title: Individual Movement Strategies Revealed through Novel Clustering of Emergent Movement Patterns.
abstract: Understanding movement is critical in several disciplines but analysis methods often neglect key information by adopting each location as sampling unit, rather than each individual. We introduce a novel statistical method that, by focusing on individuals, enables better identification of temporal dynamics of connectivity, traits of individuals that explain emergent movement patterns, and sites that play a critical role in connecting subpopulations. We apply this method to two examples that span movement networks that vary considerably in size and questions: movements of an endangered raptor, the snail kite (Rostrhamus sociabilis plumbeus), and human movement in Florida inferred from Twitter. For snail kites, our method reveals substantial differences in movement strategies for different bird cohorts and temporal changes in connectivity driven by the invasion of an exotic food resource, illustrating the challenge of identifying critical connectivity sites for conservation in the presence of global change. For human movement, our method is able to reliably determine the origin of Florida visitors and identify distinct movement patterns within Florida for visitors from different places, providing near real-time information on the spatial and temporal patterns of tourists. These results emphasize the need to integrate individual variation to generate new insights when modeling movement data.
authors.affiliation: School of Forest Resources and Conservation, University of Florida, Gainesville, Florida, United States of America.
authors.forename: Denis
authors.initials: D
authors.lastname: Valle
authors.affiliation: School of Forest Resources and Conservation, University of Florida, Gainesville, Florida, United States of America.
authors.forename: Sreten
authors.initials: S
authors.lastname: Cvetojevic
authors.affiliation: Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, Florida, United States of America.
authors.forename: Ellen P
authors.initials: EP
authors.lastname: Robertson
authors.affiliation: U.S. Geological Survey, Fort Collins Science Center, Fort Collins, CO, USA.
authors.forename: Brian E
authors.initials: BE
authors.lastname: Reichert
authors.affiliation: School of Forest Resources and Conservation, University of Florida, Gainesville, Florida, United States of America.
authors.forename: Hartwig H
authors.initials: HH
authors.lastname: Hochmair
authors.affiliation: Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, Florida, United States of America.
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Fletcher
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D016000:Cluster Analysis; D003198:Computer Simulation; D046093:Falconiformes; D006801:Humans; D008962:Models, Theoretical; D009068:Movement; D011597:Psychomotor Performance