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Microhabitat conditions drive uncertainty of risk and shape neophobic responses in Trinidadian guppies, Poecilia reticulata

Author(s): Feyten LEA; Ramnarine IW; Brown GE;

In response to uncertain risks, prey may rely on neophobic phenotypes to reduce the costs associated with the lack of information regarding local conditions. Neophobia has been shown to be driven by information reliability, ambient risk and predator diversity, all of which shape uncertainty of risk. We similarly expect environmental conditions to shape un ...

Article GUID: 37753307


Assessing effects of predator density and diversity on neophobia in Trinidadian guppies

Author(s): Feyten LEA; Demers EEM; Ramnarine IW; Brown GE;

Neophobic predator avoidance, where prey actively avoid novel stimuli, is thought to allow prey to cope with the inability to predict predation risk (i.e. uncertainty) while reducing the costs associated with learning. Recent studies suggest that neophobia is elicited as a response to unpredictable and elevated mean predation risk, and is linked to experi ...

Article GUID: 35907447


Exploring the threat-sensitive predator avoidance hypothesis on mate competition in two wild populations of Trinidadian guppies.

Author(s): Chuard PJC, Grant JWA, Ramnarine IW, Brown GE

The intensity of mate competition is often influenced by predation pressure. The threat-sensitive predator avoidance hypothesis predicts that prey should precisely adjust their fitness-related activities to the level of perceived acute predation risk and this effect should be stronger under high background risk. Individuals should compensate during period ...

Article GUID: 32860863


Chronic exposure to dietary selenomethionine dysregulates the genes involved in serotonergic neurotransmission and alters social and antipredator behaviours in zebrafish (Danio rerio).

Author(s): Attaran A, Salahinejad A, Crane AL, Niyogi S, Chivers DP

Environ Pollut. 2019 Mar;246:837-844 Authors: Attaran A, Salahinejad A, Crane AL, Niyogi S, Chivers DP

Article GUID: 30623840


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