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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


Exploratory decisions of Trinidadian guppies when uncertain about predation risk

Author(s): Crane AL; Demers EE; Feyten LEA; Ramnarine IW; Brown GE;

Animals can reduce their uncertainty of predation risk by gathering new information via exploration behaviour. However, a decision to explore may also be costly due to increased predator exposure. Here, we found contextual effects of predation risk on the exploratory activity of Trinidadian guppies Poecilia reticulata in a novel environment. First, guppie ...

Article GUID: 34741669


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


The propensity for re-triggered predation fear in a prey fish.

Author(s): Crane AL, Feyten LEA, Ramnarine IW, Brown GE

Sci Rep. 2020 Jun 09;10(1):9253 Authors: Crane AL, Feyten LEA, Ramnarine IW, Brown GE

Article GUID: 32518253


Sender and receiver experience alters the response of fish to disturbance cues.

Author(s): Goldman JA, Feyten LEA, Ramnarine IW, Brown GE

Curr Zool. 2020 Jun;66(3):255-261 Authors: Goldman JA, Feyten LEA, Ramnarine IW, Brown GE

Article GUID: 32440286


High-risk environments promote chemical disturbance signalling among socially familiar Trinidadian guppies.

Author(s): Crane AL, Feyten LEA, Ramnarine IW, Brown GE

Oecologia. 2020 Apr 15;: Authors: Crane AL, Feyten LEA, Ramnarine IW, Brown GE

Article GUID: 32296954


Predation risk assessment based on uncertain information: interacting effects of known and unknown cues.

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

Curr Zool. 2019 Feb;65(1):75-76 Authors: Feyten LEA, Demers EEM, Ramnarine IW, Brown GE PMID: 30697241 [PubMed]

Article GUID: 30697241


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