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Graça, Manuel Augusto Simões
Graça, M. A. S.
Graça, Manuel, A. S.
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Manuel Augusto Simões Graça. Ph.D. University of Sheffield, U.K. In my research I am interested in understanding the general ecology of streams. I am particularly interested in litter decomposition and brown food webs (litter as the energy source for communities). In this regard, I am interested in understanding factors ruling the the transference of energy and materials from the leaf litter to the consumers, fungi and invertebrates. Therefore, my studies include chemical changes in decomposing leaves, the ecology of the decomposers (aquatic hyphomycetes) and animals feeding on detritus (shredders). I am also interested in developing, improving and applying tools to assess environmental quality and the effect of pollutants in receiving system, particularly mining effects in freshwaters. Under this research topic, I am cooperating with regional environmental agencies and the industry.
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UC Researcher


Results 1-74 of 74 (Search time: 0.002 seconds).

Issue DateTitleAuthor(s)TypeAccess
12020Activities of oxidative stress- and cell membrane-related enzymes in a freshwater leaf-shredder exposed to uraniumBergmann, Melissa ; Graça, Manuel A. S. ; Sobral, Olímpia articleopenAccess
228-Dec-2016Aquatic hyphomycetes, benthic macroinvertebrates and leaf litter decomposition in streams naturally differing in riparian vegetationFerreira, Verónica ; Castela, José ; Rosa, Paulo; Tonin, Alan Mosele; Boyero, Luz; Graça, Manuel A. S. articleopenAccess
316-May-2000Aspects of the behavioral ecology of Podarcis bocagei (Sauria- Lacertidae): a study of visual communication and chemoreception.Castro, Maria José Carvalho Domingues de doctoralThesisembargoedAccess
42019Biodiversity of leaf litter fungi in streams along a latitudinal gradientSeena, Sahadevan; Bärlocher, Felix ; Sobral, Olímpia ; Gessner, Mark O.; Dudgeon, David; Mckie, Brendan G.; Chauvet, Eric; Ferreira, Verónica ; Gonçalves, Vítor; Medeiros, Adriana O. ; Pozo, Jesús ; Graça, Manuel A. S. ; et al.articleopenAccess
52012Biosorption of uranium in contaminated waters: the potential of four plant species for remediation of streams affected by acid mine drainagesAntunes, Patrícia Joana Rodrigues de Oliveira masterThesisopenAccess
62016Biotic and abiotic variables influencing plant litter breakdown in streams: a global studyBoyero, Luz; Pearson, Richard G.; Hui, Cang; Gessner, Mark O.; Perez, Javier; Alexandrou, Markos A.; Graça, Manuel A. S. ; Ferreira, Verónica ; et al.articleopenAccess
72019Capítulo 12. Processos ecológicos e serviçosFerreira, Verónica ; Canhoto, Cristina ; Pascoal, Cláudia; Graça, Manuel A. S. bookPartopenAccess
82014Chapter 18. Stream pollution and fungiFerreira, Verónica ; Gulis, Vladislav ; Pascoal, Cláudia ; Graça, Manuel A. S. bookPartopenAccess
92013Combined effects of water temperature and nutrients concentration on periphyton respiration - implications of global changeRosa, João ; Ferreira, Verónica ; Canhoto, Cristina ; Graça, Manuel A.S. articleopenAccess
109-Aug-2021A comparison of decomposition rates and biological colonization of leaf litter from tropical and temperate originsRamos, Sandra M. ; Graça, Manuel A. S. ; Ferreira, Verónica articleopenAccess
112015A conceptual model of litter breakdown in low order streamsGraça, Manuel A. S. ; Ferreira, Verónica ; Canhoto, Cristina ; Encalada, Andrea C.; Guerrero-Bolaño, Francisco; Wantzen, Karl M.; Boyero, LuzarticleopenAccess
