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Auteur Alexandra Maria Klein |
Documents disponibles écrits par cet auteur (3)
Affiner la rechercheEvaluating the effectiveness of retention forestry to enhance biodiversity in production forests of Central Europe using an interdisciplinary, multi-scale approach / Ilse Storch
Titre : Evaluating the effectiveness of retention forestry to enhance biodiversity in production forests of Central Europe using an interdisciplinary, multi-scale approach Type de document : Tiré à part de revue Auteurs : Ilse Storch ; Johannes Penner ; Thomas Asbeck ; Marco Basile ; Jürgen Bauhus ; Veronika Braunisch ; Carsten F. Dormann ; Julian Frey ; Stefanie Gärtner ; Marc Hanewinkel ; Barbara Koch ; Alexandra Maria Klein ; Thomas Kuss ; Michael Pregernig ; Patrick Pyttel ; Albert Reif ; Michael Scherer-Lorenzen ; Gernot Segelbacher ; Ulrich Schraml ; Michael Staab ; Georg Winkel ; Rasoul Yousefpour Importance : 21 p. Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Biodiversité
[CBNPMP-Thématique] Forêts (habitat)Résumé : Retention forestry, which retains a portion of the original stand at the time of harvesting to maintain continuity of structural and compositional diversity, has been originally developed to mitigate the impacts of clear-cutting. Retention of habitat trees and deadwood has since become common practice also in continuous-cover forests of Central Europe. While the use of retention in these forests is plausible, the evidence base for its application is lacking, trade-offs have not been quantified, it is not clear what support it receives from forest owners and other stakeholders and how it is best integrated into forest management practices. The Research Training Group ConFoBi (Conservation of Forest Biodiversity in Multiple-use Landscapes of Central Europe) focusses on the effectiveness of retention forestry, combining ecological studies on forest biodiversity with social and economic studies of biodiversity conservation across multiple spatial scales. The aim of ConFoBi is to assess whether and how structural retention measures are appropriate for the conservation of forest biodiversity in uneven-aged and selectively harvested continuous-cover forests of temperate Europe. The study design is based on a pool of 135 plots (1 ha) distributed along gradients of forest connectivity and structure. The main objectives are (a) to investigate the effects of structural elements and landscape context on multiple taxa, including different trophic and functional groups, to evaluate the effectiveness of retention practices for biodiversity conservation; (b) to analyze how forest biodiversity
conservation is perceived and practiced, and what costs and benefits it creates; and (c) to identify how biodiversity conservation can be effectively integrated in multifunctional
forest management. ConFoBi will quantify retention levels required across the landscape, as well as the socio-economic prerequisites for their implementation by forest owners and managers. ConFoBi's research results will provide an evidence base for integrating biodiversity conservation into forest management in temperate forests.Lien pérenne : DOI : 10.1002/ece3.6003 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=145101 Storch, Ilse, Penner, Johannes, Asbeck, Thomas, Basile, Marco, Bauhus, Jürgen, Braunisch, Veronika, Dormann, Carsten F., Frey, Julian, Gärtner, Stefanie, Hanewinkel, Marc, Koch, Barbara, Klein, Alexandra Maria, Kuss, Thomas, Pregernig, Michael, Pyttel, Patrick, Reif, Albert, Scherer-Lorenzen, Michael, Segelbacher, Gernot, Schraml, Ulrich, Staab, Michael, Winkel, Georg, Yousefpour, Rasoul [sans date] Evaluating the effectiveness of retention forestry to enhance biodiversity in production forests of Central Europe using an interdisciplinary, multi-scale approach. Ecology and evolution, 10(12) : 21 p..Documents numériques
