Spreading of the invasive Carpobrotus aff. acinaciformis in Mediterranean ecosystems: The advantage of performing in different light environments
Question: Do specific environmental conditions affect the performance and growth dynamics of one of the most invasive taxa (Carpobrotus aff. acinaciformis) on Mediterranean islands? Location: Four populations located on Mallorca, Spain. Methods: We monitored growth rates of main and lateral shoots of this stoloniferous plant for over two years (2002-2003), comparing two habitats (rocky coast vs. coastal dune) and two different light conditions (sun vs. shade). In one population of each habitat type, we estimated electron transport rate and the level of plant stress (maximal photochemical efficiency Fv/Fm) by means of chlorophyll fluorescence. Results: Main shoots of Carpobrotus grew at similar rates at all sites, regardless habitat type. However, growth rate of lateral shoots was greater in shaded plants than in those exposed to sunlight. Its high phenotypic plasticity, expressed in different allocation patterns in sun and shade individuals, and its clonal growth which promotes the continuous search of available resources, contributed to a good growth and photochemical efficiency of Carpobrotus in the relatively moderate shade of the understories of Mediterranean shrublands and woodlands. Each main shoot of a Carpobrotus clone (which can have several dozens main shoots) grows ca. 40 cm per year, which explains its vigorous habitat colonization capacity. Conclusion: The highly plastic morphological response to different light regimes of this taxon contributes to a rapid colonization of heterogeneous coastal Mediterranean environments spreading well beyond the open sand dune systems where it has been often reported. © IAVS; Opulus Press.
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Opulus Press
2008-02
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Assuntos: | Balearic Islands, Photochemical efficiency, Clonal growth, Colonization rate, Invasion pattern, Aizoaceae, |
Acesso em linha: | http://hdl.handle.net/10261/110958 |
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dig-ccma-es-10261-1109582020-05-21T12:16:24Z Spreading of the invasive Carpobrotus aff. acinaciformis in Mediterranean ecosystems: The advantage of performing in different light environments Traveset, Anna Moragues, Eva Valladares Ros, Fernando Balearic Islands Photochemical efficiency Clonal growth Colonization rate Invasion pattern Aizoaceae Question: Do specific environmental conditions affect the performance and growth dynamics of one of the most invasive taxa (Carpobrotus aff. acinaciformis) on Mediterranean islands? Location: Four populations located on Mallorca, Spain. Methods: We monitored growth rates of main and lateral shoots of this stoloniferous plant for over two years (2002-2003), comparing two habitats (rocky coast vs. coastal dune) and two different light conditions (sun vs. shade). In one population of each habitat type, we estimated electron transport rate and the level of plant stress (maximal photochemical efficiency Fv/Fm) by means of chlorophyll fluorescence. Results: Main shoots of Carpobrotus grew at similar rates at all sites, regardless habitat type. However, growth rate of lateral shoots was greater in shaded plants than in those exposed to sunlight. Its high phenotypic plasticity, expressed in different allocation patterns in sun and shade individuals, and its clonal growth which promotes the continuous search of available resources, contributed to a good growth and photochemical efficiency of Carpobrotus in the relatively moderate shade of the understories of Mediterranean shrublands and woodlands. Each main shoot of a Carpobrotus clone (which can have several dozens main shoots) grows ca. 40 cm per year, which explains its vigorous habitat colonization capacity. Conclusion: The highly plastic morphological response to different light regimes of this taxon contributes to a rapid colonization of heterogeneous coastal Mediterranean environments spreading well beyond the open sand dune systems where it has been often reported. © IAVS; Opulus Press. This study is part of EPIDEMIE (Exotic Plant Invasions: Deleterious Effects on Mediterranean Island Ecosystems), a research project supported by the European Commission and part of RINVE (Biological determinants of the risk of plant invasions) and RASINV (CGL2004-04884-C02-02) both funded by the Spanish Ministry of Education and Science Peer Reviewed 2015-02-23T08:58:59Z 2015-02-23T08:58:59Z 2008-02 2015-02-23T08:58:59Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.3170/2007-7-18303 issn: 1402-2001 Applied Vegetation Science 11(1): 45-54 (2008) http://hdl.handle.net/10261/110958 10.3170/2007-7-18303 http://dx.doi.org/10.3170/2007-7-18303 none Opulus Press International Association for Vegetation Science Wiley-Blackwell |
