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Increasing crop heterogeneity enhances multitrophic diversity across agricultural regions / Clélia Sirami in Proceedings of the National Academy of Sciences of the United States of America, 116 (33) (July 2019) 

Public Citation [article]  inProceedings of the National Academy of Sciences of the United States of America > 116 (33) (July 2019) . - 16442-16447 Titre : Increasing crop heterogeneity enhances multitrophic diversity across agricultural regions Type de document : Imprimé Auteurs : Clélia Sirami (1978-) ; Nicolas Gross ; Aliette Bosem Baillod ; Colette Bertrand ; Romain Carrié ; Annika Hass ; Laura Henckel ; Paul Miguet ; Carole Vuillot ; Audrey Alignier ; Jude Girard ; Péter Batáry ; Yann Clough ; Cyrille Violle ; David Giralt ; Gerard Bota ; Isabelle Badenhausser ; Gaëtan Lefebvre ; Bertrand Gauffre ; Aude Vialatte ; François Calatayud ; Assu Gil-Tena ; Lutz Tischendorf ; Scott Mitchell ; Kathryn Lindsay ; Romain Georges ; Samuel Hilaire ; Jordi Recasens i Guinjuan (1957-) ; Xavier Oriol Solé-Senan ; Irene Robleño ; Jordi Bosch ; Jose Antonio Barrientos ; Antonio Ricarte ; Maria Ángeles Marcos-Garcia ; Jesús Miñano ; Raphaël Mathevet ; Annick Gibon ; Jacques Baudry (1952-) ; Gérard Balent (1949-) ; Brigitte Poulin ; Françoise Burel ; Teja Tscharntke (1952-) ; Vincent Bretagnolle ; Gavin Siriwardena ; Annie Ouin ; Lluis Brotons ; Jean-Louis Martin ; Lenore Fahrig Année de publication : 2019 Article en page(s) : 16442-16447 Langues : Anglais (eng) Résumé : Agricultural landscape homogenization has detrimental effects on biodiversity and key ecosystem services. Increasing agricultural landscape heterogeneity by increasing seminatural cover can help to mitigate biodiversity loss. However, the amount of seminatural cover is generally low and difficult to increase in many intensively managed agricultural landscapes. We hypothesized that increasing the heterogeneity of the crop mosaic itself (hereafter “crop heterogeneity”) can also have positive effects on biodiversity. In 8 contrasting regions of Europe and North America, we selected 435 landscapes along independent gradients of crop diversity and mean field size. Within each landscape, we selected 3 sampling sites in 1, 2, or 3 crop types. We sampled 7 taxa (plants, bees, butterflies, hoverflies, carabids, spiders, and birds) and calculated a synthetic index of multitrophic diversity at the landscape level. Increasing crop heterogeneity was more beneficial for multitrophic diversity than increasing seminatural cover. For instance, the effect of decreasing mean field size from 5 to 2.8 ha was as strong as the effect of increasing seminatural cover from 0.5 to 11%. Decreasing mean field size benefited multitrophic diversity even in the absence of seminatural vegetation between fields. Increasing the number of crop types sampled had a positive effect on landscape-level multitrophic diversity. However, the effect of increasing crop diversity in the landscape surrounding fields sampled depended on the amount of seminatural cover. Our study provides large-scale, multitrophic, cross-regional evidence that increasing crop heterogeneity can be an effective way to increase biodiversity in agricultural landscapes without taking land out of agricultural production. Lien pérenne : DOI : 10.1073/pnas.1906419116 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148939 Sirami, Clélia (1978-), Gross, Nicolas, Bosem Baillod, Aliette, Bertrand, Colette, Carrié, Romain, Hass, Annika, Henckel, Laura, Miguet, Paul, Vuillot, Carole, Alignier, Audrey, Girard, Jude, Batáry, Péter, Clough, Yann, Violle, Cyrille, Giralt, David, Bota, Gerard, Badenhausser, Isabelle, Lefebvre, Gaëtan, Gauffre, Bertrand, Vialatte, Aude, Calatayud, François, Gil-Tena, Assu, Tischendorf, Lutz, Mitchell, Scott, Lindsay, Kathryn, Georges, Romain, Hilaire, Samuel, Recasens i Guinjuan, Jordi (1957-), Solé-Senan, Xavier Oriol, Robleño, Irene, Bosch, Jordi, Barrientos, Jose Antonio, Ricarte, Antonio, Marcos-Garcia, Maria Ángeles, Miñano, Jesús, Mathevet, Raphaël, Gibon, Annick, Baudry, Jacques (1952-), Balent, Gérard (1949-), Poulin, Brigitte, Burel, Françoise, Tscharntke, Teja (1952-), Bretagnolle, Vincent, Siriwardena, Gavin, Ouin, Annie, Brotons, Lluis, Martin, Jean-Louis, Fahrig, Lenore 2019 Increasing crop heterogeneity enhances multitrophic diversity across agricultural regions. Proceedings of the National Academy of Sciences of the United States of America, 116(33): 16442-16447.