122012Continental-scale effects of nutrient pollution on stream ecosystem functioningWoodward, Guy; Gessner, Mark O.; Giller, Paul S.; Gulis, Vladislav; Hladyz, Sally; Lecerf, Antoine; Malmqvist, B.; Ferreira, Verónica ; Graça, Manuel A. S. ; et al.articleopenAccess
132007Decomposition of Fire Exposed Eucalyptus Leaves in a Portuguese Lowland StreamGama, Mafalda ; Gonçalves, Ana Lúcia ; Ferreira, Verónica ; Graça, Manuel A. S. ; Canhoto, Cristina articleopenAccess
142005Degradation of Leaf Litter Phenolics by Aquatic and Terrestrial IsopodsZimmer, Martin ; Oliveira, Ricardo ; Rodrigues, Elsa ; Graça, Manuel A. S. articleopenAccess
152008Diversity and activity of aquatic fungi under low oxygen conditionsMedeiros, A. O. ; Pascoal, C. ; Graça, M. A. S. articleopenAccess
162014Do climate and soil influence phenotypic variability in leaf litter, microbial decomposition and shredder consumption?Graça, M. A. S. ; Poquet, J. M. articleopenAccess
172006Do Invertebrate Activity and Current Velocity Affect Fungal Assemblage Structure in Leaves?Ferreira, Verónica ; Graça, Manuel A. S. articleopenAccess
182006Effect of Seasonal Changes on Predictive Model Assessments of Streams Water Quality with MacroinvertebratesFeio, Maria João ; Reynoldson, Trefor B. ; Graça, Manuel A. articleopenAccess
1926-Apr-2019Effects of elevated atmospheric CO2 concentration and temperature on litter decomposition in streams: A meta-analysisAmani, Mabano; Graça, Manuel A. S. ; Ferreira, Verónica articleopenAccess
2019-Jul-2018Effects of elevated CO2 and temperature on plant litter decomposition in freshwaters – a meta-analysis. / Efeitos do aumento da cocnetração de CO2 e da temperatura na decomposição de detritos vegetais em sistemas aquáticos de água doce – uma meta-análiseMabano, Amani masterThesisopenAccess
212012Effects of litter diversity on decomposition and biological colonization of submerged litter in temperate and tropical streamsFerreira, Verónica ; Encalada, Andrea C.; Graça, Manuel A. S. articleopenAccess
222006Effects of Nutrient Enrichment on Decomposition and Fungal Colonization of Sweet Chestnut Leaves in an Iberian Stream (Central Portugal)Abelho, Manuela ; Graça, M. articleopenAccess
23May-2016Effects of whole-stream nitrogen enrichment and litter species mixing on litter decomposition and associated fungiFerreira, Verónica ; Graça, Manuel A. S. articleopenAccess
241998The elaboration of indices to assess biological water quality. A case studyGraça, M. A. S. ; Coimbra, C. N. articleopenAccess
253-Apr-2001Eucalyptus globulus leaves : morphological and chemical barriers to decomposition in streamsCanhoto, Cristina Maria Moreira Monteiro Leal doctoralThesisembargoedAccess
26Aug-2006Eucalyptus plantations affect fungal communities associated with leaf-litter decomposition in Iberian streamsFerreira, Verónica ; Elosegi, Arturo; Gulis, Vladislav ; Pozo, Jesús ; Graça, Manuel A.S. articleopenAccess
272008Evaluation of stream ecological integrity using litter decomposition and benthic invertebratesCastela, José ; Ferreira, Verónica ; Graça, Manuel A. S. articleopenAccess
2812-Jan-2007Factors affecting decomposition of submerged litter and associated microbes and invertebratesFerreira, Verónica Jacinta Lopes doctoralThesisopenAccess
292004Factors Affecting Macroinvertebrate Richness and Diversity in Portuguese Streams: a Two-Scale AnalysisGraça, Manuel A. S. ; Pinto, Paulo ; Cortes, Rui ; Coimbra, Nuno ; Oliveira, Simone ; Morais, Manuela ; Carvalho, Maria João ; Malo, Jorge articleopenAccess
