Wildlife and livestock contribute significantly to the economies of most sub-Saharan African countries. The wildlife sector in Africa is worth US $7 billion with an annual growth rate of 5%. It is thus a major contributor to the continental gross domestic product (GDP). In East and southern African countries, the consumptive and nonconsumptive utilization of wildlife is a significant foreign ex...

Not only does livestock makes an important contribution to rural incomes and export earnings in the Sahel, it is also kept as insurance against weather risk. Fluctuations in livestock prices can therefore trigger food entitlement failures. Using monthly price data from Niger, we show that livestock prices respond to droughts and pasture availability. They are also exposed to aggregate shifts in...

BACKGROUND Up till now, nomadic communities in Africa have been the primary focus of ethnoveterinary research. Although mainly arable and/or mixed arable/pastoral farmers, Ameru of central Kenya are known to have a rich history of ethnoveterinary knowledge. Their collective and accumulative ethnoveterinary knowledge (EVK) is likely to be just as rich and worth documenting. The aim of the study ...

Rift Valley Fever (RVF) is an arthropod borne viral disease affecting livestock (cattle, sheep, goats and camels), wildlife and humans caused by Phlebovirus. The disease occurs in periodic cycles of 4-15 years associated with flooding from unusually high precipitations in many flood-prone habitats. Aedes and Culex spp and other mosquito species are important epidemic vectors. Because of poor li...

The paper describes the idea and the structure of a mobile information system under development in the HIPS project that allows for supporting nomadic activities. Nomadic activities are a widespread class of human activities. Many activities are distributed in time, space and social groups. In contrast to print media till now electronic information and communication media did not support nomadi...

38 Computer The Cooler the Better: New Directions in the Nomadic Age T hanks to rapid progress in microelectronics technology, a new, nomadic lifestyle has become widespread these days. People, regardless of location, enjoy greater connectivity through communication networks and intelligent electronic terminals. This nomadic lifestyle will become even more common as technology frees people from...

In emerging ubiquitous computing, related nomadic users often perform similar tasks and share the same computing infrastructure. This means that security of the shared resources is of prime importance. Frequent delegation of tasks among users must be anticipated as most nomadic environments are hectic and very dynamic. A delegation mechanism with a slightly complicated user interface will not o...