Eduardo Jose Somarriba

Eduardo Jose Somarriba
CATIE - Centro Agronómico Tropical de Investigación y Enseñanza | CATIE · Program in Agroforestry and Sustainable Agriculture

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284
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Publications

Publications (284)
Article
Full-text available
El proyecto Trees on Farms ejecutado por el CATIE, identificó la necesidad de crear una herramienta conceptual y operativa que permita la clasificación automática de la cobertura arbórea en paisajes productivos, dándose énfasis a las cercas vivas como elementos de conexión, las cuales favorecen la conectividad ecológica de especies de aves, y estim...
Technical Report
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TreesOnFarms Analyzer, versión 1.0, es una aplicación de software para analizar y extraer información de coberturas vegetales en ortomosaicos y modelos de elevación digital, a través de una interfaz web, de forma sencilla y ágil. Sus funcionalidades incluyen el cálculo de índices de vegetación RGB, extracción de modelos de alturas de la cobertura,...
Presentation
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Cocoa-based agroforestry systems are assets whose productivity declines with age, affecting the livelihood of millions of farmers worldwide, contributing to deforestation, carbon emission, and biodiversity loss. The optimal time for Renovation and Rehabilitation (R&R) has always eluded agronomists and producers. Under this motivation, a theoretical...
Technical Report
Full-text available
En esta guía se presenta el uso de la herramienta de software eCognition de la empresa Trimble® para el análisis de coberturas vegetales en sistemas agroforestales. A través de una guía tutorial se explica el proceso de segmentación y clasificación supervisada en categorías objetivas, así como los procesos para acondicionar los resultados y exporta...
Article
Humanity is facing a rapid decline in global biodiversity, caused mainly by tropical deforestation through industrial and smallholder agriculture. However, smallholder agriculture landscapes host areas containing home gardens and other agroforestry systems (AFS) proved highly relevant for soil and biodiversity conservation. The positive interaction...
Article
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A bstract Cocoa farmers must decide on whether to rehabilitate (Rh) or to renovate (Re) a cocoa orchard when its productivity declines due to ageing, disease outbreaks or other causes. Deciding on Rh/Re is often a complex, expensive and conflictive process. In this review, we (1) explore the diversity of contexts, driving forces, stakeholders and r...
Article
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Los cafetales son de gran importancia cultural y económica en la República Dominicana, a pesar de que la mayoría de los productores los manejan de forma laxa y empírica. Es imprescindible tecnificar los cafetales, optimizarlos y mejorar su rentabilidad. Los sistemas agroforestales de café usados en el país son clave en la rentabilidad y en la resil...
Article
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In Latin America, the cultivation of Arabica coffee (Coffea arabica) plays a critical role in rural livelihoods, biodiversity conservation, and sustainable development. Over the last 20 years, coffee farms and landscapes across the region have undergone rapid and profound biophysical changes in response to low coffee prices, changing climatic condi...
Technical Report
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En este informe se captura el amplio conocimiento de los especialistas y agentes de extensión del Instituto Dominicano del Café (antes CODOCAFÉ, hoy INDOCAFE) para describir las actividades de manejo, el uso de insumos y mano de obra, los costos de los insumos y los rendimientos y precios del café y de los productos arbóreos del dosel de sombra de...
Article
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Within the framework of the “Central American Program for the Comprehensive Management of Coffee Rust (PROCAGICA), financed by the European Union and executed by IICA-CATIECIRAD- CAC in collaboration with the coffee institutions, CATIE has facilitated the process of strengthening of national and regional research and technology transfer platforms....
Article
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Modern coffee farming faces many challenges that negatively affect its sustainability, such as the loss of productivity due to epidemiological effects exacerbated by fluctuating weather conditions. The objective of the research, within the framework of the CATIE-PROCAGICA-IICA-EU Project, was to establish a network of 200 plots in four Central Amer...
Article
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The CATIE International Coffee Collection located in Turrialba, Costa Rica has conserved germplasm of the Coffea genus since 1949. Since then it has made significant contributions to the regional coffee farming. This collection is of world importance due to the genetic diversity it preserves, especially of the C. arabica species. Under the agreemen...
Technical Report
Full-text available
En este manual se describen de forma escrita, gráfica y matemática siete diferentes tipos de podas de café derivados de experiencia de manejo e investigación aplicada en Costa Rica, Nicaragua, Honduras, El Salvador, Guatemala, México y la República Dominicana.
Article
Full-text available
Cocoa cultivation is labeled as a driver of both deforestation and reforestation, yet the extent of the phenomena varies at farm and landscape level and as a response to national and local contexts. In this study, we documented the main pathways and contexts behind cocoa cultivation in two sites with different histories of cocoa cultivation. We com...
Article
The outbreak of frosty (Moniliophthora roreri) and black pod (Phytophthora palmivora) in Central American cacao agroforests throughout the 1980s led to the breeding of Theobroma cacao clones resistant to these diseases. However, while clonal disease resistance has been well-documented, clonal adaptability to contrasting pedoclimates remains less un...
