2014
DOI: 10.1016/j.yhbeh.2014.06.010
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Cortisol mediates cleaner wrasse switch from cooperation to cheating and tactical deception

Abstract: Recent empirical research, mostly done on humans, recognizes that individuals" physiological state affects levels of cooperation. An individual"s internal state may affect the payoffs of behavioural alternatives, which in turn could influence the decision to either cooperate or to defect. However, little is known about the physiology underlying condition dependent cooperation. Here, we demonstrate that shifts in cortisol levels affect levels of cooperation in wild cleaner wrasse Labroides dimidiatus. These cle… Show more

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Cited by 54 publications
(64 citation statements)
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“…In the obligate cleaner L dimidiatus, an increase in AVT levels, induced with exogenous peripheral infusions, caused them to cease all mutualistic activities, but not conspecific behaviour (Soares et al, 2012a(Soares et al, , 2012c. These results contrast with those found with cortisol treatments, with cleaners altering strategic tactics towards their clientele (see section 5.1 above, and Soares et al (2014) and Binning et al (2017)). Thus, different stress response magnitudes, appear to produce significant behavioural responses.…”
Section: A Cleaner Is Not Always a Cleaner: Stress Involvement In Lifcontrasting
confidence: 61%
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“…In the obligate cleaner L dimidiatus, an increase in AVT levels, induced with exogenous peripheral infusions, caused them to cease all mutualistic activities, but not conspecific behaviour (Soares et al, 2012a(Soares et al, , 2012c. These results contrast with those found with cortisol treatments, with cleaners altering strategic tactics towards their clientele (see section 5.1 above, and Soares et al (2014) and Binning et al (2017)). Thus, different stress response magnitudes, appear to produce significant behavioural responses.…”
Section: A Cleaner Is Not Always a Cleaner: Stress Involvement In Lifcontrasting
confidence: 61%
“…These mechanisms have been further to propitiate cleaners behavioural switch from cooperation to cheating (Soares et al, 2014). Specifically, cleaners behavioural change occurs under influence of rising cortisol levels, with these providing more tactile stimulation to smaller clients as to gain access to bigger ones, that are then bitten (Soares et al, 2014).…”
Section: Stress Mediation Of Cleaning Behaviourmentioning
confidence: 99%
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“…Thus, when cooperation has only long‐term rewards, such as an increased chance of reproduction in the distant future, we predict that increased GCs are likely to reduce cooperative motivation and impair cooperative coordination. For example, after being experimentally stressed, female cleaner wrasses ( Labroides dimidiatus ) switched to a more selfish and less cooperative behavior where they bite nutritious mucus from their interspecific client fish partner (Soares, Cardoso, Grutter, Oliveira, & Bshary, 2014). This may be costly in terms of jeopardizing future partnerships with their clients, but provides more proximate benefits.…”
Section: Evidence That Variation In Stress Physiology Is Associated Wmentioning
confidence: 99%
“…This methodology has been extensively applied before, without a similar occurrence ever being reported (Soares et al 2012(Soares et al , 2014Paula et al 2015).…”
mentioning
confidence: 99%