http://www.environment.gov.au/soe/2006/publications/drs/indicator/396/index.html

http://www.abs.gov.au/Ausstats/abs@.nsf/7d12b0f6763c78caca257061001cc588/31bd15113714d0fcca256e9e00295194!OpenDocument

http://www.environment.gov.au/soe/2006/publications/emerging/peoples-views/index.html

Extinction

http://www.abs.gov.au/AUSSTATS/abs@.nsf/Previousproducts/D45894223704D2B3CA257234002191F8?opendocument

http://www.abs.gov.au/AUSSTATS/abs@.nsf/Lookup/1383.0.55.001Main+Features192009