Evidence for encounter-conditional, area-restricted search in a preliminary study of Colombian blowgun hunters.

ABSTRACT: Active search for prey is energetically costly, so understanding how foragers optimize search has been central to foraging theory. Some theoretical work has suggested that foragers of randomly distributed prey should search using Lévy flights, while work on area-restricted and intermittent search strategies has demonstrated that foragers can use the information provided by prey encounters to more effectively adapt search direction and velocity. Previous empirical comparisons of these search modes have tended to rely on distribution-level analyses, due to the difficulty of collecting event-level data on encounters linked to the GPS tracks of foragers. Here we use a preliminary event-level data-set (18.7 hours of encounter-annotated focal follows over 6 trips) to show that two Colombian blow

SUBMITTER: Ross CT 

PROVIDER: S-EPMC6291100 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature