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| Registros recuperados: 10 | |
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| Southgate, Douglas. |
| During the past 15 years, Ecuador has become the Western Hemisphere's leading producer and exporter of shrimp. Growth has come about largely through mariculture development. About 8,000 metric tons (MT) of shrimp have been captured off the Ecuadorian coast each year since the late 1970s. Meanwhile, pond output has increased several-fold, from less than 5,000 MT in 1979 to over 100,000 MT 12 years later (Table 1). Mariculture has expanded largely at the expense of renewable natural resources. Mangrove swamps, characterized by extremely high biological productivity and, therefore, a critical element of coastal ecosystems, have been displaced. In addition, shrimp postlarvae (PL) collection has at times been excessive and wastewater emissions from some... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1992 |
URL: http://purl.umn.edu/11893 |
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| Southgate, Douglas; Coles-Ritchie, Marc; Salazar-Canelos, Pablo. |
| Many people believe that tropical forest conservation strategies for Latin America should focus on extracting non-timber products. However, very little economic research has addressed the activity. This paper presents the results of a study of vegetable ivory, or tagua (Phytelephas aequatorialis), production in western Ecuador. It is one of the largest extractive industries in the hemisphere. We found that, until recently, households collecting tagua received payments that barely covered the value of their harvest labor. By contrast, a few firms that slice tagua into disks that are exported to overseas button manufacturers have captured sizable profits. This concentration of economic returns at the top of the domestic marketing chain has been typical of... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 1995 |
URL: http://purl.umn.edu/11875 |
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| Southgate, Douglas; Coxhead, Ian A.. |
| In Asian-Pacific developing countries, the prevalence of food insecurity has diminished dramatically in the past generation. Despite this, many millions continue to suffer from persistent or periodic food insecurity. The causes of food insecurity are both structural and market-related, including influences of public policy on market operations. The most vulnerable populations are those that simultaneously experience both these forms of insecurity. The places they inhabit tend to have poor-quality land, are exposed to climatic and other environmental risks, or both. These same populations either have relatively weak links with the non-food economy, in which higher wages and better income-earning opportunities make food self-sufficiency less important, or... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Food Security and Poverty; International Development. |
| Ano: 2009 |
URL: http://purl.umn.edu/92221 |
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| Registros recuperados: 10 | |
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