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Mostrando ítems 11-20 de 72
Ecología comparada de Hypericum Laricifolium Juss. y de H. Juniperinum Kunth en el valle fluvioglacial del páramo de Mucubají. Mérida, Venezuela
(2009-07-15)
Hypericum laricifolium e Hypericum juniperinum son dos arbustos esclerófilos muy abundantes en hábitats parameros. Ambas especies suelen observarse coexistiendo, pero H.juniperinum parece ocupar microhábitats más húmedos ...
Diversidad, estabilidad y dinámica del paisaje en comunidades de sabana
(2009-07-15)
En los bordes de la Mesa de Guanipa (Venezuela) muestreamos comunidades arbóreas en distintas formas de relieve con el objetivo de estudiar las relaciones entre riqueza de especies (S) y diversidad (H’) con la estabilidad ...
Información General: Instituto de Ciencias Ambientales y Ecológicas (ICAE)
(SABER ULA, 2008-05-02)
The ICAE belongs to the Faculty of Sciences of the University of the Andes. Although its offices and laboratories are found in the city of Mérida, its radius action covers different ecosystems throughout the Venezuelan ...
Effect of dyke construction on water dynamics in the flooding savannahs of Venezuela
(2006)
In the flooded savannahs water is the main factor determining the ecosystem and its change.
During flooding, the level of water and the duration of flooding are highly dependent on
the relative height position of the ecosystem ...
Increase in the woody component of seasonal savannas under different fire regimes in Calabozo, Venezuela
(SABER ULA, 2005-06-27)
Abstract
Aim We tested the hypothesis that exclusion from fire and cattle is responsible for the increase in tree cover in open savanna vegetation.
Location Four plots in open savanna vegetation from the Calabozo region ...
Seed dispersal in Palicourea rigida, a common treelet species from neotropical savannas
(SABER ULA, 2005-01-26)
Seed dispersal in Palicourea rigida, a common treelet species from neotropical savannas
(Wütherich, Dirk † ; Azócar, Aura; García, Nuñez, Carlos and Silva, Juan F. )
Abstract
The dispersal system of Palicourea ...
Fire as a factor influencing the diversity of life forms in neotropical savannas
(SABER ULA, 2005-01-25)
Artículo publicado en:Pereira, R.C., Nasser L.C.B. (eds). 1996. Biodiversity and Sustainable Production of Food and Fibers in the Tropical Savannas, EMBRAPA, Brazil, pp. 6-9.
Population responses to fire in a tropical savanna grass, Andropogon Semiberbis: a matrix model approach
(SABER ULA, 2005-01-25)
Artículo publicado en: Journal of Ecology (1991), 79, 345-356.
Mapping savanna ecosystems of the Llanos del Orinoco using multitemporal NOAA satellite imagery
(2004)
Monthly composites NOAA-advanced very high resolution radiometer (AVHRR) normalized difference vegetation index (NDVI) images (June 1992–October 1993) were used to analyze the phenology of savanna ecosystems in the Llanos ...