Impacts of predation risk on learning and memory of free-living mice
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In predator-prey interactions, responses to predation risk typically involve behavioural, morphological, or physiological changes. Laboratory-based studies have also shown changes in prey cognition (i.e., learning and memory), with individuals often showing impairment. However, an ecological perspective predicts that wild animals should conserve their cognitive ability, given that many risk responses require robust cognition. Here, we simulated predation risk and used a field-adapted version of the Morris Water Maze (MWM), to investigate how chronic predation risk affects cognition in wild white-footed mice. We found that 24d exposure to predation risk did not impair learning. However, those exposed to risk had a 25% reduction of short-term memory. Twelve days post risk exposure, we found no performance differences between risk-exposed and control mice. Additionally, risk-exposed mice displayed greater exploration with a higher probability of completing the MWM in their initial trial. G..., , , # **Impacts of predation risk on learning and memory of free-living mice**
Data for free-living white-footed mice (*Peromyscus leucopus*) under chronic predation risk simulation. This project was conducted in the Southeastern Massachusetts Bioreserve, USA. We used auditory playbacks to simulate predation risk (or no sound for controls) and a field-version of the Morris Water Maze (MWM) test to investigate how predation risk affects cognition (i.e., learning and memory) in free-living mice. Auditory playbacks were broadcast for 3 weeks, in a 4-day-on 4-day-off schedule. All methods in this study were approved by our Universities IACUC (IACUC 22-02) and followed guidelines of the American Mammalogy Society.
Contact Carolina Ganci ([cganci@umassd.edu](mailto:cganci@umassd.edu)) with any questions. This manuscript has been accepted for publication (01/03/2025) at Proceedings of Royal Society B.
Ganci CC, McKay L, Hunninck L, Sheriff MJ. Impacts of predation risk on learning and memory of...
创建时间：
2025-01-29
