1. Rangeland ecosystem services: nature’s supply and humans’ demand;Sala,2017
2. A site-based approach to delivering rangeland ecosystem services;Brown;The Rangeland Journal,2011
3. Monitoring manual for grassland, shrubland and savanna ecosystems;Herrick,2005
4. Sampling vegetation attributes: interagency technical reference;Coulloudon,1999
5. Monitoring plant and animal populations: a handbook for field biologists;Elzinga,2009