Meynard C. N., Kaplan David, Leroy B. (2019). Detecting outliers in species distribution data : some caveats and clarifications on a virtual species study. Journal of Biogeography, 46 (9), p. 2141-2144. ISSN 0305-0270.
Titre du document
Detecting outliers in species distribution data : some caveats and clarifications on a virtual species study
Journal of Biogeography, 2019,
46 (9), p. 2141-2144 ISSN 0305-0270
Liu et al. (2018) used a virtual species approach to test the effects of outliers on species distribution models. In their simulations, they applied a threshold value over the simulated suitabilities to generate the species distributions, suggesting that using a probabilistic simulation approach would have been more complex and yield the same results. Here, we argue that using a probabilistic approach is not necessarily more complex and may significantly change results. Although the threshold approach may be justified under limited circumstances, the probabilistic approach has multiple advantages. First, it is in line with ecological theory, which largely assumes non-threshold responses. Second, it is more general, as it includes the threshold as a limiting case. Third, it allows a better separation of the relevant intervening factors that influence model performance. Therefore, we argue that the probabilistic simulation approach should be used as a general standard in virtual species studies.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020]
;
Sciences du milieu [021]