302000Food consumption by the larvae of Sericostoma vittatum (Trichoptera), an endemic species from the Iberian PeninsulaFeio, M. J. ; Graça, M. A. S. articleopenAccess
3122-Feb-2017From taxonomy to multiple-trait bioassessment: the role of Chironomidae in separating naturally poor from disturbed communitiesSerra, Sónia Raquel Quinás doctoralThesisembargoedAccess
322007Fungal Activity Associated with Decomposing Wood is Affected by Nitrogen Concentration in WaterFerreira, Verónica ; Graça, Manuel A. S. articleopenAccess
332019A global assessment of the effects of eucalyptus plantations on stream ecosystem functioningFerreira, Verónica ; Boyero, Luz; Calvo, Clementina; Correa, Francisco; Figueroa, Ricardo; Goyenola, Guillermo; Graça, Manuel A. S. ; Hepp, Luiz U.; Kariuki, Samuel; López-Rodríguez, Anahí; Mazzeo, Néstor; M’Erimba, Charles; Monroy, Silvia; Peil, Alessandra; Pozo, Jesús ; Rezende, Renan; Teixeira-de-Mello, FrancoarticleopenAccess
342011Global distribution of a key trophic guild contrasts with common latitudinal diversity patternsBoyero, Luz; Pearson, Richard G.; Dudgeon, David; Graça, Manuel A. S. ; Gessner, Mark O.; Albariño, Ricardo J.; Ferreira, Verónica ; et al.articleopenAccess
352011A global experiment suggests climate warming will not accelerate litter decomposition in streams but might reduce carbon sequestrationBoyero, Luz; Pearson, Richard G.; Gessner, Mark O.; Barmuta, Leon A.; Ferreira, Verónica ; Graça, Manuel A. S. ; Dudgeon, D.; Castela, José ; et al.articleopenAccess
36Jan-2019Global patterns and drivers of ecosystem functioning in rivers and riparian zonesTiegs, Scott D.; Costello, David M.; Isken, Mark W.; Woodward, Guy; McIntyre, Peter B.; Gessner, Mark O.; Chauvet, Eric; Canhoto, Cristina ; Ferreira, Verónica ; Graça, Manuel A. S. ; Medeiros, Adriana Oliveira ; et al.articleopenAccess
372012Global patterns of stream detritivore distribution: Implications for biodiversity loss in changing climatesBoyero, Luz; Pearson, Richard G.; Dudgeon, David; Ferreira, Verónica ; Graça, Manuel A. S. ; Gessner, Mark O.; Boulton, Andrew J.; Castela, José ; et al.articleopenAccess
382021Impacts of detritivore diversity loss on instream decomposition are greatest in the tropicsBoyero, Luz; López-Rojo, Naiara; Tonin, Alan M.; Pérez, Javier ; Correa-Araneda, Francisco; Pearson, Richard G.; Bosch, Jaime; Albariño, Ricardo J.; Anbalagan, Sankarappan; Barmuta, Leon A.; Basaguren, Ana ; Burdon, Francis J.; Caliman, Adriano; Callisto, Marcos; Calor, Adolfo R.; Campbell, Ian C.; Cardinale, Bradley J.; Jesús Casas, J.; Chará-Serna, Ana M.; Chauvet, Eric; Ciapała, Szymon; Colón-Gaud, Checo; Cornejo, Aydeé; Davis, Aaron M.; Degebrodt, Monika; Dias, Emerson S.; Díaz, María E.; Douglas, Michael M.; Encalada, Andrea C. ; Figueroa, Ricardo; Flecker, Alexander S.; Fleituch, Tadeusz; García, Erica A.; García, Gabriela; García, Pavel E.; Gessner, Mark O.; Gómez, Jesús E.; Gómez, Sergio; Gonçalves, Jose F.; Graça, M. A. S. ; Gwinn, Daniel C.; Hall, Robert O.; Hamada, Neusa; Hui, Cang; Imazawa, Daichi; Iwata, Tomoya; Kariuki, Samuel K.; Landeira-Dabarca, Andrea; Laymon, Kelsey; Leal, Maria Catarina Bota Vasques ; Marchant, Richard; Martins, Renato T.; Masese, Frank O.; Maul, Megan; McKie, Brendan G.; Medeiros, Adriana O.; Erimba, Charles M. M.; Middleton, Jen A.; Monroy, Silvia; Muotka, Timo; Negishi, Junjiro N.; Ramírez, Alonso; Richardson, John S.; Rincón, José; Rubio-Ríos, Juan; Santos, Gisele M. dos; Sarremejane, Romain; Sheldon, Fran; Sitati, Augustine; Tenkiano, Nathalie S D; Tiegs, Scott D; Tolod, Janine R; Venarsky, Michael; Watson, Anne; Yule, Catherine MarticleopenAccess
