Cândida MendesUniversity of the Azores | UAc · Centro de Biotecnologia dos Açores (CBA)
Cândida Mendes
PhD
Researcher at the University of the Azores, Integrated in projects related to endemic and protected flora and vegetation
About
87
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Introduction
I have a degree in Agriculture engineering, master in Environment management and conservation and pHD in Agrarian Sciences, studying peatland restoration strategies in Azores islands (Portugal).
I have been participated in several projects related with Azorean flora and vegetation, mainly in wetlands and peatlands ecology and conservation.
Additional affiliations
September 1998 - April 2016
Education
January 2014 - May 2018
January 2008 - January 2011
October 1991 - January 1998
Publications
Publications (87)
During more than five centuries of human colonization, 50% of original peatlands in Azores have been destroyed or degraded, mainly due to pasture use, resulting in landscape changes and a loss of ecosystem biodiversity and services. This study aims to identify the most effective measures in the recovery and to detect initial responses (2 years). Th...
Descrição das espécies de Sphagnum que existem nos Açores (em portugugues).
A ação “Praia com Ciência” decorreu no âmbito da iniciativa da Direção Regional da
Ciência e Tecnologia intitulada “Mês da Ciência” que envolveu uma série de
atividades de difusão da cultura científica e tecnológica.
Esta apreserntação pretendeu a divulgação de zonas humidas demonstrando a sua importância nos Açores.
Pereira, Dinis; Dias, Eduardo; Mendes, Cândida (2022). Aplicação de Imagens de Satélite na Deteção e Monitorização de Flora e Habitats-Açores. O fascínio de ver para além da vista humana. Palestra no âmbito da iniciativa Espaço vai à Escola 2022 (outubro e novembro) - Ciência Viva - ESERO Portugal, com a apresentação em várias escolas (ilhas e Port...
Na ausência de interferência humana, as zonas de altitude (acima dos 500 m) dos Açores seriam ocupadas quase exclusivamente por turfeiras. Na ilha Terceira estas ocupam 2766 ha, muito abaixo da sua área potencial de cerca de 8035 ha. A sua principal ameaça é o uso inadequado do solo, com a transformação de grandes áreas de turfeiras em pastagens e/...
Neste estudo foram selecionadas turfeiras degradadas pelo pastoreio onde esta atividade cessou e deram início processos de sucessão regenerativa. Para comparação foram igualmente selecionadas turfeiras naturais. Pretendemos compreender as dinâmicas ao longo da sucessão secundária, utilizando indicadores como estrutura, flora, vegetação, acumulação...
Given the high precipitation verified in the Azores, peatlands, as water retention structures, are promoters of landscape balance, reducing the frequency of major events such as landslides. However, these ecosystems face increased land-use change disturbances that are placing the future security of these critical ecosystem services in doubt. This s...
Presentation, invited by EBS Biscoitos, integrated in the Eco-Schools programme. It was an Environmental Education action for 8th grade students of that institution. The main theme was Azorean biodiversity with special focus on endemic species.
The role of women in science - description of a personal experience (advanced level). Communication to 11th and 12th year science students. Invited by Jerónimo de Andrade Secondary School in Angra do Heroismo.
The role of women in science - description of a personal experience. Communication for 8th and 9th grade science students. Invited by Jerónimo de Andrade Secondary School in Angra do Heroismo.
The Criação do Filipe peatland complex on Terceira Island (Azores) includes a fragmented network of interconnected peatlands that have persisted over time within an agriculture-dominated landscape. This study identifies a number of human pressures including cattle grazing in and around the mire, a high population density of rabbits, high cover of e...
Capítulo descritivo da Vegetação dos Açores.
A importância da paisagem na conservação da biodiversidade, em meios insulares. CONNECT.GENE PROJECT. Palestra online da IV Feira de Ambiente, promovida pelo Município da Praia da Vitória, de 25 de maio a 04 de junho de 2021.
