Počet záznamů: 1
Quantifying uncertainty in estimation of global arthropod species richness
0350962 - BC-A 2011 RIV US eng J - Článek v odborném periodiku
Hamilton, J. A. - Basset, Y. - Benke, K. K. - Grimbacher, P. S. - Miller, S. E. - Novotný, Vojtěch - Samuelson, G. A. - Stork, N. E. - Weiblen, G. D. - Yen, J. D. L.
Quantifying uncertainty in estimation of global arthropod species richness.
American Naturalist. Roč. 176, č. 1 (2010), s. 90-95 ISSN 0003-0147
Výzkumný záměr: CEZ:AV0Z50070508
Klíčová slova: Coleoptera * host specificity * Latin hypercube sampling
Kód oboru RIV: EH - Ekologie - společenstva
Impakt faktor: 4.736, rok: 2010
There is a bewildering range of estimates for the number of arthropods on Earth. Several measures are based on extrapolation from species specialized to tropical rain forest, each using specific assumptions and justifications. These approaches have not provided any sound measure of uncertainty associated with richness estimates. We present two models that account for parameter uncertainty by replacing point estimates with probability distributions. The models predict medians of 3.7 million and 2.5 million tropical arthropod species globally, with 90% confidence intervals of [2.0, 7.4] million and [1.1, 5.4] million, respectively. Estimates of 30 million or greater are predicted to have <0.00001 probability. Sensitivity analyses identified uncertainty in the proportion of canopy arthropod species that are beetles as the most influential parameter, although uncertainties associated with three other parameters were also important.
Trvalý link: http://hdl.handle.net/11104/0190818