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Credit Name
Freitas, Helena
Full Name
Freitas, Helena Maria de Oliveira
Freitas, Helena
Ciência ID
Helena Freitas received her PhD in Ecology from the University of Coimbra, in collaboration with the University of Bielefeld, Germany, in 1993, and did postdoctoral studies at Stanford University, USA, between 1994 and 1996. She is Full Professor of Biodiversity and Ecology at the Department of Life Sciences of the Faculty of Sciences and Technology of the University of Coimbra since 2003, and holds the UNESCO Chair in Biodiversity and Conservation for Sustainable Development since 2014 (http://unescobiodiversitychair.uc.pt). She was Vice-Dean of the University of Coimbra between 2011 and 2015, with Institutional Relations, Museums and Sports. In 2015 she was independent candidate to the Assembly of the Republic, leading the list of the Socialist Party by the constituency of Coimbra. Between 23 October 2015 and 10 March 2016, she was deputy and vice-president of the Parliamentary Group of the Socialist Party. Between 10 March 2016 and 18 July 2017, she was Coordinator of the Mission Unit of the Interior, coordinating the National Program for Territorial Cohesion (http://www.pnct.gov.pt, Diário da República No. 226/2016, Series I, 2016-11-24). Helena Freitas joined the General Council of the University of Coimbra (2009-2011), was Director of the Botanical Garden of the University of Coimbra from 2004 to 2012, having prepared and coordinated her requalification program, President of the League for the Protection of Nature (1999 (2002-2005), founder and President of the Portuguese Society of Ecology (2004-2013) and Vice- President of the European Society of Ecology (2009-2012). She is currently Coordinator of the Center for Functional Ecology - science for people and the planet (cfe.uc.pt), Scientific Coordinator of FitoLab - Phytosanitary Laboratory of the Pedro Nunes Institute (https://www.ipn.pt/ laboratory / FITOLAB), and is part of the Scientific Council of the Department of Life Sciences of the University of Coimbra. The scientific areas of specialty are related to: Ecology; Mediterranean Ecosystems; Forest and Agriculture; Ecology and Management of exotic and invasive species; Conservation of Nature, Biodiversity; Physiology of the tree; Diversity of Plants and Fungi; Tolerance to Stress and Bioremediation; Environmental policy; Bioenergy; Conservation of Nature; Microbial ecology; Ecology and Society. She coordinated or participated in several national and international projects and consortia, including the Millennium Ecosystem Assessment. Supervised or co-supervised 33 doctoral dissertations and 19 master's theses. She is the author of more than 200 indexed international scientific publications and several publications promoting and disseminating science. She publishes regularly in the national and regional press, in particular on environment, territories and society, planning and development policies based on knowledge (https://www.publico.pt/autor/helena-freitas; http: //www.industriaeambiente .pt / authors / helena-freitas /). In March 2000 he was awarded the Commendation of the Order of Prince Henry the Infant by the President of the Portuguese Republic Jorge Sampaio.
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UC Researcher


Results 1-83 of 83 (Search time: 0.001 seconds).

Issue DateTitleAuthor(s)TypeAccess
130-Apr-2009Above-ground biomass and productivity in the Montado: From herbaceous to shrub dominated communitiesCastro, H. ; Freitas, H. articleopenAccess
22022Aboveground Biomass, Carbon Sequestration, and Yield of Pyrus pyrifolia under the Management of Organic Residues in the Subtropical Ecosystem of Southern Brazilda Silva, Lucas Jónatan Rodrigues; Souza, Tancredo ; Laurindo, Lídia Klestadt; Nascimento, Gislaine dos Santos; de Lucena, Edjane Oliveira; Freitas, Helena articleopenAccess
32015Adjustment Capacity of Maritime Pine Cambial Activity in Drought-Prone EnvironmentsVieira, Joana ; Campelo, Filipe ; Rossi, Sergio ; Carvalho, Ana ; Freitas, Helena ; Nabais, Cristina articleopenAccess