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Balearic Islands Photochemical efficiency Clonal growth Colonization rate Invasion pattern Aizoaceae Balearic Islands Photochemical efficiency Clonal growth Colonization rate Invasion pattern Aizoaceae |
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Balearic Islands Photochemical efficiency Clonal growth Colonization rate Invasion pattern Aizoaceae Balearic Islands Photochemical efficiency Clonal growth Colonization rate Invasion pattern Aizoaceae Traveset, Anna Moragues, Eva Valladares Ros, Fernando Spreading of the invasive Carpobrotus aff. acinaciformis in Mediterranean ecosystems: The advantage of performing in different light environments |
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Question: Do specific environmental conditions affect the performance and growth dynamics of one of the most invasive taxa (Carpobrotus aff. acinaciformis) on Mediterranean islands? Location: Four populations located on Mallorca, Spain. Methods: We monitored growth rates of main and lateral shoots of this stoloniferous plant for over two years (2002-2003), comparing two habitats (rocky coast vs. coastal dune) and two different light conditions (sun vs. shade). In one population of each habitat type, we estimated electron transport rate and the level of plant stress (maximal photochemical efficiency Fv/Fm) by means of chlorophyll fluorescence. Results: Main shoots of Carpobrotus grew at similar rates at all sites, regardless habitat type. However, growth rate of lateral shoots was greater in shaded plants than in those exposed to sunlight. Its high phenotypic plasticity, expressed in different allocation patterns in sun and shade individuals, and its clonal growth which promotes the continuous search of available resources, contributed to a good growth and photochemical efficiency of Carpobrotus in the relatively moderate shade of the understories of Mediterranean shrublands and woodlands. Each main shoot of a Carpobrotus clone (which can have several dozens main shoots) grows ca. 40 cm per year, which explains its vigorous habitat colonization capacity. Conclusion: The highly plastic morphological response to different light regimes of this taxon contributes to a rapid colonization of heterogeneous coastal Mediterranean environments spreading well beyond the open sand dune systems where it has been often reported. © IAVS; Opulus Press. |
format |
artículo |
topic_facet |
Balearic Islands Photochemical efficiency Clonal growth Colonization rate Invasion pattern Aizoaceae |
author |
Traveset, Anna Moragues, Eva Valladares Ros, Fernando |
author_facet |
Traveset, Anna Moragues, Eva Valladares Ros, Fernando |
author_sort |
Traveset, Anna |
title |
Spreading of the invasive Carpobrotus aff. acinaciformis in Mediterranean ecosystems: The advantage of performing in different light environments |
title_short |
Spreading of the invasive Carpobrotus aff. acinaciformis in Mediterranean ecosystems: The advantage of performing in different light environments |
title_full |
Spreading of the invasive Carpobrotus aff. acinaciformis in Mediterranean ecosystems: The advantage of performing in different light environments |
title_fullStr |
Spreading of the invasive Carpobrotus aff. acinaciformis in Mediterranean ecosystems: The advantage of performing in different light environments |
title_full_unstemmed |
Spreading of the invasive Carpobrotus aff. acinaciformis in Mediterranean ecosystems: The advantage of performing in different light environments |
title_sort |
spreading of the invasive carpobrotus aff. acinaciformis in mediterranean ecosystems: the advantage of performing in different light environments |
publisher |
Opulus Press |
publishDate |
2008-02 |
url |
http://hdl.handle.net/10261/110958 |
work_keys_str_mv |
AT travesetanna spreadingoftheinvasivecarpobrotusaffacinaciformisinmediterraneanecosystemstheadvantageofperformingindifferentlightenvironments AT moragueseva spreadingoftheinvasivecarpobrotusaffacinaciformisinmediterraneanecosystemstheadvantageofperformingindifferentlightenvironments AT valladaresrosfernando spreadingoftheinvasivecarpobrotusaffacinaciformisinmediterraneanecosystemstheadvantageofperformingindifferentlightenvironments |
_version_ |
1777662879773753344 |