Temperature effects on ballistic prey capture by a dragonfly larva.

ABSTRACT: Understanding the effects of temperature on prey-predator interactions is a key issue to predict the response of natural communities to climate change. Higher temperatures are expected to induce an increase in predation rates. However, little is known on how temperature influences close-range encounter of prey-predator interactions, such as predator's attack velocities. Based on the speed-accuracy trade-off concept, we hypothesized that the increase in predator attack velocity by increasing temperature reduces the accuracy of the attack, leading to a lower probability of capture. We tested this hypothesis on the dragonfly larvae Anax imperator and the zooplankton prey Daphnia magna. The prey-predator encounters were video-recorded at high speed, and at three different tempera

SUBMITTER: Quenta Herrera E 

PROVIDER: S-EPMC5916278 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature