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Conservation assessments - GIS tools 

Sampled Red list Index New

Red Lists are widely used to indicate species at risk of extinction. Presented here are GIS tools that integrate with specimen data, to firstly produce preliminary conservation assessments and to help any assessors support their assessments. 

These tools are to be used with specimen data or sighting data in latitude and longitude and have been primarily designed to work with herbaria data which provides an important source of data relevant for Red List assessments. 

The tools below follow the IUCN red listing guidelines, and produce data for Area of Occupancy, Extent of Occurrence, number of sub-populations, number of locations and indicators of fragmentation. 

Rapoport's mean propinquity (or minimum spanning tree)

 

The CATS extension can now be linked directly to data stored in BRAHMS databases (Botanical Research And Herbarium Management System). For users of BRAHMS, the improved mapping function enables botanical data with coordinates to be linked to ArcView projects set up with CATS. Conservation assessment results can then be imported straight back into BRAHMS projects, linking to taxon information. A short guide describing the process can be downloaded here.

For more details see:

Willis, F., J. Moat, Paton, A. 2003. "Defining a role for herbarium data in Red List assessments: a case study of Plectranthus from eastern and southern tropical." Biodiversity and Conservation 12(7): 1537-1552. Abstract and Full Paper

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