title: Territoriality and home-range dynamics in meerkats, Suricata suricatta: a mechanistic modelling approach.
abstract: Multiple approaches exist to model patterns of space use across species, among them resource selection analysis, statistical home-range modelling and mechanistic movement modelling. Mechanistic home-range models combine the benefits of these approaches, describing emergent territorial patterns based on fine-scale individual- or group-movement rules and incorporating interactions with neighbours and the environment. These models have not, to date, been extended to dynamic contexts. Using mechanistic home-range models, we explore meerkat (Suricata suricatta) territorial patterns, considering scent marking, direct group interactions and habitat selection. We also extend the models to accommodate dynamic aspects of meerkat territoriality (territory development and territory shift). We fit models, representing multiple working hypotheses, to data from a long-term meerkat study in South Africa, and we compare models using Akaike's and Bayesian Information Criteria. Our results identify important features of meerkat territorial patterns. Notably, larger groups do not seem to control larger territories, and groups apparently prefer dune edges along a dry river bed. Our model extensions capture instances in which 1) a newly formed group interacts more strongly with its parent groups over time and 2) a group moves its territory core out of aversive habitat. This extends our mechanistic modelling framework in previously unexplored directions.
authors.affiliation: Department of Zoology, University of Cambridge, Downing Street, Cambridge, CB2 3EJ, UK.|Department of Mathematical and Statistical Sciences, Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2G1, Canada.|Kalahari Meerkat Project, Kuruman River Reserve, Northern Cape, South Africa.
authors.forename: Andrew W
authors.initials: AW
authors.lastname: Bateman
authors.affiliation: Department of Mathematical and Statistical Sciences, Department of Biological Sciences, University of Alberta, Edmonton, AB, T6G 2G1, Canada.
authors.forename: Mark A
authors.initials: MA
authors.lastname: Lewis
authors.affiliation: Kalahari Meerkat Project, Kuruman River Reserve, Northern Cape, South Africa.|Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
authors.forename: Gabriella
authors.initials: G
authors.lastname: Gall
authors.affiliation: Kalahari Meerkat Project, Kuruman River Reserve, Northern Cape, South Africa.|Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, CH-8057, Zurich, Switzerland.
authors.forename: Marta B
authors.initials: MB
authors.lastname: Manser
authors.affiliation: Department of Zoology, University of Cambridge, Downing Street, Cambridge, CB2 3EJ, UK.|Kalahari Meerkat Project, Kuruman River Reserve, Northern Cape, South Africa.
authors.forename: Tim H
authors.initials: TH
authors.lastname: Clutton-Brock
mesh_terms: D063147:Animal Distribution; D000818:Animals; D017753:Ecosystem; D005260:Female; D008988:Herpestidae / Q000502:physiology*; D006702:Homing Behavior; D008297:Male; D008954:Models, Biological; D011157:Population Dynamics; D013019:South Africa; D013731:Territoriality
keywords: advection‐diffusion models; habitat selection; partial differential equations; social carnivores; space use; spatial patterns