Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae)
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Iheringia. Série Zoologia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000300007 |
Resumo: | 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 variations in maximum and minimum temperatures as a consequence of a global climate warming. Also, the recent introduction of exotic species Zaprionus indianus Gupta, 1970 seems to play a role in this scenario, changing the interactions between native species. |
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Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae)Biological invasioncolonizationDrosophila paulistorumurban ecologyZaprionus indianusDrosophila 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 variations in maximum and minimum temperatures as a consequence of a global climate warming. Also, the recent introduction of exotic species Zaprionus indianus Gupta, 1970 seems to play a role in this scenario, changing the interactions between native species.Museu de Ciências Naturais2008-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000300007Iheringia. Série Zoologia v.98 n.3 2008reponame:Iheringia. Série Zoologiainstname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)instacron:FZB/RS10.1590/S0073-47212008000300007info:eu-repo/semantics/openAccessGarcia,Ana Cristina L.Valiati,Victor HugoGottschalk,Marco S.Rohde,CláudiaValente,Vera Lúcia da S.eng2009-01-26T00:00:00Zoai:scielo:S0073-47212008000300007Revistahttp://www.scielo.br/iszPUBhttps://old.scielo.br/oai/scielo-oai.php||iheringia-zoo@fzb.rs.gov.br1678-47660073-4721opendoar:2009-01-26T00:00Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)false |
dc.title.none.fl_str_mv |
Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae) |
title |
Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae) |
spellingShingle |
Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae) Garcia,Ana Cristina L. Biological invasion colonization Drosophila paulistorum urban ecology Zaprionus indianus |
title_short |
Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae) |
title_full |
Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae) |
title_fullStr |
Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae) |
title_full_unstemmed |
Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae) |
title_sort |
Two decades of colonization of the urban environment of Porto Alegre, southern Brazil, by Drosophila paulistorum (Diptera, Drosophilidae) |
author |
Garcia,Ana Cristina L. |
author_facet |
Garcia,Ana Cristina L. Valiati,Victor Hugo Gottschalk,Marco S. Rohde,Cláudia Valente,Vera Lúcia da S. |
author_role |
author |
author2 |
Valiati,Victor Hugo Gottschalk,Marco S. Rohde,Cláudia Valente,Vera Lúcia da S. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Garcia,Ana Cristina L. Valiati,Victor Hugo Gottschalk,Marco S. Rohde,Cláudia Valente,Vera Lúcia da S. |
dc.subject.por.fl_str_mv |
Biological invasion colonization Drosophila paulistorum urban ecology Zaprionus indianus |
topic |
Biological invasion colonization Drosophila paulistorum urban ecology Zaprionus indianus |
description |
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 variations in maximum and minimum temperatures as a consequence of a global climate warming. Also, the recent introduction of exotic species Zaprionus indianus Gupta, 1970 seems to play a role in this scenario, changing the interactions between native species. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000300007 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000300007 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0073-47212008000300007 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Museu de Ciências Naturais |
publisher.none.fl_str_mv |
Museu de Ciências Naturais |
dc.source.none.fl_str_mv |
Iheringia. Série Zoologia v.98 n.3 2008 reponame:Iheringia. Série Zoologia instname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) instacron:FZB/RS |
instname_str |
Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) |
instacron_str |
FZB/RS |
institution |
FZB/RS |
reponame_str |
Iheringia. Série Zoologia |
collection |
Iheringia. Série Zoologia |
repository.name.fl_str_mv |
Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) |
repository.mail.fl_str_mv |
||iheringia-zoo@fzb.rs.gov.br |
_version_ |
1754203963004026880 |