Catégories
Documents disponibles dans cette catégorie (242)
Affiner la recherche
Weed diversity is driven by complexinterplay between multi-scale dispersaland local filtering / Bérenger Bourgeois in Proceedings of the Royal Society. Biological Sciences, 287 (1930) (2020)
[article]
Titre : Weed diversity is driven by complexinterplay between multi-scale dispersaland local filtering Type de document : Imprimé Auteurs : Bérenger Bourgeois ; Sabrina Gaba (1978-) ; Christine Plumejeaud ; Vincent Bretagnolle Année de publication : 2020 Article en page(s) : 20201118 Langues : Anglais (eng) Catégories : [LOTERRE-Biodiversité] Communauté végétale
[CBNPMP-Thèmes] BiodiversitéRésumé : Arable weeds are key organisms for biodiversity maintenance and ecosystem service provision in agroecosystems. Disentangling the drivers of weed diversity is critical to counteract the global decline of farmland biodiversity. Even if distinct scale-dependent processes were alternatively proposed, no general framework unifying the multi-scale drivers of weed dynamics has yet emerged. Here, we investigate the joint effects of field- and landscape-scale processes on weed assemblages in 444 arable fields. First, field margins sheltered greater weed diversity than field core, evidencing their role as biodiversity refugia. Second, community similarity between field core and margin decreased with the distance to margin, highlighting a major role of local dispersal. Third, weed diversity at field margins increased with organic field cover in the landscape, pointing out massive regional dispersal. Fourth, while both local and landscape dispersal explained up to 41% of field core weed diversity, crop type strongly modulated their strength, depicting an intense filtering effect by agricultural management. This study sheds new light on the complex multi-scale interactions shaping weed diversity, field margins playing a key role by strengthening regional dispersal and sustaining local dispersal. Land-sharing strategies improving habitat heterogeneity both locally and regionally should largely promote agroecosystem multifunctionality and sustainability. Lien pérenne : DOI : 10.1098/rspb.2020.1118 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=149393
in Proceedings of the Royal Society. Biological Sciences > 287 (1930) (2020) . - 20201118Bourgeois, B., Gaba, S., Plumejeaud, C., Bretagnolle, V. 2020. Weed diversity is driven by complexinterplay between multi-scale dispersaland local filtering. Proceedings of the Royal Society. Biological Sciences, 287(1930): 20201118.Documents numériques
Consultable
Article (2020)URL
[article]
Titre : Why mountains matter for biodiversity Type de document : Imprimé Auteurs : Alison Perrigo ; Carina Hoorn ; Alexandre Antonelli Année de publication : 2020 Article en page(s) : 315-325 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Biodiversité Résumé : Mountains are arguably Earth's most striking features. They play a major role in determining global and regional climates, are the source of most rivers, act as cradles, barriers and bridges for species, and are crucial for the survival and sustainability of many human societies. The complexity of mountains is tightly associated with high biodiversity, but the processes underlying this association are poorly known. Solving this puzzle requires researchers to generate more primary data, and better integrate available geological and climatic data into biological models of diversity and evolution. In this perspective, we highlight emerging insights, which stress the importance of mountain building through time as a generator and reservoir of biodiversity. We also discuss recently proposed parallels between surface uplift, habitat formation and species diversification. We exemplify these links and discuss other factors, such as Quaternary climatic variations, which may have obscured some mountain-building evidence due to erosion and other processes. Biological evolution is complex and the build-up of mountains is certainly not the only explanation, but biological and geological processes are probably more intertwined than many of us realize. The overall conclusion is that geology sets the stage for speciation, where ecological interactions, adaptive and non-adaptive radiations and stochastic processes act together to increase biodiversity. Further integration of these fields may yield novel and robust insights. Lien pérenne : DOI : 10.1111/jbi.13731 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=152052
in Journal of biogeography > 47 (2020) . - 315-325Perrigo, A., Hoorn, C., Antonelli, A. 2020. Why mountains matter for biodiversity. Journal of biogeography, 47: 315-325.Documents numériques
Consultable
Article (2020)URL Du XIIe siècle au XXIe siècle, histoire de la biodiversité d'une petite forêt tarnaise, le bois de Gabor (Tarn, France). / Michel Bartoli in Carnets natures, 10 (2023)
[article]
Titre : Du XIIe siècle au XXIe siècle, histoire de la biodiversité d'une petite forêt tarnaise, le bois de Gabor (Tarn, France). Type de document : Imprimé Auteurs : Michel Bartoli (1946-) Année de publication : 2023 Article en page(s) : 53-59 Langues : Français (fre) Catégories : [CBNPMP-Thèmes] Biodiversité
[CBNPMP-Thèmes] Forêts (habitat)Résumé : La petite (30 ha) chênaie de Gabor a été royale et dispose d’un riche fonds d’archives qui permet de suivre l’évolution des peuplements. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=152281
in Carnets natures > 10 (2023) . - 53-59Bartoli, M. 2023. Du XIIe siècle au XXIe siècle, histoire de la biodiversité d'une petite forêt tarnaise, le bois de Gabor (Tarn, France). Carnets natures, 10: 53-59.Documents numériques
Consultable
Article (2023)URL