NDLI: Colonizing potential of Drosophilidae (Insecta, Diptera) in environments with different grades of urbanization

Content Provider	Springer Nature Link
Author	Ferreira, Luzita B. Tidon, Rosana
Copyright Year	2005
Abstract	Modern environmental destruction through human action has had a big impact on biological diversity. In the Brazilian Cerrado, the second largest South American biome, more than 60% of the native vegetation has been devastated mainly due to anthropic activities. One of the consequences of these activities is the distinct dispersion patterns of endemic and colonizer species in urban environments. In this report we assess the colonizing potential of drosophilids in environments with different grades of urbanization, defined according to the vegetation cover, edifications and demographic density. We performed 12 monthly collections in the city of Brasília, the capital of Brazil, which is located in the core region of the Cerrado. Although we identified 16 species, 90% of the 22,509 captured specimens were Zaprionus indianus, a species recently introduced in Brazil, and the cosmopolitan D. simulans. We captured all the exotic species that occur in the Biome, with the exception of D. kikkawai, but only 8 from the 25 endemic species that occur in natural sites around Brasília. The abundance of four endemic species (D. nebulosa, D. sturtevanti, D. cardini and D. prosaltans) decreased as the grade of urbanization increased. D. immigrans, an exotic species, showed the opposite pattern. We concluded that most endemic species of Drosophilidae are not able to colonize the new environment represented by the city, and that some species of this family may detect not only environmental alteration, by their presence or absence, but also the grade of environmental disturbance, by their relative abundance.
Starting Page	1809
Ending Page	1821
Page Count	13
File Format	PDF
ISSN	09603115
Journal	Biodiversity and Conservation
Volume Number	14
Issue Number	8
e-ISSN	15729710
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biodiversity Bioindicator Cerrado Colonization Drosophila Neotropical region Urban ecology Zaprionus Evolutionary Biology Tree Biology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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