()īehaviour, diel activity, foraging, predation risk, predator-prey, time of predation Our findings suggest that predator-prey diel activity overlap may not always be a good proxy of predation risk, and highlight a need for examining the link between predation and spatiotemporal behavior of predator and prey to improve our understanding of how predator-prey behavioral interactions drive predation risk. We also found that activity rates of hares were not related to the chance of predation at daily and weekly scales, whereas lynx activity rates positively affected the diel pattern of lynx predation on hares and their weekly kill rates of hares. Surprisingly, we found that lynx kills of hares were as likely to occur during the day when hares were inactive as at night when hares were active. Here, we used accelerometry data on snowshoe hares ( Lepus americanus) and Canada lynx ( Lynx canadensis) to determine activity patterns of prey and predators and match these to precise timing of predation. However, the simultaneous measures of prey and predator activity along with timing of predation required to test this assumption have not been available.

The assumption that activity and foraging are risky for prey underlies many predator-prey theories and has led to the use of predator-prey activity overlap as a proxy of predation risk.

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