TECAMEBIANOS (PROTOZOA: RHIZOPODA) DE UNA TURBERA DEL PARQUE NACIONAL PUYEHUE (40°45' S; 72°19' W), CHILE

Multi-annual climate in Parque Nacional Pan de Azúcar, Atacama Desert, Chile Clima multianual en el Parque Nacional Pan de Azúcar, Desierto de Atacama, Chile

The lomas formations of the Peruvian and Atacama deserts are characterized by both climatic and floristic spatial heterogeneity, as well as non-contiguous pockets of relatively distinct flora. We examined two distinct types of communities in Parque Nacional Pan de Azúcar in Chile, the low-elevation arroyo and bajada community, and the high-elevation fog-zone community. We determined the distrib...

Caracterizaci\'on del paisaje y an\'alisis del l\'imite oeste del Parque Nacional Carara, Costa Rica: implicaciones para la conservaci\'on de la biodiversidad

It is unknown if the current size and shape of protected areas (PA) in Costa Rica favors retention of viable populations of wildlife. The western border of Carara National Park (CNP) and its surroundings were characterized at a landscape level in order to consider their implications for biodiversity conservation. 54 400 hectares of Costa Rican Central Pacific tree cover were analyzed (1997, 200...

Batrachochytrium dendrobatidis y el Colapso de la Riqueza de Especies y Abundancia de Anuros en el Parque Nacional del Manu, Sureste de Per

Amphibians are declining worldwide, but these declines have been particularly dramatic in tropical mountains, where high endemism and vulnerability to an introduced fungal pathogen, Batrachochytrium dendrobatidis (Bd), is associated with amphibian extinctions. We surveyed frogs in the Peruvian Andes in montane forests along a steep elevational gradient (1200–3700 m). We used visual encounter su...

Antecedentes del Exito de Sistemas ERP en Chile: Una Investigacion Empirica

The success of the ERP systems is an important issue in the scientific literature of the area. Nevertheless, and as a result of its newness, mainly the investigation of the phenomenon has been of type descriptive or it has been oriented to qualitative methodologies. In this work we presented an explanatory model of the phenomenon and its empirical validation in a set of Chilean organizations. T...

Una Generalizacion del Modelo AGM de Cambio de Creencias