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Producing knowledge by admitting ignorance: Enhancing data quality through an “I don’t know” option in citizen science

Nakayama, Maurizio Porfiri. Data curation: Tyrone J. Tolbert. Formal analysis: Marina Torre, Shinnosuke Nakayama, Maurizio Porfiri. Funding acquisition: Maurizio Porfiri. Investigation: Marina Torre ... , Tyrone J. Tolbert. Methodology: Shinnosuke Nakayama, Maurizio Porfiri. Software: Tyrone J. Tolbert. Supervision: Maurizio Porfiri. Writing ? original draft: Marina Torre, Shinnosuke Nakayama, Maurizio

Plasticity in leader–follower roles in human teams

In humans, emergence of leaders and followers is key to group performance, but little is known about the whys and hows of leadership. A particularly elusive question entails behavioral plasticity in leadership across social contexts. Addressing this question requires to eliminate social feedback between focal individuals and their partners in experiments that could illuminate the...

The role of previous social experience on risk-taking and leadership in three-spined sticklebacks

The emergence of leaders and followers is a key factor in facilitating group cohesion in animals. Individual group members have been shown to respond strongly to each other’s behavior and thereby affect the emergence and maintenance of these social roles. However, it is not known to what extent previous social experience might still affect individual’s leading and following...

Temperament and Hunger Interact to Determine the Emergence of Leaders in Pairs of Foraging Fish

Studies on leadership have focused either on physiological state as the key predictor (i.e. “leading according to need”), or else on temperamental asymmetries among group members (i.e. intrinsic leadership). In this paper, we explore how both factors interact in determining the emergence of leaders. We observed pairs of sticklebacks with varying degrees of temperamental...

Performance Assessment of Two Whole-Lake Acoustic Positional Telemetry Systems - Is Reality Mining of Free-Ranging Aquatic Animals Technologically Possible?

Acoustic positional telemetry systems (APTs) represent a novel approach to study the behaviour of free ranging aquatic animals in the wild at unprecedented detail. System manufactures promise remarkably high temporal and spatial resolution. However, the performance of APTs has rarely been rigorously tested at the level of entire ecosystems. Moreover, the effect of habitat...

Initiative, Personality and Leadership in Pairs of Foraging Fish

Studies of coordinated movement have found that, in many animal species, bolder individuals are more likely to initiate movement and shyer individuals to follow. Here, we show that in pairs of foraging stickleback fish, leadership is not merely a passive consequence of temperamental differences. Instead, the act of initiating a joint foraging trip out of cover itself brings about...

Body size and vigilance mediate asymmetric interference competition for food in fish larvae

Interference competition for food is difficult to measure because feeding rates altered by behavioral interactions of competitors are confounded by exploitative competition, the depletion of food over time. We quantified the magnitude of interference competition between individuals using a combination of experiments and computer simulations, which allowed us to remove the effect...