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Early-life and parental predation risk shape fear acquisition in adult minnows.

Author(s): Crane AL, Meuthen D, Thapa H, Ferrari MCO, Brown GE

Exposure to predation risk can induce a fearful baseline state, as well as fear reactions toward novel situations (i.e., neophobia). Some research indicates that risk exposure during sensitive periods makes adults more prone to acquiring long-term fearful p...

Article GUID: 33125574
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
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
Effects of chronic exposure to selenomethionine on social learning outcomes in zebrafish (Danio rerio): serotonergic dysregulation and oxidative stress in the brain.

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

Chemosphere. 2020 Jan 11;247:125898 Authors: Attaran A, Salahinejad A, Naderi M, Crane AL, Niyogi S, Chivers DP

Article GUID: 31972490
An ecological framework of neophobia: from cells to organisms to populations.

Author(s): Crane AL, Brown GE, Chivers DP, Ferrari MCO

Biol Rev Camb Philos Soc. 2019 Oct 10;: Authors: Crane AL, Brown GE, Chivers DP, Ferrari MCO

Article GUID: 31599483
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
Time-dependent latent inhibition of predator-recognition learning.

Author(s): Crane AL, Chivers DP, Ferrari MCO

Biol Lett. 2019 May 31;15(5):20190183 Authors: Crane AL, Chivers DP, Ferrari MCO

Article GUID: 31064311
Title:Early-life and parental predation risk shape fear acquisition in adult minnows.
Authors:Crane AL,  Meuthen D,  Thapa H,  Ferrari MCO,  Brown GE
Link:https://www.ncbi.nlm.nih.gov/pubmed/33125574
DOI:10.1007/s10071-020-01439-3
Category:Anim Cogn
PMID:33125574
Dept Affiliation: BIOLOGY
1 Department of Biology, Concordia University, Montreal, Canada. adam.crane@concordia.ca.
2 Department of Biology, University of Saskatchewan, Saskatoon, Canada.
3 Institute of Evolutionary Biology and Ecology, University of Bonn, Bonn, Germany.
4 Biomedical Sciences, WCVM, University of Saskatchewan, Saskatoon, Canada.
5 Department of Biology, Concordia University, Montreal, Canada.

Description:

Early-life and parental predation risk shape fear acquisition in adult minnows.

Anim Cogn. 2020 Oct 30; :

Authors: Crane AL, Meuthen D, Thapa H, Ferrari MCO, Brown GE

Abstract

Exposure to predation risk can induce a fearful baseline state, as well as fear reactions toward novel situations (i.e., neophobia). Some research indicates that risk exposure during sensitive periods makes adults more prone to acquiring long-term fearful phenotypes. However, chronic risk can also lead to ignoring threats in order to maintain other activities. We sought to assess how a relatively long period of low risk, experienced either early in life or by the previous generation, influences fear behaviour acquired from a short period of high risk as adults. We used fathead minnows as study subjects and simulated predation risk with repeated exposures to conspecific chemical alarm cues. The period of high risk experienced by adults induced typical fear behaviour (baseline freezing and neophobia), whereas the early-life low-risk period 1 year prior caused only a reduction in baseline foraging. We found no evidence that the early-life risk significantly altered the fear acquired from the adult-risk period. However, in a second experiment, a low-risk period during the parental generation interacted with a high-risk period experienced by the adult offspring. The combination of both risk periods heightened baseline freezing despite parental risk having little effect independently. Hence, our study provides evidence that parental risk exposure can lead to an additive intergenerational effect on fear acquisition in minnows.

PMID: 33125574 [PubMed - as supplied by publisher]