Propiedad intelectual en organismos vivos. Situación actual, tendencias y desafíos

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Caracterización del proceso de creación de estadísticas armonizadas sobre TIC en los organismos nacionales de estadística. Análisis de los resultados de la encuesta aplicada a los organismos nacionales de estadística de los países de América Latina y el Caribe

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Orientación del financiamiento de organismos internacionales a provincias

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Organismos genéticamente modificados: su impacto socioeconómico en la agricultura de los países de la Comunidad Andina, MERCOSUR y Chile

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Informe del Cuarto Taller de Taller de Gerentes de Organismos de Cuenca en América Latina y el Caribe

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Avances en la implementación de indicadores de desempeño en los organismos públicos del Perú

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Focando na variação: Métodos e aplicações do conceito de diversidade beta em ecossistemas aquáticos

Ecologists usually estimate means, but devote much less attention to variation. The study of variation is a key aspect to understand natural systems and to make predictions regarding them. In community ecology, most studies focus on local species diversity (alpha diversity), but only in recent decades have ecologists devoted proper attention to variation in community composition among sites (beta diversity). This is in spite of the fact that the first attempts to estimate beta diversity date back to the pioneering work by Koch and Whittaker in the 1950s. Progress in the last decade has been made in the development both of methods and of hypotheses about the origin and maintenance of variation in community composition. For instance, methods are available to partition total diversity in a region (gamma diversity), in a local component (alpha), and several beta diversities, each corresponding to one scale in a hierarchy. The popularization of the so-called raw-data approach (based on partial constrained ordination techniques) and the distance-based approach (based on correlation of dissimilarity/distance matrices) have allowed many ecologists to address current hypotheses about beta diversity patterns. Overall, these hypotheses are based on niche and neutral theory, accounting for the relative roles of environmental and spatial processes (or a combination of them) in shaping metacommunities. Recent studies have addressed these issues on a variety of spatial and temporal scales, habitats and taxonomic groups. Moreover, life history and functional traits of species such as dispersal abilities and rarity have begun to be considered in studies of beta diversity. In this article we briefly review some of these new tools and approaches developed in recent years, and illustrate them by using case studies in aquatic ecosystems.

Agendas de competitividad por agrocadenas: la experiencia de los organismos interprofesionales en Francia

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Primera Reunion Tecnica de Intercambio entre Organismos Gubernamentales Responsables de las Politicas de Poblacion en America Latina; aspectos generales

Este documento describe los objetivos especificos, el material de trabajo y la agenda provisoria de la Primera Reunion Tecnica de Intercambio entre Organismos Gubernamentales Responsables de las Politicas de Poblacion en America Latina, a efectuarse en Costa Rica en Noviembre de 1976

Macroinvertebrados aquáticos associados à Eichhornia azurea (Swartz) Kunth e suas relações com as variáveis abióticas em ecossistemas lênticos marginais (São Paulo, Brasil)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Las reformas de las pensiones en América Latina y la posición de los organismos internacionales

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