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Introduced plants of the invasive Solidago gigantea (Asteraceae) are larger and grow denser than conspecifics in the native… / Gabi Jakobs in Diversity and Distributions, 10 (2004) 

Public Citation [article]  inDiversity and Distributions > 10 (2004) . - 11-19 Titre : Introduced plants of the invasive Solidago gigantea (Asteraceae) are larger and grow denser than conspecifics in the native… Type de document : Électronique Auteurs : Gabi Jakobs ; Peter John Edwards (1948-) Année de publication : 2004 Article en page(s) : 11-19 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Mots-clés : Solidago gigantea Aiton, 1789 Résumé : Introduced plant species that became successful invaders appear often more vigorous and taller than their conspecifics in the native range. Reasons postulated to explain this better performance in the introduced range include more favourable environmental conditions and release from natural enemies and pathogens. According to the Evolution of Increased Competitive Ability hypothesis (EICA hypothesis) there is a trade-off between investment into defence against herbivores and pathogens, and investment into a stronger competitive ability. In this study, we conducted field surveys to investigate whether populations of the invasive perennial Solidago gigantea Ait (Asteraceae) differ with respect to growth and size in the native and introduced range, respectively. We assessed size and morphological variation of 46 populations in the native North American range and 45 populations in the introduced European range. Despite considerable variation between populations within continents, there were pronounced differences between continents. The average population size, density and total plant biomass were larger in European than in American populations. Climatic differences and latitude explained only a small proportion of the total variation between the two continents. The results show that introduced plants can be very distinct in their growth form and size from conspecifics in the native range. The apparently better performance of this invasive species in Europe may be the result of changed selection pressures, as implied by the EICA hypothesis. Lien pérenne : DOI : 10.1111/j.1472-4642.2004.00052.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=143212 Jakobs, Gabi, Edwards, Peter John (1948-) 2004 Introduced plants of the invasive Solidago gigantea (Asteraceae) are larger and grow denser than conspecifics in the native…. Diversity and Distributions, 10: 11-19.

Documents numériques

Consultable Article (2004) URL

Conifers as invasive aliens: a global survey and predictive framework / David Mark Richardson in Diversity and Distributions, 10 (2004) 

Public Citation [article]  inDiversity and Distributions > 10 (2004) . - 321-331 Titre : Conifers as invasive aliens: a global survey and predictive framework Type de document : Imprimé Auteurs : David Mark Richardson (1958-) ; Marcel Rejmánek (1946-) Année de publication : 2004 Article en page(s) : 321-331 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Mots-clés : Pinus sp. Résumé : We summarize information on naturalized and invasive conifers (class Pinopsida) worldwide (data from 40 countries, some with remote states/territories), and contrast these findings with patterns for other gymnosperms (classes Cycadopsida, Gnetopsida and Ginkgoopsida) and for woody angiosperms. Eighty conifer taxa (79 species and one hybrid; 13% of species) are known to be naturalized, and 36 species (6%) are ‘invasive’. This categorization is based on objective and conservative criteria relating to consistency of reproduction, distance of spread from founders, and degree of reliance on propagules from the founder population for persistence in areas well outside the natural range of species. Twenty-eight of the known invasive conifers belong to one family (Pinaceae) and 21 of these are in one genus (Pinus). The Cupressaceae (including Taxodiaceae) has six known invasive species (4%) in four genera, but the other four conifer families have none. There are also no known invasive species in classes Cycadopsida, Gnetopsida or Ginkgoopsida. No angiosperm family comprising predominantly trees and shrubs has proportionally as many invasive species as the Pinaceae. Lien pérenne : DOI : 10.1111/j.1366-9516.2004.00096.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=147232 Richardson, David Mark (1958-), Rejmánek, Marcel (1946-) 2004 Conifers as invasive aliens: a global survey and predictive framework. Diversity and Distributions, 10: 321-331.

Documents numériques

Consultable Article (2004) URL