Portail documentaire

Disturbance is the key to plant invasions in cold environments / Jonas J. Lembrechts in Proceedings of the National Academy of Sciences of the United States of America, 113 (49) (2016) 

Public Citation [article]  inProceedings of the National Academy of Sciences of the United States of America > 113 (49) (2016) . - 14061-14066 Titre : Disturbance is the key to plant invasions in cold environments Type de document : Imprimé Auteurs : Jonas J. Lembrechts ; Aníbal Pauchard ; Jonathan Lenoir ; Martin A. Nuñez ; Charly Geron ; Arne Ven ; Pablo Bravo-Monasterio ; Ernesto Teneb ; Ivan Nijs ; Ann Milbau Année de publication : 2016 Article en page(s) : 14061-14066 Langues : Français (fre) Catégories : [Thématique] Plantes subspontanées, naturalisées, envahissantes [Thématique] Changement climatique Résumé : Until now, nonnative plant species were rarely found at high elevations and latitudes. However, partly because of climate warming, biological invasions are now on the rise in these extremely cold environments. These plant invasions make it timely to undertake a thorough experimental assessment of what has previously been holding them back. This knowledge is key to developing efficient management of the increasing risks of cold-climate invasions. Here, we integrate human interventions (i.e., disturbance, nutrient addition, and propagule input) and climatic factors (i.e., temperature) into one seed-addition experiment across two continents: the subantarctic Andes and subarctic Scandinavian mountains (Scandes), to disentangle their roles in limiting or favoring plant invasions. Disturbance was found as the main determinant of plant invader success (i.e., establishment, growth, and flowering) along the entire cold-climate gradient, explaining 40–60% of the total variance in our models, with no indication of any facilitative effect from the native vegetation. Higher nutrient levels additionally stimulated biomass production and flowering. Establishment and flowering displayed a hump-shaped response with increasing elevation, suggesting that competition is the main limit on invader success at low elevations, as opposed to low-growing-season temperatures at high elevations. Our experiment showed, however, that nonnative plants can establish, grow, and flower well above their current elevational limits in high-latitude mountains. We thus argue that cold-climate ecosystems are likely to see rapid increases in plant invasions in the near future as a result of a synergistic interaction between increasing human-mediated disturbances and climate warming. Identifiant pérenne : DOI : 10.1073/pnas.1608980113 Lembrechts, J.J., Pauchard, A., Lenoir, J., Nuñez, M.A., Geron, C., Ven, A., Bravo-Monasterio, P., Teneb, E., Nijs, I., Milbau, A., 2016 - Disturbance is the key to plant invasions in cold environments ; Proceedings of the National Academy of Sciences of the United States of America, 113 (49) : 14061-14066.

Documents numériques

Consultable Article (2016) URL

Global guidelines for the sustainable use of non-native trees to prevent tree invasions and mitigate their negative impacts / Giuseppe Brundu in Neobiota, 61 (2020) 

