What does this research mean for the field?

Predator hunting modes exert divergent selection pressures on prey personality traits, with active predators disproportionately killing shyer, more active individuals and ambush predators killing less active individuals, which helps maintain behavioral variation in prey populations. Novelty: ClaimNovelty.CONTRADICTORY. Consensus alignment: ConsensusAlignment.CHALLENGES_CONSENSUS.

What question did this study set out to answer?

To evaluate whether life-history trade-offs or divergent selection from varied predator hunting strategies maintain behavioral trait variation in wild prey populations.

August 27, 2026Behavioral EcologyOpen Access

Predator hunting modes induce varied selection pressures on prey personality

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Authors

RMRebecca K. McKee SMStorm Miller CKCarl N. Keiser

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Overview

Field survival study reveals predator hunting modes exert opposing selection on prey behavioral traits in wild rodents, suggesting multiple predator types maintain personality diversity.

Key Points

To evaluate whether life-history trade-offs or divergent selection from varied predator hunting strategies maintain behavioral trait variation in wild prey populations.
Assayed boldness, activity, and docility in field-captured hispid cotton rats (Sigmodon hispidus) before releasing them back into their native Everglades habitat.
Monitored rodent survival under natural predation pressure from ambush predators (snakes) and active predators (mammals and birds).
Evaluated predation risk across behavioral traits using Cox proportional hazards regression and competing risks survival models.
Predation risk was shaped by the hunting strategy of predators rather than a uniform cost to bold or active behaviors.
Shyer and more active rats experienced higher mortality from active predators, whereas less active rats faced greater predation risk from ambush predators.
Opposing selection pressures from multiple hunting modes provide empirical support for the maintenance of personality variation in natural prey populations.

Cite This Study

McKee et al. (2026) studied this question.

synapsesocial.com/papers/6a8fe9b910c91c1e92621a4c https://doi.org/10.1093/beheco/arag097

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August 27, 2026Behavioral EcologyOpen Access

Predator hunting modes induce varied selection pressures on prey personality

View Full Paper

Ask AI

Bookmark

Authors

RMRebecca K. McKee SMStorm Miller CKCarl N. Keiser

Discussion

Member takes

Overview

Field survival study reveals predator hunting modes exert opposing selection on prey behavioral traits in wild rodents, suggesting multiple predator types maintain personality diversity.

Key Points

To evaluate whether life-history trade-offs or divergent selection from varied predator hunting strategies maintain behavioral trait variation in wild prey populations.
Assayed boldness, activity, and docility in field-captured hispid cotton rats (Sigmodon hispidus) before releasing them back into their native Everglades habitat.
Monitored rodent survival under natural predation pressure from ambush predators (snakes) and active predators (mammals and birds).
Evaluated predation risk across behavioral traits using Cox proportional hazards regression and competing risks survival models.
Predation risk was shaped by the hunting strategy of predators rather than a uniform cost to bold or active behaviors.
Shyer and more active rats experienced higher mortality from active predators, whereas less active rats faced greater predation risk from ambush predators.
Opposing selection pressures from multiple hunting modes provide empirical support for the maintenance of personality variation in natural prey populations.

Cite This Study

McKee et al. (2026) studied this question.

synapsesocial.com/papers/6a8fe9b910c91c1e92621a4c https://doi.org/10.1093/beheco/arag097

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