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Detalhes Referência

Tipo
Artigos em Revista

Tipo de Documento
Artigo Completo

Título
Relationship between recruitment and mother plant vitality in the alien species Acacia cyclops A. Cunn. ex G. Don

Participantes na publicação
Emilio Badalamenti (Author)
Luciano Gristina (Author)
Tommaso La Mantia (Author)
Agata Novara (Author)
Salvatore Pasta (Author)
Marco Lauteri (Author)
Patricia Fernandes (Author)
Otilia Correia (Author)
Dep. Biologia Vegetal
cE3c
Cristina Máguas (Author)
Dep. Biologia Vegetal
cE3c
cE3c

Resumo
Acacia cyclops is a widespread invader in Mediterranean-climate regions. However, although its naturalization in the Mediterranean Basin dates back only a few years ago, and the invasion process has not been studied hitherto. We investigated seedlings recruitment strategy adopted by A. cyclops in a small island (Lampedusa, Italy) where its natural regeneration was strictly confined under mother plants canopy. Healthy plants (DCP), plants at incipient senescence (SCP) and dead plants (DP) were distinguished according to vitality and canopy status. Living plants were also characterized in relation to leaf C and N isotope composition. Regeneration pattern (seedlings and saplings abundance) was related to the microclimatic differences (soil temperature, air temperature and humidity, soil nutrients, light) observed between canopies and adjacent open areas, and among canopy types. Living canopies ensure milder conditions, reducing extreme values as well as fluctuations between night and day. However, beneath canopies (DP, SCP and DCP) seedlings may benefit from significantly higher soil nutrients content than in the outside, while light availability was much higher under DP. Saplings to seedlings ratio was found to be around 12 under DP, while under SCP it was slightly higher than 1, and just less than 0.5 under DCP. Moreover, saplings growth was significantly higher under SCP and DP, suggesting a prominent role of light in driving seedlings recruitment. Stable isotope analyses of C and N provided ecophysiological information in relation to changes in canopies structure. Thus, while seedling stage appears to be more nutrient-limited, subsequent sapling stage is much more light-limited. Although the species is not yet displaying an invasive spreading on the island, our study provides clear evidence that senescent canopies are better facilitators than healthy in preserving the invasive potential of A. cyclops. This finding suggests some best practices in order to gradually reduce the presence of the alien species within its pristine nuclei of introduction.

Data de Publicação
2014-11

Suporte
Forest Ecology and Management

Identificadores da Publicação
ISSN - 0378-1127

Editora
Elsevier BV

Volume
331

Número de Páginas
7
Página Inicial
237
Página Final
244

Identificadores do Documento
DOI - https://doi.org/10.1016/j.foreco.2014.08.016
URL - http://dx.doi.org/10.1016/j.foreco.2014.08.016

Identificadores de Qualidade
SCIMAGO Q1 (2016) - 1.662 - Forestry
SCOPUS Q1 (2015) - 1.737 - Forestry

Keywords
Seedling establishment Soil fertility Mediterranean islands Stable isotopes Australian Acacias


Exportar referência

APA
Emilio Badalamenti, Luciano Gristina, Tommaso La Mantia, Agata Novara, Salvatore Pasta, Marco Lauteri, Patricia Fernandes, Otilia Correia, Cristina Máguas, (2014). Relationship between recruitment and mother plant vitality in the alien species Acacia cyclops A. Cunn. ex G. Don. Forest Ecology and Management, 331, 237-244. ISSN 0378-1127. eISSN . http://dx.doi.org/10.1016/j.foreco.2014.08.016

IEEE
Emilio Badalamenti, Luciano Gristina, Tommaso La Mantia, Agata Novara, Salvatore Pasta, Marco Lauteri, Patricia Fernandes, Otilia Correia, Cristina Máguas, "Relationship between recruitment and mother plant vitality in the alien species Acacia cyclops A. Cunn. ex G. Don" in Forest Ecology and Management, vol. 331, pp. 237-244, 2014. 10.1016/j.foreco.2014.08.016

BIBTEX
@article{42125, author = {Emilio Badalamenti and Luciano Gristina and Tommaso La Mantia and Agata Novara and Salvatore Pasta and Marco Lauteri and Patricia Fernandes and Otilia Correia and Cristina Máguas}, title = {Relationship between recruitment and mother plant vitality in the alien species Acacia cyclops A. Cunn. ex G. Don}, journal = {Forest Ecology and Management}, year = 2014, pages = {237-244}, volume = 331 }