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City-dwellers and country folks: lack of population differentiation along an urban-rural gradient in the mosquito culex pipiens (Diptera: culicidae)

Honnen, Ann-Christin and Monaghan, Michael T. and Sharakhov, Igor. (2017) City-dwellers and country folks: lack of population differentiation along an urban-rural gradient in the mosquito culex pipiens (Diptera: culicidae). Journal of insect science , 17 (5). p. 107.

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Official URL: http://edoc.unibas.ch/58301/

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Abstract

Mosquitoes (Diptera, Culicidae) occur in natural, urban, and peri-urban areas throughout the globe. Although the characteristics of urban and peri-urban habitats differ from those of natural habitats in many ways (e.g., fragmentation, pollution, noise, and light), few studies have examined the population connectivity of mosquitoes in urban areas. To obtain an overview of the species composition, we sampled mosquitoes from 23 sites in and around the city of Berlin, Germany. Of 23 species, five occurred in urban, 10 in peri-urban, and 20 in rural areas. Culex pipiens Linnaeus (Diptera: Culicidae) was the most common species collected (75% of all individuals) and occurred in all habitats. Hence this species was selected to be analysed at 10 microsatellite markers. There was no significant differentiation (FST = 0.016, P = 0.9) or isolation by distance (P = 0.06) among Cx. pipiens populations along an urban-rural gradient. The only significant differences detected were between Cx. pipiens and a laboratory population of Cx. pipiens f. molestus (pairwise FST = 0.114-0.148, P ≤ 0.001 in all comparisons), suggesting that the markers chosen were suitable for the identification of population differentiation. Our results indicate that Cx. pipiens gene flow is widespread within and among urban, peri-urban, and rural areas and that urban habitat does not necessarily impede or enhance gene flow among these populations.
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH)
UniBasel Contributors:Honnen, Ann-Christin
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:Entomological Society of America
ISSN:1536-2442
Note:Publication type according to Uni Basel Research Database: Journal article
Identification Number:
Last Modified:02 Feb 2018 09:52
Deposited On:02 Feb 2018 09:52

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