A importância da paisagem na conservação da biodiversidade em meios insulares (vídeo da apresentação).
Contributo para a noite do investigador com gravação de um vídeo testemunhando a experiência pessoal na Ciência, a convite do Observatório do ambiente dos Açores, a novembro de 2020. Tema deste vídeo de cariz educacional é o restauro de Turfeiras.
The study central goal was to analyze secondary succession in a degraded peatland: (1) Sphagnum distribution trends and (2) successional patterns. Main study sites were adjacent abandoned pastures, where grazing was carried out in former peatland and where degradation had occurred, hereafter referred as degraded peatland. (1) Degraded peatland was...
The objective is to estimate the actual and potential hydrological services provided by the peatlands of Flores and Terceira islands. Peatlands were identified through the distribution of Sphagnum, obtained by a spectral signature from satellite image analysis. The results show an actual distribution of natural peatlands of 2766 and 2414 ha, for Te...
The study reported here used spatial analysis to assess the effectiveness of the legal nature protection framework in supporting the conservation of peatlands on Terceira Island (Azores archipelago, Portugal) and identify potential improvements. Terceira has 3011 ha of peatland, of which 44 % is forested. Bogs and fens account for 14 % and 3 % of t...
Directive Habitats monitoring: Mapping and assessment advanced methods applied to Azores habitats. Apresentação. XI International Meeting of Phytosociology. Natural and semi-natural habitats of the Natura 2000 network. Faro (Portugal), 10 e 11 de Setembro de 2019. Auditório da Comissão de Coordenação e Desenvolvimento Regional do Algarve (CCDR Alga...
This study focused on regenerative succession dynamics on pastured degraded peatlands after the removal of bovine animals.
The objective is to estimate the actual and potential hydrological services provided by the peatlands of Flores and Terceira islands. Peatlands were identified through the distribution of Sphagnum, obtained by a spectral signature from satellite image analysis. The results show an actual distribution of natural peatlands of 2 766 ha and 2 414 ha, f...
The objective is to estimate the actual and potential hydrological services provided by the peatlands of Flores and Terceira islands. Peatlands were identified through the distribution of Sphagnum, obtained by a spectral signature from satellite image analysis. The results show an actual distribution of natural peatlands of 2 766 ha and 2 414 ha, f...
13. Sucessão Regenerativa de Turfeiras Pastoreadas
Cândida Mendes1, Eduardo Dias1 e Line Rochefort2
1 – CBA Centro de Biotecnologia, Faculdade de Ciências Agrárias e do Ambiente da Universidade dos Açores. Rua Capitão João d'Ávila. 9700-042 Angra do Heroísmo. Portugal.
2 - Université Laval Groupe de Recherche en Écologie des Tourbières, Canada....
Descrição dos valores e importância das Turfeiras dos Açores. Apresentação em aula para licenciatura de Guias da Natureza. Universidade dos Açores.
Ameaças e distúrbios das turfeiras. Apresentação em contexto de aulas. Universidade dos Açores.
Descrição dos tipos de Turfeiras dos Açores. Apresentação em aula para licenciatura de Guias da natureza. Universidade dos Açores.
Apresentação em contexto de aulas. Universidade dos Açores.
Cartography of Azorean Ramsar areas (Cartas das áreas RAMSAR dos Açores).
Cartas das áreas RAMSAR dos Açores (Cartography of Azorean Ramsar areas) - Caldeirão do Corvo – Ilha do Corvo. Plant And Applied Ecology Group (GEVA). CBA-University of the Azores.
Cartas das áreas RAMSAR dos Açores (Cartography of Azorean Ramsar areas) - Planalto Central (Morro Alto) – Ilha das Flores. Plant And Applied Ecology Group (GEVA). CBA-University of the Azores.
Cartas das áreas RAMSAR dos Açores (Cartography of Azorean Ramsar areas) - Caldeira da Graciosa (Furnas do Enxofre) – Ilha Graciosa. Plant And Applied Ecology Group (GEVA). CBA-University of the Azores.
