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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.

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Rapid upwards spread of non-native plants in mountains across continents / Evelin Iseli in Nature Ecology & Evolution, 7 (2023) 

Public Citation [article]  inNature Ecology & Evolution > 7 (2023) . - 405-413 Titre : Rapid upwards spread of non-native plants in mountains across continents Type de document : Imprimé Auteurs : Evelin Iseli ; Chelsea Chisholm ; Jonathan Lenoir ; Sylvia Haider ; Tim Seipel ; Agustina Barros ; Anna L. Hargreaves ; Paul kardol ; Jonas J. Lembrechts ; Keith McDougall ; Irfan Rashid ; Sabine B. Rumpf ; José Ramón Arévalo ; Lohengrin A. Cavieres ; Curtis Daehler ; Pervaiz A. Dar ; Bryan Endress ; Gabi Jakobs ; Alejandra Jiménez ; Christoph Küffer ; Maritza Mihoc ; Ann Milbau ; John W. Morgan ; Bridgett J. Naylor ; Aníbal Pauchard ; Amanda Ratier Backes ; Zafar A. Reshi ; Lisa J. Rew ; Damiano Righetti ; James M. Shannon ; Graciela Valencia ; Neville G. Walsh ; Genevieve T. Wright ; Jake Alexander (1980-) Année de publication : 2023 Article en page(s) : 405-413 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : High-elevation ecosystems are among the few ecosystems worldwide that are not yet heavily invaded by non-native plants. This is expected to change as species expand their range limits upwards to fill their climatic niches and respond to ongoing anthropogenic disturbances. Yet, whether and how quickly these changes are happening has only been assessed in a few isolated cases. Starting in 2007, we conducted repeated surveys of non-native plant distributions along mountain roads in 11 regions from 5 continents. We show that over a 5- to 10-year period, the number of non-native species increased on average by approximately 16% per decade across regions. The direction and magnitude of upper range limit shifts depended on elevation across all regions. Supported by a null-model approach accounting for range changes expected by chance alone, we found greater than expected upward shifts at lower/mid elevations in at least seven regions. After accounting for elevation dependence, significant average upward shifts were detected in a further three regions (revealing evidence for upward shifts in 10 of 11 regions). Together, our results show that mountain environments are becoming increasingly exposed to biological invasions, emphasizing the need to monitor and prevent potential biosecurity issues emerging in high-elevation ecosystems. Lien pérenne : DOI : 10.1038/s41559-022-01979-6 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150556 Iseli, Evelin, Chisholm, Chelsea, Lenoir, Jonathan, Haider, Sylvia, Seipel, Tim, Barros, Agustina, Hargreaves, Anna L., kardol, Paul, Lembrechts, Jonas J., McDougall, Keith, Rashid, Irfan, Rumpf, Sabine B., Arévalo, José Ramón, Cavieres, Lohengrin A., Daehler, Curtis, Dar, Pervaiz A., Endress, Bryan, Jakobs, Gabi, Jiménez, Alejandra, Küffer, Christoph, Mihoc, Maritza, Milbau, Ann, Morgan, John W., Naylor, Bridgett J., Pauchard, Aníbal, Ratier Backes, Amanda, Reshi, Zafar A., Rew, Lisa J., Righetti, Damiano, Shannon, James M., Valencia, Graciela, Walsh, Neville G., Wright, Genevieve T., Alexander, Jake (1980-) 2023 Rapid upwards spread of non-native plants in mountains across continents. Nature Ecology & Evolution, 7: 405-413.

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Consultable Article (2023) URL