CONTENTS

Articles ALEX BARRIOS and EMMERÍS QUINETRO Runoff assessement using SWRRB hidrologic model at the Zarzales-La Grande watershed SEIDA FINOL and ALEX BARRIOS Validation of SWRRB model in Guasare river basin, Zulia LINO VALERA, VICENTE GARAY, ALFREDO FLORES and JULIO SÁNCHEZ Apparent incompatibility in grafting of Pinus caribaea var. Hondurensis, in the clonal seed orchard of Santa Cruz de Bucaral, state of Falcón, Venezuela WILLIAMS LEÓN and NARCISANA E. DE PERNÍA Wood variability of Cordia thaisiana (Boraginaceae) in axial direction FRATERNIDAD HERNÁNDEZ and ARMANDO BRICEÑO V. Life cycle of skeletonizer worm, Eulepe gastralis stoll (Lepidoptera-pyralidae) on Tabebuia rosea FRATERNIDAD HERNÁNDEZ, ARGENIS MORA and ARMANDO BRICEÑO V. Spacial pattern evaluation of damage caused by Eulepe gastralis (Gn) in Tabebuia rosea tree LUDWING KAMMESHEIDT, ARMANDO TORRES LEZAMA and WILFREDO FRANCO Impact of selective logging on the diversity of tree species in a Tropical moist forest in the western plains of Venezuela LILIAM LARA The ecoturism: an option for forest reservations? The Caparo's experimental station: a case study ELVECIO PERNÍA, OTTO JURGENSON and JUAN LÓPEZ New alternatives in the map production for forest management JUAN LÓPEZ, OTTO JURGENSON, RAMÓN OSORIO and ELVECIO PERNÍA Evaluation of the vegetation in the flooding area at Camburito-Caparo Dam, Táchira, Mérida and Barinas states-Venezuela

Note PATRICIO YANEZ Geographical distribution and etnobotanical aspects of tree species of genus Pourouma ("Uva de monte") Cecropiaceae, at the Ecuadorean amazonic region

Thesis JOSÉ R. LOZADA Different intensitis impact of forest products on the capacity for remains mass recovery in Caparo Experimental Station, Barinas-Venezuela FRANCISCO ZERPA Prototype of information systems to support tropical forest silvicultural management ROSA J. RAMÍREZ G. Application of a methodology to a mass movement determination, a case: La Piñalera microbasin of río Dorada, Táchira-Venezuela NESTOR MORA Fungi attack effects of brown and white rots on natural and induced of tree venezuelan woods