The distribution of two major malaria vectors, Anopheles gambiae and Anopheles arabiensis, in Nigeria
Open accessAbstract
The distribution of Anopheles gambiae and An. arabiensis across the ecological zones of Nigeria (arid savanna in the north gradually turns into humid forest in the south) was investigated. Results of the present study were compared to the distributions determined from samples of indoor-resting females reported by an earlier study over 20 years ago. Larvae were sampled in the rainy seasons of 1997 and 1999 from 24 localities, 10 of which were sampled in both years. Specimens were identified by the polymerase chain reaction method. Results showed that species composition changed significantly among the 10 localities in both years (chi2=13.62, P = 0.0002), but this change was significant in only four of the 10 localities. The identity of the prevalent (more abundant) species changed between 1997 and 1999 in only three of 10 localities. An. arabiensis was prevalent in several localities in the southern Guinea savanna, an area where it was virtually absent over 20 years ago. The data suggest that An. arabiensis has extend its range, although differences in sampling technique (larval sampling versus adult collection) can not be ruled out as a possible explanation.
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Past and recent surveys in Delta and Anambra States have failed to detect An. arabiensis in field campaigns, except on very few occasions.
“except on very few occasions [49–51], past and recent surveys in Delta and Anambra States have failed to detect An. arabiensis in field campaigns [14, 17, 52].”
From Sibling species of the major malaria vector Anopheles gambiae display divergent preferences for aquatic breeding sites in southern Nigeria (2024) · cites this paper as [49]
Cites
The Anopheles gambiae complex: a new species from Ethiopia
Hunt, R. H., Coetzee, M., & Fettene, M. (1998) · Transactions of the Royal Society of Tropical Medicine and Hygiene · doi:10.1016/s0035-9203(98)90761-1 · Cited by 204 · see citing works
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Sinka, M. E., Bangs, M. J., Manguin, S., Coetzee, M., Mbogo, C. M., Hemingway, J., Patil, A. P., Temperley, W. H., Gething, P. W., Kabaria, C. W., et al. (2010) · Parasites & Vectors · doi:10.1186/1756-3305-3-117 · Cited by 761 · see citing works
Mahande, A., Mosha, F., Mahande, J., & Kweka, E. (2007) · Malaria Journal · doi:10.1186/1475-2875-6-100 · Cited by 211 · see citing works
Ebhodaghe, F. I., Sanchez-Vargas, I., Isaac, C., Foy, B. D., & Hemming-Schroeder, E. (2024) · Malaria Journal · doi:10.1186/s12936-024-04871-9 · Cited by 15 · see citing works
“Secondly, except on very few occasions [49–51], past and recent surveys in Delta and Anambra States have failed to detect An. arabiensis in field campaigns [14, 17, 52].”
Background
- Authors
- Onyabe, D. Y., & Conn, J. E.
- Affiliations
- University of Vermont (US)
- ORCID
- Conn, Jan E
- Venue
- Memórias do Instituto Oswaldo Cruz
- Publisher
- FapUNIFESP (SciELO)
- Published
- 2001-11
- Volume
- 96
- Issue
- 8
- Pages
- 1081-1084
- ISSN
- 0074-0276 (ISSN-L)
- OpenAlex
- W2028764621
- Cited by
- 63
- References
- 1
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 9 · 2023: 4 · 2022: 3 · 2021: 5 · 2020: 4 · 2019: 4 · 2018: 1 · 2017: 1 · 2015: 1 · 2014: 4 · 2013: 2 · 2012: 6
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by-nc
- Locations
- Memórias do Instituto Oswaldo Cruz (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
- Americanae (AECID Library) (submittedVersion, other-oa)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- TSpace (University of Toronto) (submittedVersion)
- Funders
- National Science Foundation
- National Institutes of Health (5r29ai040116-05)
- National Institute of Allergy and Infectious Diseases (AI-40116)
- Office of Experimental Program to Stimulate Competitive Research
- Topics
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Malaria Research and Control
- Life Sciences › Agricultural and Biological Sciences › Ecology, Evolution, Behavior and Systematics › Diptera species taxonomy and behavior
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Mosquito-borne diseases and control
- Keywords
- Anopheles gambiae, Anopheles arabiensis, malaria vectors, vector distribution, range expansion, ecoregions, Guinea savanna, larval sampling, species composition, Nigeria
- MeSH terms
- Animals, Anopheles, Demography, DNA, Female, Insect Vectors, Male, Nigeria, Chi-Square Distribution, Polymerase Chain Reaction
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