Détail de l'auteur
Auteur Ingolf Steffan-Dewenter |
Documents disponibles écrits par cet auteur (3)
Affiner la rechercheFloral trait expression and plant fitness in reponse to below- and aboveground plant-animal interactions / Katja Poveda in Perspectives in Plant Ecology, Evolution and Systematics, 7 (2) (2005)
Titre : Floral trait expression and plant fitness in reponse to below- and aboveground plant-animal interactions Type de document : Imprimé Auteurs : Katja Poveda ; Ingolf Steffan-Dewenter ; Stefan Scheu ; Teja Tscharntke (1952-) Année de publication : 2005 Article en page(s) : 77-83 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Autoécologie (relations/interactions individus-espèces)
[CBNPMP-Thématique] Organisation trophique
[CBNPMP-Thématique] Interactions interspécifiques
[CBNPMP-Thématique] Stratégie de production de semences (fécondité)Mots-clés : Sinapis arvensis L. Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=139249
in Perspectives in Plant Ecology, Evolution and Systematics > 7 (2) (2005) . - 77-83Poveda, Katja, Steffan-Dewenter, Ingolf, Scheu, Stefan, Tscharntke, Teja (1952-) 2005 Floral trait expression and plant fitness in reponse to below- and aboveground plant-animal interactions. Perspectives in Plant Ecology, Evolution and Systematics, 7(2): 77-83.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité R3957 R1 Revue Centre de documentation Revues Consultable
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
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Article (2007)URL
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