Cartas das áreas RAMSAR dos Açores (Cartography of Azorean Ramsar areas) - Complexo Vulcânico do Fogo – Ilha de São Miguel. Plant And Applied Ecology Group (GEVA). CBA-University of the Azores.
Cartas das áreas RAMSAR dos Açores (Cartography of Azorean Ramsar areas) - Planato Central (Pico da Esperança) – Ilha de São Jorge. Plant And Applied Ecology Group (GEVA). CBA-University of the Azores.
Cartas das áreas RAMSAR dos Açores (Cartography of Azorean Ramsar areas) - Planalto Central (Furnas do Enxofre e Algar do carvão) – Ilha Terceira. Plant And Applied Ecology Group (GEVA). CBA-University of the Azores. ISBN 978-989-95707-8-8.
Cartas das áreas RAMSAR dos Açores (Cartography of Azorean Ramsar areas) - Planalto Central (Achada) – Ilha do Pico. Plant And Applied Ecology Group (GEVA). CBA-University of the Azores. ISBN 978-989-95707-9-5.
Cartas das áreas RAMSAR dos Açores (Cartography of Azorean Ramsar areas) - Caldeira do Faial – Ilha do Faial. Plant And Applied Ecology Group (GEVA). CBA-University of the Azores.
Os resultados dos estudos efectuados neste programa de doutoramento permitiram globalmente a definição de estratégias de restauro de turfeiras adaptadas às condições ambientais e climáticas locais. As técnicas testadas na estação experimental da Lagoa do Negro podem ser transferidas para outras turfeiras pastoreadas dos Açores com o intuito de impl...
Regenerative succession of Azorean Peatlands after pasture removal.
Lecture at the invitation of Laval University in Canada to present the Azorean peatlands.
Based on the ‘European Mires Book’ of the International Mire Conservation Group (IMCG), this article provides a composite map of national datasets as the first comprehensive peatland map for the whole of Europe. We also present estimates of the extent of peatlands and mires in each European country individually and for the entire continent. A minim...
Azorean peatland regenerative sucession study. Resume of presentation.
The WETREST project objectives were to create instruments for the restoration of peatlands into conditions of greater appreciation of their regulatory and biodiversity capacities. This project arose from a growing demand for the definition of peatlands restoration strategies for Terceira, as these represent 52% of RAMSAR and are extremely important...
Currently there are innovative, fast-evolving, expeditious and inexpensive technologies and methodologies that consume few resources, such as the use of UAV (unmanned aerial vehicle) for aerial photography. The photographs were used in photogrammetry, constructing orthophotogrammetric and digital surface models, which reveal several physical charac...
CONNECT.GENE Project: a genetic landscape approach to sustain rare species connectivity, for small islands biodiversity. Biogeography and Syntaxonomy of the Atlantic Regions - Cape Verde 2017. X Encontro Internacional de Fitossociologia 5 a 7 de Novembro, cidade da Praia, ilha de Santiago, Cabo Verde.
The Ramsar Convention is an intergovernmental treaty that provides framework for national action and international cooperation for wetlands conservation and wise use. Study area was Terceira Central Plateau Ramsar (Furnas do Enxofre e Algar do Carvão - 1283 ha). Our studies arise from a growing demand on the definition of restoration strategies for...
STUDY OF SECONDARY REGENERATIVE SUCCESSION OF AZOREAN MIRES, AFTER ANTHROPOGENIC PRESSURE, AS AN ECOLOGICAL RESTORATION TOOL
Peatlands Restoration: Definition of Lagoa do Negro Experimental Field and Characterization of Implemented Experiences: The ecological restoration of a habitat is the process of assisting the recovery of an ecosystem that has been damaged, degraded, or destroyed. Owing to the fact that the restoration of complex wetland ecosystems to their former p...
