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- W2592950987 abstract "How organisms gather and utilize information about their landscapes is central to understanding land-use patterns and population distributions. When such information originates beyond an individual’s immediate vicinity, movement decisions require integrating information out to some perceptual range. Such nonlocal information, whether obtained visually, acoustically, or via chemosensation, provides a field of stimuli that guides movement. Classically, however, models have assumed movement based on purely local information (e.g., chemotaxis, step-selection functions). Here we explore how foragers can exploit nonlocal information to improve their success in dynamic landscapes. Using a continuous time/continuous space model in which we vary both random (diffusive) movement and resource-following (advective) movement, we characterize the optimal perceptual ranges for foragers in dynamic landscapes. Nonlocal information can be highly beneficial, increasing the spatiotemporal concentration of foragers on their resources up to twofold compared with movement based on purely local information. However, nonlocal information is most useful when foragers possess both high advective movement (allowing them to react to transient resources) and low diffusive movement (preventing them from drifting away from resource peaks). Nonlocal information is particularly beneficial in landscapes with sharp (rather than gradual) patch edges and in landscapes with highly transient resources." @default.
- W2592950987 created "2017-03-16" @default.
- W2592950987 creator A5008367088 @default.
- W2592950987 creator A5052199951 @default.
- W2592950987 creator A5052271280 @default.
- W2592950987 creator A5058151904 @default.
- W2592950987 creator A5065107609 @default.
- W2592950987 creator A5084875071 @default.
- W2592950987 date "2017-05-01" @default.
- W2592950987 modified "2023-10-09" @default.
- W2592950987 title "Perceptual Ranges, Information Gathering, and Foraging Success in Dynamic Landscapes" @default.
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