• Rhodes J
  • Mcalpine C
  • Lunney D
 et al. 
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Understanding habitat selection is of primary interest in theoretical and ap-plied ecology. One approach is to infer habitat selection processes from differences in population densities between habitats using methods such as isodar and isoleg analysis. Another approach is to directly observe the movements of individuals. However, habitat selection models based on movement data often fail to adequately incorporate spatial pro-cesses. This is problematic if the probability of selecting a particular habitat is dependent upon its spatial context. This would occur, for example, where organisms exhibit home range behavior and the choice of habitat is dependent on its location relative to the home range. In this paper we present a spatially explicit habitat selection model for movement data that incorporates home range behavior as a spatial process. Our approach extends a previous model by formulating the probability of selecting a habitat as a function of its distance from the animal's current location and home range center. We demonstrate that these enhancements lead to more parsimonious models when applied to a koala radio-tracking data set from eastern Australia. This approach could also be applied to modeling other spatial habitat selection processes, leading to more biologically meaningful models for a range of species and applications.

Author-supplied keywords

  • Phascolarctos cinereus
  • eastern Australia
  • habitat availability
  • habitat selection
  • home range
  • koala
  • move-ment
  • radio-tracking
  • spatial processes
  • spatially explicit model

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  • Jonathan R Rhodes

  • Clive A Mcalpine

  • Daniel Lunney

  • Hugh P Possingham

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