Perennial and annual grass densities and cover (more so) have fluctuated with rainfall since 1993 buthave generally increased. Low mean density and cover values have eventuated in years with lowsummer rainfall.Flooding also plays a role in determining pasture condition. Some perennial grassspecies have the ability to form butts and appear to be capable of regrowth from apparently moribundbutts after flooding. Areas that have experienced flooded conditions have shown increases in perennialand annual grass density and cover. This study has demonstrated that grass cover is mainly determinedby rainfall.
Anderson, L., van Klinken, R. D., and Shepherd, D. (2008). Aerially surveying Mesquite (Prosopis spp.) in the Pilbara. In: 'A Climate of Change in the Rangelands. Proceedings of the 15th Australian Rangeland Society Biennial Conference'. (Ed. D. Orr) 4 pages. (Australian Rangeland Society: Australia).
Full-text publications from the Australian Rangelands Society (ARS) Biennial Conference Proceedings (1997-), Rangeland Journal (ARS/CSIRO; 1976-), plus videos and other resources about the rangelands of Australia.