Do guppies play TIT FOR TAT during predator inspection visits?

1988 ◽  
Vol 23 (6) ◽  
pp. 395-399 ◽  
Author(s):  
L. A. Dugatkin
Keyword(s):  
Predator Inspection ◽  
Tit For Tat

scholarly journals Conditional approach as cooperation in predator inspection: a role for serotonin?

2018 ◽  
Author(s):  
Ana Flávia Nogueira Pimentel ◽  
Tamires dos Santos Carvalho ◽  
Fernando Lima ◽  
Monica Lima-Maximino ◽  
Marta Candeias Soares ◽  
...  
Keyword(s):  
Poecilia Reticulata ◽  
Cooperative Behavior ◽  
Potential Predator ◽  
Refuge Use ◽  
Predator Inspection ◽  
Link Type ◽  
Conditional Approach ◽  
Tit For Tat ◽  
Link Data ◽  
Number Of Individuals

AbstractIn guppies (Poecilia reticulata), a small number of individuals break away from a shoal and approach a potential predator, a behavior termed “predator inspection”. These animals often employ a “conditional approach” strategy, in which an individual approaches the predator in the first move and subsequently approaches it only if a second individual swims even with it during inspection. This strategy is analogous to the “tit-for-tat” strategy of the Prisoner’s Dilemma, suggesting that it could be used to study cooperation. Serotonin is thought to mediate cooperative behavior in other fish species. Exposure to the animated image of a predator in a tank that contained a parallel mirror – mimicking an equally cooperating conspecific – promoted inspection and decreased refuge use, but increased freezing, suggesting that conditional approach is also associated with fear. To understand whether serotonin participates in conditional approach in guppies, we treated animals with either vehicle (Cortland’s salt solution), fluoxetine (2.5 mg/kg) or metergoline (1 mg/kg), and tested then in a predator inspection paradigm. Fluoxetine increased the time the animal spent inspecting the predator image, while metergoline decreased it. Fluoxetine also decreased time spent avoiding the predator and increased freezing, while metergoline decreased freezing. These results suggest that phasic increases in serotonin levels promote conditional approach, suggesting a role for this neurotransmitter in cooperation.Preprint: https://doi.org/10.1101/436345; Data and scripts: https://github.com/lanec-unifesspa/TFT

Tit-for-tat during predator inspection, or shoaling?

1990 ◽  
Vol 39 (3) ◽  
pp. 603-604 ◽  
Author(s):  
W. Mitchell Masters ◽  
Thomas A. Waite
Keyword(s):  
Predator Inspection ◽  
Tit For Tat
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