Figure 1
From: Zero-tolerance biosecurity protects high-conservation-value island nature reserve

Percentage of border and post-border detections from September 2009 to September 2015 in different categories. (A) type of organism (e.g. seed) detected; (B) classification of detections; (C) detections attributed to pathways (detections that could not be attributed to a pathway were removed); (D) post-border detections attributed to pathways; and (E) organisms identified in post-border detections. Pie chart segments <5% not labelled. For definitions of biosecurity system categories see main text and Supplementary Methods. Indeterminate refers to those specimens that could not be classified as either indigenous or non-indigenous.