392002In situ tests for water quality assessment: a case study in Pampean riversGraça, Manuel A. S. ; Rodrígues-Capítulo, Alberto ; Ocón, Carolina ; Gómez, Nora articleopenAccess
402005Influence of Detritus on the Structure of the Invertebrate Community in a Small Portuguese StreamGonzález, M. ; Graça, Manuel A. S. articleopenAccess
41Jan-2021Invasion of temperate deciduous broadleaf forests by N-fixing tree species – consequences for stream ecosystemsFerreira, Verónica ; Figueiredo, Albano ; Graça, Manuel ; Marchante, Elizabete ; Pereira, Ana articleopenAccess
422007A laboratory study on feeding plasticity of the shredder Sericostoma vittatum Rambur (Sericostomatidae)Carvalho, Emerson ; Graça, Manuel articleopenAccess
432015Latitudinal gradient of nestedness and its potential drivers in stream detritivoresBoyero, Luz; Pearson, R. G.; Swan, C. M. ; Hui, C.; Albariño, R. J.; Arunachalam, M.; Callisto, M.; Ferreira, Verónica; Graça, Manuel, A. S. ; et al.articleopenAccess
442016Leaf litter decomposition in remote oceanic island streams is driven by microbes and depends on litter quality and environmental conditionsFerreira, Verónica ; Raposeiro, Pedro M.; Pereira, Ana ; Cruz, Ana M.; Costa, Ana C.; Graça, Manuel A.S. ; Gonçalves, VítorarticleopenAccess
452006Life History of Lepidostoma hirtum in an Iberian Stream and its Role in Organic Matter ProcessingAzevedo-Pereira, H. ; Graça, M. ; González, J. articleopenAccess
462016Litter Decomposition as an Indicator of Stream Ecosystem Functioning at Local-to-Continental Scales: Insights from the European RivFunction ProjectChauvet, Eric; Ferreira, Verónica ; Giller, Paul S.; Mckie, Brendan G.; Tiegs, Scott D.; Woodward, Guy; Elosegi, Arturo; Graça, M. A. S. ; et al.bookPartopenAccess
471998Litter in a first–order stream of a temperate deciduous forest (Margaraça Forest, central Portugal)Abelho, Manuela ; Graça, M. articleopenAccess
4831-Oct-2021Litter Quality Is a Stronger Driver than Temperature of Early Microbial Decomposition in Oligotrophic Streams: a Microcosm StudyPérez, Javier; Ferreira, Verónica ; Graça, Manuel A. S. ; Boyero, LuzarticleopenAccess
4910-Feb-2005Macroinvertebrates in the Mondego river basin bioassessmentFeio, Maria João de Medeiros Brazão Lopes doctoralThesisembargoedAccess
502015A meta-analysis of the effects of nutrient enrichment on litter decomposition in streamsFerreira, Verónica ; Castagneyrol, Bastian; Koricheva, Julia; Gulis, Vladislav ; Chauvet, Eric; Graça, Manuel A. S. articleopenAccess
51Mar-2016A meta-analysis on the effects of changes in the composition of native forests on litter decomposition in streamsFerreira, Verónica ; Koricheva, Julia; Pozo, Jesús ; Graça, Manuel A. S. articleopenAccess
522015Microbial colonisation and litter decomposition in a Cerrado stream are limited by low dissolved nutrient concentrationsMedeiros, Adriana O. ; Callisto, Marcos; Graça, Manuel A.S. ; Ferreira, Verónica ; Rosa, Carlos A.; Franca, Juliana; Eller, Ana; Rezende, Renan S.; Gonçalves, J. F. Jr.articleopenAccess
531-Jan-2022Microbial colonization and decomposition of commercial tea and native alder leaf litter in temperate streamsFerreira, Verónica ; Silva, João; Julien, Cornut ; Graça, Manuel A. S. articleopenAccess
542015Microbial decomposers diversity and litter decomposition along an altitudinal gradient in tropical and temperate stream ecosystemsTorres, Cristina Alexandra Salgado masterThesisopenAccess
552017Nutrient enrichment in water more than in leaves affects aquatic microbial litter processingBiasi, Cristiane; Graça, Manuel A. S. ; Santos, Sandro; Ferreira, Verónica articleopenAccess
