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Effects of Erythrina poeppigiana pruning residues on soil organic matter in organic coffee plantations
(CATIE, Turrialba (Costa Rica) University of Wales, Bangor (RU). School of Agricultural and Forest Sciences, 2005)
The effects of Erythrina poeppigiana pruning residue effects on soil organic matter were investigated with three different objectives. Firstly, to study the effects of proximity of this shade tree on soil characteristics ...
Linking plant strategies and ecosystem function: an assessment of the contribution of biodiversity to neotropical grassland productivity
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE)
Bangor University, Gwynedd (RU), 2011)
These issues were investigated in a range of paddocks with two types of cover: semi-natural grassland and sown pastures within an altitudinal range of 200 to 400 m. In nine paddocks, 11 sequential biomass harvests after ...
Contribution of agricultural land uses to bird conservation: a case study of ecosystem service provisioning
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), 2016)
Understanding the contribution of agricultural land uses to biodiversity conservation is of utmost importance. With 38% of earth’s ice free land surface covered by crops and pastures, studying and understanding the potential ...
Forest ecosystem responses to edge effects and secondary forest development in northeastern Costa Rica: implications for conservation
(University of Idaho, Moscow, ID (EUA), Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Turrialba (Costa Rica), 2007)
Forest structure was examined at 20+ year old forest-pasture edges to assess edge effects. Stem density was significantly higher at forest edges than interiors due to an increase in small diameter trees close to edges. ...
The effects of local and landscape context on leafhopper (Hemiptera: cicadellinae) communities in coffeee agroforestry system of Costa Rica
(CATIE, Turrialba (Costa Rica)
University of Idaho, Moscow, ID (EUA), 2008-05)
This study examined the effects of local (shade composition, organic or conventional management, and weed management) and landscape (surrounding land uses) context on sharpshooter communities in coffee agroforestry systeMON ...
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 ...
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 ...
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 ...