Roth et al., (1994) Costa Rican ant diversity data
A data.frame with 82 rows (species) and 5 columns (covertypes):
Ant species (family)
Primary forest type
Abandoned cacao plantations type
Active cacao plantations type
Active banana plantations type
http://www.tiem.utk.edu/~gross/bioed/bealsmodules/shannonDI.html
Roth, D. S., I. Perfecto, and B. Rathcke (1994) The effects of management systems on ground-foraging ant diversity in Costa Rica. Ecological Applications 4(3):423-436.