Sustainable Development Goals 15
Three-quarters of the world’s land surface has been significantly altered by humans. The extent and condition of the world’s ecosystems have declined by an average of 47% compared with the natural baseline, and some are faring worse than others.
Decline in the extent and condition of the world’s ecosystems compared with the natural baseline
of the world’s wetlands are
estimated to have been lost between 1700 and 2000
Hectares of tropical forests, lost between 2010 and 2015
The current state of much of Aotearoa | New Zealand’s biodiversity demonstrates a trend of ongoing decline. The extent of this decline is variable within and between domains, ecosystems and species.
of species in
New Zealand are ranked as “critically endangered” by IUCN
land bird species whose conservation status has improved between 2008
hectares of private land protected through Queen Elizabeth II Trust covenants. 10,000 ha in 1990.
Most of the region’s terrestrial ecosystems have been significantly changed due to agriculture and urbanisation. Despite the magnitude of change reducing significantly in the last century, loss of key ecosystems, e.g. wetlands continues. Natural features such as gullies offer restoration opportunities.
of the region’s land remains in terrestrial indigenous vegetation cover
94% in 1840
of the Waikato’s non-forest swamps and bogs have been drained since 1840, leaving some 30,000 hectares.