8 research outputs found
Current legal regulations applicable during the life cycle stages of civil projects of public works in the city of Barranquilla
Los proyectos civiles de obras públicas en la ciudad de
Barranquilla han jugado un papel muy importante en el
desarrollo de la ciudad y es por ello que se hace
necesario el conocimiento de las normativas que se
deben cumplir en cada una de las etapas de sus ciclos
de vida, ya que cada día el número de proyectos
aumenta y esta necesidad crece. Atendiendo a esta
necesidad, con esta investigación se pretende compilar
la normativa legal vigente aplicable durante las etapas
del ciclo de vida de los proyectos civiles de obras
públicas en la ciudad de Barranquilla. En primer lugar
se realiza la identificación de las etapas del ciclo de vida
de los proyectos y las entidades que las regulan a nivel
nacional, partiendo así del análisis de la información
recolectada. Las herramientas utilizadas para la
realización de este estudio fueron la guía del PMBOK,
entrevistas realizadas a profesionales del área,
opiniones de participantes indirectos y las fuentes
bibliográficas.Civil projects of public works in the city of Barranquilla
have played a very important role in the development of
the city and that is why it becomes necessary to know
the regulations that must be fulfilled in each of the
stages of its life cycles, being that each day the number
of projects increases and this need grows. In response
to this need, this research aims to compile the current
legal regulations applicable during the life cycle stages
of civil projects of public works in the city of
Barranquilla. Firstly, the identification of the stages of
the life cycle of the projects and the entities that
regulate them at the national level is carried out,
starting from the analysis of the information collected.
The tools used to carry out this study were the PMBOK
guide, interviews with professionals in the field,
opinions of indirect participants and bibliographic
sources
Consistent patterns of common species across tropical tree communities
Trees structure the Earth’s most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations1,2,3,4,5,6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth’s 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories7, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world’s most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees.Publisher PDFPeer reviewe
Cuentos que construyen paz
Esta propuesta se enmarca en el Proyecto Comunidades Educativas que Construyen Paz, del Instituto de Estudios Latinoamericanos (IDELA), cuyo propósito es facilitar procesos pedagógicos para la paz con comunidades educativas, por medio de una metodología lúdica y participativa, con el fin de promover la construcción de una cultura de paz en los espacios de convivencia cotidianos.Este libro es el resultado de un proceso que se fue tejiendo durante el 2021, el Festival para la Paz, el cual se realiza como una forma de contribuir a la creación y difusión de espacios participativos, lúdicos y creativos para instar a la paz desde las comunidades educativas. Esto, a modo de ir constituyendo una red con ideas novedosas que dan forma a dichos cuentos, constructores de paz. La creación y elaboración de cuentos fue una apuesta con equipos interdisciplinarios, niñas y niños de las escuelas públicas de la Regional de Heredia del Ministerio de Educación Pública de Costa Rica: Escuela Finca Guararí, Escuela Miguel Aguilar Bonilla, Escuela Rubén Darío y Escuela Santiago.This book is the result of a process that was woven during 2021, the Festival for Peace, which is carried out as a way to contribute to the creation and dissemination of participatory, playful and creative spaces to encourage peace from the educational communities. This, as a way of building a network with innovative ideas that give shape to these stories, peace builders. The creation and elaboration of stories was a bet with interdisciplinary teams, girls and boys of the public schools of the Heredia Regional of the Ministry of Public Education of Costa Rica: Finca Guararí School, Miguel Aguilar Bonilla School, Rubén Darío School and Santiago School.Instituto de Estudios Latinoamericano
Consistent patterns of common species across tropical tree communities
International audienceAbstract Trees structure the Earth’s most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations 1–6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth’s 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories 7 , we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world’s most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees
Consistent patterns of common species across tropical tree communities
Trees structure the Earth’s most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations1–6 in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth’s 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories7, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world’s most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees
Consistent patterns of common species across tropical tree communities
Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth's 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories , we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world's most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees
Consistent patterns of common species across tropical tree communities
Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth's 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories , we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world's most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees
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Consistent patterns of common species across tropical tree communities
Trees structure the Earth's most biodiverse ecosystem, tropical forests. The vast number of tree species presents a formidable challenge to understanding these forests, including their response to environmental change, as very little is known about most tropical tree species. A focus on the common species may circumvent this challenge. Here we investigate abundance patterns of common tree species using inventory data on 1,003,805 trees with trunk diameters of at least 10 cm across 1,568 locations
in closed-canopy, structurally intact old-growth tropical forests in Africa, Amazonia and Southeast Asia. We estimate that 2.2%, 2.2% and 2.3% of species comprise 50% of the tropical trees in these regions, respectively. Extrapolating across all closed-canopy tropical forests, we estimate that just 1,053 species comprise half of Earth's 800 billion tropical trees with trunk diameters of at least 10 cm. Despite differing biogeographic, climatic and anthropogenic histories
, we find notably consistent patterns of common species and species abundance distributions across the continents. This suggests that fundamental mechanisms of tree community assembly may apply to all tropical forests. Resampling analyses show that the most common species are likely to belong to a manageable list of known species, enabling targeted efforts to understand their ecology. Although they do not detract from the importance of rare species, our results open new opportunities to understand the world's most diverse forests, including modelling their response to environmental change, by focusing on the common species that constitute the majority of their trees