Since 1996, tsetse (Glossina spp.) control operations, using odor-baited traps, have been carried out in the Luke area of Gurage zone, southwestern Ethiopia. Glossina morsitans submorsitans Newstead was identified as the dominant species in the area, but the presence of Glossina fuscipes Newstead and Glossina pallidipes Austen also was recorded. Here, we refer to the combined number of these three species and report the work undertaken from October 2002 to October 2004 to render the control system more efficient by reducing the number of traps used and maintaining the previously reached levels of tsetse occurrence and trypanosomiasis prevalence. This was done by the design and implementation of an adaptive tsetse population management system. It consists first of an efficient community-participatory monitoring scheme that allowed us to reduce the number of traps used from 216 to 127 (107 monitoring traps and 20 control traps). Geostatistical methods, including kriging and mapping, furthermore allowed identification and monitoring of the spatiotemporal dynamics of patches with increased fly densities, referred to as hot spots. To respond to hot spots, the Luke community was advised and assisted in control trap deployment. Adaptive management was shown to be more efficient than the previously used mass trapping system. In that context, trap numbers could be reduced substantially, at the same time maintaining previously achieved levels of tsetse occurrences and disease prevalence.
The paper deals with tsetse (family Glossinidae) control and aims at improving the methodology for precision targeting interventions in an adaptive pest management system. The spatio-temporal distribution of Glossina morsitans submorsitans Newstead, and Glossina pallidipes Austen, at Ethiopia's Keto pilot site, is analyzed with the spatial analysis by distance indices (SADIE) methodology that focus on clustering and spatial associations between species and between sexes. Both species displayed an aggregated distribution characterised by two main patches in the south and an extended gap in the north. Spatial patterns were positively correlated and stable in most cases, with the exception of the early dry season and the short rainy season when there were differences between the species and sexes. For precision targeting interventions, the presented methods here are more effective than the previously used geostatistical analyses for identifying and delimiting hot spots on maps, measuring shapes and sizes of patches, and discarding areas with low tsetse density. Because of the improved knowledge on hot spot occurrences, the methods allow a better delimitation of the territory for control operations and a more precise computation of the number of the relatively expensive traps used for monitoring and control purposes.
The paper deals with analyses and propositions for adaptive governance of an alpine (A) and an Ethiopian (B) agropastoral system with common-pool pastures. Sustainability can be enhanced by augmenting (i) the ecological and social capitals in relation to costs and (ii) the resilience or adaptive capacity. In (A), a multifunctional agriculture appears to maintain the ecological capital providing many ecosystem services. In (B), the ecological capital can be increased by reversing the trend towards land degradation. In (A), there are several opportunities for reducing the high costs of the social capital. In (B), the institutions should be revised and rules should restrain competitive behavior. (A) and (B) exhibit a high degree of transformability. Many drivers appear to be responsible for the cycling of the agropastoral and higher level systems vulnerable to multiple stressors. Measures are proposed to escape from possible rigidity (A) and poverty (B) traps
In a peri-urban poverty-stricken community in the outskirts of Addis Ababa, Ethiopia, 15 years of development efforts were undertaken by establishing an enterprise, which initially consisted of a horticultural farm and finally was composed of a multifunctional farm and a restaurant with a shop. The enterprise collaborated with BioEconomy Africa, which was charged with administrative, monitoring and facilitation tasks, and provided a training, demonstration and research facility. In the innovation process, the enterprise selected technologies and implemented them within the context of local economic and market conditions. The project benefitted from a flexible allocation of modest funds. This paper assesses the sustainability of the enterprise and the community on the basis of social–ecological system transformability and resilience. The scheme of the Food and Agriculture Organization is used to evaluate the transformability, while resilience is evaluated through self-organization capacity, disturbance absorption capacity, and learning and adaptability. The project period was divided into five Macro-phases. The transformability assessment of the enterprise revealed nonlinear and asynchronous dynamics of environmental sustainability, economic resilience, social well-being and governance that after reaching a minimum attained a maximum at the end of the period under observation. The resilience assessments showed that the self-organization capacity, the disturbance absorption capacity, and learning and adaptability slowly changed to reach a satisfactory level at the end of the observation period. The changes in transformability and resilience profoundly affected the livelihood of the community. The paper demonstrates the important role of agricultural in the development of poverty-stricken peri-urban communities and indicates that innovation processes and the efficiency of facilitation extension model implementation can be enhanced by applying adaptive project execution procedures. It can be concluded that the continuous monitoring and assessments of transformability and resilience are a prerequisite for efficiently moving the socio-ecological system on a smooth road towards a socially acceptable standard of living
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