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Dramatic losses of specialist arable plants in Central Germany since the 1950s/60s – a cross-regional analysis / Stefan Meyer in Diversity and Distributions, 19 (9) (September 2013) 

Public Citation [article]  inDiversity and Distributions > 19 (9) (September 2013) . - 1175-1187 Titre : Dramatic losses of specialist arable plants in Central Germany since the 1950s/60s – a cross-regional analysis Type de document : Électronique Auteurs : Stefan Meyer ; Karsten Wesche ; Benjamin Krause ; Christoph Leuschner (1956-) Année de publication : 2013 Article en page(s) : 1175-1187 Langues : Français (fre) Catégories : [CBNPMP-Géographique] Allemagne [CBNPMP-Thématique] Messicole Résumé : To assess the consequences of agricultural intensification since the 1950s for Central Europe's plant communities of arable plants. Location : Central Germany. We employed a semipermanent plot design to analyse changes in 392 field interiors for 10 study regions, including sandy, limestone and loamy sites between the 1950s/60s and 2009. The analysis revealed a reduction in the regional species pool during the 50-year period of 23% (from 301 to 233 vascular species) and dramatic losses in plot-level diversity (from medians of 24 to 7). Median cover of spontaneously growing arable plants decreased from 30% to 3%. Losses were disproportionally larger on limestone sites while sandy sites maintained a larger fraction of the original diversity. Archaeophytes, neophytes and most Poaceae (including some aggressive weeds) showed similarly strong losses as indigenous plants. This contradicts the assumption that grasses and neophytes are generally profiting from agricultural intensification. Crop diversity decreased from 25 crop plants present in the 1950s/60s to only 16 in 2009, while crop cover generally increased. Winter cereals, oilseed rape and maize are dominant today, while all other crop types showed strong declines. Vegetation change over time depended on soil substrate with once markedly different arable communities now showing more homogenized community structure. Increasing Ellenberg indicator values for nitrogen and pH point to N fertilization as a major driver of change. New conservation measures such as the establishment of field flora reserves and agri-environment schemes with less intensive land use are thus urgently needed especially on limestone substrates to bring an end to the decline of this functionally distinct and increasingly threatened component of the Central European flora. Lien pérenne : DOI : 10.1111/ddi.12102 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148442 Meyer, Stefan, Wesche, Karsten, Krause, Benjamin, Leuschner, Christoph (1956-) 2013 Dramatic losses of specialist arable plants in Central Germany since the 1950s/60s – a cross-regional analysis. Diversity and Distributions, 19(9): 1175-1187.

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A new conservation strategy for arable plant vegetation in Germany – the project / Stefan Meyer in Plant Breeding and Seed Science, 61 (2010) 

Public Citation [article]  inPlant Breeding and Seed Science > 61 (2010) . - 25-34 Titre : A new conservation strategy for arable plant vegetation in Germany – the project Type de document : Imprimé Auteurs : Stefan Meyer ; Karsten Wesche ; Christoph Leuschner (1956-) ; Thomas van Elsen (1959-) ; Jürgen Metzner (1941-) Année de publication : 2010 Article en page(s) : 25-34 Catégories : [CBNPMP-Thématique] Messicole [CBNPMP-Thématique] Biodiversité [CBNPMP-Thématique] Conservation et gestion des espèces [CBNPMP-Géographique] Allemagne Résumé : t is prudent to conserve communities which are as species-rich as possible. This is the only means of ensuring that species diversity but also gene diversity is high enough to allow for the necessary adaptations to changed environmental conditions. Arable plant communities are a special case here because losses in the last 5 decades have been particularly severe. Numerous studies from Central Europe reported dramatic declines of the segetal flora.In most of the federal states of Germany, successful measures for protecting the segetal flora, such as the establishment of field flora reserves and field margin strip programmes have often unfortunately come to a halt due to changes in funding, lack of regional support or high levels of bureaucracy. The new project "100 fields for biodiversity", which has been funded by the Deutsche Bundesstiftung Umwelt (DBU) since 2007, aims to establish a network of protected areas for the preservation of endangered segetal species in Germany. Management aimed at preserving and fostering arable wild plants is to be guaranteed in the long term on at least 100 particularly suitable arable sites... Lien pérenne : DOI : 10.2478/v10129-010-0009-3 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148440 Meyer, Stefan, Wesche, Karsten, Leuschner, Christoph (1956-), Elsen, Thomas van (1959-), Metzner, Jürgen (1941-) 2010 A new conservation strategy for arable plant vegetation in Germany – the project. Plant Breeding and Seed Science, 61: 25-34.

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Consultable Article (2010) URL