42017Arbuscular mycorrhizal fungal community assembly in the Brazilian tropical seasonal dry forestde Souza, Tancredo Augusto Feitosa ; Freitas, Helena articleopenAccess
52010Arbuscular mycorrhizal fungal diversity and composition in pastures of the Azores : assessing the impact of management practicesMelo, Catarina Alexandra Drumonde doctoralThesisopenAccess
62008Arbuscular mycorrhizal fungi of Ammophila arenaria (L.) Link: Spore abundance and root colonisation in six locations of the European coastRodríguez-Echeverría, Susana ; Hol, W.H. Gera ; Freitas, Helena ; Eason, William R. ; Cook, Roger articleopenAccess
7Feb-2011Assessing the suitability and safety of a well-known bud-galling wasp, Trichilogaster acaciaelongifoliae, for biological control of Acacia longifolia in PortugalMarchante, H. ; Freitas, H. ; Hoffmann, J. H. articleopenAccess
814-May-2008Belowground mutualists and the invasive ability of Acacia longifolia in coastal dunes of PortugalRodríguez-Echeverría, Susana ; Crisóstomo, João ; Nabais, Cristina ; Freitas, Helena articleopenAccess
929-Apr-2019Bridging the roles of seed dispersal and plant mycorrhizal interactions as drivers of ecosystem structure and functionCorreia, Marta Raquel Cardoso LopesdoctoralThesisembargoedAccess
1013-Dec-2013Cambial activity and wood formation of Maritime pine in a drought-prone environment: the effect of growth rate, size and climateVieira, Joana Margarida Soares doctoralThesisopenAccess
1129-Aug-2008Can root-feeders alter the composition of AMF communities? Experimental evidence from the dune grass Ammophila arenariaRodríguez-Echeverría, Susana ; de la Peña, Eduardo ; Moens, Maurice ; Freitas, Helena ; van der Putten, Wim H. articleopenAccess
1230-Apr-2007Caracterização da flora vascular e do padrão e dinâmica da paisagem na Serra do Caramulo : análise do estado de conservação de taxa prioritáriosRibeiro, Pedro Miguel da Costa doctoralThesisopenAccess
132004Change in plant spatial patterns and diversity along the successional gradient of Mediterranean grazing ecosystemsAlados, Concepción L. ; ElAich, Ahmed ; Papanastasis, Vasilios P. ; Ozbek, Huseyin ; Navarro, Teresa ; Freitas, Helena ; Vrahnakis, Mihalis ; Larrosi, Driss ; Cabezudo, Baltasar articleopenAccess
142008Characterization of metal-resistant plant-growth promoting Bacillus weihenstephanensis isolated from serpentine soil in PortugalRajkumar, Mani ; Ma, Ying ; Freitas, Helena articleopenAccess
1514-Mar-2008Climatic significance of tree-ring width and intra-annual wood features in Pinus pinea L. and Quercus ilex L.Campelo, Filipe José Valente doctoralThesisembargoedAccess
1631-Jan-2018Corema, the amphi-Atlantic genus: belowground ecology and performanceMartins, Ana Filipa Duarte doctoralThesisembargoedAccess
172022Decomposition Rate of Organic Residues and Soil Organisms’ Abundance in a Subtropical Pyrus pyrifolia FieldRodrigues da Silva, Lucas Jónatan; Feitosa de Souza, Tancredo Augusto; Klestadt Laurindo, Lídia; Freitas, Helena ; Costa Campos, Milton CésararticleopenAccess
182013Developmentally-programmed division of labour in the clonal invader Carpobrotus edulisRoiloa, Sergio R. ; Rodríguez-Echeverría, Susana ; Freitas, H. ; Retuerto, Rubén articleopenAccess
192006Diversity of AMF associated with Ammophila arenaria ssp. arundinacea in Portuguese sand dunesRodríguez-Echeverría, Susana ; Freitas, Helena articleopenAccess
202008The early effects of afforestation on biodiversity of grasslands in IrelandBuscardo, Erika ; Smith, George ; Kelly, Daniel ; Freitas, Helena ; Iremonger, Susan ; Mitchell, Fraser ; O’Donoghue, Saoirse ; McKee, Anne-Marie articleopenAccess
212014Ecological networks: delving into the architecture of biodiversityHeleno, Ruben ; Garcia, Cristina ; Jordano, Pedro ; Traveset, Anna ; Gómez, José Maria ; Bluthgen, Nico ; Memmott, Jane ; Moora, Mari ; Cerdeira, Jorge ; Rodríguez-Echeverría, Susana ; Freitas, Helena ; Olesen, Jens M. articleopenAccess
2221-Jul-2015Ecological processes related to urban development and land use change in the municipality of CoimbraBarrico, Maria de Lurdes Chorro Simões doctoralThesisopenAccess