Public Citation [article]  inNeobiota > 61 (2020) . - 65-116 Titre : Global guidelines for the sustainable use of non-native trees to prevent tree invasions and mitigate their negative impacts Type de document : Électronique Auteurs : Giuseppe Brundu ; Aníbal Pauchard ; Petr Pyšek ; Jan Pergl (1977-) ; Anja M. Bindewald ; Antonio Brunori ; Susan Canavan ; Thomas Campagnaro ; Laura Celesti-Grapow ; Michele de Sá Dechoum ; Jean-Marc Dufour-Dror ; Franz Essl (1973-) ; Luke S. Flory ; Piero Genovesi (1960-) ; Francesco Guarino ; Liu Guangzhe ; Philip Eric Hulme ; Heinke Jäger ; Christopher J. Kettle ; Frank Krumm ; Bárbara Langdon ; Katharina Lapin ; Vanessa Lozano ; Johannes J. Le Roux ; Ana Novoa ; Martin A. Nuñez ; Annabel J. Porté ; Joaquim S. Silva ; Urs Schaffner ; Tommaso Sitzia ; Rob Tanner ; Ntakadzeni Tshidada ; Michaela Vitkova ; Marjana Westergren ; John R.U. Wilson ; David Mark Richardson (1958-) Année de publication : 2020 Article en page(s) : 65-116 Langues : Anglais (eng) Catégories : [Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : Sustainably managed non-native trees deliver economic and societal benefits with limited risk of spread to adjoining areas. However, some plantations have launched invasions that cause substantial damage to biodiversity and ecosystem services, while others pose substantial threats of causing such impacts. The challenge is to maximise the benefits of non-native trees, while minimising negative impacts and preserving future benefits and options. A workshop was held in 2019 to develop global guidelines for the sustainable use of non-native trees, using the Council of Europe – Bern Convention Code of Conduct on Invasive Alien Trees as a starting point. The global guidelines consist of eight recommendations: 1) Use native trees, or non-invasive nonnative trees, in preference to invasive non-native trees; 2) Be aware of and comply with international, national, and regional regulations concerning non-native trees; 3) Be aware of the risk of invasion and consider global change trends; 4) Design and adopt tailored practices for plantation site selection and silvicultural management; 5) Promote and implement early detection and rapid response programmes; 6) Design and adopt tailored practices for invasive non-native tree control, habitat restoration, and for dealing with highly modified ecosystems; 7) Engage with stakeholders on the risks posed by invasive nonnative trees, the impacts caused, and the options for management; and 8) Develop and support global networks, collaborative research, and information sharing on native and non-native trees. The global guidelines are a first step towards building global consensus on the precautions that should be taken when introducing and planting non-native trees. They are voluntary and are intended to complement statutory requirements under international and national legislation. The application of the global guidelines and the achievement of their goals will help to conserve forest biodiversity, ensure sustainable forestry, and contribute to the achievement of several Sustainable Development Goals of the United Nations linked with forest biodiversity. Identifiant pérenne : HAL : hal-03162697 Brundu, G., Pauchard, A., Pyšek, P., Pergl, J., Bindewald, A.M., Brunori, A., Canavan, S., Campagnaro, T., Celesti-Grapow, L., Sá Dechoum, M.d., Dufour-Dror, J.M., Essl, F., Flory, L.S., Genovesi, P., Guarino, F., Guangzhe, L., Hulme, P.E., Jäger, H., Kettle, C.J., Krumm, F., Langdon, B., Lapin, K., Lozano, V., Le Roux, J.J., Novoa, A., Nuñez, M.A., Porté, A.J., Silva, J.S., Schaffner, U., Sitzia, T., Tanner, R., Tshidada, N., Vitkova, M., Westergren, M., Wilson, J.R.U., Richardson, D.M., 2020 - Global guidelines for the sustainable use of non-native trees to prevent tree invasions and mitigate their negative impacts ; Neobiota, 61 : 65-116.

Documents numériques

Consultable Article (2020) URL

Mountain roads shift native and non-native plant species' ranges / Jonas J. Lembrechts in Ecography, 40 (3) (2017) 

Public Citation [article]  inEcography > 40 (3) (2017) . - 353-364 Titre : Mountain roads shift native and non-native plant species' ranges Type de document : Imprimé Auteurs : Jonas J. Lembrechts ; Jake Alexander (1980-) ; Lohengrin A. Cavieres ; Sylvia Haider ; Jonathan Lenoir ; Christoph Kueffer ; Keith McDougall ; Bridgett J. Naylor ; Martin A. Nuñez ; Aníbal Pauchard ; Lisa J. Rew ; Ivan Nijs ; Ann Milbau Année de publication : 2017 Article en page(s) : 353-364 Langues : Français (fre) Catégories : [Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : Roads are known to act as corridors for dispersal of plant species. With their variable microclimate, role as corridors for species movement and reoccurring disturbance events, they show several characteristics that might influence range dynamics of both native and non-native species. Previous research on plant species ranges in mountains however seldom included the effects of roads. To study how ranges of native and non-native species differ between roads and adjacent vegetation, we used a global dataset of plant species composition along mountain roads. We compared average elevation and range width of species, and used generalized linear mixed models (GLMMs) to compile their range optimum and amplitude. We then explored differences between roadside and adjacent plots based on a species’ origin (native vs non-native) and nitrogen and temperature affinity. Most non-native species had on average higher elevational ranges and broader amplitudes in roadsides. Higher optima for non-native species were associated with high nitrogen and temperature affinity. While lowland native species showed patterns comparable to those in non-native species, highland native species had significantly lower elevational ranges in roadsides compared to the adjacent vegetation. We conclude that roadsides indeed change the elevational ranges of a variety of species. These changes are not limited to the expansion of non-native species along mountain roads, but also include both upward and downward changes in ranges of native species. Roadsides may thus facilitate upward range shifts, for instance related to climate change, and they could serve as corridors to facilitate migration of alpine species between adjacent high-elevation areas. We recommend including the effects of mountain roads in species distribution models to fine-tune the predictions of range changes in a warming climate. Identifiant pérenne : DOI : 10.1111/ecog.02200 Lembrechts, J.J., Alexander, J., Cavieres, L.A., Haider, S., Lenoir, J., Kueffer, C., McDougall, K., Naylor, B.J., Nuñez, M.A., Pauchard, A., Rew, L.J., Nijs, I., Milbau, A., 2017 - Mountain roads shift native and non-native plant species' ranges ; Ecography, 40 (3) : 353-364.

Documents numériques

Consultable Article (2017) URL