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Auteur Martin A. Nuñez |
Documents disponibles écrits par cet auteur (6)
Affiner la rechercheDisturbance 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)
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 : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
[LOTERRE-Biodiversité] Changement climatiqueRésumé : 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. Lien pérenne : DOI : 10.1073/pnas.1608980113 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150057
in Proceedings of the National Academy of Sciences of the United States of America > 113 (49) (2016) . - 14061-14066Lembrechts, Jonas J., Pauchard, Aníbal, Lenoir, Jonathan, Nuñez, Martin A., Geron, Charly, Ven, Arne, Bravo-Monasterio, Pablo, Teneb, Ernesto, Nijs, Ivan, Milbau, Ann 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
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Article (2016)URL
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 Vítková ; Marjana Westergren ; John R.U. Wilson ; David Mark Richardson (1958-) Année de publication : 2020 Article en page(s) : 65-116 Langues : Anglais (eng) Catégories : [CBNPMP-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. Lien pérenne : HAL : hal-03162697 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=147721
in Neobiota > 61 (2020) . - 65-116Brundu, Giuseppe, Pauchard, Aníbal, Pyšek, Petr, Pergl, Jan (1977-), Bindewald, Anja M., Brunori, Antonio, Canavan, Susan, Campagnaro, Thomas, Celesti-Grapow, Laura, Sá Dechoum, Michele de, Dufour-Dror, Jean-Marc, Essl, Franz (1973-), Flory, Luke S., Genovesi, Piero (1960-), Guarino, Francesco, Guangzhe, Liu, Hulme, Philip Eric, Jäger, Heinke, Kettle, Christopher J., Krumm, Frank, Langdon, Bárbara, Lapin, Katharina, Lozano, Vanessa, Le Roux, Johannes J., Novoa, Ana, Nuñez, Martin A., Porté, Annabel J., Silva, Joaquim S., Schaffner, Urs, Sitzia, Tommaso, Tanner, Rob, Tshidada, Ntakadzeni, Vítková, Michaela, Westergren, Marjana, Wilson, John R.U., Richardson, David Mark (1958-) 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
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Article (2020)URL
Titre : Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit Type de document : Imprimé Auteurs : Jonas J. Lembrechts ; Jonathan Lenoir ; Martin A. Nuñez ; Aníbal Pauchard ; Charly Geron ; Gilles Bussé ; Ann Milbau ; Ivan Nijs Année de publication : 2018 Article en page(s) : 900-909 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Enjeux de conservation des lacs d'altitude Résumé : Alpine environments are currently relatively free from non-native plant species, although their presence and abundance have recently been on the rise. It is however still unclear whether the observed low invasion levels in these areas are due to an inherent resistance of the alpine zone to invasions or whether an exponential increase in invasion is just a matter of time. Using a seed-addition experiment on north- and south-facing slopes (cf. microclimatic gradient) on two mountains in subarctic Sweden, we tested the establishment of six non-native species at an elevation above their current distribution limits and under experimentally enhanced anthropogenic pressures (disturbance, added nutrients and increased propagule pressure). We found a large microclimatic variability in cumulative growing degree days (GDD) (range 500.77°C, SD 120.70°C) due to both physiographic (e.g. aspect) and biophysical (e.g. vegetation cover) features, the latter being altered by the experimental disturbance. Non-native species establishment and biomass production were positively correlated with GDD along the studied microclimatic gradient. However, even though establishment on the north-facing slopes caught up with that on the south-facing slopes throughout the growing season, biomass production was limited on the north-facing slopes due to a shorter growing season. On top of this microclimatic effect, all experimentally imposed anthropogenic factors enhanced non-native species success. The observed microclimatic effect indicates a potential for non-native species to use warm microsites as stepping stones for their establishment towards the cold end of the gradient. Combined with anthropogenic pressures this result suggests an increasing risk for plant invasion in cold ecosystems, as such stepping stones in alpine ecosystems are likely to be more common in a future that will combine a warming climate with persistent anthropogenic pressures. Lien pérenne : DOI : 10.1111/ecog.03263 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150983
in Ecography > 41 (6) (2018) . - 900-909Lembrechts, Jonas J., Lenoir, Jonathan, Nuñez, Martin A., Pauchard, Aníbal, Geron, Charly, Bussé, Gilles, Milbau, Ann, Nijs, Ivan 2018 Microclimate variability in alpine ecosystems as stepping stones for non-native plant establishment above their current elevational limit. Ecography, 41(6): 900-909.Documents numériques
Article (2018)URL
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 : [CBNPMP-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. Lien pérenne : DOI : 10.1111/ecog.02200 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=150113
in Ecography > 40 (3) (2017) . - 353-364Lembrechts, Jonas J., Alexander, Jake (1980-), Cavieres, Lohengrin A., Haider, Sylvia, Lenoir, Jonathan, Kueffer, Christoph, McDougall, Keith, Naylor, Bridgett J., Nuñez, Martin A., Pauchard, Aníbal, Rew, Lisa J., Nijs, Ivan, Milbau, Ann 2017 Mountain roads shift native and non-native plant species' ranges. Ecography, 40(3): 353-364.Documents numériques
Article (2017)URL
Titre : Negative and positive impacts of alien macrofungi: a global scale database Type de document : Imprimé Auteurs : Miguel Monteiro ; César Capinha ; Maria Teresa Ferreira ; Martin A. Nuñez ; Luis Reino Année de publication : 2023 Article en page(s) : 23-42 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : Advances in ecological research during the last decades have led to an improved understanding of the impacts of alien species. Despite that, the effects of alien macrofungi have often received little attention and are still poorly understood. With the aim of reducing this knowledge gap, we compiled a database of the recorded socio-economic and environmental impacts of alien macrofungi. This database was compiled from all relevant sources we could identify, through an exhaustive literature review, considering the identity of known alien taxa and explicit indications of impacts of any kind. In total, 1440 records of both negative and positive impacts were collected for 374 distinct species in different regions of all continents, except Antarctica. The most frequently recorded impacts are related to the mutualistic interactions that these fungi can form with their host plants. In total 47.8% of all records refer to the indirect negative effect of these interactions, by facilitating the colonization of invasive plants, while 38.5% refer to their positive contribution to the growth of forestry species. Less frequently recorded negative impacts included ectomycorrhizal interactions with native plants, plant pathogenicity and human poisoning after ingestion. Additional positive impacts include the use as a food source by native species and human populations and commercial exploitation. Alien macrofungi are an increasingly prevalent component of human-dominated ecosystems, having a diverse array of negative and positive impacts on native biota and human population. Our database provided a first step towards the quantification and mapping of these impacts. Lien pérenne : DOI : 10.3897/neobiota.85.101770 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=152451
in Neobiota > 85 (2023) . - 23-42Monteiro, Miguel, Capinha, César, Ferreira, Maria Teresa, Nuñez, Martin A., Reino, Luis 2023 Negative and positive impacts of alien macrofungi: a global scale database. Neobiota, 85: 23-42.Documents numériques
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Article (2023)Adobe Acrobat PDFSummary for policymakers of the thematic assessment report on invasive alien species and their control of the intergovernmental science-policy platform on biodiversity and ecosystem services / Helen E. Roy (2023)
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