title Temporal changes in the impacts on plant communities of an invasive alien tree, Acacia longifolia
authors Marchante, H; Marchante, E; Freitas, H; Hoffmann, JH
author full name Marchante, Helia; Marchante, Elizabete; Freitas, Helena; Hoffmann, John H.
nationality nacional
source PLANT ECOLOGY
language English
document type Article
author keywords Acacia longifolia; Coastal ecosystems; Indicator species analysis; Long-term impacts; Medium-term impacts; Plant traits; Invasion chronology; Species turn over
keywords plus LONG-TERM IMPACTS; BIOLOGICAL INVASIONS; SPECIES RICHNESS; DUNE ECOSYSTEMS; SEED BANKS; DIVERSITY; MANAGEMENT; VEGETATION; SERVICES; RECOVERY
abstract Studies on the impacts of invasive plants are common but most are short term and fail to consider the temporal context of invasion. The present work investigated particular invasions on two different time scales and asked: (1) Do the impacts of an invasive tree on plant communities change after decades of invasion? (2) Are patterns of impacts dynamic over a period of five years? (3) Can multiple parameters reveal impacts that are unnoticed when single-value parameters are measured alone? Contrasting plant communities (long invaded, recently invaded and non-invaded) of a Portuguese coastal dune were compared during a 5-year period to assess the impacts of the invasive Acacia longifolia. Plant diversity, richness, cover, plant traits, indicator species analysis, similarity between areas and species turnover were analysed to reveal spatial and temporal patterns of change. Native species richness declined in both invaded areas. As invasion time increased, species shared with natural habitats decreased along with native plant cover, diversity and species turnover. Many species typical of dunes were replaced by generalists and exotics species, and richness of species with some level of nitrophily increased, particularly in recently invaded areas. Life form spectrum was radically transformed in invaded areas with several small-sized life forms being replaced by one single microphanerophyte. Germination of A. longifolia was greatest in long invaded areas. Findings show that modification of plant communities intensifies with invasion time and that invasion promotes a diversity of structural and functional changes which are dynamic over a few years (medium-term scale) but which tend to stabilize after several decades (long-term scale). An analysis of parameters in combination revealed changes that were not apparent when the same parameters were considered separately.
author address [Marchante, Helia] Escola Super Agr Coimbra, Inst Politecn Coimbra, P-3045601 Coimbra, Portugal; [Marchante, Helia; Marchante, Elizabete; Freitas, Helena] Univ Coimbra, Ctr Funct Ecol, Dept Life Sci, P-3000456 Coimbra, Portugal; [Hoffmann, John H.] Univ Cape Town, Dept Biol Sci, ZA-7700 Rondebosch, South Africa
reprint address Marchante, H (reprint author), Escola Super Agr Coimbra, Inst Politecn Coimbra, P-3045601 Coimbra, Portugal.
e-mail address hmarchante@gmail.com
researcherid number Marchante, Elizabete /D-3858-2011
orcid number Marchante, Elizabete /0000-0003-1303-7489
funding agency and grant number FCT-MCTES (Portuguese Foundation for Science and Technology); European fund FEDER [POCTI/BSE/42335/2001, PTDC/AAG-REC/4607/2012]; FCT-MCTES [SFRH/BD/24987/2005]
funding text The authors thank C. Santos for contribution in field work, J. Maia for collaboration on species identification and Francisco Lopez-Nunez for help with R. Thoughtful reviews and constructive criticisms by anonymous reviewers were greatly valued. This research was supported by FCT-MCTES (Portuguese Foundation for Science and Technology) and European fund FEDER, projects POCTI/BSE/42335/2001 and PTDC/AAG-REC/4607/2012. H.S.M. was supported by FCT-MCTES, grant SFRH/BD/24987/2005.
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cited reference count 60
times cited 4
total times cited count (wos, bci, and cscd) 4
publisher SPRINGER
publisher city DORDRECHT
publisher address VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
issn 1385-0237
29-character source abbreviation PLANT ECOL
iso source abbreviation Plant Ecol.
publication date NOV
year published 2015
volume 216
issue 11
beginning page 1481
ending page 1498
digital object identifier (doi) 10.1007/s11258-015-0530-4
page count 18
web of science category Plant Sciences; Ecology; Forestry
subject category Plant Sciences; Environmental Sciences & Ecology; Forestry
document delivery number CW7IE
unique article identifier WOS:000365170900001
CFE authors
Elizabete Marchante
Hélia Marchante