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Hokkaido University Collection of Scholarly and Academic Papers >
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Climatic variability and landscape heterogeneity impact urban mosquito diversity and vector abundance and infection
| Title: | Climatic variability and landscape heterogeneity impact urban mosquito diversity and vector abundance and infection |
| Authors: | Chaves, Luis Fernando Browse this author →ORCID | | Hamer, Gabriel L. Browse this author | | Walker, Edward D. Browse this author | | Brown, William M. Browse this author | | Ruiz, Marilyn O. Browse this author | | Kitron, Uriel D. Browse this author |
| Keywords: | Chicago | | entomological risk | | Filariasis | | habitat gradient | | metacommunity | | nuisance | | richness | | Rift Valley fever | | Schmalhausen’s law | | West Nile virus |
| Issue Date: | 23-Jun-2011 |
| Journal Title: | Ecosphere |
| Volume: | 2 |
| Issue: | 6 |
| Start Page: | art70 |
| Publisher DOI: | 10.1890/ES11-00088.1 |
| Abstract: | Urban habitat heterogeneity can modify interactions across species and lead to spatially fine grained differences in b-diversity patterns and their associated ecosystem services. Here, we study the impacts of landscape heterogeneity and climatic variability on: (1) the richness and diversity patterns of mosquitoes (Diptera: Culicidae) and (2) the abundance and West Nile virus infection rate of the house mosquito, Culex pipiens, in Chicago, USA. We conducted a four year long study (2005–2008) in 8 sites that captured a gradient of urban heterogeneities. We found a total of 19 mosquito species, a representative sample of mosquito species richness in the area, according to both model estimation (Chao2 +- S.E. = 20.50 +- 2.29) and faunal records for Chicago. We found that heterogeneity in the landscape was the best predictor of both mosquito species richness and diversity, with the most heterogeneous landscapes harboring the largest number of species. In general there were no changes in species richness over the years that could be associated with weather patterns and climatic variability (WPCV). In contrast, changes in diversity were associated with WPCV. Our results also showed that WPCV had major impacts on house mosquito abundance and West Nile virus mosquito infection rate (MIR) patterns. Although MIR was independent of mosquito diversity, it was associated with overall mosquito abundance, which had a convex association with species richness (i.e., abundance increases to a point after which it decreases as function of species richness). Finally, our results highlight the importance of considering dominant vector species as part of a community of vectors, whose biodiversity patterns can directly or indirectly impact the risk of infectious disease transmission. |
| Rights: | Copyright by the Ecological Society of America |
| Type: | article |
| URI: | http://hdl.handle.net/2115/48541 |
| Appears in Collections: | 環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: Luis Fernando CHAVES
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