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COORDINATION: Filipe Xavier Catry and Francisco Castro Rego (CEABN InBIO).

OTHER INSTITUTIONS: Câmara Municipal de Coruche - Observatório do Sobreiro e da Cortiça (CMC-OSC), Associação de Produtores Florestais do Concelho de Coruche e Limítrofes (APFC), Centro de Estudos Florestais (CEF-ISA), Instituto Nacional de Investigação Agrária e Veterinária (INIAV).

Initial experimental design: Filipe Catry and Francisco Rego (CEABN-ISA), Rodrigo Fernandes and Dionísio Mendes (CMC-OSC), Conceição Silva and Mariana Telles (APFC).

Field work: Filipe Catry (coordination), Ernesto Deus, Hamza Saadi, João Jorge, Miguel Sampaio and Ricardo Silva (CEABN-ISA), Ana Poeiras, David Rosado, Mariete Cardoso, Nuno Cambaio and Vanessa Inácio (CMC-OSC), António Ramos and Sofia Ramos (APFC).

Office and laboratory work: Filipe Catry (coordination), Anna Masala, Ana Rafael, Clarine Rocha, Francisco Moreira, Inês Castanheira, Jéssica Caetano, Joana Respício, Manuela Branco and Pedro Xavier (CEABN/CEF-ISA), Ana Silva, Edmundo Sousa, Filomena Nóbrega, Helena Bragança, Joana Henriques and Pedro Naves (INIAV).

Administrative support: Mariete Cardoso, Patrícia Moreira e Susana Cruz (CMC), Ana Pires, Anabela Pereira e Filipa Albino (CEABN-ISA), Fernanda Ferreira e Cristina Santos (ADISA)

ABSTRACT

This project is the result of collaboration between the Centre for Applied Ecology Prof. Baeta Neves – School of Agriculture (CEABN-ISA), the Municipality of Coruche - Observatory for Cork Oak and Cork (CMC-OSC) and the Forest Producers Association of Coruche and Adjacent Municipalities (APFC). The project also has the collaboration of researchers from the Forest Research Centre (CEF-ISA) and the National Institute of Agricultural and Veterinary Research (INIAV).

The project started in 2013 and aims to improve our knowledge about cork oak ecology (Quercus suber), more specifically about the effects of fire and post-fire management in forest stands of this species affected by wildfires. We intend to understand better the resistance and resilience of cork oak to fire, and particularly the relationships between the success of the post-fire recovery and forest management practices (cutting, thinning, bark stripping), or the presence of pests and diseases (Platypus cylindrus, Xyleborus spp., Coroebus spp., Biscogniauxia mediterranea).

RESULTS

Some of the results of this study, which is still ongoing, can be found in the documents provided here. The results obtained so far show that the fire that occurred on July 2013 in Herdade dos Concelhos in Coruche, had a strong impact on existing cork oak stands.

In the fifth fall after the fire about half of all the cork oaks monitored were dead and only 14% had crown regeneration (crown resprouting). But the post-fire responses were very different between exploited and unexploited trees (debarked and never debarked, respectively). Among the exploited cork oaks, which represent the vast majority of existing trees, only 38% survived and only 4% had crown regeneration, while among unexploited trees 99% survived and 56% had crown regeneration.

Although many cork oaks showed crown regeneration shortly after the fire (~ 80%), most of them dried up in the following years, with most of the surviving trees regenerating only from the base of the trunk (basal resprouts). In the early years after the fire many of the cork oaks were attacked by insects, namely ambrosia beetles, considered the only forest pests capable of attacking and killing adult cork oaks. In general, the cork oak trees that recovered better after the fire were unexploited, had thicker bark, had smaller diameter and lower debarking height, were less carbonized, and were located in areas with lower basal area (lower density of pines and cork oaks).

KNOWLEDGE TRANSFER:

Publications in international journals:

Catry, F.X., Branco, M., Sousa, E., Caetano, J., Naves, P., Nóbrega, F. (2017). Presence and dynamics of ambrosia beetles and other xylophagous insects in a Mediterranean cork oak forest following fire. Forest Ecology and Management 404, 45-54. [DOI]

Publications in national journals:

Catry FX (2019). O sobreiro, a gestão florestal e o fogo. Geia, 1, 19-24. [Download] 

Presentations and publications in scientific/technical meetings:

Catry FX (2018). O sobreiro e o fogo: o que esperar após um incêndio. Conferência: Montado de sobro: meia hora sobre. FICOR – Feira Internacional da Cortiça. Coruche, Portugal. (Invited oral presentation).

Catry, F.X. (2017). Dinâmicas na recuperação de povoamentos florestais de sobreiro após incêndio. Workshop: O papel da gestão agroflorestal na prevenção e recuperação pós-fogo em montados, 23 November, Grândola, Portugal. (Invited oral presentation).

Catry, F.X., Branco, M., Sousa, E., Moreira, F., Rego, F., Cardoso, M. (2017). Presença e dinâmicas de insectos xilófagos em povoamentos florestais de sobreiro: efeitos do fogo e implicações para a gestão. Livro de Resumos do Seminário Pragas e Doenças Emergentes em Sistemas Florestais, 8 June, Instituto Superior de Agronomia, Lisboa, Portugal, pp: 23-26. (Oral presentation). [Download]

Rego, F.C., Catry, F.X. (2017). Effects of fire and forest management in cork oak forest stands - Herdade dos Concelhos. EcoHCC17 - 4th International Conference on Ecohydrology, Soil and Climate Change, 21-23 September, Figueira da Foz, Portugal. (Invited oral presentation).

Catry, F.X., Branco, M., Cardoso, M., Inácio, V., Caetano, J., Castanheira, I., Rafael, A., Sousa, E. (2016). Bark and wood borer insects in cork oak forests after wildfire. Book of Abstracts of the World Congress Silvopastoral Systems 2016, 27-30 September, Évora, Portugal, pp: 119. (Oral presentation). [Download] 

Catry, F.X., Moreira, F., Rego, F., Branco, M., Sousa, E. (2014). Fire-induced bark beetle attacks in Mediterranean cork oak forests: which factors drive host selection? Abstracts of the International Conference on Mediterranean Ecosystems - Medecos XIII, 6-9 October, Olmué, Chile, pp: 117. (Poster). [Download] 

Social Networks:

Página do Projecto no ResearchGate  [LINK]