232009Ecophysiological tolerance of duckweeds exposed to copperKanoun-Boulé, Myriam ; Vicente, Joaquim A. F. ; Nabais, Cristina ; Prasad, M. N. V. ; Freitas, Helena articleopenAccess
242008Effects of chitin and salicylic acid on biological control activity of Pseudomonas spp. against damping off of pepperRajkumar, M. ; Lee, K.J. ; Freitas, H. articleopenAccess
252008Effects of inoculation of plant-growth promoting bacteria on Ni uptake by Indian mustardRajkumar, Mani ; Freitas, Helena articleopenAccess
2629-Sep-2008Effects of land use change on plant composition and ecosystem functioning in an extensive agro-pastoral system : plant functional traits and ecosystems processesCastro, Helena Isabel Ferreira de doctoralThesisopenAccess
272004Effects of Li+ transport and intracellular binding on Li+/Mg2+ competition in bovine chromaffin cellsFonseca, C. P. ; Montezinho, L. P. ; Nabais, C. ; Tomé, A. R. ; Freitas, H. ; Geraldes, C. F. G. C. ; Castro, M. M. C. A. articleopenAccess
282007Effects of nickel hyperaccumulation in Alyssum pintodasilvae on model arthropods representatives of two trophic levelsGonçalves, M. ; Gonçalves, Susana ; Portugal, António ; Silva, Sandra ; Sousa, José ; Freitas, Helena articleopenAccess
2915-Jun-2010Enhanced phytoextraction of metal contaminated soils using plant growth promoting bacteriaMa, Ying doctoralThesisembargoedAccess
3021-Apr-2021Establishment, spread and early impacts of the first biocontrol agent against an invasive plant in continental EuropeLópez-Núñez, Francisco Alejandro ; Marchante, Elizabete ; Heleno, Ruben ; Duarte, Liliana Neto; Palhas, Jael; Impson, Fiona; Freitas, Helena ; Marchante, Hélia articleembargoedAccess
3128-Feb-2014A Flore Portugaise e as viagens de Hoffmannsegg e Link a Portugal (1795-1801)Oliveira, Nuno Fernando da Ascenção Gomes doctoralThesisopenAccess
322013Flow cytometry as a tool to assess the effects of gamma radiation on the viability, growth and metabolic activity of fungal sporesMesquita, N. ; Portugal, A. ; Piñar, G. ; Loureiro, J. ; Coutinho, A. P. ; Trovão, J. ; Nunes, I. ; Botelho, M. L. ; Freitas, H. articleopenAccess
332000Fungal biomass and decomposition in Spartina maritima leaves in the Mondego salt marsh (Portugal)Castro, Paula ; Freitas, Helena articleopenAccess
342007Genetic diversity and differential in vitro responses to Ni in Cenococcum geophilum isolates from serpentine soils in PortugalGonçalves, Susana ; Portugal, António ; Gonçalves, M. ; Vieira, Rita ; Martins-Loução, M. ; Freitas, Helena articleopenAccess
35Aug-2007Genetic diversity of rhizobia associated with Acacia longifolia in two stages of invasion of coastal sand dunesRodríguez-Echeverría, Susana ; Crisóstomo, João A. ; Freitas, Helena articleopenAccess
365-Feb-2014Identification and control of fungal contamination in ancient heritage documentsMesquita, Nuno doctoralThesisembargoedAccess
3715-Jun-1993Importância ecológica dos tricomas vesiculares em algumas espécies de AtriplexFreitas, Helena Maria de Oliveira doctoralThesisembargoedAccess
382013Improvement of Ni phytostabilization by inoculation of Ni resistant Bacillus megaterium SR28CRajkumar, Mani ; Ma, Ying ; Freitas, H. articleopenAccess
3930-Apr-2009Improvement of plant growth and nickel uptake by nickel resistant-plant-growth promoting bacteriaMa, Ying ; Rajkumar, Mani ; Freitas, Helena articleopenAccess
402008Influence of metal resistant-plant growth-promoting bacteria on the growth of Ricinus communis in soil contaminated with heavy metalsRajkumar, Mani ; Freitas, Helena articleopenAccess
412013Influence of seasons and land-use practices on soil microbial activity and metabolic diversity in the “Montado ecosystem”Costa, Dalila ; Freitas, H. ; Sousa, J. P. articleopenAccess
4229-Aug-2008Inoculation of plant growth promoting bacterium Achromobacter xylosoxidans strain Ax10 for the improvement of copper phytoextraction by Brassica junceaMa, Ying ; Rajkumar, Mani ; Freitas, Helena articleopenAccess
432019Integrating plant species contribution to mycorrhizal and seed dispersal mutualistic networksCorreia, Marta ; Rodríguez-Echeverría, Susana ; Timóteo, Sérgio ; Freitas, Helena ; Heleno, Ruben articleopenAccess
