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Detalhes Referência

Tipo
Artigos em Revista

Tipo de Documento
Artigo Completo

Título
Why so many flowers? A preliminary assessment of mixed pollination strategy enhancing sexual reproduction of the invasive Acacia longifolia in Portugal

Participantes na publicação
Manuela Giovanetti (Author)
cE3c
Margarida Ramos (Author)
Dep. Biologia Vegetal
cE3c
Cristina Máguas (Author)
Dep. Biologia Vegetal
cE3c

Resumo
Abstract\nAcacia longifolia, a native legume from Australia, has been introduced in many European countries and elsewhere, thus becoming one of the most important global invasive species. In Europe, its flowering occurs in a period unsuitable for insect activity: nonetheless it is considered entomophilous. Floral traits of this species are puzzling: brightly coloured and scented as liked by insects, but with abundant staminate small-sized flowers and relatively small pollen grains, as it is common in anemophilous species. Invasion processes are especially favoured when reshaping local ecological networks, thus the interest in understanding pollination syndromes associated with invasive plant species that may facilitate invasiveness. Moreover, a striking difference exists between its massive flowering and relatively poor seed set. We introduced a novel approach: first, we consider the possibility that a part of the pollination success is carried on by wind and, second, we weighted the ethological perspective of the main pollinator. During the flowering season of A. longifolia (February–April 2016), we carried on exclusion experiments to detect the relative contribution of insects and wind. While the exclusion experiments corroborated the need for pollen vectors, we actually recorded a low abundance of insects. The honeybee, known pollinator of acacias, was relatively rare and not always productive in terms of successful visits. While wind contributed to seed set, focal observations confirmed that honeybees transfer pollen when visiting both the inflorescences to collect pollen and the extrafloral nectaries to collect nectar. The mixed pollination strategy of A. longifolia may then be the basis of its success in invading Portugal's windy coasts.

Data de Submissão/Pedido
2017-09-28
Data de Aceitação
2018-02-22
Data de Publicação
2018-03-28

Suporte
Web Ecology

Identificadores da Publicação
ISSN - 1399-1183

Editora
Copernicus GmbH

Volume
18
Fascículo
1

Página Inicial
47
Página Final
54

Identificadores do Documento
URL - http://dx.doi.org/10.5194/we-18-47-2018
DOI - https://doi.org/10.5194/we-18-47-2018

Identificadores de Qualidade
SCIMAGO Q3 (2018) - 0.283 - Ecology, Evolution, Behavior and Systematics
SCIMAGO Q3 (2018) - 0.283 - Ecology


Exportar referência

APA
Manuela Giovanetti, Margarida Ramos, Cristina Máguas, (2018). Why so many flowers? A preliminary assessment of mixed pollination strategy enhancing sexual reproduction of the invasive Acacia longifolia in Portugal. Web Ecology, 18, 47-54. ISSN 1399-1183. eISSN . http://dx.doi.org/10.5194/we-18-47-2018

IEEE
Manuela Giovanetti, Margarida Ramos, Cristina Máguas, "Why so many flowers? A preliminary assessment of mixed pollination strategy enhancing sexual reproduction of the invasive Acacia longifolia in Portugal" in Web Ecology, vol. 18, pp. 47-54, 2018. 10.5194/we-18-47-2018

BIBTEX
@article{37820, author = {Manuela Giovanetti and Margarida Ramos and Cristina Máguas}, title = {Why so many flowers? A preliminary assessment of mixed pollination strategy enhancing sexual reproduction of the invasive Acacia longifolia in Portugal}, journal = {Web Ecology}, year = 2018, pages = {47-54}, volume = 18 }