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The topics in this theme describe how the native species and ecosystems of NSW are faring presently and the effects of introduced species.


Threatened Species

The number of species considered at risk of extinction continues to rise.

Four legged native animal graphic

Number of threatened species


species are listed as threatened in NSW

Invasive Species

The NSW environment and community face significant challenges from invasive pests and weeds, and introduced pathogens.

Weeds spraying graphic

Weeds cost the NSW economy

$1.8 billion

each year in lost agricultural production and management costs

Native Fauna

The overall diversity and richness of native species and communities in NSW remains under threat of further decline.

Platypus graphic

Survival of vertebrate species


of terrestrial vertebrate species are not listed as being threatened