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| Seed circulation among farmers, which is embedded in composite social networks, is a key process in the dynamics of seed systems that shape crop diversity. We analyzed the daily circulation of biological objects, i.e., cultivated plants (31 species, 284 landraces), within a community of first-generation migrants (16 households, 30 persons) living on the island of Vanua Lava in the South Pacific archipelago nation of Vanuatu. By combining participant observation, ethnobiological inventories, and social network analysis, we investigated how farmer social status and plant biocultural value affect plant circulation. Plant biocultural value was estimated by referring to their local classification according to uses, cultivation practices, growing environments,... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Emic categories; Exponential Random Graph Models; Folk classification; Food system; Informal seed system; Oceania; Seed exchange network; Social network analysis. |
| Ano: 2016 |
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| Melguen, Marthe. |
| A time when France, as well as Great Britain, had a very ambitious maritime policy, the La Pérouse expedition was the only maritime expedition conceived, designed and followed at a national level by the King himself, Louis XVI. The excellence of the Expedition's preparation and of its importance in terms of scientific results, the exceptional concern of La Pérouse in the fields of data gathering and transmission, his very high quality as captain of a global expedition, made it a remarkable achievement, despite its disastrous end. |
| Tipo: Text |
Palavras-chave: D'Entrecasteaux; Cook; La Pérouse; Age of Enlightenment; Voyages of exploration; Voyages of discovery; North western America; North east Asia; Oceania; Tasmania; Pacific Ocean. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/acte-358.pdf |
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| Steadman, D.W.. |
| The arrival of prehistoric peoples in Oceania over the past several millennia resulted in the extinction of many species and populations of megapodes. Before these anthropogenic losses, species of megapodes ranged across Melanesia, Western Polynesia, and much of Micronesia. Island groups that lack megapodes today but were inhabited by them in the past include New Caledonia, Fiji, the Ha`apai Group and `Eua (Tonga), Samoa, Niue, and Pohnpei. The extinct megapodes varied in size from a tiny, quail-like species of Megapodius in Tonga to the large, flightless Sylviornis of New Caledonia. Remote Tongan islands as small as 13 km2 were able to sustain three species of Megapodius before human impact, thus calling into question the validity of using modern species... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Megapodiidae; Biogeography; Extinction; Oceania; 42.83. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/219416 |
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| Rocha, S.; Ineich, I.; Harris, D. James. |
| With an impressively wide distribution, Gehyra mutilata is present on almost all Indian and Pacific Ocean islands and in large regions of Southeast Asia and Indonesia. Mitochondrial sequence data (~500 bp) from individuals covering large parts of its (mainly insular) distribution reveals deep cryptic variation and strong geographic structure, with two well differentiated lineages. Molecular data also reveals that the wide Indian and Pacific insular distribution of Gehyra is very recent and, at least across the Indian Ocean islands, most probably the result of human-aided dispersal, as no variation within this lineage was found. Further research is needed to determine geographic patterns of variation across Southeast Asia, the level of genetic variation,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 16s rRNA; Asia; Biogeography; Gehyra insulensis; Gehyra mutilata; Indian Ocean; Introductions; Island colonisations; Oceania; 42.82. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/301369 |
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| Diallo, Amadou Sekou. |
| In most developing countries, historically, the main strategy for improving the food sector has focused on increasing farm-level production. But in recent years, with the emphasis on value chain analysis, there has been much more focus on subsector studies, demand-driven approaches, and improving vertical coordination to assure product quality to final consumption markets. Millet, sorghum, and later rice were the traditional leading three cereal crops produced and consumed in Mali. Maize has trailed them for more than two decades, but from mid 1990s on, it has been produced and consumed in much larger quantities. Given the potentials of maize, developing and better organizing its subsector has the potential to not only increase revenues for maize farmers,... |
| Tipo: Thesis or Dissertation |
Palavras-chave: Maize; Value chain; Mali; Cereals; Food security; Agricultural marketing; Livestock feed; Industrial organization; Agribusiness; Agricultural and Food Policy; Food Security and Poverty; International Development; Marketing; L11-Production; Pricing; And Market Structure; Size Distribution of Firms; N57-Africa; Oceania; O17-Formal and Informal Sectors; Shadow Economy; Institutional Arrangements; O33-Technological Change: Choices and Consequences; Diffusion Processes; Q12-Micro Analysis of Farm Firms; Farm Households; And Farm Input Markets; Q13-Agricultural Markets and Marketing; Cooperatives; Agribusiness; Q18-Agricultural Policy; Food Policy. |
| Ano: 2011 |
URL: http://purl.umn.edu/101316 |
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