The Azorean islands natural landscape is predominantly modulated by water since it is characterized by high precipitation ranges (between 4109 l/m2 at 600 m and 13.000 l/m2 at 980 m) and frequent intense fogs. The presence of placic horizon, since it limits water drainage, is other ecological factor that promotes the occurrence and development of w...
Las condiciones climáticas extremas, así como la baja disponibilidad de nutrientes,
son las razones más importantes que condicionan la aparición de brezales en el
paisaje del archipiélago de las Azores. Uno de los nutrientes más importantes en estas
formaciones arbustivas es el fósforo, que está presente en niveles bajos, lo cual limita
el crecimie...
Peatlands awareness-raising action for high school students. Invitation from Jerónimo Emiliano de Andrade Secondary School (in Portuguese).
The aims of this study were to explore the mires (peatlands) in Terceira Island of Azores, invent their vegetation and ecology, and classify the mires to the ecological groups. In the field, totally 300 mires were identified and mapped, of which 58 were selected for the detailed analysis of this study. Physical, chemical, floristic, hydrological an...
Integrated in the commemoration of the World Wetlands Day. Presentation in Portuguese describing these habitats in the Azores.
A peculiaridade das ilhas Açorianas reflecte-se em termos sensoriais de formas muito distintas. O cheiro da comida nas inúmeras festas locais, o manto de nuvens que teima tocar a terra e vestir nosso corpo, o deslumbre da paisagem retalhada fruto da implantação de pastagens, a empatia destas gentes são recordações que ficam por quem cá passa. A nat...
Este estudo decorreu nas áreas ZEC (Zonas Especiais de Conservação) Terrestres da Rede
Natura 2000 dos Açores incidindo na análise da distribuição de zonas húmidas, quer em termos
de tipos de vegetação quer em termos de formações protegidas pela Directiva dos Habitats,
tendo sido efectuada uma análise interpretativa da descrição existente dos habit...
Description of a Terceira Island peatland, near Algar do Carvão Cave
The Azores archipelago in the North Atlantic is an important area for biodiversity because it is rich in rare species and habitats, and almost undisturbed. Sanguinhal mire was originally a lake that evolved through paludification into a peat habitat. It is located inside Nature 2000 (European Union for Protection of Nature and Biodiversity, Council...
Artigo de divulgação no jornal quercus que descreve algumas das espécies invasoras existentes na ilha Terceira. Direcionado ao publico em geral.
Artigo de divulgação no jornal Quercus que descreve algumas das principais ameaças das turfeiras dos Açores. Direcionado para o publico geral.
The Azores archipelago in the North Atlantic is an extremely important area for biodiversity because it is rich in rare species and habitats distributed in vast and almost undisturbed areas. The Tamujal peatland is a small basin mire located on the central plateau of Terceira island, and it's a good example of a peatland type that was first discove...
The Azores archipelago in the North Atlantic is an extremely important area for biodiversity because it is rich in rare species and habitats, and almost undisturbed. The Lagoa do Madruga is a small basin mire located at 956 m a.s.l. on Santa Bárbara Mountain, Terceira Island. It is an extremely good example of a peatland type that was first discove...
Lagoas e Charcos. Coleção de posters relativos às Zonas Húmidas dos Açores. Dia Mundial das Zonas Húmidas – 2 de Fevereiro de 2007. Gabinete de Ecologia Vegetal e Aplicada (GEVA). DCA – Universidade dos Açores.
Turfeiras Florestadas. Coleção de posters relativos às Zonas Húmidas dos Açores. Dia Mundial das Zonas Húmidas – 2 de Fevereiro de 2007. Gabinete de Ecologia Vegetal e Aplicada (GEVA). DCA – Universidade dos Açores.
Turfeiras de Musgão (Sphagnum). Coleção de posters relativos às Zonas Húmidas dos Açores. Dia Mundial das Zonas Húmidas – 2 de Fevereiro de 2007. Gabinete de Ecologia Vegetal e Aplicada (GEVA). DCA – Universidade dos Açores.
