The Mosquitos (Diptera: Culicidae) of the Seychelles

Mattingly, P. F.; Brown, E. S.

doi:10.1017/s0007485300030777

Cited by 26 publications

(55 citation statements)

References 30 publications

(23 reference statements)

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“…This level of endemism is accordant to the geological history of these two island types, with the granitic islands being notably older than the coralline islands. Amongst the 21 resident mosquito species, this figure of 29% endemicity (6/21) for relatively remote archipelagos and islands may seem low and might support the widely held view that mosquitoes are a group especially prone to human introduction [25,42,59]. There are currently four species suspected to have been introduced to the Seychelles ( Ae.…”

Section: Discussionmentioning

confidence: 72%

“…It was then regularly observed on the granitic islands and on the coralline islands of Bird, Denis and Platte [15,21,24,25,27]. Its presence has not been reported on the most southern coralline islands of the Aldabra group.…”

Section: Resultsmentioning

confidence: 99%

“…fatigans ) from the granitic Seychelles starting in the 20 th century [22]. Its apparent rarity, except in the immediate vicinity of the Victoria port, suggests that it is a human introduction [25]. In 1952, this species was also present on Ile Platte [25].…”

Section: Resultsmentioning

confidence: 99%

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The mosquitoes (Diptera: Culidae) of Seychelles: taxonomy, ecology, vectorial importance, and identification keys

et al. 2012

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BackgroundDuring recent periods, the islands of the Republic of Seychelles experienced many diseases such as dengue, chikungunya, Bancroft’s filaria and malaria. Mosquitoes transmit the agents that cause these diseases. Published information on mosquitoes in the Seychelles is notably dispersed in the literature. The maximum number of species obtained on a single field survey does not exceed 14 species.MethodsWe performed a comprehensive bibliographic review using mosquito and Seychelles as the key words, as well as conducted a mosquito field survey for larval and adult stages during the rainy season in December 2008. Sixteen sites were sampled on four granitic islands (Mahé, Praslin, La Digue and Aride) and six sites on coralline atolls in the extreme southwest of the country (Aldabra group).ResultsWe found published references to 21 mosquito species identified at least on one occasion in the Seychelles. Our collections comprised 18 species of mosquitoes, all of them from the subfamily Culicinae; no Anophelinae was found. We also confirm that Aedes seychellensis is a junior synonym of Ae. (Aedimorphus) albocephalus. The first records for Culex antennatus and Cx. sunyaniensis are presented from the country, specifically from Aldabra and Praslin, respectively. Based on a comparison of the taxa occurring on the granitic versus coralline islands, only three species, Ae. albocephalus, Cx. scottii and Cx. simpsoni are shared. Aedes albopictus appeared to exclude largely Ae. aegypti on the granitic islands; however, Ae. aegypti was common on Aldabra, where Ae. albopictus has not been recorded. The notable aggressiveness of mosquitoes towards humans on coralline islands was mainly due to two species, the females of which are difficult to distinguish: Ae. fryeri and Ae. (Aedimorphus) sp. A. The number of mosquito species collected at least once in the Seychelles is now 22, among which five species (Ae. (Adm) sp. A, Cx. stellatus, Uranotaenia browni. Ur. nepenthes and Ur. pandani) and one subspecies (Ae. vigilax vansomerenae) are considered as endemic. Two illustrated identification keys, one for adult females and the other for larval stages, are presented.ConclusionsThe knowledge of the culicidian fauna in the Seychelles has been notably updated. The number of mosquito species is relatively large with regards to land surface and distances to continental Africa, although the anophelines are totally lacking. The complex natural history of mosquitoes in the Seychelles provides examples of both vicariance- and dispersal-mediated divergences. They present superb examples for theoretical and applied island biology.

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Section: Discussionmentioning

confidence: 72%

Section: Resultsmentioning

confidence: 99%

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The mosquitoes (Diptera: Culidae) of Seychelles: taxonomy, ecology, vectorial importance, and identification keys

et al. 2012

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“…In these islands, C. p. quinquefasciatus was relatively uncommon even as recently as 25 years ago, and was concentrated round Port Victoria, the capital (MATTINGLY and BROWN, 1955). Some 15 years later, LAMBRECHT (1971) found it was abundant throughout the Archipelago, where it had colonized not only its classical larval habitats but other less suitable types as well.…”

Section: Distributionmentioning

confidence: 99%

Biology and control of Culex pipiens quinquefasciatus Say, 1823 (Diptera, Culicidae) with special reference to Africa

Subra

1981

Int. J. Trop. Insect Sci.

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This paper is an attempt to synthesize information available on C. p. quinquefasciatus in Africa. The latter is presently found in most urban areas of the African continent and in rural settlements which show some trends towards urbanization. In East Africa, and the islands of the Indian Ocean, C. p. quinquefasciatus is one of the major natural vectors of Wuchereria bancrofti. In addition it can also transmit, under laboratory conditions, some other pathogenic agents.Preimaginal forms develop in different kinds of man-made breeding-places, especially those containing polluted water. The situation in each African region is reviewed in detail.Female behaviour during the different phases of the gonotrophic cycle is analysed, together with population dynamics.Control methods by synthetic insecticides are discussed in relation to resistance problems and the characteristics of the breeding sites. Other control methods based on the use of growth regulators, genetic manipulation, biological agents (parasites and predators) and environmental management have been investigated as well. Most of them cannot be easily applied or are not yet applicable for control operations.

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“…In swamps with virgin ot cut papyrus areas; ---; 320 275 Mattingly & Brown 1955 pe Release to CFSTE is authorized.…”

Section: Grassymentioning

confidence: 99%

Arthropods of Medical Importance in Africa. Part 1. Introductory and Explanatory Material Data on Mosquitoes

Travis¹,

Mendoza²,

Labadan³

1967

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The Mosquitos (Diptera: Culicidae) of the Seychelles

Cited by 26 publications

References 30 publications

The mosquitoes (Diptera: Culidae) of Seychelles: taxonomy, ecology, vectorial importance, and identification keys

The mosquitoes (Diptera: Culidae) of Seychelles: taxonomy, ecology, vectorial importance, and identification keys

Biology and control of Culex pipiens quinquefasciatus Say, 1823 (Diptera, Culicidae) with special reference to Africa

Arthropods of Medical Importance in Africa. Part 1. Introductory and Explanatory Material Data on Mosquitoes

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