There is considerable scientific interest in the conservation of plants and animals on small islands, partly because their assemblages of flora and fauna are often highly distinctive (through long isolation); and partly because they offer the prospect of eradication of introduced pests that are beyond practical control in mainland Australia or New Zealand.
Particularly noteworthy is the Island Arks initiative. Island Arks held a symposium in 2016 on Norfolk Island and its program with abstracts of the presentations is available here.
The website of the Local2030 Islands Network offers an introduction to work by many small islands elsewhere that face challenges similar to Norfolk. It is focused on achieving the UN’s Sustainable Development Goals. The virtual organisation Island Innovation also disseminates information about transitioning island societies to sustainability; and also offers a commercial consulting service.