Surveys of a study area at Smokers Gap, ACT, determined the extent of vegetation changes and damage caused by feral pig disturbances. Exclosures were erected in three areas, over recent, middle-aged and old disturbances, and positioned so that half the ground enclosed was disturbed and half undisturbed. Random quadrat sampling was carried out, and temporal changes in vegetation were defined.
Areas most susceptible to damage were found to be along drainage lines, in depressions, and around the flats. Approximately 32% of susceptible land had been disturbed, 5% having been damaged between April-October, 1980. Revegetation is slow, and future redisturbances are possible. Unless the present pig population is reduced, the area of susceptible land that has been disturbed is likely to increase. The dominant, grassy vegetation and some smaller, native herbs were greatly reduced in disturbed sites.
|Author||Alexiou, P. N.|
|Secondary title||Proceedings of the Ecological Society of Australia|