Risky times and risky places interact to affect prey behaviour

Risky prey behavior evolves in risky habitats.

Longstanding theory in behavioral ecology predicts that prey should evolve decreased foraging rates under high predation threat. However, an alternative perspective suggests that growth into a size refuge from gape-limited predation and the future benefits of large size can outweigh the initial survival costs of intense foraging. Here, I evaluate the relative contributions of selection from a g...

Is alarm calling risky? Marmots avoid calling from risky places.

Alarm calling is common in many species. A prevalent assumption is that calling puts the vocalizing individual at increased risk of predation. If calling is indeed costly, we need special explanations for its evolution and maintenance. In some, but not all species, callers vocalize away from safety and thus may be exposed to an increased risk of predation. However, for species that emit bouts w...

Health Interventions and Risky Behaviour

This paper reviews the extent to which policy interventions can affect risky behaviours such as smoking, drinking and diet. The justification for such intervention is typically a market failure, broadly defined. The types of market failure typically encountered are discussed. First and second best interventions are examined and there is a review of the efficacy of such interventions with respec...

P27: The Relationship between Risky Driving Behavior with Extroversion and Consciousness and Affect

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Report on Blood Drawing : Risky Procedures , Risky Devices , Risky Job