Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/98722
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dc.contributor.authorFerreira, Verónica-
dc.contributor.authorGonçalves, Ana Lúcia-
dc.contributor.authorGodbold, Douglas L.-
dc.contributor.authorCanhoto, Cristina-
dc.date.accessioned2022-02-06T14:41:40Z-
dc.date.available2022-02-06T14:41:40Z-
dc.date.issued2010-
dc.identifier.other2-s2.0-78349251707en_US
dc.identifier.urihttp://hdl.handle.net/10316/98722-
dc.description.abstractCold water woodland streams, where terrestrially derived organic matter fuels aquatic food webs, can be affected by increases in atmospheric CO2 concentrations, as these are predicted to lead to increases in water temperature and decreases in organic matter quality. In fact, elevated CO2 (580 ppm) decreased the initial phosphorus concentration of birch litter by 30% compared with litter grown under ambient conditions (380 ppm). Here, we first assessed the effect of differences in litter quality on mass loss, microbial colonization and conditioned litter quality after submersion in a mountain stream for 2 weeks. Leaching did not change the relative differences between litter types, while fungal biomass was two fold higher in elevated litter. We then offered this litter (conditioned ambient and elevated) to a stream detritivore that was kept at 10 and 15 1C to assess the individual and interactive effects of increased temperature and decreased litter quality on invertebrate performance. When given a choice, the detritivore preferred elevated litter, but only at 10 1C. When fed litter types singularly, there was no effect of litter quality on consumption rates; however, the effect of temperature depended on individual size and time of collection. Growth rates were higher in individuals fed ambient litter at 10 1C when compared with individuals fed elevated litter at 15 1C. Mortality did not differ between litter types, but was higher at 15 1C than at 10 1C. Increases in temperature led to alterations in the individual body elemental composition and interacted with litter type. The performance of the detritivore was therefore more affected by increases in temperature than by small decreases in litter quality. However, it seems conceivable that in a future global warming scenario the simultaneous increases in water temperature and decreases in litter quality might affect detritivores performance more than predicted from the effects of both factors considered individually.pt
dc.language.isoengpt
dc.rightsopenAccesspt
dc.subjectaquatic detritivorept
dc.subjectglobal changept
dc.subjectlitter qualitypt
dc.subjectSericostoma vittatumpt
dc.subjectwater temperaturept
dc.titleEffect of increased atmospheric CO2 on the performance of an aquatic detritivore through changes in water temperature and litter qualitypt
dc.typearticleen_US
degois.publication.firstPage3284pt
degois.publication.lastPage3296pt
degois.publication.issue12pt
degois.publication.titleGlobal Change Biologypt
dc.date.updated2022-02-04T13:23:52Z-
dc.peerreviewedyespt
dc.identifier.doi10.1111/j.1365-2486.2009.02153.xpt
degois.publication.volume16pt
dc.description.version3F10-AC72-52D0 | Verónica Ferreira-
dc.description.versioninfo:eu-repo/semantics/publishedVersion-
dc.identifier.slugcv-prod-702525-
dc.date.embargo2010-01-01*
uc.date.periodoEmbargo0pt
item.grantfulltextopen-
item.fulltextCom Texto completo-
item.openairetypearticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.languageiso639-1en-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.deptFaculty of Sciences and Technology-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.parentdeptUniversity of Coimbra-
crisitem.author.researchunitMARE - Marine and Environmental Sciences Centre-
crisitem.author.researchunitMARE - Marine and Environmental Sciences Centre-
crisitem.author.orcid0000-0001-7688-2626-
crisitem.author.orcid0000-0003-3343-8757-
Appears in Collections:FCTUC Ciências da Vida - Artigos em Revistas Internacionais
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