{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,30]],"date-time":"2023-10-30T23:40:20Z","timestamp":1698709220402},"reference-count":28,"publisher":"Springer Science and Business Media LLC","issue":"1","content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Parasites Vectors"],"published-print":{"date-parts":[[2009,12]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Background<\/jats:title>\n            <jats:p>\n              <jats:italic>Simulum damnosum<\/jats:italic> Theobald <jats:italic>sensu lato<\/jats:italic> (<jats:italic>s.l<\/jats:italic>.) is the vector of the parasitic filarial worm <jats:italic>Onchocerca volvulus<\/jats:italic> Leuckart which causes onchocerciasis. In order to understand the vector population dynamics, a preliminary 12 months entomological evaluation was carried out at Abeokuta, the Southwest Zone of Nigeria, an onchocerciasis endemic area, where vector control has not been previously initiated. <jats:italic>S.damnosum s.l<\/jats:italic>. flies were caught on human attractants between 700 to1800 hours each day, for 4 days each month, from August 2007 to July 2008. The flies caught were classified as either forest-dwelling or savanna-dwelling groups based on the colour of certain morphological characters. Climatic data such as rainfall, humidity and temperature were also collected monthly during the period of survey.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>A total of 1,139 flies were caught, 596 (52.33%) were forest-dwelling group while 543 (47.67%) were savanna-dwelling group of <jats:italic>S. damnosum s.l<\/jats:italic>. The highest percentage of forest-dwelling group was caught in the month of August 2007 (78.06%) and the least percentage of forest-dwelling groups was caught in November 2007 (8.14%). The highest percentage of savannah-dwelling group was caught in the month of November 2007 (91.86%) and the least percentage of savannah-dwelling group was caught in August 2007 (21.94%). There was no significant difference between the population of forest and savannah-dwelling groups of the fly when the means of the fly population were compared (<jats:italic>P<\/jats:italic> = 0.830). Spearman correlation analysis showed a significant relationship between monthly fly population with monthly average rainfall (<jats:italic>r<\/jats:italic> = 0.550, n = 12, <jats:italic>P<\/jats:italic> = 0.033), but no significant relationship with monthly average temperature (<jats:italic>r<\/jats:italic> = 0.291, <jats:italic>n<\/jats:italic> = 12, <jats:italic>P<\/jats:italic> = 0.179). There was also a significant relationship between monthly fly population and monthly average relative humidity (<jats:italic>r<\/jats:italic> = 0.783, <jats:italic>n<\/jats:italic> = 12 <jats:italic>P<\/jats:italic> = 0.001). There was no significant correlation between the population of forest-dwelling group of <jats:italic>S. damnosum s.l<\/jats:italic>. and monthly average rainfall (<jats:italic>r<\/jats:italic> = 0.466, <jats:italic>n<\/jats:italic> = 12, <jats:italic>P<\/jats:italic> = 0.064) and monthly average temperature (<jats:italic>r<\/jats:italic> = 0.375, n = 12, <jats:italic>P<\/jats:italic> = 0.115) but there was significant correlation with monthly average relative humidity (<jats:italic>r<\/jats:italic> = 0.69, <jats:italic>n<\/jats:italic> = 12, <jats:italic>P<\/jats:italic> = 0.006). There was significant correlation between savannah-dwelling group and monthly average rainfall (<jats:italic>r<\/jats:italic> = 0.547, <jats:italic>n<\/jats:italic> = 12, <jats:italic>P<\/jats:italic> = 0.033), and monthly average relative humidity (<jats:italic>r<\/jats:italic> = 0.504, <jats:italic>n<\/jats:italic> = 12, <jats:italic>P<\/jats:italic> = 0.047) but there was no significant correlation with monthly average temperature (<jats:italic>r<\/jats:italic> = 0.142, <jats:italic>n<\/jats:italic> = 12, <jats:italic>P<\/jats:italic> = 0.329)<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>The results from this study showed that both the forest and the savannah dwelling groups of <jats:italic>S. damnosum s.l<\/jats:italic>. were caught biting in the study area. This could have implications on the transmission and epidemiology of human onchocerciasis if not monitored.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1186\/1756-3305-2-55","type":"journal-article","created":{"date-parts":[[2009,11,17]],"date-time":"2009-11-17T07:17:49Z","timestamp":1258442269000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Preliminary study on temporal variations in biting activity of Simulium damnosum s.l. in Abeokuta North LGA, Ogun State Nigeria"],"prefix":"10.1186","volume":"2","author":[{"given":"Akinola S","family":"Oluwole","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Uwem F","family":"Ekpo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chiedu F","family":"Mafiana","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Clement O","family":"Adeofun","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olufunmilayo A","family":"Idowu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2009,11,16]]},"reference":[{"key":"103_CR1","first-page":"1813","volume":"5","author":"OO Ibeh","year":"2006","unstructured":"Ibeh OO, Nwoke BEB, Adegoke JA, Mafuyai HB: Cytospecies identifications of vectors of human onchocerciasis in south eastern Nigeria. 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