Saving Species
To assess and report changes in the status and distribution of wildlife species, WCS measures occupancy – the presence or absence of a species within a landscape or seascape or across its geographic range. Monitoring species’ area of occupancy is the most cost-effective and most easily interpreted approach for tracking population trends in both terrestrial and marine species. WCS research shows a positive relationship between area of occupancy and abundance, and that conservation actions can positively influence area of occupancy. Advantages of applying occupancy methods are that they: 1) are scientifically defensible; 2) generate easily visualized and interpreted results; and 3) are methodologically agnostic, that is, with careful design, occupancy data can be generated from a broad range of data collection methods.