Auteur Laure Gallien
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Documents disponibles écrits par cet auteur (4)
Affiner la rechercheInvasive species distribution models : how violating the equilibrium assumption can create new insights / Laure Gallien (2012)
Titre : Invasive species distribution models : how violating the equilibrium assumption can create new insights Type de document : Tiré à part de revue Auteurs : Laure Gallien ; Rolland Douzet ; Steve Pratte ; Niklaus E. Zimmermann ; Wilfried Thuiller (1975-) Année de publication : 2012 Importance : 1126-1136 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : Aim : Two core assumptions of species distribution models (SDMs) do not holdwhen modelling invasive species. Invasives are not in equilibrium with their envi-ronment and niche quantification and transferability in space and time are limited.Here, we test whether combining global- and regional-scale data in a novel frame-work can overcome these limitations. Beyond simply improving regional nichemodelling of non-native species, the framework also makes use of the violation ofregional equilibrium assumptions, and aims at estimating the stage of invasion,range filling and risk of spread in the near future for 27 invasive species in theFrench Alps.
Innovation: For each invader we built three sets of SDMs using a committeeaveraging method: one global model and two regional models (a conventionalmodel and one using the global model output to weight pseudo-absences). Modelperformances were compared using the area under the receiver operating charac-teristic curve, the true skill statistic, sensitivity and specificity scores. Then, weextracted the predictions for observed presences and compared them to global andregional models. This comparison made it possible to identify whether invasivespecies were observed within or outside of their regional and global niches.
Main conclusions: This study provides a novel methodological framework forimproving the regional modelling of invasive species, where the use of a globalmodel output to weight pseudo-absences in a regional model significantlyimproved the predictive performance of regional SDMs. Additionally, the compari-son of the global and regional model outputs revealed distinct patterns of nicheestimates and range filling among the species. These differences allowed us to drawconclusions about the stage of invasion and the risk of spread in the near future,which both correspond to experts’ expectations. This framework can be easilyapplied to a large number of species and is therefore useful for control of biologicalinvasions and eradication planning.Identifiant : DOI : 10.1111/j.1466-8238.2012.00768.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=135330 Gallien, L., Douzet, R., Pratte, S., Zimmermann, N.E., Thuiller, W., 2012 . Invasive species distribution models : how violating the equilibrium assumption can create new insights. Global Ecology and Biogeography Letters, 21 : 1126-1136.Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 25414B PEE Tiré à part Bureaux Plantes exotiques envahissantes Consultable Documents numériques
article (2012)URLIs there any evidence for rapid, genetically-based, climatic niche expansion in the invasive common ragweed ? / Laure Gallien in PloS ONE, 11 (4) (2015)
Titre : Is there any evidence for rapid, genetically-based, climatic niche expansion in the invasive common ragweed ? Type de document : Numérique Auteurs : Laure Gallien ; Wilfried Thuiller (1975-) ; Noémie Fort ; Martí Boleda ; Florian J. Alberto ; Delphine Rioux ; Juliette Lainé ; Sébastien Lavergne (1976-) Année de publication : 2015 Article en page(s) : 17 p. Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : Climatic niche shifts have been documented in a number of invasive species by comparing the native and adventive climatic ranges in which they occur. However, these shifts likely represent changes in the realized climatic niches of invasive species, and may not necessarily be driven by genetic changes in climatic affinities. Until now the role of rapid niche evolution in the spread of invasive species remains a challenging issue with conflicting results. Here, we document a likely genetically-based climatic niche expansion of an annual plant invader, the common ragweed (Ambrosia artemisiifolia L.), a highly allergenic invasive species causing substantial public health issues. To do so, we looked for recent evolutionary change at the upward migration front of its adventive range in the French Alps. Based on species climatic niche models estimated at both global and regional scales we stratified our sampling design to adequately capture the species niche, and localized populations suspected of niche expansion. Using a combination of species niche modeling, landscape genetics models and common garden measurements, we then related the species genetic structure and its phenotypic architecture across the climatic niche. Our results strongly suggest that the common ragweed is rapidly adapting to local climatic conditions at its invasion front and that it currently expands its niche toward colder and formerly unsuitable climates in the French Alps (i.e. in sites where niche models would not predict its occurrence). Such results, showing that species climatic niches can evolve on very short time scales, have important implications for predictive models of biological invasions that do not account for evolutionary processes. Identifiant : DOI : 10.1371/journal.pone.0152867 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142740
in PloS ONE > 11 (4) (2015) . - 17 p.Gallien, L., Thuiller, W., Fort, N., Boleda, M., Alberto, F.J., Rioux, D., Lainé, J., Lavergne, S., 2015 . Is there any evidence for rapid, genetically-based, climatic niche expansion in the invasive common ragweed ? PloS ONE, 11(4): 17 p..Documents numériques
Article (2015)URL
Titre : Predicting potential distributions of invasive species : where to go from here? Type de document : Numérique Auteurs : Laure Gallien ; Tamara Münkemüller ; Cécile H Albert ; Isabelle Boulangeat ; Wilfried Thuiller (1975-) Année de publication : 2010 Article en page(s) : 331–342 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Identifiant : HAL : hal-02521375 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=141859
in Diversity and Distributions > 16 (2010) . - 331–342Gallien, L., Münkemüller, T., Albert, C.H., Boulangeat, I., Thuiller, W., 2010 . Predicting potential distributions of invasive species : where to go from here? Diversity and Distributions, 16: 331–342.Documents numériques
Article (2010)URL
Titre : Risks posed by invasive species to the provision of ecosystem services in Europe Type de document : Imprimé Auteurs : Belinda Gallardo ; Sven Bacher ; Anna Marcia Barbosa ; Laure Gallien ; Pablo González-Moreno ; Víctor Martínez-Bolea ; Cascade Sorte ; Giovanni Vimercati ; Montserrat Vilà Année de publication : 2024 Article en page(s) : 2631 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : Invasive species significantly impact biodiversity and ecosystem services, yet understanding these effects at large spatial scales remains a challenge. Our study addresses this gap by assessing the current and potential future risks posed by 94 invasive species to seven key ecosystem services in Europe. We demonstrate widespread potential impacts, particularly on outdoor recreation, habitat maintenance, crop provisioning, and soil and nitrogen retention. Exposure to invasive species was higher in areas with lower provision of ecosystem services, particularly for regulating and cultural services. Exposure was also high in areas where ecosystem contributions to crop provision and nitrogen retention were at their highest. Notably, regions vital for ecosystem services currently have low invasion suitability, but face an average 77% increase in potential invasion area. Here we show that, while high-value ecosystem service areas at the highest risk represent a small fraction of Europe (0-13%), they are disproportionally important for service conservation. Our study underscores the importance of monitoring and protecting these hotspots to align management strategies with international biodiversity targets, considering both invasion vulnerability and ecosystem service sustainability. Identifiant : DOI : 10.1038/s41467-024-46818-3 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=153666
in Nature communications > 15 (2024) . - 2631Gallardo, B., Bacher, S., Barbosa, A.M., Gallien, L., González-Moreno, P., Martínez-Bolea, V., Sorte, C., Vimercati, G., Vilà, M., 2024 . Risks posed by invasive species to the provision of ecosystem services in Europe. Nature communications, 15: 2631.Documents numériques
Article (2024)Adobe Acrobat PDF
