Resumo

PAZ PELLAT, Fernando et al. Projective foliar cover and species richness of vascular plants in the State of Mexico. Rev. mex. de cienc. forestales [online]. 2023, vol.14, n.76, pp.93-119.  Epub 19-Jun-2023. ISSN 2007-1132.  https://doi.org/10.29298/rmcf.v14i76.1298.

The relationship between vegetation productivity/production and vascular plant species richness is important in order to analyze the response of the vegetation to disturbances, which has been addressed by using different approaches and theoretical frameworks, although with insufficient results to explain the observed variability. Specht and collaborators propose non-linear relationships between projective foliar cover (PFC) and species richness (S) under equilibrium conditions and plant succession. In order to analyze the PFC-S relationships, sampling was carried out in different vegetation types in the eight forest regions defined by Probosque in the State of Mexico, in which 682 sampling plots of 1 000 m2 each were established. The relationships established between PFC with respect to S, in the case of maximum values of S, exhibited patterns that are consistent with the empirical approaches of Specht and collaborators, particularly, as a function of the stages of forest/forest succession. In addition, the ratios were established for shrublands and grasslands. The results of the analyses showed potential relationships between S and the PFC of the upper and lower stratum, in which their parameters are related to each other, simplifying the estimation process to a single parameter.

Palavras-chave : Vegetal diversity; Specht’s equilibrium; potential models; parameter relationships; maximum richness; forest succession.

        · resumo em Espanhol     · texto em Espanhol | Inglês     · Inglês ( pdf ) | Espanhol ( pdf )