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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.<\/jats:p>","DOI":"10.1098\/rspb.2006.3721","type":"journal-article","created":{"date-parts":[[2006,10,30]],"date-time":"2006-10-30T12:48:59Z","timestamp":1162212539000},"page":"303-313","source":"Crossref","is-referenced-by-count":5107,"title":["Importance of pollinators in changing landscapes for world crops"],"prefix":"10.1098","volume":"274","author":[{"given":"Alexandra-Maria","family":"Klein","sequence":"first","affiliation":[{"name":"Agroecology, University of G\u00f6ttingenWaldweg 26, 37073 G\u00f6ttingen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bernard E","family":"Vaissi\u00e8re","sequence":"additional","affiliation":[{"name":"Institut National de la Recherche Agronomique, Laboratoire de Pollinisation Entomophile, UMR 406 INRA-UAPV Ecologie des Invert\u00e9br\u00e9s84914 Avignon Cedex 9, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"James H","family":"Cane","sequence":"additional","affiliation":[{"name":"USDA-ARS Bee Biology and Systematics Laboratory, Utah State UniversityLogan, UT 84322, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ingolf","family":"Steffan-Dewenter","sequence":"additional","affiliation":[{"name":"Agroecology, University of G\u00f6ttingenWaldweg 26, 37073 G\u00f6ttingen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saul A","family":"Cunningham","sequence":"additional","affiliation":[{"name":"CSIRO EntomologyBox 1700 Canberra, Australian Capital Territory 2601, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Claire","family":"Kremen","sequence":"additional","affiliation":[{"name":"Department of Environmental Science, Policy and Management, University of California137 Mulford Hall no. 3114, Berkeley, CA 94720, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teja","family":"Tscharntke","sequence":"additional","affiliation":[{"name":"Agroecology, University of G\u00f6ttingenWaldweg 26, 37073 G\u00f6ttingen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"175","published-online":{"date-parts":[[2006,10,27]]},"reference":[{"key":"e_1_3_2_2_1","unstructured":"Albrecht M. 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