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Distribution and foraging by the leaf-cutting ant, Atta cephalotes L., in coffee plantations with different types of management and landscape contexts, and alternatives to insecticides for its control
(CATIE, Turrialba (Costa Rica). Universidad de Idaho, ID (EUA), 2006)
Atta cephalotes L., the predominant leaf-cutting ant species found in coffee farMON in the Turrialba region of Costa Rica, is considered a pest of the crop because it removes coffee foliage. I applied agroecosystem and ...
Landscape effects on insect pests of Dracaena marginata and their associated natural enemies in Costa Rica
(CATIE, Turrialba (Costa Rica), 2012)
This study examined how the landscape in which D. marginata is embedded affected the abundance and distribution of these three insect pest groups and their associated natural enemies. In order to evaluate the effect of the ...
Local knowledge regarding trade-offs among coffee productivity and other ecosystem services in a range of different agroforestry systems in Central America
(CATIE, Turrialba (Costa Rica), 2012)
This thesis gathers and analyses the local knowledge regarding ecosystem services in coffee producing regions of Costa Rica, Guatemala and Nicaragua, and compares this knowledge across a range of farming conditions. The ...
Payments for environmental services in Costa Rica: conservation and production decisions within the San Juan - La Selva Biological Corridor
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Turrialba (Costa Rica) University of Idaho, Moscow, ID (EUA), 2007)
This dissertation develops a model linking social and ecological theories to explain this interaction. This model is applied to Costa Rica’s program of payments for environmental service (PES) as a case example. The model ...
Pruning effects on roots of nitrogen fixing trees in the humid tropics
(CATIE, Turrialba (Costa Rica), 2000)
El presente estudio se llevó a cabo en condiciones de trópico húmedo en Turrialba, Costa Rica. Los objetivos fueron: 1) evaluar los efectos de la poda completa y parcial sobre N acumulado en la biomasa, y la dinámica del ...
Characterization of the spatial variability of soil properties and coffee fine roots in shade tree-coffee associations under organic and conventional managment practices
(CATIE, Turrialba (Costa Rica), 2011)
Investigaciones en sistemas agroforestales han enfatizado que estudios sobre interacciones bajo el suelo son importantes para el entender el desarrollo y la distribución de raíces finas de cultivos y árboles asociados. Los ...
Inducing resistance of spanish cedar Cedrela odorata L. and mahogany swietenia macrophylla King against y Hypsipyla grandella (Zeller) by grafting
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Turrialba (Costa Rica)University of Idaho, Moscow, ID (EUA), 2006)
A viable management program to prevent the shootborer Hypsipyla grandella (Zeller) from damaging Swietenia macrophylla King and Cedrela odorata L. wich are the most valuable timber species in Latin America, is currently ...
A geospatial data integration framework for mapping and monitoring tropical landscape diversity in Costa Rica's San Juan-La Selva Biological Corridor
(CATIE, Turrialba (Costa Rica), 2006)
Landcover change has substantially reduced the amount of tropical rain forests since the 1950s. Little is known about the extent of remaining forest types. A multivariate analysis of 144 forest plots across Costa Rica's ...
Contribution of trees to the control of heat stress in dairy cows and the financial viability of livestock farms in humid tropics
(CATIE, Turrialba (Costa Rica), 2002)
La presente disertación trata de dos temas: 1) el efecto de los árboles de sombra sobre el control del estrés calórico en el ganado de leche y 2) la contribución de los árboles dispersos en los pastizales para la viabilidad ...
Competitive strategies in community forestry: leveraging through second-tier collectie enterprises in Mexico and Guatemala
(CATIE, Turrialba (Costa Rica), 2012)
Although community forestry is widely recognized as a critical element in sustainable forest management strategies and the livelihoods of forest dependent people, the economic viability of community forest enterprises ...