Journal ArticleDOI
Caribou movement as a correlated random walk
Reads0
Chats0
TLDR
Investigation of long-distance movements of caribou using correlated random walk models and satellite telemetry indicates the applicability of CRW models to animal movement at vast spatial and temporal scales, thus assisting in future development of more sophisticated models of population spread and redistribution for vertebrates.Citations
More filters
Book
Spatial Analysis A Guide for Ecologists
TL;DR: In this paper, the authors present a spatial analysis of complete point location data, including points, lines, and graphs, and a multiscale analysis of the data set, including spatial diversity analysis and spatial autocorrelation.
Journal ArticleDOI
Animal search strategies: a quantitative random-walk analysis
Frederic Bartumeus,Frederic Bartumeus,M. G. E. da Luz,Gandhimohan. M. Viswanathan,Jordi Catalan +4 more
TL;DR: This work analyzes the statistical differences between two random-walk models commonly used to fit animal movement data, the Levy walks and the correlated random walks, and quantifies their efficiencies within a random search context.
Journal ArticleDOI
Non‐optimal animal movement in human‐altered landscapes
TL;DR: This synthesis synthesizes the understanding of the relationship between landscape structure and animal movement in human-modified landscapes and develops a hypothesis that predicts the relative importance of the different population-level consequences of these non-optimal movements.
Journal ArticleDOI
At-sea distribution and scale-dependent foraging behaviour of petrels and albatrosses: a comparative study.
David Pinaud,Henri Weimerskirch +1 more
TL;DR: This study demonstrates that predators of several species adjust their foraging behaviour to the heterogeneous environment and these scale-dependent movement adjustments depend on both forager and environment characteristics.
Journal ArticleDOI
How to reliably estimate the tortuosity of an animal's path:. straightness, sinuosity, or fractal dimension?
TL;DR: This paper shows that the efficiency of an oriented path can be reliably estimated by a straightness index computed as the ratio between the distance from the starting point to the goal and the path length travelled to reach the goal, and provides some help for distinguishing between oriented and random search paths.
References
More filters
Journal ArticleDOI
Random dispersal in theoretical populations.
TL;DR: In this paper, the authors used the random walk problem as a starting point for the analytical study of dispersal in living organisms and applied the law of diffusion to the understanding of the spatial distribution of population density in both linear and two-dimensional habitats.
Journal ArticleDOI
Biological Populations with Nonoverlapping Generations: Stable Points, Stable Cycles, and Chaos
TL;DR: This paper presents a dynamical regime in which (depending on the initial population value) cycles of any period, or even totally aperiodic but boundedpopulation fluctuations, can occur.
Book
Quantitative analysis of movement : measuring and modeling population redistribution in animals and plants
TL;DR: In this paper, the authors present a model for measuring movement modelling for movement building behaviorally based models analysis of movement paths, mass mark-recapture individual mark-reconstruction.