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Color-advertising strategies of invasive plants through the bee eye / Martin Dessart in Frontiers in plant sience, 15 (2024) 

Public Citation [article]  inFrontiers in plant sience > 15 (2024) . - 1393204 Titre : Color-advertising strategies of invasive plants through the bee eye Type de document : Numérique Auteurs : Martin Dessart ; João Marcelo Robazzi Bignelli Valente Aguiar ; Eric Tabacchi ; Sylvie Guillerme Année de publication : 2024 Article en page(s) : 1393204 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Pollinisateur [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : Invasive plants represent a significant global challenge as they compete with native plants for limited resources such as space, nutrients and pollinators. Here, we focused on four invasive species that are widely spread in the French Pyrenees, Buddleja davidii, Reynoutria japonica, Spiraea japonica and Impatiens glandulifera, and analyzed their visual advertisement signals with respect to those displayed by their surrounding native species using a perceptual approach based on the neural mechanisms of bee vision given that bees are regular pollinators of these plants. We collected 543 spectral reflections from the 4 invasive species, and 66 native species and estimated achromatic and chromatic similarities to the bee eye. R. japonica, S. japonica and B. davidii were inconspicuous against the foliage background and could be hardly discriminated in terms of color from their surrounding native plants. These characteristics promote generalization, potentially attracting pollinators foraging on similar native species. Two morphs of I. glandulifera were both highly salient in chromatic and achromatic terms and different from their surrounding native species. This distinctive identity facilitates detection and learning in association with rich nectar. While visual signals are not the only sensory cue accounting for invasive-plant success, our study reveals new elements for understanding biological invasion processes from the perspective of pollinator perceptual processes. Identifiant : DOI : 10.3389/fpls.2024.1393204 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=155619 Dessart, Martin, Robazzi Bignelli Valente Aguiar, João Marcelo, Tabacchi, Eric, Guillerme, Sylvie 2024 Color-advertising strategies of invasive plants through the bee eye. Frontiers in plant sience, 15: 1393204.

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Evolution of traditional agroforestry landscapes and development of invasive species : lessons from the Pyrenees (France) / Sylvie Guillerme in Sustainability Science, 15 (6) (2020) 

Public Citation [article]  inSustainability Science > 15 (6) (2020) . - 1285-1299 Titre : Evolution of traditional agroforestry landscapes and development of invasive species : lessons from the Pyrenees (France) Type de document : Imprimé Auteurs : Sylvie Guillerme ; Hugues Barcet ; Nicolas de Munnik ; Eric Maire ; Claire Marais-Sicre Année de publication : 2020 Article en page(s) : 1285-1299 Catégories : [CBNPMP-Géographique] Pyrénées [CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes Résumé : The term agroforestry covers practices that are promoted to maintain or even enhance biodiversity. However, the relationship between agroforestry and invasive species is rarely addressed, even though the spread of such species is an important issue, not only ecologically but also economically and socially. Over the past few decades, humans have greatly accelerated the process of biological invasions, to such an extent that they are now recognized as the second cause of rapid decline in biodiversity. In France (as in other parts in Europe) abandonment of agricultural land in remote areas is a major problem having socio-economic, landscape and environmental implications. The objective of the research presented here was to find a method for studying the relationship between traditional agroforestry systems and invasive species, despite a lack of available data. We investigated the evolution of a traditional agroforestry system in the Pyrenean foothills, where invasive species are abundant, by implementing two complementary methods: i/ interviews highlighting the local stakeholders’ perception of landscape evolution, invasive species and the challenges they represent for the local traditional agroforestry landscapes, and ii/ detailed mapping of an area occupied by invasive plants, by means of very high resolution spatial technologies using UAV’s and aerial photography. The results show that invasive species have spread in relation with the abandonment of agricultural land, which has also led to “landscape closure” by the encroachment of natural afforestation. They also underline the difficulty of assessing the spread of invasive species. This situation is of major importance in terms of land-use planning, as the various stakeholders have different perceptions of the problem, and it raises questions about the sustainability of practices and territories. Identifiant : DOI : 10.1007/s11625-020-00847-1 / HAL : hal-03070831v1 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=155819 Guillerme, Sylvie, Barcet, Hugues, Munnik, Nicolas de, Maire, Eric, Marais-Sicre, Claire 2020 Evolution of traditional agroforestry landscapes and development of invasive species : lessons from the Pyrenees (France). Sustainability Science, 15(6): 1285-1299.

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Consultable Article (2020) URL