Integration of Tsetse Survey Data and Agro Ecological Characteristics From Remotely Sensed and Field Observation a Geographic Information System Southern Rift Valley of Ethiopia
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Date
2001-11
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AAU
Abstract
A tsetse fl y survey was carried out in over I00 km ~ of the study site of the Southern Rift Valley of Ethiopia Tsetse Eradication Project (SRVETEP) with the objective of imegrating the remotely sensed data. ground verified agro-ecoiogical characteristics and tsetse survey data in a geographic infonnation system (GIS). Field data collection on tsetse fly distribution and abundance and ground vegetation type observation was conduc ted in two seasons: the dry season survey (March) and the wet season survey(]une and first week of July), Seventy-eight NGU traps baited with ace tone and three week old cow urine was used for catching tsetse during each season. Traps were deployed in a transect in a selected Ix I Km. UTM (Universal Transverse Mercater) grid square . .-\ hand held receiver GPS (Garmin -1.8) was used for geo-referencing and SPS( elevation measurement ot the trappmg Sites. Remotely sensed Lands lt TM of the area taken in 1994. was anulysed . The digital image processing employed the supervised classificatio n procedure with the m;:txlmum likelihood decision rule, Tsetse survey data. ground obser\'ed vegetation lype and the procesed remotely sensed datl were integrated into the GIS database in Arcvie3 I various enviro nmental features like roads, rivers, senlement, Contours and Lakes In the study area were digitised and incorporated Into the GIS databse.
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Field data collection on tsetse fly distribution and abundance and ground vegetation type observation was conduc ted in two seasons: the dry season survey (.\larch) and the wet season survey(]une and first week of July)