Supporting Online Material for Lévy Walks Evolve Through Interaction Between Movement and Environmental Complexity

Response to Comment on “Lévy Walks Evolve Through Interaction Between Movement and Environmental Complexity”

University of Groningen Levy walks evolve through interaction between movement and environmental complexity de Jager,

Lévy walks evolve through interaction between movement and environmental complexity.

Ecological theory predicts that animal movement is shaped by its efficiency of resource acquisition. Focusing solely on efficiency, however, ignores the fact that animal activity can affect resource availability and distribution. Here, we show that feedback between individual behavior and environmental complexity can explain movement strategies in mussels. Specifically, experiments show that mu...

Comment on "Lévy walks evolve through interaction between movement and environmental complexity".

de Jager et al. (Reports, 24 June 2011, p. 1551) concluded that mussels Lévy walk. We confronted a larger model set with these data and found that mussels do not Lévy walk: Their movement is best described by a composite Brownian walk. This shows how model selection based on an impoverished set of candidate models can lead to incorrect inferences.

An Investigation into the Effects of Joint Planning on Complexity, Accuracy, and Fluency across Task Complexity

The current study aimed to examine the effects of strategic planning, online planning, strategic planning and online planning combined (joint planning), and no planning on the complexity, accuracy, and fluency of oral productions in two simple and complex narrative tasks. Eighty advanced EFL learners performed one simple narrative task and a complex narrative task with 20 minutes in between. Th...