Threatened species conservation classes
Where the necessary Nature Conservation Act 1992 (NC Act) criteria have been met the Governor in Council may assign Queensland native wildlife (flora and fauna) threatened with extinction to one of the following classes:
Alternatively, species may be classed as near threatened if they are at risk of becoming threatened in the near future but don’t yet meet the criteria for threatened wildlife. All other native Queensland plant and vertebrate species (excluding fish) are classed as ‘least concern’.
- A species is classed as extinct if there is no reasonable doubt the last member of the species has died.
Extinct in the wild
A species is classed as extinct in the wild if:
- the wildlife is known only to survive in cultivation, in captivity or as a naturalised population well outside its past range; or
- it is not known to survive in its known or expected habitat, in its past range, over a period appropriate to the life cycle or form of the wildlife.
A species is classed as critically endangered if:
- the wildlife has undergone or is suspected to have undergone a very large reduction in numbers; or
- it is likely that a very large reduction in the wildlife’s numbers is imminent; or
- the wildlife’s geographic distribution is precarious for the survival of the wildlife and very restricted; or
- the estimated total number of mature individuals is very low and it is likely the number will continue to decline at a very high rate, or continue to decline, and its geographic distribution is precarious for the survival of the wildlife; or
- the estimated total number of mature individuals is extremely low; or
- the probability of the wildlife’s extinction in the wild is at least 50% in the immediate future.
A species is classed as endangered if:
- there have not been thorough searches conducted for the wildlife and the wildlife has not been seen in the wild over a period that is appropriate for the life cycle or form of the wildlife; or
- the habitat or distribution of the wildlife has been reduced to an extent that the wildlife may be in danger of extinction; or
- the population size of the wildlife has declined, or is likely to decline, to an extent that the wildlife may be in danger of extinction; or
- the survival of the wildlife in the wild is unlikely if a threatening process continues.
A species is classed as vulnerable if:
- its population is decreasing because of threatening processes, or
- its population has been seriously depleted and its protection is not secured, or
- its population, while abundant, is at risk because of threatening processes, or
- its population is low or localised or depends on limited habitat that is at risk because of threatening processes.