Now showing items 21-30 of 75
El fuego y los árboles de las sabanas
(Medina E, Huber O, Nassar JM & Navarro (Eds). Recorriendo el paisaje vegetal de Venezuela. Ediciones IVIC., 2013)
Community impacts of Prosopis juliflora Iivasion: biogeographic and congeneric comparisons
(Plos ONE 7(9):e44966. 1-13, 2012-09-12)
We coordinated biogeographical comparisons of the impacts of an exotic invasive tree in its native and non-native ranges with a congeneric comparison in the non-native range. Prosopis juliflora is taxonomically complicated ...
Ecología, hidrología y suelos del páramo
(Programa de Capacitación Técnica. Proyecto Páramo Andino-CONDESAN, Quito. 272 pp., 2012-08)
Water relations and gas exchange in Coespeletia moritziana (Sch. Bip) Cuatrec., a giant rosette species of the high tropical Andes
(Photosynthetica 50: 429-436, 2012-04-26)
Giant rosettes are ones of the most striking features of the vegetation in the high tropical Andes, with Coespeletia moritziana reaching the highest altitudes up to 4,600 m a.s.l. Different from other giant rosettes, this ...
Freezing avoidance in tropical Andean bamboos
(LXth World bamboo Congress proceedings. Sección 2, Massachusetts, USA. pp. 247-257, 2012-04-15)
Frost resistance was compared in five species of different life forms in the neotropical woody bamboo genus Chusquea growing along a cloud forest-paramo gradient, between 2250-4010 m a.s.l. in the Venezuelan Andes. C. ...
Assessing and modeling the role of the native legume Lupinus meridanus in fertility restoration in a heterogeneous mountain environment of the tropical Andes
(Agriculture, Ecosystems and Environment 159 (2012) 29-39, 2012)
The role of the native legume Lupinus meridanus on fertility restoration in long fallow agriculture of the Venezuelan Andes was analyzed using field and laboratory data and a process-based model of succession (FAPROM). L. ...
Gas exchange in sweet pepper (Capsicum chinense Jacq) under different light conditions
(Journal of Agricultural Science, 3 (3):134-142, 2011-09)
Plants in the tropics are exposed to high radiation and consequently high temperature and evaporative demands throughout the year. Under these conditions, physiological processes and final yield may negatively affect ...
Avian nectar robbers of Passiflora mixta (Pasifloraceae): Do they have a positive effect on the plant?
(Interciencia 36(8): 587-592, 2011-08-05)
The effect of nectar robbing on plant reproduction may be negative, positive or neutral. The effect was evaluated on Passiflora mixta, an Andean high-mountain species that is pollinated by the Sword-billed Hummingbird ...
Are cloud forest tree structure and environment related in the Venezuelan Andes?
(Austral Ecology 36, Issue 3: 280-289, 2011-05)
Cloud forest vegetation structure and composition were studied in theVenezuelan Andes at three sites in Mérida State. Although the sites are within 10 to 30 km of each other, climatic, geologic and topographic differences ...