Juventud y desarrollo rural: marco conceptual y contextual

Incluye Bibliografía

Desarrollo de infraestructura y crecimiento económico: revisión conceptual

Incluye Bibliografía

El capital social en cinco localidades rurales en Chile: marco conceptual y metodológico

Incluye Bibliografía

Vulnerabilidad y grupos vulnerables: un marco de referencia conceptual mirando a los jóvenes

Incluye Bibliografía

Acercamiento conceptual a la situación del adulto mayor en América Latina

Incluye Bibliografía

Relation between green spaces and bird community structure in an urban area in Southeast Brazil

Increased urbanization typically leads to an increase in abundance of a few species and a reduction in bird species richness. Understanding the structure of biotic communities in urban areas will allow us to propose management techniques and to decrease conflicts between wild species and human beings. The objective of this study was to describe the structure of the bird community in an urban ecosystem. The study was carried out in the city of Taubaté in southeastern Brazil. Point-counts were established in areas with different levels of tree density ranging from urban green spaces to predominantly built-up areas. We looked for a correlation between the richness/abundance of birds and the size of the area surveyed, the number of houses, the number of tree species and the number of individual trees. The results of multiple regression showed that bird richness had a direct relationship with vegetation complexity. The abundance and diversity of tree species were better predictors of bird species than the number of houses and size of the area surveyed. We discuss implications of this study for conservation and management of bird diversity in urban areas, such as the need to increase green areas containing a large diversity of native plant species. © 2011 Springer Science+Business Media, LLC.

Guía conceptual y metodológica para instructores de cursos de capacitación de INFOPLAN

Incluye Bibliografía

Categorías DEVSIS: esquema clasificatorio y conceptual

Incluye Bibliografía

Descentralización fiscal: marco conceptual

Incluye Bibliografía

Desarrollo social y planificación social: estudio de problemas conceptuales = Social development and social planning: a survey of conceptual and practical problems in Latin America

Incluye Bibliografía

Conceptual aspects of privatization

Includes bibliography

Comment on the article by Isaac Cohen Orantes and Gert Rosenthal "Reflections on the conceptual framework of Central American economic integration"

Includes bibliography

Existence of solutions for the 3D-micropolar fluid system with initial data in Besov-Morrey spaces

In this paper, we show a local-in-time existence result for the 3D micropolar fluid system in the framework of Besov-Morrey spaces. The initial data class is larger than the previous ones and contains strongly singular functions and measures. © 2013 Springer Basel.