Mosquito community composition and abundance at contrasting sites in northern South Africa, 2014–2017

Journal of vector ecology: journal of the Society for Vector Ecology

article

Todd Johnson¹  Leo Braack³  Milehna Guarido²  Marietjie Venter²  Antonio Paulo Gouveia Almeida⁴ 

[1] Department of Biological Sciences, Department of Medical Virology, Copperbelt University;Centre for Viral Zoonoses, Faculty of Health Sciences, University of Pretoria;Mahidol University;UP Institute for Sustainable Malaria Control, Faculty of Health Sciences, University of Pretoria

关键词: Mosquitoes;    landscape;    distribution;    sampling;    diversity;    species richness.;   

DOI  :  10.1111/jvec.12378

来源: Society for Vector Ecology

【 摘 要 】

Most data on species associations and vector potential of mosquitoes in relation to arboviral infections in South Africa date back from the 1940s to late 1990s. Contextual information crucial for disease risk management and control, such as the sampling effort, diversity, abundance, and distribution of mosquitoes in large parts of South Africa still remains limited. Adult mosquitoes were collected routinely from two horse farms in Gauteng Province; two wildlife reserves in Limpopo Province, at Orpen Gate in Kruger National Park (KNP) and Mnisi Area in Mpumalanga Province between 2014–2017, using carbon dioxide-baited light and tent traps. Mosquito diversity and richness are greater in untransformed natural and mixed rural settings. In untransformed wilderness areas, the most dominant species were Culex poicilipes, Anopheles coustani, and Aedes mcintoshi, while in mixed rural settings such as the Mnisi area, the two most abundant species were Cx. poicilipes and Mansonia uniformis. However, in peri-urban areas, Cx. theileri, Cx. univittatus, and Cx. pipiens sensu lato were the most dominant. Aedes aegypti, Ae. mcintoshi, Ae. metallicus, Ae. vittatus, Cx. pipiens s.l., Cx. theileri, and Cx. univittatus had the widest geographical distribution in northern South Africa. Also collected were Anopheles arabiensis and An. vaneedeni, both known malaria vectors in South Africa. Arbovirus surveillance and vector control programs should be augmented in mixed rural and peri-urban areas where the risk for mosquito-borne disease transmission to humans and domestic stock is greater.

【 授权许可】

Unknown