Results 1 to 10 of about 6,463 (98)

Relación longitud-peso en once especies de peces de los lagos de planos inundables amazónicos

open access: yesRevista Colombiana de Ciencia Animal Recia, 2015
Este estudio determinó la relación longitud-peso de once especies de peces de la Amazonia, capturados en lagos de várzea, en los años 2004, 2005 y 2006.
IVAN A TRIBUZY-NETO   +3 more
doaj   +2 more sources

DINÁMICA DEL ENSAMBLAJE ALGAL EPIFÍTICO EN EL SISTEMA DE PLANOS INUNDABLES DE AYAPEL A TRAVÉS DEL PULSO DE INUNDACIÓN

open access: yesRevista U.D.C.A Actualidad & Divulgación Científica, 2013
Se evaluaron las variaciones espaciales y temporales de los ensambles de algas epifíticas asociadas a raíces de macrófitas, en 14 sitios de muestreo: siete zonas con condiciones lenticas y siete con condiciones lóticas del sistema de planos inundables de
Yimmy Montoya Moreno, Néstor Aguirre
doaj   +7 more sources

Improving species status assessments under the U.S. Endangered Species Act and implications for multispecies conservation challenges worldwide

open access: yesConservation Biology, Volume 35, Issue 6, Page 1715-1724, December 2021., 2021
Abstract Despite its successes, the U.S. Endangered Species Act (ESA) has proven challenging to implement due to funding limitations, workload backlog, and other problems. As threats to species survival intensify and as more species come under threat, the need for the ESA and similar conservation laws and policies in other countries to function ...
Reed F. Noss   +18 more
wiley   +1 more source

Resolving the relationships of the enigmatic Sapotaceae genera Beauvisagea and Boerlagella, and the position of Planchonella suboppositifolia

open access: yesTAXON, Volume 69, Issue 5, Page 998-1015, October 2020., 2020
Abstract The pantropical plant family Sapotaceae currently includes 65–70 genera. Two genera, Beauvisagea and Boerlagella, were described in 1890s using incomplete material from West New Guinea (Bird's Head Peninsula) and Sumatra, neither of which has been collected since.
Ulf Swenson   +3 more
wiley   +1 more source

Participative construction of ecological restoration strategies for wetlands of the middle Magdalena River drainage: a tool for environmental land management

open access: yesBiota Colombiana, 2014
The socioecological relevance of the Magdalena Medio (Colombia) region wetlands and the dynamics of their degradation reveal the need to develop restoration processes that guarantee the land's sustainability as a tool for the transformation of social ...
Natasha V. Garzón   +2 more
doaj   +1 more source

Digital graphic tools and SIG applied to interaction of geographic characteristics of Concepción with the city. (XVIII to XX century) [PDF]

open access: yes, 2005
The process of urbanisation of the city Concepción, has historically been affected by the characteristics of his natural environment, in origin, evolution and development.
Lira, Roberto, Vidal, Claudia
core   +1 more source

La representación urbanística de los espacios informales. Las villas miseria de Buenos Aires (1947-1965) [PDF]

open access: yes, 2018
open access journalIn this article we aim to redefine the notion of informal space through the analysis of their cartographic representations as produced by urban planners.
Elinbaum, Pablo, Massidda, Adriana Laura
core   +1 more source

Construcción participativa de estrategias de restauración ecológica en humedales del Magdalena Medio, Colombia: una herramienta para el ordenamiento ambiental territorial

open access: yesBiota Colombiana, 2014
La importancia socio-ecológica de los humedales del Magdalena Medio (Colombia) y su dinámica de degradación, ponen de manifiesto la necesidad de desarrollar procesos de restauración que garanticen la sostenibilidad de los territorios, como herramienta de
Natasha V. Garzón   +2 more
doaj   +4 more sources

Structure of the epiphyton growing on different aquatic macrophytes in tropical flood plains [PDF]

open access: yes, 2013
El objetivo de este trabajo fue obtener un conocimiento detallado de la composición específica del epifiton,sobre diferentes macrófitas acuáticas dominantes en el sistema de la Ciénaga de Ayapel durante diferentes fases del ciclo hidrológico.
Aguirre, Nestor   +2 more
core   +3 more sources

Analysis of institutional effectiveness to floods in Totana´s town (Murcia) [PDF]

open access: yes, 2015
Las herramientas de ordenación territorial constituyen el primer sistema defensivo ante los riesgos de inundación con menor impacto sobre el entorno y coste económico para salvaguardar la integridad de las personas.
López Martínez, Francisco
core   +3 more sources

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