Warming modifies trophic cascades and eutrophication in experimental freshwater communities

Detalhes bibliográficos
Autor(a) principal: Pereira, Ticiana S. A. Carvalho
Data de Publicação: 2012
Outros Autores: Kratina, Pavel, Greig, Hamish S., Thompson, Patrick L., Shurin, Jonathan B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/15767
Resumo: p. 1421–1430
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spelling Pereira, Ticiana S. A. CarvalhoKratina, PavelGreig, Hamish S.Thompson, Patrick L.Shurin, Jonathan B.Pereira, Ticiana S. A. CarvalhoKratina, PavelGreig, Hamish S.Thompson, Patrick L.Shurin, Jonathan B.2014-09-03T16:45:05Z2014-09-03T16:45:05Z20120012-9658http://repositorio.ufba.br/ri/handle/ri/15767v. 93, n. 6p. 1421–1430Climate warming is occurring in concert with other anthropogenic changes to ecosystems. However, it is unknown whether and how warming alters the importance of top-down vs. bottom-up control over community productivity and variability. We performed a 16-month factorial experimental manipulation of warming, nutrient enrichment, and predator presence in replicated freshwater pond mesocosms to test their independent and interactive impacts. Warming strengthened trophic cascades from fish to primary producers, and it decreased the impact of eutrophication on the mean and temporal variation of phytoplankton biomass. These impacts varied seasonally, with higher temperatures leading to stronger trophic cascades in winter and weaker algae blooms under eutrophication in summer. Our results suggest that higher temperatures may shift the control of primary production in freshwater ponds toward stronger top-down and weaker bottom-up effects. The dampened temporal variability of algal biomass under eutrophication at higher temperatures suggests that warming may stabilize some ecosystem processes.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2014-08-05T13:13:43Z No. of bitstreams: 1 Ticiana S. A. Carvalho Pereira.pdf: 1736081 bytes, checksum: b2d725e337093448b8851582d1f36513 (MD5)Approved for entry into archive by Alda Lima da Silva (sivalda@ufba.br) on 2014-09-03T16:45:05Z (GMT) No. of bitstreams: 1 Ticiana S. A. Carvalho Pereira.pdf: 1736081 bytes, checksum: b2d725e337093448b8851582d1f36513 (MD5)Made available in DSpace on 2014-09-03T16:45:05Z (GMT). No. of bitstreams: 1 Ticiana S. A. Carvalho Pereira.pdf: 1736081 bytes, checksum: b2d725e337093448b8851582d1f36513 (MD5) Previous issue date: 2012http://dx.doi.org.ez10.periodicos.capes.gov.br/10.1890/11-1595.1reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAClimate warmingCommunity structureFood websIndirect and direct temperature effectsMetabolic ratesPress perturbationsProductivityTemporal variabilityTrophic interactionsWarming modifies trophic cascades and eutrophication in experimental freshwater communitiesEcologyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrasilinfo:eu-repo/semantics/openAccessengORIGINALTiciana S. A. Carvalho Pereira.pdfTiciana S. A. 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dc.title.pt_BR.fl_str_mv Warming modifies trophic cascades and eutrophication in experimental freshwater communities
dc.title.alternative.pt_BR.fl_str_mv Ecology
title Warming modifies trophic cascades and eutrophication in experimental freshwater communities
spellingShingle Warming modifies trophic cascades and eutrophication in experimental freshwater communities
Pereira, Ticiana S. A. Carvalho
Climate warming
Community structure
Food webs
Indirect and direct temperature effects
Metabolic rates
Press perturbations
Productivity
Temporal variability
Trophic interactions
title_short Warming modifies trophic cascades and eutrophication in experimental freshwater communities
title_full Warming modifies trophic cascades and eutrophication in experimental freshwater communities
title_fullStr Warming modifies trophic cascades and eutrophication in experimental freshwater communities
title_full_unstemmed Warming modifies trophic cascades and eutrophication in experimental freshwater communities
title_sort Warming modifies trophic cascades and eutrophication in experimental freshwater communities
author Pereira, Ticiana S. A. Carvalho
author_facet Pereira, Ticiana S. A. Carvalho
Kratina, Pavel
Greig, Hamish S.
Thompson, Patrick L.
Shurin, Jonathan B.
author_role author
author2 Kratina, Pavel
Greig, Hamish S.
Thompson, Patrick L.
Shurin, Jonathan B.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pereira, Ticiana S. A. Carvalho
Kratina, Pavel
Greig, Hamish S.
Thompson, Patrick L.
Shurin, Jonathan B.
Pereira, Ticiana S. A. Carvalho
Kratina, Pavel
Greig, Hamish S.
Thompson, Patrick L.
Shurin, Jonathan B.
dc.subject.por.fl_str_mv Climate warming
Community structure
Food webs
Indirect and direct temperature effects
Metabolic rates
Press perturbations
Productivity
Temporal variability
Trophic interactions
topic Climate warming
Community structure
Food webs
Indirect and direct temperature effects
Metabolic rates
Press perturbations
Productivity
Temporal variability
Trophic interactions
description p. 1421–1430
publishDate 2012
dc.date.issued.fl_str_mv 2012
dc.date.accessioned.fl_str_mv 2014-09-03T16:45:05Z
dc.date.available.fl_str_mv 2014-09-03T16:45:05Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/15767
dc.identifier.issn.none.fl_str_mv 0012-9658
dc.identifier.number.pt_BR.fl_str_mv v. 93, n. 6
identifier_str_mv 0012-9658
v. 93, n. 6
url http://repositorio.ufba.br/ri/handle/ri/15767
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.country.fl_str_mv Brasil
dc.source.pt_BR.fl_str_mv http://dx.doi.org.ez10.periodicos.capes.gov.br/10.1890/11-1595.1
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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institution UFBA
reponame_str Repositório Institucional da UFBA
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