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Selvas y bosques nublados de Venezuela

Ataroff Soler, Michele; García Nuñez, Carlos (Medina, E., Huber, O., Nassar, J., Navarro, P. Recorriendo el paisaje vegetal en Venezuela. Ediciones IVIC, Instituto Venezolano de Investigaciones Científicas. Caracas, Venezuela. pp. 125-155, 2013)

Spatial relations and population structure of a dominant tree along a treeline ecotone in the Tropical Andes: interactions at gradient and plant-neighbourhood scales

Llambí, Luis Daniel; Puentes, Johanna; García Nuñez, Carlos (Plant Ecology and Diversity 6(3-4): 343-353, 2013)

Background: Studies in temperate mountains suggest that plant-plant interactions modulate tree establishment above the forest line. In tropical mountains worldwide this issue remains largely unexplored. Aims: To analyse ...

Modelling competitive ability of neotropical savanna grasses: Simulation of shading and drought impacts on biomass production

Segarra, J.; Raventos, José; Acevedo, Miguel F.; Silva Armas, Juan F.; García Nuñez, Carlos (Ecological Informatis 13: 57-69, 2013)

In this paper, we develop a technique to model the spatial distribution of shoots along vertical and horizontal dimensions of a plant community. We use it to simulate the growth of a tropical savanna near the city of ...

Aspectos ecofisiológicos del establecimiento de dos especies de árboles siempreverdes de las sabanas estacionales

García Nuñez, Carlos (2012-06-26)

El patrón espacial y la abundancia relativa de gramíneas y árboles en las sabanas están determinados por interacciones complejas y dinámicas entre el clima, la topografía, los suelos, la geomorfología, la ...

Efectos del ambiente de luz en la respuesta fotosintética, anatomía foliar y relaciones hídricas en plantulas de dos especies arbóreas de la selva nublada de La Carbonera

García Nuñez, Carlos (2012-05-03)

Microclimate and regeneration patterns of Polylepis Sericea in a treeline forest of the Venezuelan Andes

Rada R., Fermin J.; García Nuñez, Carlos; Rangel, Sairo (SABER-ULA, 2011-06)

Tropical high mountains constitute environments where harsh conditions prevail. Polylepis forests are found above the continuous forest line throughout the Andes, with P. sericea as the only species in Venezuela. Sprouting ...

Seasonal gas exchange and water relations in juveniles of two evergreen neotropical savanna tree species with contrasting regeneration strategies

García Nuñez, Carlos; Azócar, Aura; Rada R., Fermin J. (Trees 25(3): 473-483, 2011)

Colonization dynamics of woody species into grasslands in Neotropical savannas are determined by two main factors: plant-available moisture and fire. Considering seasonality of precipitation and high fire frequency in these ...

Leaf gas exchange in canopy species of a Venezuelan cloud forest

Rada R., Fermin J.; García Nuñez, Carlos; Ataroff Soler, Michele (Biotropica 41(6): 659-664, 2009-11)

Tropical cloud forests are considered humid ecosystems with frequent cloud cover down to the ground surface. However, seasonal variation in precipitation may induce short-term water stress. For canopy leaves, this water ...

Coupling soil water and shoot dynamics in three grass species: A spatial stochastic model on water competition in Neotropical savanna

Segarra, J.; Acevedo, Miguel F.; Raventos, José; García Nuñez, Carlos; Silva Armas, Juan F. (Ecological Modelling 220: 2734 - 2743, 2009-10-24)

Savannas are ecosystems known for their high environmental and economic value. They cover at least 20% of the global land surface and, in some cases, can act as a boundary between tropical rainforest and deserts.Water is ...

Low temperature resistance in saplings and ramets of Polylepis sericea in the Venezuelan Andes

Rada R., Fermin J.; García Nuñez, Carlos; Rangel, Sairo (Acta Oecologica 35(5): 610–613, 2009-10)

The frequent occurrence of all year-round below zero temperatures in tropical high mountains constitutes a most stressful climatic factor that plants have to confront. Polylepis forests are found well above the continuous ...