Colour classes in the maps have approximately equal numbers of non-zero grid cells. 10000 yds from the coast. Bivariate choropleth map of correlation between native species richness and introduced species richness.
Native richness is green axis, introduced species richness is blue axis.
Richness of DoC category A threatened species. Richness of DoC category B threatened species. Richness of DoC category C threatened species. Richness of DoC category D threatened species. Histogram of the range-size of 97 native bird species.