From post-fire vegetation to fragmented landscapes
Raised in Scotland, Hobbs completed his Aberdeen doctorate in 1982 on post-fire heathland dynamics. He then studied serpentine grasslands with Hal Mooney at Stanford before joining CSIRO in 1984 to work on fragmented ecosystems in the Western Australian wheatbelt.
References: [1]
Goals and environmental constraints
Hobbs moved to Murdoch University in 2000 and UWA in 2009, retiring in 2020. His research considers how landscape patterns, invasions and environmental conditions constrain restoration and how interventions can meet realistic goals with limited resources.
Why novel ecosystems matter
A 2013 paper he coauthored discussed human-induced biotic and abiotic changes that can make historical reference states difficult to recover. The authors proposed broadening restoration planning to include biodiversity and ecosystem functions, rather than treating all altered systems alike.
References: [2]
Change and restoration standards
The paper addressed concerns about lowering standards and acknowledged that irreversible thresholds are difficult to identify. It advocated context-specific judgments informed by ecological evidence, social constraints and history. This is a debated planning framework, not evidence that every degraded ecosystem should be left unrestored.
References: [2]