DHS Working Papers No. 88
education, wealth, mobility, employment, and media exposure
DHS Working Papers No. 91
DHS Analytical Studies No. 57
DHS Analytical Studies No. 40
The WHO Global Polio Eradication Initiative (GPEI)’s new Polio Eradication and Endgame Strategic Plan targets the end of all kinds of polioviruses by 2018, including the wild and rare vaccine-related strains which cause paralysis among thousands of children worldwide. The plan is focused on develo...ping and deploying a shot version of the anti-polio vaccine to replace the current oral variant, which is known to occasionally cause the same disease that it is supposed to prevent. This document is intended for the use of individuals and organizations involved in polio eradication efforts
more
DHS ANALYTICAL STUDIES 56
Bangladesh, Cambodia, India, Indonesia, Nepal, Pakistan, Philippines
DHS Working Papers No. 89
DHS Comparative Reports No. 41
Phil. Trans. R. Soc. B (2010) 365, 2959–2971; doi:10.1098/rstb.2010.0143.
Agricultural ecosystems provide humans with food, forage, bioenergy and pharmaceuticals and are essential to human wellbeing. These systems rely on ecosystem services provided by natural ecosystems, including pollination, b...iological pest control, maintenance of soil structure and fertility, nutrient cycling and hydrological services. Preliminary assessments indicate that the value of these ecosystem services to agriculture is enormous and often underappreciated. Agroecosystems also produce a variety of ecosystem services, such as regulation of soil and water quality, carbon sequestration, support for biodiversity and cultural services. Depending on management practices, agriculture can also be the source of numerous disservices, including loss of wildlife habitat, nutrient runoff, sedimentation of waterways, greenhouse gas emissions, and pesticide poisoning of humans and non-target species. The tradeoffs that may occur between provisioning services and other ecosystem services and disservices should be evaluated in terms of spatial scale, temporal scale and reversibility. As more effective methods for valuing ecosystem services become available, the potential for ‘win–win’ scenarios increases. Under all scenarios, appropriate agricultural management practices are critical to realizing the benefits of ecosystem services and reducing disservices from agricultural activities.
more