Technical Report
Full-text available
En este estudio de 400 cafetales de la República Dominicana se determinaron las principales características de los cafetales, los tamaños típicos de las plantaciones, las variedades de café más cultivadas, la composición botánica y productiva del dosel de sombra, la producción y destino de los productos agroforestales y las preferencias de los prod...
Article
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The suitability and profitability of coffee cultivation in Central America are at risk due to pest and disease outbreaks, price fluctuations and climate change. Proper shading is claimed to be one of the most promising practices to seek sustainability and better adapt coffee cultivation to climate change in marginal areas. This study recorded and c...
Article
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COVID-19 has exposed the vulnerability of our economies to shocks, and it has laid bare deep inequalities in our society that threaten to derail the Sustainable Development Goals. Governments around the world are looking for recovery options that deliver new jobs and businesses. Few sectors link job creation so closely to sustainable green producti...
Article
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[Introducción]: En las regiones secas de Centroamérica, los ganaderos llevan su hato a los bosques de sus fincas durante la temporada seca, pero se sabe poco sobre esta práctica. [Objetivo]: Determinar la frecuencia de esta práctica, y cómo se ajusta al manejo de fincas. [Metodología]: Se administraron 43 entrevistas semiestructuradas a ganaderos d...
Article
Habitat loss is the primary driver of biodiversity decline worldwide, but the effects of fragmentation (the spatial arrangement of remaining habitat) are debated. We tested the hypothesis that forest fragmentation sensitivity-affected by avoidance of habitat edges-should be driven by historical exposure to, and therefore species' evolutionary respo...
Technical Report
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In this report, we present the main findings of a long-term study evaluating the survival and growth performance of twelve timber species established in linear plantations in small-farms in Costa Rica and Panamá.
Article
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Bromeliads are common plants in the Neotropics. Being epiphytic, they are often incorrectly considered as parasites and removed from agroforestry systems. However, their water-filled leaf axils provide habitats for a diverse group of aquatic organisms, potentially including cacao pollinating dipterans which could be beneficial to local farmers. Thu...
Technical Report
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Coffee and cocoa cultivation pathways to reduce deforestation and increase tree cover.
Book
Full-text available
La región de Centroamérica cubre una superficie de 524.000 km2, de los cuales 181.000 km2 (el 35%) corresponden a lo que se denomina “Corredor Seco Centroamericano”. En la región viven aproximadamente 26 millones de personas, más de la mitad de ellas en el área rural, que se caracteriza por un alto índice de pobreza y una agricultura de subsistenci...
Presentation
Full-text available
Background. The species–area relationship (SAR) is one of the most fundamental tools in ecology and nowadays it has also become a tool for sustainable management and conservation. Little has been evaluated to elucidate the best SAR models that explain and predict tree species richness (S) appropriate for productive landscapes. Trees on farms are pr...
Article
Article available at http://www.tandfonline.com/eprint/mhV6yaZZ3yujQZQb273S/full This study sought to identify agroforestry systems with coffee that simultaneously generate financial profits, provide goods for family consumption, and store significant amounts of carbon in aboveground biomass. We studied 27 coffee plantations in Nicaragua, grouped...
Article
Full-text available
The PREDICTS project—Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)—has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used t...
Data
The PREDICTS project—Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)—has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used t...
Chapter
Full-text available
Trees-on-Farms (TonF) are ubiquitous. Farmers obtain numerous goods and services from their trees, which help them to cope with their livelihood needs and contingencies, climate change, and other stresses. Some benefits from trees on farms are extensive to the global society. Decision and policy makers as well as development leaders are not conscio...
Article
Fragmentation and habitat loss contribute considerably to global declines of amphibians and reptiles. However, few studies focus on forest edges, created during the fragmentation process, as proximate drivers of the local demographic structure of populations. Here, we use abundance data of amphibians and reptiles to study their responses to forest...
Technical Report
Full-text available
The area known as the ‘Zona de Pueblos’ (‘Land of the Small Towns’), located in the Nicaraguan departments of Masaya, Managua and Carazo, stretches across 10 municipalities (Catarina, El Crucero, La Concepción, Managua, Masatepe, Masaya, Nandasmo, San Juan de Oriente, San Marcos and Ticuantepe). It is the main region for production of traditional f...
Article
Full-text available
The PREDICTS project—Projecting Responses of Ecological Diversity In Changing Terrestrial Systems (www.predicts.org.uk)—has collated from published studies a large, reasonably representative database of comparable samples of biodiversity from multiple sites that differ in the nature or intensity of human impacts relating to land use. We have used t...
Chapter
Full-text available
En este capítulo analizamos la producción de madera en sistemas agroforestales (SAF) con café, cacao y ganadería en América Central. Se compiló y sintetizó la información disponible para Centroamérica sobre árboles en potreros, plantaciones de café y de cacao, incluyendo las listas de las especies maderables más abundantes y representativas, de sus...
