Keyword search (4,163 papers available)

"Ramnarine IW" Authored Publications:

Title Authors PubMed ID
1 Contextual use of male-male social information by Trinidadian guppies Brusseau AJP; Dumaresq-Synnott F; Morris J; Nagl AC; Ramnarine IW; Crane AL; Brown GE; 41460359
BIOLOGY
2 Anxiolytic effects of diazepam in Trinidadian guppies exposed to chemical cues indicating predation risk Crane AL; Feyten LEA; Brusseau AJP; Dumaresq Synnott F; Ramnarine IW; Ferrari MCO; Brown GE; 40905336
CONCORDIA
3 Anxiolytic effects of diazepam in Trinidadian guppies exposed to chemical cues indicating predation risk Crane AL; Feyten LEA; Brusseau AJP; Dumaresq Synnott F; Ramnarine IW; Ferrari MCO; Brown GE; 40905351
CONCORDIA
4 Antipredator decisions of male Trinidadian guppies ( em Poecilia reticulata /em ) depend on social cues from females Brusseau AJP; Feyten LEA; Crane AL; Ramnarine IW; Ferrari MCO; Brown GE; 40264715
BIOLOGY
5 Microhabitat conditions drive uncertainty of risk and shape neophobic responses in Trinidadian guppies, Poecilia reticulata Feyten LEA; Ramnarine IW; Brown GE; 37753307
BIOLOGY
6 Assessing effects of predator density and diversity on neophobia in Trinidadian guppies Feyten LEA; Demers EEM; Ramnarine IW; Brown GE; 35907447
BIOLOGY
7 Exploratory decisions of Trinidadian guppies when uncertain about predation risk Crane AL; Demers EE; Feyten LEA; Ramnarine IW; Brown GE; 34741669
BIOLOGY
8 Exploring the threat-sensitive predator avoidance hypothesis on mate competition in two wild populations of Trinidadian guppies. Chuard PJC, Grant JWA, Ramnarine IW, Brown GE 32860863
BIOLOGY
9 The propensity for re-triggered predation fear in a prey fish. Crane AL, Feyten LEA, Ramnarine IW, Brown GE 32518253
BIOLOGY
10 Sender and receiver experience alters the response of fish to disturbance cues. Goldman JA, Feyten LEA, Ramnarine IW, Brown GE 32440286
BIOLOGY
11 High-risk environments promote chemical disturbance signalling among socially familiar Trinidadian guppies. Crane AL, Feyten LEA, Ramnarine IW, Brown GE 32296954
BIOLOGY
12 Predation risk assessment based on uncertain information: interacting effects of known and unknown cues. Feyten LEA, Demers EEM, Ramnarine IW, Brown GE 30697241
BIOLOGY

 

Title:Contextual use of male-male social information by Trinidadian guppies
Authors:Brusseau AJPDumaresq-Synnott FMorris JNagl ACRamnarine IWCrane ALBrown GE
Link:https://pubmed.ncbi.nlm.nih.gov/41460359/
DOI:10.1007/s10071-025-02027-z
Publication:Animal cognition
Keywords:Antipredator behavioursInspectionMating opportunitiesPredation riskSex differences
PMID:41460359 Category: Date Added:2025-12-29
Dept Affiliation: BIOLOGY
1 Department of Biology, Concordia University, 7141 Sherbrooke St. West, Montreal, QC, H4B 1R6, Canada.
2 Department of Biology, Missouri State University, 901 South National Ave., Springfield, MO, 65897, USA.
3 Department of Life Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago.
4 School of Mathematical and Natural Sciences, University of Arkansas at Monticello, 346 University Dr., Monticello, AR, 71656, USA.
5 Department of Biology, Concordia University, 7141 Sherbrooke St. West, Montreal, QC, H4B 1R6, Canada. grant.brown@concordia.ca.

Description:

Decision-making among prey often involves balancing fitness-related activities, such as foraging and mating, with the need to avoid predation. These trade-offs may be influenced by sex, especially among sexually dimorphic species where males and females face different selection pressures. Consistent with the 'Distracted Male Hypothesis', male Trinidadian guppies (Poecilia reticulata), may show a reduced response to publicly available personal risk assessment cues (i.e. chemosensory predation risk cues) relative to females due to the relatively high costs associated with lost courtship and mating opportunities. Male guppies may compensate for a reduced response to personal information by increasing their use of conspecifics as a source of social information. Here, we tested this hypothesis using wild-caught male Trinidadian guppies, examining their use of visual social cues from alarmed conspecific males in the presence vs. absence of females. We found that when stimulus females were absent, focal males increased their inspection of an alarmed male stimulus shoal, suggesting the use of social information. However, when a stimulus female was present, males did not increase inspection of the male stimulus shoal. Rather, they exhibited high rates of inspection towards the female stimulus. These suggest that male guppies may adjust their antipredator behaviour depending on social context, likely reflecting underlying reproductive trade-offs.





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