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1 December 2006 An Assessment of Sample-Based Estimators of Tree Species Richness in Two Wet Tropical Forest Compartments in Panama and India
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Abstract
We assessed the performance of ten incidence-based estimators of tree species richness in simulated simple random sampling with fixed-area plots. Stem diameter-limited tree species and location data came from two species-rich wet tropical forest compartments in Panama and India. Lower limits of stem diameter were 1 cm and 30 cm, respectively. Estimators varied widely in their estimates of richness and their rankings changed frequently across sites and sample designs. A gamma-Poisson estimator was overall best according to a performance score of three accuracy statistics and sample size. However, until corroborated by further studies, Chao's 1981 non-parametric estimator is recommended for forest inventories with fixed-area plots.
S. Magnussen, R. Pélissier, F. He and B.R. Ramesh "An Assessment of Sample-Based Estimators of Tree Species Richness in Two Wet Tropical Forest Compartments in Panama and India," International Forestry Review 8(4), (1 December 2006). https://doi.org/10.1505/ifor.8.4.417
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