Book
Full-text available
Los países de América Latina y el Caribe participan activamente de los esfuerzos globales para reducir pobreza e inequidades execrables, conservar la biodiversidad, enfrentar las causas y consecuencias del cambio climático, así como para luchar contra el aumento de los gases de efecto invernadero (GEI), la degradación de las tierras y el avance de...
Technical Report
Full-text available
En este estudio de línea de base del Proyecto Cacao Centroamérica (PCC) se entrevistaron y evaluaron las fincas de 1500 familias cacaoteras en seis países de la región (Panamá, Costa Rica, Nicaragua, Honduras, Guatemala, Belice), a razón de 250 familias por país. El estudio abarcó ocho grandes temas: 1) la caracterización biofísica y política de lo...
Chapter
Full-text available
intRoducción Cuando se publicaron las dos ediciones del libro sobre sistemas agroforestales producido por la OTS y el CATIE (Montagnini et al. 1986 y 1992) el énfasis era mostrar cómo los sistemas agrofo-restales podían ser alternativas viables de producción, aumentando la sostenibilidad, mejorando los suelos y favoreciendo a los pequeños agriculto...
Article
Full-text available
Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species’ threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeograph...
Article
Research published in this special issue on cocoa agroforestry illustrates the multifunctional role of shade trees for sustaining cocoa production and improving farmers’ livelihoods, and addresses tradeoffs between higher cocoa yield and the provision of ecosystem services to local households and global society. Indeed, the use of diverse shade in...
Article
Full-text available
In the humid tropics, the rapid rate of deforestation has resulted in a race to protect remaining forest patches that are increasingly isolated within a rapidly expanding agricultural matrix. In these landscapes, a significant area consists of complex agro-forestry systems with high structural and functional plant diversity, providing critical reso...
Article
Full-text available
While the potential of agroforestry products to contribute to rural livelihoods is well-recognized, the quantification of their yields, incomes, and value for domestic consumption (VDC) and knowledge about their relationships with biodiversity are still scarce. This information is crucial for choosing the best strategy for growing cocoa in tropical...
Article
Full-text available
Cocoa–timber systems have been proposed as viable alternative for simultaneously satisfying the livelihood needs of the farmers (in terms of production of cocoa and other goods for family use or sale) while improving the capacity of the cocoa agroforestry system to provide other ecosystem services at both the plot and landscape level. In this paper...
Book
Full-text available
Las combinaciones de árboles, cultivos y animales en los sistemas agroforestales, se supone, cumplen con un rol positivo en la adaptación al cambio climático a nivel de finca, hogar y el paisaje. El proyecto “Contribución de la diversidad arbórea a los medios de vida para la adaptación y la mitigación al cambio climático” busca describir y cuantifi...
Article
Full-text available
Addressing the global challenges of climate change, food security and poverty alleviation requires enhancing the adaptive capacity and mitigation potential of agricultural landscapes across the tropics. However, adaptation and mitigation activities tend to be approached separately, due to a variety of technical, political, financial and socioeconom...
Article
Smallholder farmers have developed knowledge about soil and crop management through long-term, on-farm observations. Yet, food insecurity and land degradation continue to threaten livelihoods, globally. Part of the solution lies in linking local and scientific knowledge to develop improved agricultural strategies. We argue that incorporating farmer...
Article
Full-text available
Habitat fragmentation studies have produced complex results that are challenging to synthesize. Inconsistencies among studies may result from variation in the choice of landscape metrics and response variables, which is often compounded by a lack of key statistical or methodological information. Collating primary datasets on biodiversity responses...
Research Proposal
Full-text available
El cacao se ha cultivado en Mesoamérica por más de 3000 años. Al momento de la conquista española, hace más de 500 años, la producción de cacao se concentraba en el Soconusco, Chiapas (costa pacífica del sur de México), con una segunda zona de producción en Izalco, El Salvador, y pequeñas zonas de producción en Rivas, Nicaragua, en las riberas del...
Research Proposal
Full-text available
El impacto que han generado los cambios en las tendencias de consumo del cacao y sus productos derivados en los últimos 10 años, se traduce en la reactivación del cultivo principalmente en los países productores, abriendo oportunidades para fortalecer los eslabones primarios de la cadena de valor; que históricamente han sido los más débiles. La pro...
Research Proposal
Full-text available
El impacto que han generado los cambios en las tendencias de consumo del cacao y sus productos derivados en los últimos 10 años, se traduce en la reactivación del cultivo principalmente en los países productores, abriendo oportunidades para fortalecer los eslabones primarios de la cadena de valor; que históricamente han sido los más débiles. La pro...
Research Proposal
Full-text available
El impacto que han generado los cambios en las tendencias de consumo del cacao y sus productos derivados en los últimos 10 años, se traduce en la reactivación del cultivo principalmente en los países productores, abriendo oportunidades para fortalecer los eslabones primarios de la cadena de valor; que históricamente han sido débiles. Se estima que...