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Auteur Claire Kremen |
Documents disponibles écrits par cet auteur (4)
Affiner la rechercheBee preference for native versus exotic plants in restored agricultural hedgerows / Lora Morandin in Restoration ecology, 21 (1) (January 2013)
Titre : Bee preference for native versus exotic plants in restored agricultural hedgerows Type de document : Imprimé Auteurs : Lora Morandin ; Claire Kremen Année de publication : 2013 Article en page(s) : 26-32 Catégories : [CBNPMP-Thématique] Restauration des écosystèmes
[LOTERRE-Biodiversité] PollinisateurRésumé : Habitat restoration to promote wild pollinator populations is becoming increasingly common in agricultural lands. Yet, little is known about how wild bees, globally the most important wild pollinators, use resources in restored habitats. We compared bee use of native and exotic plants in two types of restored native plant hedgerows: mature hedgerows (>10 years from establishment) designed for natural enemy enhancement and new hedgerows (≤2 years from establishment) designed to enhance bee populations. Bees were collected from flowers using timed aerial netting and flowering plant cover was estimated by species using cover classes. At mature hedgerow sites, wild bee abundance, richness, and diversity were greater on native plants than exotic plants. At new sites, where native plants were small and had limited floral display, abundance of bees was greater on native plants than exotic plants; but, controlling for floral cover, there was no difference in bee diversity and richness between the two plant types. At both mature and new hedgerows, wild bees preferred to forage from native plants than exotic plants. Honey bees, which were from managed colonies, also preferred native plants at mature hedgerow sites but exhibited no preference at new sites. Our study shows that wild bees, and managed bees in some cases, prefer to forage on native plants in hedgerows over co-occurring weedy, exotic plants. Semi-quantitative ranking identified which native plants were most preferred. Hedgerow restoration with native plants may help enhance wild bee abundance and diversity, and maintain honey bee health, in agricultural areas. Lien pérenne : DOI : 10.1111/j.1526-100X.2012.00876.x Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148402
in Restoration ecology > 21 (1) (January 2013) . - 26-32Morandin, Lora, Kremen, Claire 2013 Bee preference for native versus exotic plants in restored agricultural hedgerows. Restoration ecology, 21(1): 26-32.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité R19675 P-650 Revue Bureaux Restauration écologique 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
Titre : The effectiveness of flower strips and hedgerows on pest control, pollination services and crop yield: a quantitative synthesis Type de document : Électronique Auteurs : Matthias Albrecht ; David Kleijn ; Neal M. Williams ; Matthias Tschumi (1986-) ; Brett R. Blaauw ; Riccardo Bommarco ; Alistair J. Campbell ; Matteo Dainese ; Francis A. Drummond ; Martin H. Entling ; Dominik Ganser ; G. Arjen de Groot ; Dave Goulson ; Heather Grab ; Hannah Hamilton ; Félix Herzog ; Rufus Isaacs ; Katja Jacot (1971-) ; Philippe Jeanneret ; Mattias Jonsson ; Eva Knop ; Claire Kremen ; Douglas A. Landis ; Gregory M. Loeb ; Lorenzo Marini ; Megan McKerchar ; Lora Morandin ; Sonja C. Pfister ; Simon G. Potts ; Maj Rundölf ; Hillary Sardiñas ; Amber Sciligo ; Carsten Thies ; Teja Tscharntke (1952-) ; Eric Venturini ; Eve Veromann ; Ines M. G. Vollhardt ; Félix Wäckers ; Kimiora Ward ; Duncan B. Westbury ; Andrew Wilby ; Megan Woltz ; Steve Wratten ; Louis Sutter Année de publication : 2020 Article en page(s) : 1-11 Langues : Anglais (eng) Catégories : [CBNPMP-Thématique] Agroécologie
[CBNPMP-Thématique] Coadaptation, coévolution, symbiose (dissémination, pollinisation)Résumé : Floral plantings are promoted to foster ecological intensification of agriculture through provisioning of ecosystem services. However, a comprehensive assessment of the effectiveness of different floral plantings, their characteristics and consequences for crop yield is lacking. Here we quantified the impacts of flower strips and hedgerows on pest control (18 studies) and pollination services (17 studies) in adjacent crops in North America, Europe and New Zealand. Flower strips, but not hedgerows, enhanced pest control services in adjacent fields by 16% on average. However, effects on crop pollination and yield were more variable. Our synthesis identifies several important drivers of variability in effectiveness of plantings: pollination services declined exponentially with distance from plantings, and perennial and older flower strips with higher flowering plant diversity enhanced pollination more effectively. These findings provide promising pathways to optimise floral plantings to more effectively contribute to ecosystem service delivery and ecological intensification of agriculture in the future. Lien pérenne : DOI : 10.1111/ele.13576 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=143465
in Ecology Letters > 23 (10) (2020) . - 1-11Albrecht, Matthias, Kleijn, David, Williams, Neal M., Tschumi, Matthias (1986-), Blaauw, Brett R., Bommarco, Riccardo, Campbell, Alistair J., Dainese, Matteo, Drummond, Francis A., Entling, Martin H., Ganser, Dominik, Arjen de Groot, G., Goulson, Dave, Grab, Heather, Hamilton, Hannah, Herzog, Félix, Isaacs, Rufus, Jacot, Katja (1971-), Jeanneret, Philippe, Jonsson, Mattias, Knop, Eva, Kremen, Claire, Landis, Douglas A., Loeb, Gregory M., Marini, Lorenzo, McKerchar, Megan, Morandin, Lora, Pfister, Sonja C., Potts, Simon G., Rundölf, Maj, Sardiñas, Hillary, Sciligo, Amber, Thies, Carsten, Tscharntke, Teja (1952-), Venturini, Eric, Veromann, Eve, Vollhardt, Ines M. G., Wäckers, Félix, Ward, Kimiora, Westbury, Duncan B., Wilby, Andrew, Woltz, Megan, Wratten, Steve, Sutter, Louis 2020 The effectiveness of flower strips and hedgerows on pest control, pollination services and crop yield: a quantitative synthesis. Ecology Letters, 23(10): 1-11.Documents numériques
Article (2009)URL