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Titre : Importance of pollinators in changing landscapes for world crops Type de document : Tiré à part de revue Auteurs : Alexandra Maria Klein ; Bernard Vaissière ; James H. Cane ; Ingolf Steffan-Dewenter ; Saul A. Cunningham ; Claire Kremen ; Teja Tscharntke (1952-) Année de publication : 2007 Importance : 303-313 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Insectes Résumé : The extent of our reliance on animal pollination for world crop production for human food has not previously been evaluated and the previous estimates for countries or continents have seldom used primary data. In this review, we expand the previous estimates using novel primary data from 200 countries and found that fruit, vegetable or seed production from 87 of the leading global food crops is dependent upon animal pollination, while 28 crops do not rely upon animal pollination. However, global production volumes give a contrasting perspective, since 60% of global production comes from crops that do not depend on animal pollination, 35% from crops that depend on pollinators, and 5% are unevaluated. Using all crops traded on the world market and setting aside crops that are solely passively self-pollinated, wind-pollinated or parthenocarpic, we then evaluated the level of dependence on animal-mediated pollination for crops that are directly consumed by humans. We found that pollinators are essential for 13 crops, production is highly pollinator dependent for 30, moderately for 27, slightly for 21, unimportant for 7, and is of unknown significance for the remaining 9. We further evaluated whether local and landscape-wide management for natural pollination services could help to sustain crop diversity and production. Case studies for nine crops on four continents revealed that agricultural intensification jeopardizes wild bee communities and their stabilizing effect on pollination services at the landscape scale. Lien pérenne : DOI : 10.1098/rspb.2006.3721 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=134151 Klein, Alexandra Maria, Vaissière, Bernard, Cane, James H., Steffan-Dewenter, Ingolf, Cunningham, Saul A., Kremen, Claire, Tscharntke, Teja (1952-) 2007 Importance of pollinators in changing landscapes for world crops. Proceedings of the Royal Society. Biological Sciences, 274 : 303-313.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 21778 JC Tiré à part Bureaux Conservation Consultable Documents numériques
Article (2007)URLImportance of pollinators in changing landscapes for world crops / Alexandra Maria Klein in Proceedings of the Royal Society. Biological Sciences, 274 (2007)
Titre : Importance of pollinators in changing landscapes for world crops Type de document : Imprimé Auteurs : Alexandra Maria Klein ; Bernard Vaissière ; James H. Cane ; Ingolf Steffan-Dewenter ; Saul A. Cunningham ; Claire Kremen ; Teja Tscharntke (1952-) Année de publication : 2007 Article en page(s) : 303-313 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Insectes Résumé : The extent of our reliance on animal pollination for world crop production for human food has not previously been evaluated and the previous estimates for countries or continents have seldom used primary data. In this review, we expand the previous estimates using novel primary data from 200 countries and found that fruit, vegetable or seed production from 87 of the leading global food crops is dependent upon animal pollination, while 28 crops do not rely upon animal pollination. However, global production volumes give a contrasting perspective, since 60% of global production comes from crops that do not depend on animal pollination, 35% from crops that depend on pollinators, and 5% are unevaluated. Using all crops traded on the world market and setting aside crops that are solely passively self-pollinated, wind-pollinated or parthenocarpic, we then evaluated the level of dependence on animal-mediated pollination for crops that are directly consumed by humans. We found that pollinators are essential for 13 crops, production is highly pollinator dependent for 30, moderately for 27, slightly for 21, unimportant for 7, and is of unknown significance for the remaining 9. We further evaluated whether local and landscape-wide management for natural pollination services could help to sustain crop diversity and production. Case studies for nine crops on four continents revealed that agricultural intensification jeopardizes wild bee communities and their stabilizing effect on pollination services at the landscape scale. Lien pérenne : DOI : 10.1098/rspb.2006.3721 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148921
in Proceedings of the Royal Society. Biological Sciences > 274 (2007) . - 303-313Klein, Alexandra Maria, Vaissière, Bernard, Cane, James H., Steffan-Dewenter, Ingolf, Cunningham, Saul A., Kremen, Claire, Tscharntke, Teja (1952-) 2007 Importance of pollinators in changing landscapes for world crops. Proceedings of the Royal Society. Biological Sciences, 274: 303-313.Documents numériques
Article (2007)URL
