Please use this identifier to cite or link to this item:
Title: Invasion of the Gran Canaria ravines ecosystems (Canary Islands) by the exotic species Acacia farnesiana
Authors: Ramon Arevalo, Jose
Afonso, Leila
Naranjo, Agustin 
Salas, Marcos 
Keywords: Spatial Structure
Biotic Invasions
Seed Predation
Tree, et al
Issue Date: 2010
Publisher: 1385-0237
Journal: Plant Ecology 
Abstract: The main objective of this study was to analyze if Acacia farnesiana, an introduced shrub from North and Central American tropics is spreading from areas in which it was introduced, and also to determine which animals operate as vectors for the shrub dispersion in the study area. The study site was located in southern Gran Canaria, one of the islands of the Canary Island archipelago. We selected six ravines in an area where approximately 40 plants of A. farnesiana were planted around 40 years ago. We analyzed the size structure of the population of A. farnesiana (density and biovolume) in the ravines, as well as its spatial distribution, in order to assess the degree of aggressiveness of this shrub in terms of spreading and expansion. Our results suggest that this shrub is spreading to new areas very quickly due to dispersion of seed by rabbits and an enhanced germination by the action of Mimoseste mimosae, a bruchid that decreases the germination period of the seed once it has separated from the fruit. Based on the results obtained in this study, we strongly suggest that managers of this area consider a management program to control further spread.
ISSN: 1385-0237
DOI: 10.1007/s11258-009-9633-0
Source: Plant Ecology[ISSN 1385-0237],v. 206 (2), p. 185-193
Appears in Collections:Artículos
Show full item record


checked on Jun 20, 2021


checked on Jun 20, 2021

Page view(s)

checked on Jun 20, 2021

Google ScholarTM




Export metadata

Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.