Browsing by Author Freitas, Helena Maria de Oliveira


Or, select a letter below to browse by last name
0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Results 1 to 20 of 80  next
Issue DateTitleAuthor(s)TypeAccess
30-Apr-2009Above-ground biomass and productivity in the Montado: From herbaceous to shrub dominated communitiesCastro, H. ; Freitas, H. articleopenAccess
2015Adjustment Capacity of Maritime Pine Cambial Activity in Drought-Prone EnvironmentsVieira, Joana ; Campelo, Filipe ; Rossi, Sergio ; Carvalho, Ana ; Freitas, Helena ; Nabais, Cristina articleopenAccess
2010Arbuscular mycorrhizal fungal diversity and composition in pastures of the Azores : assessing the impact of management practicesMelo, Catarina Alexandra Drumonde doctoralThesisopenAccess
2008Arbuscular 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
Feb-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
14-May-2008Belowground mutualists and the invasive ability of Acacia longifolia in coastal dunes of PortugalRodríguez-Echeverría, Susana ; Crisóstomo, João ; Nabais, Cristina ; Freitas, Helena articleopenAccess
29-Apr-2019Bridging the roles of seed dispersal and plant mycorrhizal interactions as drivers of ecosystem structure and functionCorreia, Marta Raquel Cardoso LopesdoctoralThesisembargoedAccess
13-Dec-2013Cambial activity and wood formation of Maritime pine in a drought-prone environment: the effect of growth rate, size and climateVieira, Joana doctoralThesisopenAccess
13-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
29-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
30-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
2004Change 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
2008Characterization of metal-resistant plant-growth promoting Bacillus weihenstephanensis isolated from serpentine soil in PortugalRajkumar, Mani ; Ma, Ying ; Freitas, Helena articleopenAccess
14-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
31-Jan-2018Corema, the amphi-Atlantic genus: belowground ecology and performanceMartins, Ana Filipa Duarte doctoralThesisembargoedAccess
2013Developmentally-programmed division of labour in the clonal invader Carpobrotus edulisRoiloa, Sergio R. ; Rodríguez-Echeverría, Susana ; Freitas, H. ; Retuerto, Rubén articleopenAccess
2006Diversity of AMF associated with Ammophila arenaria ssp. arundinacea in Portuguese sand dunesRodríguez-Echeverría, Susana ; Freitas, Helena articleopenAccess
2008The 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
2014Ecological 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 ; Rodrıíguez-Echeverría, Susana ; Freitas, Helena ; Olesen, Jens M. articleopenAccess
2014Ecological networks: delving into the architecture of biodiversityHeleno, Ruben ; Garcia, C. ; Jordano, P. ; Traveset, A. ; Gomez, J. M. ; Bluthgen, N. ; Memmott, J. ; Moora, M. ; Cerdeira, J. ; Rodriguez-Echeverria, S. ; Freitas, H. ; Olesen, J. M. articleopenAccess