Encontros Scientia

The response of plant functional traits to climate in Mediterranean drylands: contribution to restoration and combat of desertification

Sala 2.2.14, FCUL, Lisboa

Por Alice Nunes (Post-Doc Researcher: eChanges - Research Group).

Climate change models forecast an overall increase in aridity in drylands in the near future. Drier conditions are expected to increase the vulnerability of drylands to desertification and land degradation, hampering ecosystems’ functioning, and the delivery of ecosystem services. Hence, it is crucial to understand and predict the consequences of climate change for dryland ecosystems. Functional traits determine species’ responses to environment, and their influence on ecosystem processes, thus providing a mechanistic tool to monitor ecosystems’ response to climate. To understand potential impacts of climate change on Mediterranean drylands, we modelled the response of plant functional traits to climate in Holm-oak woodlands, using a spatial climatic gradient to predict changes over time. In addition, we aimed at using this trait-based information to contribute to the improvement of land management strategies and restoration tools to mitigate desertification and land degradation in these areas. We identified nine plant traits responding to aridity along space, and validated that response over time. Increasing aridity was associated to a lower functional diversity for most traits. Inter-annual climatic fluctuations greatly affected functional trait community metrics, and functional diversity showed a similar response in space and over time to climatic limitations. Multi-trait functional diversity decreased non-linearly with aridity and responded in a more predictable way to aridity than species diversity. Thus, it can be used as an indicator to map areas at risk of desertification. We also explored the relative effect of climate, topography and soil characteristics on plant communities’ functional traits. We found that topoedaphic factors largely determine shrub encroachment, suggesting that climate change will not have a strong impact on shrub encroachment in Mediterranean drylands. We discuss land management strategies to deal with shrub encroachment in light of this result. Finally, we provide a comprehensive overview of the current restoration practice in Mediterranean drylands, showing that trait-based ecology is still poorly used in practice, particularly in restoration monitoring, where it could be a useful indicator of ecosystems functional recovery. Our findings contribute to a better prediction of climate change effects on Mediterranean drylands, and to optimize land management and restoration strategies to mitigate land degradation in these areas.

12h00-13h00
cE3c - Centro de Ecologia, Evolução e Alterações Ambientais

A sessão final da mais recente edição da cadeira Projeto Empresarial terá lugar no dia 22 de junho.

Logótipo da redeAGRO

As alterações climáticas são um dos maiores desafios que a humanidade enfrenta.

Ângela Duarte Henriques apresenta o trabalho de projeto "Cash Back Program".

Cursos Avançados cE3c 2017/2018

This course offers an overview of the different ways to measure biodiversity, and provides tips for the stratification of primary biodiversity data and the construction of variables that describe its various facets.

Por Angus Macintyre (Queen Mary, University of London) (Emeritus).

Oficina Ciência e Império na Era da Descolonização

O Ciência e Império de 2017-2018 irá concluir com um dia inteiro de conferências e debates, no ICS. Para participar, inscreva-se através do e-mail cienciaimperio@gmail.com.

Por Aymeric Baradat (École Polytechnique, Paris).

Diogo Loureiro Caetano defende a dissertação "Linear stability for differential equations with infinite delay via semigroup theory".

Encontro dirigido a profissionais e utilizadores de Estatística, académicos, investigadores e estudantes. 
 

Por Vinicius Bastazini (Post doctoral research fellow at CNRS Theoretical and Experimental Ecology Station, Moulis, France).

Por Luisa Fiorot (Università degli Studi di Padova).

Ciência 2018 - Encontro com a Ciência e Tecnologia em Portugal

A iniciativa procura debater os principais temas e desafios da agenda científica, estimulando a participação e a interação entre investigadores, setor empresarial e público em geral.

Verão na ULisboa 2018

A edição de 2018 da iniciativa Verão na ULisboa decorre nas semanas de 02 a 06 de julho (alunos do 10.º,11.º e 12.º ano) e de 9 a 13 de julho (alunos do 7.º, 8.º e 9.º ano).

Escola de Verão de Energia

Imagina que era possível experimentar um curso universitário antes de concorreres ao ensino superior.

Cursos Avançados cE3c 2017/2018

The goal of this short course is to introduce the students to the main climate change research concepts and prepare them to use available information on scenarios, impacts and adaptation.

Specific goals include:

Por Marco Masoero (Université Paris-Dauphine).

IMMR'18 - International Meeting on Marine Research 2018

The IMMR’18 is an international congress planned to communicate novel scientific knowledge on marine resources and research towards the sustainability of our planet.

Com a realização deste evento, pretende-se criar um ponto de encontro onde os primatólogos portugueses e/ou lusófonos possam trocar conhecimentos e contactos, e também criar um veículo de comunicação em português entre cientistas e cidadãos.

Hands-on Workshop on High-Throughput Microscopy

Participants will learn the basic principles of High-Throughput Microscopy (HTM) applied to RNAi and drug screening.

Frontiers in E3: cE3c Annual Meeting

In this annual event, cE3c researchers gather together to present and discuss their latest projects, scientific results and outreach initiatives, and explore novel ideas.

This joint conference will be organized by SPQ (Sociedade Portuguesa de Química) in collaboration with SEQA (Sociedad Española de Química Analítica), SEDOPTICA (Comité de Espectroscopia de la Sociedad Española de Óptica) and SEA (Sociedad de Espectroscopia Aplicada).

Cursos Avançados cE3c 2017/2018

The Lichens course is a 4 days lectures and lab classes + one day field excursion.

Candidaturas aos Prémios Científicos Universidade de Lisboa / Caixa Geral de Depósitos

Estão abertas até 10 de julho as candidaturas aos Prémios Científicos Universidade de Lisboa / Caixa Geral de Depósitos de estímulo à publicação de artigos científicos.

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