioral analysis and genetic access to specific neuronal subtypes. Importantly, fruit flies display social behaviors in different contexts (Battesti et al, 2012; Combes et al, 2012; Danchin et al, 2018; Kacsoh et al, 2015; Ramdya et al, 2015; Sarin and Dukas, 2009), namely social regulation of anti-predation strategies, such as the socially transmitted suppression of egg laying in the presence of predatory wasps (Sarin and Dukas, 2009) or the reduction in erratic turns during evasive flights when in a group, compared to when alone, in the presence of dragonflies (Combes et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Behavioral and neuronal underpinnings of safety in numbers in fruit flies

Ferreira

Moita

2019

Preprint

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13Living in a group allows individuals to decrease their defenses enabling other beneficial 14behaviors such as foraging. The detection of a threat through social cues is widely reported, 15however the safety cues that guide animals to break away from a defensive behavior and 16resume alternate activities remain elusive. Here we show that fruit flies displayed a graded 17 decrease in freezing behavior, triggered by an inescapable threat, with increasing group 18 sizes. Furthermore, flies used the cessation of movement of other flies as a cue of threat and 19 its resumption as a cue of safety. Finally, we found that lobula columnar neurons, LC11, 20 mediate the propensity for freezing flies to resume moving in response to the movement of 21 others. By identifying visual motion cues, and the neurons involved in their processing, as 22the basis of a social safety cue this study brings new insights into the neuronal basis of 23 safety in numbers. 24 25

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Section: Introductionmentioning

confidence: 99%

Behavioral and neuronal underpinnings of safety in numbers in fruit flies

Ferreira

Moita

2019

Preprint

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“…For instance, Drosophila larvae cooperate in burrowing to dig more effectively 78,79 and attract each other through pheromones 80 . Moreover, adult flies aggregate on food and oviposition sites, select food patches based on the presence of conspecifics 81,82 , use collective behavioral responses to avoid aversive cues 83 , interact when competing for resources 49 or courtship and mating (reviewed in 36 ), and exhibit social learning 84,85 . In spite of this, in our assays we did not observe any behavioral alignment at the population level, even in traits such as the right-left position in a dyad, which are lateralized at the population level in other species 5,[15][16][17]59,60 .…”

Section: Discussionmentioning

confidence: 99%

Individual, but not population asymmetries, are modulated by social environment and genotype inDrosophila melanogaster

Versace

Caffini

Werkhoven

et al. 2019

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Theory predicts that social interactions can induce an alignment of behavioral asymmetries between individuals (i.e., population-level lateralization), but evidence for this effect is mixed. To understand how interaction with other individuals affects behavioral asymmetries, we systematically manipulated the social environment of Drosophila melanogaster, testing individual flies and dyads (female-male, female-female and male-male pairs). In these social contexts we measured individual and population asymmetries in individual behaviors (circling asymmetry, wing use) and dyadic behaviors (relative position and orientation between two flies) in five different genotypes. We reasoned that if coordination between individuals drives alignment of behavioral asymmetries, greater alignment at the population-level should be observed in social contexts compared to solitary individuals. We observed that the presence of other individuals influenced the behavior and position of flies but had unexpected effects with respect to individual and population asymmetries: individual-level asymmetries were strong and modulated by the social context but population-level asymmetries were mild or absent. Moreover, the strength of individual-level asymmetries differed between strains, but this was not the case for population-level asymmetries. These findings suggest that the degree of social interaction found in Drosophila is insufficient to drive population-level behavioral asymmetries.

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“…The fine scale social structure of animal populations plays an important role in all social processes, including pathogen and cultural transmission 1,2,3,4 and the evolution of social behaviors 5,6 . For these reasons, social structure and an individual's position in it, affects reproductive success, longevity, and sexual selection 7,8,9 .…”

Section: Introductionmentioning

confidence: 99%

Rank-dependent social inheritance determines social network structure in a wild mammal population

Ilany

Holekamp

Akçay

2020

Preprint

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The structure of animal social networks influences survival and reproductive success, as well as pathogen and information transmission. However, the general mechanisms determining social structure remain unclear. Using data on 73,767 social interactions among wild spotted hyenas over 27 years, we show that a process of social inheritance determines how offspring relationships are formed and maintained. The relationships of offspring with other hyenas are similar to those of their mothers over up to six years, and the degree of similarity increases with maternal social rank. The strength of mother-offspring relationship affects social inheritance and is positively correlated with offspring longevity. These results confirm the hypothesis that social inheritance of relationships can structure animal social networks and be subject to adaptive tradeoffs.

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Cultural flies: Conformist social learning in fruitflies predicts long-lasting mate-choice traditions

Cited by 182 publications

References 47 publications

Behavioral and neuronal underpinnings of safety in numbers in fruit flies

Behavioral and neuronal underpinnings of safety in numbers in fruit flies

Individual, but not population asymmetries, are modulated by social environment and genotype inDrosophila melanogaster

Rank-dependent social inheritance determines social network structure in a wild mammal population

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