s:2347:"TI Collective action in the management of water sources in the highlands of Eastern Africa AU Mowo G J AU German, L. AU Wickama J M AU Zenebe A AU Mazengia W AB Participatory constraints and opportunities analysi s conducted in three watersheds in Tanzania and Ethiopia established that water quanti ty and quality were the major constraints to adopting integrated natural resource management (INRM) practices. The African Highlands Initiative (AHI) working with communities in the three watersheds considered management of water sources a s an important entry point for enhanced INRM. Focus group discussion, key informan ts interviews and historical trend analysis were used to obtain information on t he status of water sources in the target watersheds, reasons why most of them have de teriorated, the impact of this on NRM and available opportunities for reversing th is trend. The study established that rehabilitation of water sources was possible t hrough collective action, which in this paper refers to direct actions carried out by groups of people working toward common goals. Further, appropriate policies and rea listic by-laws, planting of water friendly tree species and putting in place an effec tive management structure were necessary for the long term survival of the water s ources. Through AHI interventions, 32 water sources have been rehabilitated in Baga Wa tershed in Tanzania where target communities indicated a reduction on the tim e spent in collecting water from 5 hours to 5 minutes. A health centre in one village in this watershed reported a 55 % reduction in the incidences of waterborne diseases. In Ginchi (Ethiopia) three springs have been rehabilitated and are being used to prote ct the catchments around through enacting of local rules and regulations for their management. In Areka (Ethiopia) a total of 300 households have benefitte d from rehabilitated water sources while reduction in the time for collecting water ha s increased the time available to attending to other developmental activities. It is concluded that collective action in managing water sources is an effective way of addre ssing issues that are beyond the capability of individual households, and throug h this, save time that can be directed to other activities including NRM, apart f rom having a healthier community. ";