RT Journal Article
SR Electronic
T1 Reflected Stochastic Differential Equation Models for Constrained Animal Movement
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 152017
DO 10.1101/152017
A1 Hanks, Ephraim M.
A1 Johnson, Devin S.
A1 Hooten, Mevin B.
YR 2017
UL http://biorxiv.org/content/early/2017/06/19/152017.abstract
AB Movement for many animal species is constrained in space by barriers such as rivers, shore-lines, or impassable cliffs. We develop an approach for modeling animal movement constrained in space by considering a class of constrained stochastic processes, reflected stochastic differential equations. Our approach generalizes existing methods for modeling unconstrained animal movement. We present methods for simulation and inference based on augmenting the constrained movement path with a latent unconstrained path and illustrate this augmentation with a simulation example and an analysis of telemetry data from a Steller sea lion (Eumatopias jubatus) in southeast Alaska.