Utilize este identificador para referenciar este registo:
https://hdl.handle.net/10316/100218
Título: | The Genetics and Ecology of Post-Fire Eucalyptus globulus Recruitment in an Isolated Stand in Central Portugal | Autor: | Costa, Joana Silva, Joaquim S. Deus, Ernesto José Rodrigues Cardoso de Pinho, Simão Pinto, Joaquim F. Borralho, Nuno |
Palavras-chave: | Eucalyptus globulus; genetic diversity; kinship estimates; naturalization; paternity assignment; post-fire dispersal | Data: | 2022 | Editora: | MDPI | Projeto: | info:eu-repo/grantAgreement/FCT/POR_CENTRO/2020.09605.BD/PT/A genetic approach to understand the naturalization of Eucalyptus globulus in Portugal info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC/ASP-SIL/30435/2017/PT/Understanding the processes of naturalization of Eucalyptus globulus in Portugal through the use of remote sensing and genetic markers |
Título da revista, periódico, livro ou evento: | Forests | Volume: | 13 | Número: | 5 | Local de edição ou do evento: | Basel, Switzerland | Resumo: | Eucalyptus globulus Labill. is a widespread forest tree species, reported as naturalized across the introduced range, often showing abundant natural regeneration after wildfires. This paper studies a post-fire cohort of seedlings derived from a small, isolated E. globulus stand in central Portugal. The aim is to better understand the genetic dynamics and dispersal mechanisms of naturally established E. globulus populations in the introduced range. The seedling density at 55 m from adult trees was 12,000 ha−1, the farthest seedling being registered at 101 m. Post-fire expansion occurred in a southward direction, in accordance with predominant wind. Seedlings had significantly lower levels of genetic diversity (Ae = 5.8.; He = 0.8) than adult trees (Ae = 6.5; He = 0.8). Crossings were strongly unbalanced, with only eight trees contributing to the sampled seedlings, and one single tree contributing to 52% of these seedlings. Moreover, the co-ancestry amongst seedlings more than doubled (from θ = 0.03 to 0.076), and the population status number was around one third of the value registered for the adult population (from Ns = 16.2 to 6.6). Despite its isolation, external pollen was detected in the stand, and appears to have travelled at least 700 m, contributing to 22% of the offspring. Overall, the seedling cohort is much less diverse than the parent trees, with expected lower resilience and persistence to environmental stresses. © 2022 by the authors. Licensee MDPI, Basel, Switzerland. | URI: | https://hdl.handle.net/10316/100218 | ISSN: | 1999-4907 | DOI: | 10.3390/f13050680 | Direitos: | openAccess |
Aparece nas coleções: | I&D CFE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
forests-13-00680-v2.pdf | 2.13 MB | Adobe PDF | Ver/Abrir |
Citações SCOPUSTM
1
Visto em 1/mai/2023
Citações WEB OF SCIENCETM
1
Visto em 2/mai/2023
Visualizações de página
126
Visto em 1/out/2024
Downloads
80
Visto em 1/out/2024
Google ScholarTM
Verificar
Altmetric
Altmetric
Este registo está protegido por Licença Creative Commons