This study showed that fire-adapted shrublands are vulnerable to changes in fire regime, leading to loss of native diversity and setting the community on a trajectory towards type conversion from a woody to an herbaceous system.
2012 USGS Brief. Keeley, J.E., T.J. Brennan. 2012. Fire-driven alien invasion in a fire-adapted ecosystem. Oecologia 169(4): 1043-1052. doi: 10.1007/s00442-012-2283-8.