Desarrollo endógeno sustentable: camino para re-actualizar el "Vivir Bien" en el contexto de la revolución democrática y cultural de Bolivia

Un conjuto de autores Bolivianos y Latinoamericanos reflexionan acerca de los alcances del paradigma del Vivir Bien y sus posibilidades para constituirse en el soporte ético que ilumine un nuevo paradigma de producción y reproducción de la realidad social. Los autores exploran sus dimensiones semánticas y filosóficas, así como los horizones utópicos que propone este paradigma. También hacen un análisis de los patrones de desarrollo en cursos, y cómo se viene aplicando en Bolivia este paradigma. Esta publicación es promovida por el Postgrado en Ciencias del Desarrollo de la Universidad Mayor de San Andrés (cides-umsa) y el Departamento de Economía de la Universidad de Roma “ La Sapienza ”, en el marco de un Convenio de Colaboración académica entre ambas Universidades.

Patterns of the Remnant Cichlid Fauna in Southern Lake Victoria. Patrones de la Fauna de Ciclidos Remanentes en el Sur del Lago Victoria

During the years 1984–1987 Lake Victoria in East Africa experienced what is probably the largest mass extinction of contemporary vertebrates. Within a decade about 200 endemic species of haplochromine cichlids disappeared. The extinctions that occurred in the 1980s have been documented predominantly on species of offshore and sub-littoral waters in the Mwanza Gulf of southern Lake Victoria. Although the littoral fauna of southern Lake Victoria had not been examined in detail, their diversity seemed less affected by the changes in the ecosystem. We give results of the first comprehensive inventory of the littoral cichlid fauna in southern Lake Victoria and discuss its conservation status. We also report on new developments in the sub-littoral fauna after 1990. More than 50 littoral and 15 sub-littoral stations were sampled between the years 1991 to 1995. Of the littoral stations, 34 were sampled for the first time. One hundred sixty three species of haplochromines were collected. Of these, 102 species were previously unknown. About two thirds of them live in rocky areas that were sampled for the first time. Littoral rocky habitats harbored the highest diversity. Since 1990, however, 13 more species disappeared from established sampling stations in littoral habitats. Fishing practices, spreading of exotic fishes, water hyacinth, and eutrophication are considered important threats to the littoral fauna. Also in the upper sub-littoral the number of species declined further. On deeper sub-littoral mud bottoms individual and species numbers increased again, although they are nowhere close to those found before the Nile perch (Lates niloticus) upsurge. This fauna differs from the well studied pre-Nile perch fauna. At well-established sampling stations, the sub-littoral zone is dominated by previously unknown species, and some known species have performed dramatic habitat shifts.