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Flowering fields, organic farming and edge habitats promote diversity of plants and arthropods on arable land / Christoph Gayer in Journal of applied ecology, 58 (6) (June 2021) 

Public Citation [article]  inJournal of applied ecology > 58 (6) (June 2021) . - 1155-1166 Titre : Flowering fields, organic farming and edge habitats promote diversity of plants and arthropods on arable land Type de document : Imprimé Auteurs : Christoph Gayer ; Jochen Berger ; Martin Dieterich ; Róbert Gallé ; Konrad Reidl ; Rosa Witty ; Ben A. Woodcock ; Péter Batáry Année de publication : 2021 Article en page(s) : 1155-1166 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Messicole Résumé : Increased farming intensity led to massive declines across multiple farmland taxa. In Europe, measures introduced to counteract these losses include those considered agronomically productive, such as organic farming, as well as those that support no direct production of crops, such as non-crop flowering fields in conventional farming systems. We studied biodiversity effects of non-productive flowering fields managed under conventional farming compared to both an organically managed cereal mono-crop (organic winter spelt fields) and a flowering mixed-crop (organic lentil mixed-crop fields) as well as conventionally managed winter wheat fields, which served as control crop. These four crop-use types were studied on six sites over 3 years (17 sites in total) to assess their impact on the activity density (cover for plants), species richness and community composition of wild plants, carabids, spiders, butterflies and wild bees. Species richness of wild plants was highest under organic farming and at field edges when compared to the interior. In the case of carabids and spiders, species richness was highest at the field edges, but there was no difference between the four crop-use types. In contrast, activity density and species richness of butterflies and wild bees responded only to flowering crop-use types, showing no edge effects. Arable land cover in 500 m buffer area also affected community composition of all taxa, with the exception of spiders, but had only minor effects on activity densities and species richness. Synthesis and applications. Our findings underline that there is no single best measure to promote biodiversity on arable land. Instead a mosaic of non-productive and productive measures such as conventional flowering fields, organic crops and field edge habitats might be more appropriate to support the regional species pool in arable-dominated landscapes. To support a range of complementary biodiversity-promoting farming practices, agricultural policy should foster the coordination and collaboration between multiple farmers within the same region by covering additional costs for coordination and prioritizing collaborative schemes. Lien pérenne : DOI : 10.1111/1365-2664.13851 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=149186 Gayer, Christoph, Berger, Jochen, Dieterich, Martin, Gallé, Róbert, Reidl, Konrad, Witty, Rosa, Woodcock, Ben A., Batáry, Péter 2021 Flowering fields, organic farming and edge habitats promote diversity of plants and arthropods on arable land. Journal of applied ecology, 58(6): 1155-1166.

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Consultable Article (2021) URL

Reintroduction strategies for rare arable weeds in agricultural practice and their influence on yield / Matthias Schumacher in Weed Research, 64 (2024) 

Public Citation [article]  inWeed Research > 64 (2024) . - 384-394 Titre : Reintroduction strategies for rare arable weeds in agricultural practice and their influence on yield Type de document : Imprimé Auteurs : Matthias Schumacher ; Rosa Witty ; Roland Gerhards Année de publication : 2024 Article en page(s) : 384-394 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Conservation et gestion des espèces [CBNPMP-Thématique] Messicole Résumé : Agricultural intensification and changing landscape structure led to decreasing numbers of arable flora and fauna during the last decades. To counteract these declines, arable plant diversity needs to be restored. It is important to promote regional plant communities including endangered species to ensure adaption to agricultural landscapes. Therefore, this study examines the development of arable plant diversity, crop yield and the reintroduction success of rare arable plants (RAPs) under different practical farming strategies in cereals from 2019 to 2021 in southwestern Germany. Farming strategies varied regarding weed control intensity (none, mechanical, herbicide with and without efficiency gap), fertilisation (mineral and none) and row spacing (12.5 cm and 20 cm). Additionally, two different seed mixtures containing RAP and common species were used for reintroduction: one commercially available and another self-composed. Reintroduction success was quite high with more than 80% establishment rate. Species numbers doubled in all treatments over time, except the one with herbicide application, with on average 8–10 species emerging from the soil seed bank. Reintroduction of RAP increased arable plant species richness further up to 37 species. The site-adapted mixture showed in the end a site-typical weed community. Yield was significantly lower in treatments with reintroduction via sown mixtures and no weed control, losing on average 65% yield. The reintroduction of RAP was successful and accompanied by an increasing floral diversity, however, with a simultaneous yield loss. Financial incentives or subsidies are therefore still necessary to compensate yield loss for reintroduction and conservation efforts. Lien pérenne : DOI : 10.1111/wre.12659 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=153591 Schumacher, Matthias, Witty, Rosa, Gerhards, Roland 2024 Reintroduction strategies for rare arable weeds in agricultural practice and their influence on yield. Weed Research, 64: 384-394.

Documents numériques

Consultable article (2024) URL