5612-May-2000Once upon a time a leaf... : from litterfall to breakdown in streamsAbelho, Maria Manuela Correia doctoralThesisembargoedAccess
572007A predictive model for freshwater bioassessment (Mondego River, Portugal)Feio, Maria ; Reynoldson, Trefor ; Ferreira, Verónica ; Graça, Manuel articleopenAccess
582010Riparian land use and the relationship between the benthos and litter decomposition in tropical montane streamsEncalada, Andrea C. ; Ferreira, Verónica ; Canhoto, Cristina ; Graça, Manuel A. S. ; Calles, JuanarticleopenAccess
592017Riparian plant litter quality increases with latitudeBoyero, Luz; Graça, Manuel A. S. ; Tonin, Alan M.; Peréz, Javier; Swafford, Andrew J.; Ferreira, Verónica ; Landeira-Dabarca, Andrea; et al.articleopenAccess
602006Role of physical fragmentation and invertebrate activity in the breakdown rate of leavesFerreira, Verónica ; Graça, Manuel A.S. ; Lima, João L. M. P. de ; Gomes, RicardoarticleopenAccess
612012A stable temperature may favour continuous reproduction by Theodoxus fluviatilis and explain its high densities in some karstic springsGraça, Manuel A. S. ; Serra, Sónia R. Q. ; Ferreira, Verónica articleopenAccess
622006Stimulation of leaf litter decomposition and associated fungi and invertebrates by moderate eutrophication: Implications for stream assessmentGulis, Vladislav ; Ferreira, Verónica ; Graça, Manuel A. S. articleopenAccess
632007Testing the Use of the Water Milfoil ( Myriophyllum spicatum L.) in Laboratory Toxicity AssaysSánchez, David ; Graça, Manuel ; Canhoto, Jorge articleopenAccess
642007The breakdown of Blue Gum (Eucalyptus globulus Labill.) bark in a Portuguese streamGonçalves, Ana Lúcia ; Gama, Mafalda ; Ferreira, Verónica ; Graça, Manuel A.S. ; Canhoto, Cristina articleopenAccess
652013The effect of temperature on leaf decomposition and diversity of associated aquatic hyphomycetes depends on the substrateGonçalves, Ana Lúcia ; Graça, Manuel A. S. ; Canhoto, Cristina articleopenAccess
662015The effects of eucalypt plantations on plant litter decomposition and macroinvertebrate communities in Iberian streamsFerreira, Verónica ; Larrañaga, Aitor; Gulis, Vladislav ; Basaguren, Ana ; Elosegi, Arturo; Graça, Manuel A. S. ; Pozo, Jesús articleopenAccess
6713-Dec-2013The importance of fungal diversity on leaf decomposition in streamsGonçalves, Ana Lúcia doctoralThesisopenAccess
682012The performance of biological indicators in assessing the ecological state of streams with varying catchment urbanisation levels in Coimbra, PortugalDel Arco, Ana I.; Ferreira, Verónica ; Graça, Manuel A. S. articleopenAccess
69Dec-2005The role of the environment in the distribution and composition of Trichoptera assemblages in streamsFeio, Maria João ; Vieira Lanero, Rufino ; Ferreira, Verónica ; Graça, Manuel Augusto Simões articleopenAccess
702020Uranium affects growth, sporulation, biomass and leaf-litter decomposition by aquatic hyphomycetesBergmann, Melissa ; Graça, Manuel A. S. articleopenAccess
7121-Jan-2020Uranium bioaccumulation, potential biomagnification and dispersion by freshwater insectsBergmann, Melissa doctoralThesisopenAccess
722009Water quality assessment of Portuguese streams: Regional or national predictive models?Feio, M. J. ; Norris, R. H. ; Graça, M. A. S. ; Nichols, S. articleopenAccess
732004Water quality in the Mondego river basin: Pollution and habitat heterogeneityFerreira, Verónica ; Graça, Manuel, A. S. ; Feio, Maria João ; Mieiro, Cláudia articleopenAccess
742006Whole-stream nitrate addition affects litter decomposition and associated fungi but not invertebratesFerreira, Verónica ; Gulis, Vladislav ; Graça, Manuel articleopenAccess