This publication was also sponsored by the European Commission (Health and Consumer Protection Directorate-General), the Veterinary and Agrochemical Research Centre, Brussels The Institute of Tropical Medicine, Antwerp the Notre-Dame de la Paix University Faculties of Namur, the Federal Public Service of Public Health, Food Chain Security and Environment, Brussels and the Federal Agency for the...

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Proposing a suitable soil quality index for natural, secondary and rehabilitated tropical forests in Malaysia A. Arifin*, D. S. Karam, J. Shamshuddin, N. M. Majid, O. Radziah, A. H. Hazandy and I. Zahari Department of Forest Production, Faculty of Forestry, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. Laboratory of Sustainable Bioresource Management, Institute of Tropical F...

Tropical biodiversity and associated ecosystem functions have become heavily eroded through habitat loss. Animal-mediated pollination is required in more than 94% of higher tropical plant species and 75% of the world's leading food crops, but it remains unclear if corridors avert deforestation-driven pollination breakdown in fragmented tropical landscapes. Here, we used manipulative resource ex...

Despite recent progress in understanding mechanisms of tree species coexistence in tropical forests, a simple explanation for the even more extensive diversity of insects feeding on these plants has been missing. We compared folivorous insects from temperate and tropical trees to test the hypothesis that herbivore species coexistence in more diverse communities could reflect narrow host specifi...

" tropical" diseases under the following headings:? (l)due to protozoa; (2) due to bacteria; (3) due to filterable viroses ; (4) food deficiency diseases ; (5) helminthic infections; (6) Infectious granulomata; (7) skin diseases; and (8) tropical diseases of disputed nature or minor importance among which are Peruvian Wart; Oroya fever; heatstroke and heat prostration; river fever; spotted feve...

Although tropical forests cover only 6% of Earth's arable surface, they account for nearly 50% of all known species (National Research Council, 1992). Despite this diversity, these systems are increasingly threatened, as exemplified by a recent Food and Agriculture Organization report (FAa, 1999) which indicates that tropical countries are losing 127,300 km2 of forest annually; this does not co...

As a creeping process, salinisation represents a significant long-term environmental risk in coastal and deltaic environments. Excess soil salinity may exacerbate existing risks of food insecurity in densely populated tropical deltas, which is likely to have a negative effect on human and ecological sustainability of these regions and beyond. This study focuses on the coastal regions of the Gan...

Quantification of key pathways sustaining ecosystem function is critical for underpinning informed decisions on development approvals, zoning and offsets, ecosystem restoration and for meaningful environmental assessments and monitoring. To develop a more quantitative understanding of the importance and variation in food webs and nutrient flows in tropical estuaries, we investigated the spatio-...

1. The extent to which plant-herbivore feeding interactions are specialized is key to understand the processes maintaining the diversity of both tropical forest plants and their insect herbivores. However, studies documenting the full complexity of tropical plant-herbivore food webs are lacking. 2. We describe a complex, species-rich plant-herbivore food web for lowland rain forest in Papua New...