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Now showing items 11-20 of 24
Effects of deforestation and riparian buffers on lotic communities in Southeastern Costa Rica: implications for biodiversity conservation in tropical streams
(CATIE, Turrialba (Costa Rica), 2007)
To examine the effects of deforestation on stream communities in southeastern Costa Rica and test the hypothesis that riparian forest buffers can reduce these effects, comparisons were made between forested stream reaches ...
Effects of habitat fragmentation on the reproductive ecology and conservation genetics of the almendro (Dipteryx panamensis), a keystone rainforest tree
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), Turrialba (Costa Rica), University of Idaho, Moscow, ID (EUA), 2006)
Deforestation in the tropics creates a mosaic of forest patches embedded in a human-dominated matrix. Maintaining biodiversity in these fragmented landscapes relies on their ability to sustain ecological processes. This ...
Participatory research for validation and dissemination of agroforestry technologies to small farmers
(CATIE, Turrialba (Costa Rica), 2000)
El principal objetivo del proyecto es evaluar un acercamiento en la investigación participativa para el establecimiento de sistemas agroforestales en pequeñas parcelas en Rio Guayabo, Costa Rica. Esperando lograr un ...
Multidisciplinary approach to support the design of a local policy of payment for hydrological ecosystem services, in a microwatershed located in northern Veracruz, México
(CATIE, Turrialba (Costa Rica), 2009)
With the target to understand the complexity involved in the design of PHES policies, this thesis developed a methodology to generate basic information that will be used in the construction of local PHES policy. The ...
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. ...
Tropical bird assemblages in coffee agroforestry systems: exploring the relationships between landscape context, structural complexity and bird communities in the Turrialba - Jiménez Biological Corridor, Costa Rica
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), 2005)
El objetivo de este estudio fue el de explorar las relaciones que existen entre el contexto paisajístico (cobertura de bosque aledaño), la complejidad estructural y las comunidades de aves presentes dentro de estos sistemas ...
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 ...
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 ...
Birds, dung beetles and trees in a fragmented landscape of Cañas, Guanacaste: relationships between tree cover and biodiversity
(Centro Agronómico Tropical de Investigación y Enseñanza (CATIE), 2001)
La agricultura ha alterado la cubierta de vegetación natural y ha fragmentado el corredor centroamericano. Aproximadamente el 63 por ciento del total de tierras de América Central está dedicado a actividades intensivas de ...
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 ...