442001Invasão dos ecossistemas dunares portugueses por Acacia : uma ameaça para a biodiversidade nativaMarchante, Hélia Sofia D. C. masterThesisopenAccess
452007Invasion of Portuguese coastal dunes by Acacia longifolia : impacts on soil ecologyMarchante, Elizabete Maria Duarte Canas doctoralThesisopenAccess
462011Invasion of portuguese dunes by Acacia longifolia : present status and perspective for the futureMarchante, Hélia Sofia Duarte Canas doctoralThesisopenAccess
4730-Apr-2009Isolation and characterization of Ni mobilizing PGPB from serpentine soils and their potential in promoting plant growth and Ni accumulation by Brassica spp.Ma, Ying ; Rajkumar, Mani ; Freitas, Helena articleopenAccess
482014Large and variable genome size unrelated to serpentine adaptation but supportive of cryptic sexuality in Cenococcum geophilumBourne, Elizabeth C. ; Mina, Diogo ; Gonçalves, Susana C. ; Loureiro, João ; Freitas, Helena ; Muller, Ludo A.H. articleopenAccess
492006Mechanism of control of root-feeding nematodes by mycorrhizal fungi in the dune grass Ammophila arenariaPeña, Eduardo de la ; Echeverría, Susana Rodriguez ; Putten, Wim H. van der ; Freitas, Helena ; Moens, Maurice articleopenAccess
502000Micorrizas em Festuca Brigantina : funcionamento e significado ecológicoGonçalves, Susana Cláudia de Freitas Rodrigues masterThesisopenAccess
5117-Jun-2015Modelo de avaliação de sustentabilidade integrado e global para ecossistemas florestais: Bioenergia, produtos derivados de madeira e co-produtosNunes, João Miguel dos Santos Almeida doctoralThesisembargoedAccess
522000Monitorização de Ammophila arenaria (L.) Link em ecossistemas dunares portuguesesReis, Catarina Schreck Carmo dos masterThesisopenAccess
532018Multilayer networks reveal the spatial structure of seed-dispersal interactions across the Great Rift landscapesTimóteo, Sérgio ; Correia, Marta ; Rodríguez-Echeverría, Susana ; Freitas, Helena ; Heleno, Ruben articleopenAccess
542014A Ni hyperaccumulator and a congeneric non-accumulator reveal equally effective defenses against herbivoryBoas, Mariana Vilas ; Gonçalves, Susana C. ; Portugal, António ; Freitas, Helena ; Gonçalves, M. Teresa articleopenAccess
552013No allelopathic effect of the invader Acacia dealbata on the potential infectivity of arbuscular mycorrhizal fungi from native soilsLorenzo, Paula ; Rodríguez-Echeverría, Susana ; Freitas, H. articleopenAccess
562015On the Limited Potential of Azorean Fleshy Fruits for Oceanic DispersalEsteves, Carolina Franco ; Costa, José Miguel ; Vargas, Pablo ; Freitas, Helena ; Heleno, Ruben articleopenAccess
572011Payments for environmental services as a policy tool for conserving the portuguese montado ecosystemRibas, Thaís de Toledo masterThesisopenAccess
5824-Apr-2013Phenology and responses of Acacia Longifolia to drought and salt stress : implications for invasiveness and managementMorais, Maria Cristina Seixas Martins doctoralThesisopenAccess
592013Phytoextraction of heavy metal polluted soils using Sedum plumbizincicola inoculated with metal mobilizing Phyllobacterium myrsinacearum RC6bMa, Ying ; Rajkumar, Mani ; Luo, Yongming ; Freitas, H. articleopenAccess
602004Plant community tolerant to trace elements growing on the degraded soils of São Domingos mine in the south east of Portugal: environmental implicationsFreitas, H. ; Prasad, M. N. V. ; Pratas, J. articleopenAccess
612022Plant growth promoting bacteria improve growth and phytostabilization potential of Zea mays under chromium and drought stress by altering photosynthetic and antioxidant responsesVishnupradeep, R.; Bruno, L. Benedict; Taj, Zarin; Karthik, Chinnannan; Challabathula, Dinakar; Tripti, null; Kumar, Adarsh; Freitas, Helena ; Rajkumar, Mani articleopenAccess
62Jun-2019Plant Letters: A citizen science project uncovering historical biodiversity dataSilva, Ana Margarida Dias da ; Cruz, Maria Teresa Girão da ; Oliveira, Joana Cabral; Freitas, Helena ; Gouveia, António Carmo articleopenAccess