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Consultable Article (2019) URL

Major field margin vegetation types in France and their relationships with climate, agricultural landscapes and management intensity / Guillaume Fried in Botany letters, 171 (2) (2024)

Public Citation [article]  inBotany letters > 171 (2) (2024) . - 235-252 Titre : Major field margin vegetation types in France and their relationships with climate, agricultural landscapes and management intensity Type de document : Imprimé Auteurs : Guillaume Fried ; Isis Poinas ; Laura Henckel ; Audrey Alignier Année de publication : 2024 Article en page(s) : 235-252 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Conservation et gestion des espèces [CBNPMP-Thématique] Incidence des activités agricoles [CBNPMP-Thématique] Messicole [CBNPMP-Thématique] Relations climat-végétation [CBNPMP-Géographique] France Résumé : Arable field margins are an important semi-natural habitat providing multiple functions in agroecosystems. Despite three decades of research, analyses of species assemblage and functional traits are lacking. Leveraging a national monitoring network in metropolitan France, we aim to provide a comprehensive taxonomic and functional synthesis of field margin flora, outline main field margin types and explore their associations with management practices, climate, and agricultural landscapes. We analysed data from 532 field margins surveyed between 2013 and 2017, using both uni- and multivariate analyses. Field margins exhibited great diversity with 711 distinct taxa (12% of all flora in mainland France) at the national scale and an average of 16 species per 10 m2 locally. While field margins contained few species of conservation value, they offered a refuge for many declining species as well as rare arable weed species. We identified seven main field margin types, each linked to distinct conditions of climate, soil, landscape and agricultural practices. Mediterranean field margins notably differed from all others. In the main cluster, vineyard margins also stood out as distinct from annual crop margins. Additionally, field margins in landscapes with a high proportion of grassland differed from those within intensively cultivated field crop plains in conventional agriculture. Overall, our study highlights the high botanical diversity of field margins and their interest for plant conservation in agricultural landscapes. Promoting the installation and/or maintenance of field margins through agri-environmental schemes should thus favour biodiversity conservation and associated ecosystem provision. Lien pérenne : DOI : 10.1080/23818107.2023.2269243 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=151851 Fried, Guillaume, Poinas, Isis, Henckel, Laura, Alignier, Audrey 2024 Major field margin vegetation types in France and their relationships with climate, agricultural landscapes and management intensity. Botany letters, 171(2): 235-252.

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
R22508	P-1824	Revue	Centre de documentation	Revues	Consultable

Organic fields sustain weed metacommunity dynamics in farmland landscapes / Laura Henckel in Proceedings of the Royal Society. Biological Sciences, 282 (2015) 

Public Citation [article]  inProceedings of the Royal Society. Biological Sciences > 282 (2015) . - 1-8 Titre : Organic fields sustain weed metacommunity dynamics in farmland landscapes Type de document : Électronique Auteurs : Laura Henckel, Auteur ; Luca Börger, Auteur ; Helmut Meiss, Auteur ; Sabrina Gaba (1978-), Auteur ; Vincent Bretagnolle, Auteur Année de publication : 2015 Article en page(s) : 1-8 Langues : Anglais (eng) Résumé : Agro-ecosystems constitute essential habitat for many organisms. Agricultural intensification, however, has caused a strong decline of farmland biodiversity. Organic farming (OF) is often presented as amore biodiversity-friendly practice, but the generality of the beneficial effects of OF is debated as the effects appear often species- and context-dependent, and current research has highlighted theneedtoquantify therelativeeffectsof local- and landscape-scalemanagement on farmland biodiversity. Yet very few studies have investigated the landscapelevel effects of OF; that is to say, how the biodiversity of a field is affected by the presence or density of organically farmed fields in the surrounding landscape. We addressed this issue using the metacommunity framework, with weed species richness in winter wheat within an intensively farmed landscape in France asmodel system.Controlling for the effects of local and landscape structure, we showed that OF leads to higher local weed diversity and that the presence of OF in the landscape is associated with higher localweed biodiversity also for conventionally farmed fields, and may reach a similar biodiversity level to organic fields in field margins. Based on these results,we derive indications for improving the sustainable management of farming systems. Lien pérenne : DOI : 10.1098/rspb.2015.0002 / HAL : hal-01199764 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=144387 Henckel, Laura, Börger, Luca, Meiss, Helmut, Gaba, Sabrina (1978-), Bretagnolle, Vincent 2015 Organic fields sustain weed metacommunity dynamics in farmland landscapes. Proceedings of the Royal Society. Biological Sciences, 282: 1-8.

Documents numériques

Consultable Article (2015) URL