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Before: Healthy tussock slopes with grazing moving downslope from plateau (pale tussock stumps, upper centre), February 2003. Slopes have never been grazed until this time.

After: Three years later - tussock destruction more than halfway down slope (straw-coloured stumps), increased erosion in gullies, March 2006. Note rapidity of damage.

Before: Slopes with healthy tussock and Macquarie Island cabbage, 1995. Slopes never grazed, apart from small brown patches near top which were grazed just prior to myxomatosis introduction in 1979. Myxo decimated rabbits and stopped grazing on this slope for the next 15-20 years.

After: Grazing started spreading down this slope in around 2000, resulting in destruction of cabbage and tussock as well as gully and sheet erosion by March 2006.