Variations in attack behaviours between Glossina palpalis gambiensis and G. tachinoides# in a gallery forest suggest host specificity

Salou Ernest Wendemanegde, Rayaissé Jean-Baptiste, Kaba Dramane, Djohan Vincent, Yoni Wilfrid, Barry Issiaka, Dofini F., Bouyer Jérémy, Solano Philippe. 2016. Variations in attack behaviours between Glossina palpalis gambiensis and G. tachinoides# in a gallery forest suggest host specificity. Medical and Veterinary Entomology, 30 (4) : 403-409.

https://doi.org/10.1111/mve.12187

Article de revue ; Article de recherche ; Article de revue à facteur d'impact

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Quartile : Q1, Sujet : VETERINARY SCIENCES / Quartile : Q1, Sujet : ENTOMOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : Tsetse flies Glossina palpalis gambiensis and G. tachinoides are among the major vectors of sleeping sickness (Human African Trypanosomiasis-HAT) and nagana (African Animal Trypanosomiasis – AAT) in West Africa. Both riparian species occur sympatrically in gallery forests of south west Burkina Faso, but little is known of their interspecies relationships although different authors think there may be some competition between them. The aim of this study was to check if sympatric species have different strategies when approaching a host. A man placed in a sticky cube (1 m × 1 m × 1 m) and a sticky black-blue-black target (1 m × 1 m) were used to capture tsetse along the Comoe river banks in a Latin Square design. The number and the height at which tsetse were caught by each capture method were recorded according to species and sex. Glossina p. gambiensis was more attracted to human bait than to the target, but both species were captured at a significantly higher height on the target compared with the human bait (P < 0.05). No significant difference in heights was found between G. tachinoides and G. p. gambiensis captured on targets (33 and 35 cm, respectively, P > 0.05). However, catches on human bait showed a significant difference in height between G. tachinoides and G. p. gambiensis (22.5 and 30.6 cm, respectively, P < 0.001). This study showed that these sympatric species had different attack behaviours to humans, which is not the case with the target. The implications of these findings are discussed.

Mots-clés géographiques Agrovoc : Burkina Faso

Mots-clés libres : Comportement trophique, Glossine, Tsé-tsé, Burkina Faso

Classification Agris : L72 - Organismes nuisibles des animaux
L20 - Écologie animale
L73 - Maladies des animaux

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

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