No Cover Image

Journal article 489 views 52 downloads

Dynamic Range Size Analysis of Territorial Animals: An Optimality Approach / Luca, Borger

The American Naturalist, Volume: 188, Issue: 4, Pages: 460 - 474

Swansea University Author: Luca, Borger

  • 688257VOR.pdf

    PDF | Version of Record

    Download (772.53KB)
  • Tao_etal_acceptedVersion.pdf

    PDF | Accepted Manuscript

    Journal prefers published version to be made available after 12mo embargo so have retracted this version and uploaded the other, SO

    Download (2.68MB)

Check full text

DOI (Published version): 10.1086/688257

Abstract

Home range sizes of territorial animals are often observed to vary periodically in response to sea-sonal changes in foraging opportunities. Here we develop the first mechanistic model focusedon the temporal dynamics of home range expansion and contraction in territorial animals. Wedemonstrate how si...

Full description

Published in: The American Naturalist
ISSN: 0003-0147 1537-5323
Published: 2016
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa28841
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: Home range sizes of territorial animals are often observed to vary periodically in response to sea-sonal changes in foraging opportunities. Here we develop the first mechanistic model focusedon the temporal dynamics of home range expansion and contraction in territorial animals. Wedemonstrate how simple movement principles can lead to a rich suite of range size dynamics, bybalancing foraging activity with defensive requirements and incorporating optimal behavioral rulesinto mechanistic home range analysis. Our heuristic model predicts three general temporal patternsthat have been observed in empirical studies across multiple taxa. First, a positive correlation be-tween age and territory quality promotes shrinking home ranges over an individual’s lifetime, withmaximal range size variability shortly before the adult stage. Second, poor sensory information,low population density, and large resource heterogeneity may all independently facilitate range sizeinstability. Finally, aggregation behavior towards forage-rich areas helps produce divergent homerange responses between individuals from different age classes. This model has broad applica-tions for addressing important unknowns in animal space use, with potential applications also inconservation and health management strategies.
Keywords: movement ecology, optimal behavior, home range, territoriality
College: College of Science
Issue: 4
Start Page: 460
End Page: 474