The present dissertation postulates the dead body as a cultural signifier in which it is possible to read social, political, ethical, and aesthetic meanings and practices during the first half of twentieth century Latin America. Drawing from a close examination…

The actual knowledge about the freshwater algae of Mexico is very uneven from various points of view, despite its recognized potential as indicators of environmental conditions and to be the basal part of trophic chains in aquatic environments. The largest…

14 species were determined. The knowledge of this genus in the states of Chihuahua, Distrito Federal, Estado de Mexico, Guanajuato, Guerrero, Michoacán, Nayarit, Oaxaca, Querétaro and Tlaxcala is widened. A sinoptical key is provided for the species cited from Mexico,…

The aim of this paper is to determine the chronology of the information on papilionid and pierid butterflies of Mexico, as well as the patterns of collection and who were the most active collectors freom a curatorial databases and bibliography.…

Knowledge of the population dynamics of tropical trees has expanded considerably in the past 20 years. An important observation deriving from these investigations is the confirmation that population behaviour varies both in time and space. A tool recently developed to…