Regatos e Ribeiras Perialpinas. Coleção de posters relativos às Zonas Húmidas dos Açores. Dia Mundial das Zonas Húmidas – 2 de Fevereiro de 2007. Gabinete de Ecologia Vegetal e Aplicada (GEVA). DCA – Universidade dos Açores.
Pequeno artigo de divulgação publicado no jornal Quercus que descreve a importância de turfeiras. Direcionado para o publico geral.
Descrição das espécies Florestais mais importantes dos Açores.
Pequeno texto de divulgação sobre turfeiras naturais dos Açores publicado no Jornal Quercus. Direcionado para o público em geral.
Spatial models on management and conservation of terrestrial protected areas of NATURA 2000 Network - Application to Azores (Flores Island).
Contributo para o conhecimento da Distribuição e Ecologia da Angelica lignescens Danton et al.
Flora do Paúl da Praia da Vitória - Elementos estruturantes dos habitats lacustres
Dias, Eduardo; Mendes, Cândida; Melo, Cecilia; Pereira, Dinis; Elias, Rui; Santos, Eunice; Elias, Sónia (2004). Plano Global de Gestão para a Rede NATURA 2000 – Açores – Áreas Terrestres (Global Management Plan for NATURA 2000 Network - Azores - Terrestrial Areas).
Informative note. Group of Plant and Applied Ecology. Department of Agrarian Scienc...
Questions
Questions (9)
We are looking for equipment to study the variation of the water table in peatlands, which could include a datalogger. Do you use any equipment or do you know any? Thank you
Hi. I am looking for advice on purchasing equipment to measure parameters in peatland waters. Some of the parameters could be total nitrogen or phosphorus. What is our experience? Thanks
Fact: Similar types of peatlands within a landscape with similar intensity and frequency of pasture presented different resistence. Looking for studies that descrive/analyses peatlands resistence factors.
For my pHD i have studied regenerative succession on a degraded peatland after the removal of grazing (during 4 years). For comparison and reference i also use information (inventories) of a natural reference peatland as well as a semi-natural peatland. After i used anual average species cover and made, for each year an ordination (canoco) analysis to evaluate species evolution throw time. This allowed me to define a tendency. For exemple the degraded inventories became "closer" to the semi natural inventories. Now, for publication the journal says i have to much images (4 pca) just for this analysis. Can anyone suggest alternatives of analysis to achieve similar results? Thank you very much
Hello. I need information about the territorial behavior of Fringilla coelebs to compare with my data. Does anyone know a good article to help me define an area? Thank you
Which species is more nutrient demanding? Agrostis castelana or Holcus lanatus?
Hi everyone. I’m working in the first article of PhD. Basically I studied secondary succession in past pastured peatlands to evaluate its possible use as restoration strategies in Azores.. However I would like to compare my data with other similar studies but I can’t find any.
So I decided to ask for help for these questions:
- Where exist pastured peatlands? (I know in U.K. , Scotland and Ireland must exist pastured peatland but I need articles)
- What are the main changes in vegetation due to pasture in bogs?
- Initial degenerative succession in pastured bogs must include predominance of herbaceous species …. Which species?
- Is there a model of secondary succession related to regeneration of pastured bogs?
- In pastured formations does the Sphagnum have the capacity persist?
- How small patches of sphagnum recover after pasture activities?
thank you
Over a period of 3 years I have annually collected data of vegetation in 250 plots of 1x1 m in an abandoned pasture (former a forested peatland). To compare I have also data on natural peatland and a recovered (intermediate) formation. Which are the best methods to establish tendencies on species behaviour through time? Thank you
I'm starting a PHD on peatland restoration in Azores. I am looking at important themes such as regenerative sucession, pasture impacts on peatlands, peatland water chemistry, and rabbit impact on vegetation. Can anyone suggest an article, study, or an investigator to contact?
