Efficacy of Trapping Methods in the Collection of Eretmapodites (Diptera: Culicidae) Mosquitoes in an Afrotropical Rainforest Region, South western Cameroon

Foncha David Forfuet; Marie Paul Audrey Mayi; Jerome Fru-Cho; Cyril Kowo; Damian Nota Anong; Andongma Esack Fonda; Charlene Djomo; Timoleon Tchuinkam; Katherine K Brisco; Ravinder Sehgal; Anthony John Cornel

doi:10.1093/jme/tjac060

Efficacy of Trapping Methods in the Collection of Eretmapodites (Diptera: Culicidae) Mosquitoes in an Afrotropical Rainforest Region, South western Cameroon

J Med Entomol. 2022 Jul 13;59(4):1394-1403. doi: 10.1093/jme/tjac060.

Affiliations

¹ Department of Microbiology and Parasitology, University of Buea, Cameroon.
² Vector Borne Diseases Laboratory of the Applied Biology and Ecology Research Unit (VBID-URBEA), Department of Animal Biology, Faculty of Sciences of the University of Dschang, Cameroon.
³ Higher Institute of Environmental Science, Department of Environmental Health, PO Box 35460, Yaounde, Cameroon.
⁴ Vector Borne Diseases Laboratory of the Applied Biology and Ecology Research Unit (VBID-URBEA), Department of Animal Biology, Faculty of Sciences of the University of Dschang, Dschang, Cameroon.
⁵ Mosquito Control Research Laboratory, Department of Entomology and Nematology and Vector Genetics Laboratory, Department of Pathology, Microbiology and Immunology, University of California at Davis, Parlier, CA, USA.
⁶ Department of Biology, San Francisco State University, San Francisco, CA, USA.

PMID: 35640028
DOI: 10.1093/jme/tjac060

Abstract

Very little data exist on the biology of an afrotropical rainforest mosquito Eretmapodites (Er.) in a world undergoing dramatic changes due to deforestation. The aim was to assess the efficacy of different trapping methods in the collection of Er. mosquito in forested area. This was a longitudinal study involving collection of mosquitoes for over two years. Multiple collection methods (grouped into two categories), were used; i) net baited and un-baited traps to collect adults, ii) techniques that target immature stages subsequently reared to adults. All males were identified by genitalia dissection. Five thousand seven hundred and four mosquitoes representing 11 genera among which 2,334 Er. were identified. Mosquito abundance was highest in the net traps (n = 1276 (56.4%)) and sweep nets (n = 393(17.4%)) respectively. The abundance was highest in green colored net traps (435(34.09%)) with significant value of χ2= 40.000, P < 0.001 and in pigeons baited traps (473 (37.06%)) with significant value of χ2= 42.000, P = 0.003. The diversity ranges from H' = 2.65; DS = 0.84; SR = 24; ACE = 24.77 in sweep net to H' = 0; DS = 0; SR = 1; ACE = 1 in rock pool among males mosquitoes. While for females, H = 1.14; DS = 0.71; SR = 5; ACE = 5.16, in sweep net to H = 0; DS = 0; SR = 1; ACE = 1 in rock pool, tarpaulin, resting cage. Net traps, bamboo pot, and sweep netting are efficient in collecting high abundance of forest mosquitoes in the Talanagaye rainforest.

Keywords: Eretmapodites; Talangaye rainforest; mosquito; species abundance; trapping method.

Publication types

Research Support, U.S. Gov't, Non-P.H.S.
Research Support, Non-U.S. Gov't

MeSH terms

Animals
Cameroon
Culicidae*
Female
Forests
Longitudinal Studies
Male
Rainforest