Since 2011, environmental flows (managed freshwater flows in natural water systems, designed to maintain aquatic ecosystems) have contributed to the ecological resilience of the Murray–Darling Basin. Improvements have been seen in the condition of native vegetation communities in the wetlands, recruitment of waterbirds and fish to waterways, increased resilience of golden perch and silver perch populations, maintenance of aquatic habitat and support for ecological recovery. Recovery in ecological resilience could be because of a range of factors, including floods in 2011–12, above average rainfall and increases in environmental flows.
The mid-term review for stage 3 of the Great Artesian Basin Sustainability Initiative (SKM 2013) reported anecdotal evidence of increasing bore pressure and increasing flow from bore springs. Similarly, a recent water resource assessment for the Great Artesian Basin (Smerdon et al. 2012) indicated that, from 1990 to 2010, bore-capping and water-piping activities resulted in the recovery of groundwater levels.