Professor Noble is one of Australia's most highly respected ecologists. His innovative modelling approaches, which seek to reduce the natural complexity of ecosystems while retaining biological realism, contribute to the ecologically sustainable management of natural and modified ecosystems perturbed by grazing, forestry, fire or global change. He is a leader in ensuring that the results of research are delivered to the wider community. He makes substantial contributions, both nationally and internationally, to the future research directions and policy implications of the science of global change.