632005Plants growing in abandoned mines of Portugal are useful for biogeochemical exploration of arsenic, antimony, tungsten and mine reclamationPratas, J. ; Prasad, M. N. V. ; Freitas, H. ; Conde, L. articleopenAccess
642009Preparation, characterization, bioactive and metal uptake studies of alginate/phosphorylated chitin blend filmsJayakumar, R. ; Rajkumar, M. ; Freitas, H. ; Selvamurugan, N. ; Nair, S.V. ; Furuike, T. ; Tamura, H. articleopenAccess
652013Public Perception of Invasive Plant Species: Assessing the impact of workshop activities to promote young students’ awarenessReis, Catarina Schreck ; Marchante, Hélia ; Freitas, H. ; Marchante, Elizabete articleopenAccess
662017Rain exclusion affects cambial activity in adult maritime pinesVieira, Joana ; Nabais, Cristina ; Rossi, Sergio ; Carvalho, Ana ; Freitas, Helena ; Campelo, Filipe articleembargoedAccess
672004Recovery Potential of Dune Ecosystems Invaded by an Exotic Acacia Species (Acacia longifolia)Marchante, Hélia S. ; Marchante, Elizabete M. ; Buscardo, Erika ; Maia, José ; Freitas, Helena articleopenAccess
682000Removal of toxic metals from solution by leaf, stem and root phytomass of Quercus ilex L. (holly oak)Prasad, M. N. V. ; Freitas, H. articleopenAccess
692008Responses of root-feeding nematodes (Helicotylenchus spp.) to local and non-local populations of the host plant Ammophila arenariaSchreck Reis, Catarina ; Freitas, Helena ; van der Putten, Wim H. articleopenAccess
702007Salicornia ramosissima population dynamics and tolerance of salinitySilva, Helena ; Caldeira, Gustavo ; Freitas, Helena articleopenAccess
71Sep-2019Seasonal adjustment of primary and secondary growth in maritime pine under simulated climatic changesVieira, Joana ; Moura, Mikael Alvites ; Nabais, Cristina ; Freitas, Helena ; Campelo, Filipe articleembargoedAccess
722013Seasonal and daily cycles of stem radial variation of Pinus pinaster in a drought-prone environmentVieira, Joana ; Rossi, Sergio ; Campelo, Filipe ; Freitas, Helena ; Nabais, Cristina articleembargoedAccess
7314-Nov-2000Seasonal transport, allocation and speciation of nickel in Quercus ilex grown on serpentine and nickel spiked soilSantos, Maria Cristina Amaral Penas Nabais dos doctoralThesisembargoedAccess
7421-Feb-2020Seed coating with microbial inoculants: a path to sustainable agricultureRocha, Inês de SousadoctoralThesisembargoedAccess
7529-Aug-2008Short- and long-term impacts of Acacia longifolia invasion on the belowground processes of a Mediterranean coastal dune ecosystemMarchante, Elizabete ; Kjøller, Annelise ; Struwe, Sten ; Freitas, Helena articleopenAccess
762008Soil recovery after removal of the N2-fixing invasive Acacia longifolia : consequences for ecosystem restorationMarchante, Elizabete ; Kjøller, Annelise ; Struwe, Sten ; Freitas, Helena articleopenAccess
7714-Feb-2008Structure, regeneration and functional dynamics of fragmented Mediterranean forestsMouro, Sara Maltez Ribeiro doctoralThesisembargoedAccess
782007Testing for the survey mode effect on contingent valuation data quality: A case study of web based versus in-person interviewsMarta-Pedroso, Cristina ; Freitas, Helena ; Domingos, Tiago articleopenAccess
7930-Mar-2016The decline of cork oak woodlands: biotic and abiotic interactions in Portuguese montadosArosa González, Maria Luisa doctoralThesisopenAccess
802015The response of reptile communities to wildfires in the Serra da Estrela Natural ParkFerreira, Tiago António Pinto masterThesisopenAccess
8115-Jul-2004Variabilidade genética e análise multi-loci em isolados do fungo ectomicorrízico Cenococcum geophilum das áreas ultramáficas do Nordeste de PortugalPortugal, António Manuel Santos Carriço doctoralThesisembargoedAccess
822014Which matters most for the formation of intra-annual density fluctuations in Pinus pinaster: age or size?Campelo, Filipe ; Vieira, Joana ; Battipaglia, Giovanna ; de Luis, Martin ; Nabais, Cristina ; Freitas, Helena ; Cherubini, Paolo articleembargoedAccess
832014Xylogenesis of Pinus pinaster under a Mediterranean climateVieira, Joana ; Rossi, Sergio ; Campelo, Filipe ; Freitas, Helena ; Nabais, Cristina articleembargoedAccess


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