Centro Cientifico de Rio Palenque (May 1975) Centro Cientifico de Rio Palenque (February 1976) Centro Cientifico de Rio Palenque (July 1976) The Ecological Register
Dichotomius batesi (scarab beetle): 3 samples
Standardised estimates are produced by subsampling and then extrapolating.
Raw richness may be higher when an abundance distribution is uneven.