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Biodiversity Conservation, Ecosystem Functioning, and Economic Incentives under Cocoa Agroforestry Intensification
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Biodiversity Conservation, Ecosystem Functioning, and Economic Incentives under Cocoa Agroforestry Intensification
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Journal Article
Biodiversity Conservation, Ecosystem Functioning, and Economic Incentives under Cocoa Agroforestry Intensification
2009
Overview
World chocolate demand is expected to more than double by 2050. Decisions about how to meet this challenge will have profound effects on tropical rainforests and wild species in cocoa-producing countries. Cocoa, \"the chocolate tree,\" is traditionally produced under a diverse and dense canopy of shade trees that provide habitat for a high diversity of organisms. The current trend to reduce or eliminate shade cover raises concerns about the potential loss of biodiversity. Nevertheless, few studies have assessed the ecological consequences and economic trade-offs under different management options in cocoa plantations. Here we describe the relationships between ant ecology (species richness, community composition, and abundance) and vegetation structure, ecosystem functions, and economic profitability under different land-use management systems in 17 traditional cocoa forest gardens in southern Cameroon. We calculated an index of profitability, based on the net annual income per hectare. We found significant differences associated with the different land-use management systems for species richness and abundance of ants and species richness and density of trees. Ant species richness was significantly higher in floristically and structurally diverse, low-intensity, old cocoa systems than in intensive young systems. Ant species richness was significantly related to tree species richness and density. We found no clear relationship between profitability and biodiversity. Nevertheless, we suggest that improving the income and livelihood of smallholder cocoa farmers will require economic incentives to discourage further intensification and ecologically detrimental loss of shade cover. Certification programs for shade-grown cocoa may provide socioeconomic incentives to slow intensification.
Publisher
Blackwell Publishing Inc,Wiley-Blackwell,Blackwell Publishing Ltd
Subject
/ Agronomy. Soil science and plant productions
/ Animal, plant and microbial ecology
/ Ants
/ Biological and medical sciences
/ Cameroon
/ Canopies
/ canopy
/ Cocoa
/ Conservation of Natural Resources
/ Conservation of Natural Resources - economics
/ Conservation, protection and management of environment and wildlife
/ Farmers
/ Forestry
/ Fundamental and applied biological sciences. Psychology
/ gardens
/ General agronomy. Plant production
/ Generalities. Agricultural and farming systems. Agricultural development
/ habitats
/ hormigas
/ Income
/ Insects
/ Land use
/ Parks, reserves, wildlife conservation. Endangered species: population survey and restocking
/ programa de certificación de cacao
/ Species
/ Trees
