SPECIES COMPOSITION AND DISTRIBUTION OF TSETSE FLIES (GLOSSINA SPECIES) IN KAMUKU NATIONAL PARK, BIRNIN GWARI, KADUNA STATE, NIGERIA

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Date
2009-01
Authors
OKOH, KEHINDE EVELYN
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Abstract
A study of the species composition and distribution of tsetse flies was conducted between January to December, 2007 at Kamuku National Park, Birnin Gwari Local Government Area, Kaduna State, using Biconical (Charlier and Laviessiere, 1973) and Nitse traps (Omoogun, 1994). Four traps each were placed for two days along five streams (i.e.Dagara, Kabungu Bungu, Kango Kabungu, Kuzomani and Kurishi) and the trap catches were harvested every day. Five hundred and two tsetse flies caught during the study period, differ significantly between streams. Dagara, Kabungu Bungu, Kango Kabungu, Kuzomani and Kurishi streams had 166 (33.1%), 33 (6.6%), 45 (9%), 41 (8.2%) and 217 (43.2%) flies respectively. Glossina tachinoides and Glossina palpalis were trapped in the area with one species Glossina morsitans submorsitans encountered during the preliminary studies only. Overall, Glossina tachinoides 309 (61.6%) dominated over Glossina palpalis 193 (38.4%), and in Kurishi, (98.2%), Kango Kabungu (97.8%) and Kabungu Bungu (93.9%) streams, while Glossina palpalis catches were more in Dagara (97%) and Kuzomani (61%) streams. Male tsetse flies were significantly higher than females (ratio 2:1), more teneral flies were caught than non-teneral. Tsetse catches were not significantly higher in the dry season than wet season and correlated positively with temperature and negatively with relative humidity. Overall apparent density of 0.1 fly per trap per day obtained in the study and for each species suggest a low density area; 0.2 fly per trap per day were obtained for both season. February had the highest fly density 3.0 while July had the least 0.2. The estimated age of male population was 11 days while females under ovarian category O with an approximate age of 0-10 days dominated. The Mean Hunger Stage (MHS) of 3.6 and 3.5 for Glossina palpalis and Glossina tachinoides, respectively, indicated hungry populations. Insemination rate (93.8%) was high whereas parity rate (25.8%) was low. Overall infection rate of 6.6% was high and infection due to T. vivax (5.2%) dominated followed by T. congolense (0.9%) while T. brucei (0.5%) was lowest. Infection rates were higher in Glossina tachinoides (9.4%) than Glossina palpalis (3.1%). The study has shown that Glossina morsitans submorsitans probably declined as a result of seasonal, vegetation and food factors; also that the high fly density observed in February is a significant month to carry out control. The presence of trypanosome infection in the park may constitute a public health risk to nomadic cattle and ecotourism in the park.
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A THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL, AHMADU BELLO UNIVERSITY, IN PARTIAL FULFILMENT FOR THE AWARD OF M.Sc IN ZOOLOGY DEPARTMENT OF BIOLOGICAL SCIENCE AHMADU BELLO UNIVERSITY, ZARIA JANUARY, 2009
Keywords
SPECIES,, COMPOSITION,, DISTRIBUTION,, TSETSE,, (GLOSSINA SPECIES),, KAMUKU,, NATIONAL,, PARK,, BIRNIN GWARI,, KADUNA STATE, NIGERIA
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