Vegetatio

, Volume 69, Issue 1, pp 141–146

Gophers and grassland: a model of vegetation response to patchy soil disturbance

  • R. J. Hobbs
  • V. J. Hobbs
Article

DOI: 10.1007/BF00038695

Cite this article as:
Hobbs, R.J. & Hobbs, V.J. Vegetatio (1987) 69: 141. doi:10.1007/BF00038695

Abstract

We present a computer model which simulates population processes and spatial patterning in response to gopher disturbance in an annual grassland community. The model includes the processes of seed production, dispersal, germination and seedling survival of four main grassland species. Runs show that soil disturbance by gophers affects both short-term spatial patterning and long-term species composition. The main determinant of species behaviour is their relative seed dispersal distances, and the model is relatively insensitive to initial species distribution or abundances. The model adequately simulated short-term community patterning, and provided predictions of long-term dynamics which can now be tested using longer-term field experiments.

Keywords

Dispersal Gopher disturbance Process model Spatial patterning 

Copyright information

© Dr W. Junk Publishers 1987

Authors and Affiliations

  • R. J. Hobbs
    • 1
  • V. J. Hobbs
    • 1
  1. 1.Division of Wildlife & Rangelands Research, LMB 4CSIROMidlandAustralia

Personalised recommendations