Recognizing the imperative to evaluate species recovery and conservation impact, in 2012 the International Union for Conservation of Nature (IUCN) called for development of a “Green List of Species” (now the IUCN Green Status of Species). A draft Green Status framework for assessing species’ progress toward recovery, published in 2018, proposed 2 separate but interlinked components: a standardized method (i.e., measurement aga...

From the climatologic data bases (SICLIM and CLICOM) built by the Servicio Meteorológico Nacional (SMN) of Mexico, we have defined two normals: one called Period I, from 1950 to 1975, and the other called Period II, from 1976 to 2000. The objective of the present work is to make an estimation of the annual volume of superficial available water in Periods I and II, and the changes between them, in two important hydrologic regio...