High Frequency and Activity of Glossina spp., Vectors of Human African Trypanosomiasis along a Secondary Forest-Man Made Transect in Makokou (North East-Gabon)
Zinga-Koumba Christophe Roland
Institut de Recherche en Ecologie Tropicale (IRET), BP 13354, Libreville, Gabon.
Sevidzem Silas Lendzele *
Ecole Doctorale des Grandes Ecoles (EDGE), Libreville, Gabon.
Affiri Odzame Joseph-Marie
Université des Sciences et Techniques de MASUKU, BP 941, Franceville, Gabon.
Mounioko Franck
Université des Sciences et Techniques de MASUKU, BP 941, Franceville, Gabon.
Koumba Armel Aubin
Institut de Recherche en Ecologie Tropicale (IRET), BP 13354, Libreville, Gabon.
Rodrigue Mintsa Nguema
Institut de Recherche en Ecologie Tropicale (IRET), BP 13354, Libreville, Gabon.
Acapovi-Yao Genevieve Lydie
Université Félix Houphouët - Boigny, UFR Biosciences 22, BP: 582; Abidjan 22, Côte d’Ivoire.
M’batchi Bertrand
Université des Sciences et Techniques de MASUKU, BP 941, Franceville, Gabon.
Jacques Francois Mavoungou
Institut de Recherche en Ecologie Tropicale (IRET), BP 13354, Libreville, Gabon and Université des Sciences et Techniques de MASUKU, BP 941, Franceville, Gabon.
*Author to whom correspondence should be addressed.
Abstract
The abundance, species diversity and diurnal activity rhythm of hematophagous glossineswere evaluated by trapping using 15 Vavoua traps, during the rainy season (25th Sept-5th Oct to 21st Oct-9th Nov 2018), in two habitats: secondary forest and Anthropised milieu, in the biosphere reserve Ipassa-IRET Makokou in Gabon. In total, 489 glossines were caught with 245 collected from Village-Town site and regrouped under 4 species [G.p.palpalis (32.17%), G. frezili (36.23%), G. nashi (29.57%) and G. f. fuscipes (2.03%)] while 244 were collected from forest and regrouped under 3 species [G.p.palpalis (61.48%), G. nashi (28.69%) and G. frezili (0.84%)]. The abundance of glossines was higher in the Village-Town milieu (2.88 g/t/d) as compared to the forest (2.34 g/t/d) with no statistically significant difference (P>0.05). Glossines showed a unimodal diurnal activity rhythm with peak between 10h-12h in the two milieu and was dominated by females.
Keywords: Hematophagous flies, park, reserve, Vavoua traps, biotope, rainy season, Gabon