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| Garcia,Ana Cristina L.; Valiati,Victor Hugo; Gottschalk,Marco S.; Rohde,Cláudia; Valente,Vera Lúcia da S.. |
| Drosophila paulistorum Dobzhansky & Pavan, 1949 had initially been considered absent in anthropogenically disturbed environments, but in 1985 the detection of the species in Porto Alegre city, southern Brazil, suggested its potential to colonize new habitats and laid the foundations for ecologic studies on this species' populations. This study followed the variations in D. paulistorum populations in this town almost 20 years after its first local record. Drosophilid specimens were collected in sites with different urbanization grades and the results point to the expressive decline in D. paulistorum populations in Porto Alegre. This decline may be linked to urban growth and to naturally driven population decline, as imputed to climatic changes like... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biological invasion; Colonization; Drosophila paulistorum; Urban ecology; Zaprionus indianus. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000300007 |
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