Albrecht M, Duelli P, Müller C, Kleijn D, Schmid B (2007) The Swiss agri-environment scheme enhances pollinator diversity and plant reproductive success in nearby intensively managed farmland. Journal of Applied Ecology 44 (4): 813-822. https:// doi.org/10.1111/j.1365-2664.2007.01306.x
Arbetman M, Meeus I, Morales C, Aizen M, Smagghe G (2013) Alien parasite hitchhikes to Patagonia on invasive bumblebee. Biological Invasions 15 (3): 489-494. https:// doi.org/10.1007/s10530-012-0311-0
Benton T, Vickery J, Wilson J (2003) Farmland biodiversity: is habitat heterogeneity the key? Trends in Ecology & Evolution 18 (4): 182-188. https://doi.org/10.1016/S0169-5347(03)00011-9
Beyou W, Darses O, Puydarrieux P, Kervinio Y, Tallandier-Lespinasse S, Hubert S (2016) EFESE - Le service de pollinisation. Commissariat général au développement durable, 46 pp.
Biesmeijer JC, Roberts SPM, Reemer M, Ohlemüller R, Edwards M, Peeters T, Schaffers AP, Potts SG, Kleukers R, Thomas CD, Settele J, Kunin WE (2006) Parallel Declines in Pollinators and Insect-Pollinated Plants in Britain and the Netherlands. Science 313 (5785): 351-354. https://doi.org/10.1126/science.1127863
Blacquière T, Smagghe G, Gestel CM, Mommaerts V (2012) Neonicotinoids in bees: a review on concentrations, side-effects and risk assessment. Ecotoxicology 21 (4): 973-992. https://doi.org/10.1007/s10646-012-0863-x
Bretagnolle V, Gaba S (2015) Weeds for bees? A review. Agronomy for Sustainable Development 35 (3): 891-909. https://doi.org/10.1007/s13593-015-0302-5
Cameron S, Lozier J, Strange J, Koch J, Cordes N, Solter L, Griswold T (2011) Patterns of widespread decline in North American bumble bees. Proceedings of the National Academy of Sciences 108 (2): 662-667. https://doi.org/10.1073/pnas.1014743108
Carvalheiro LG, Kunin W, Keil P, Aguirre-Gutiérrez J, Ellis WN, Fox R, Groom Q, Hennekens S, Van Landuyt W, Maes D, Van de Meutter F, Michez D, Rasmont P, Ode B, Potts SG, Reemer M, Roberts SPM, Schaminée J, WallisDeVries M, Biesmeijer JC (2013) Species richness declines and biotic homogenisation have slowed down for NWEuropean pollinators and plants. Ecology Letters 16 (7): 870-878. https:// doi.org/10.1111/ele.12121
Delcour A, Stappen FV, Gheysens S, Decruyenaere V, Stilmant D, Burny P, Rabier F, Louppe H, Goffart JP (2014) Etat des lieux des flux céréaliers en Wallonie selon différentes filières d’utilisation. Biotechnologie, Agronomie, Société et Environnement 18 (2): 181-192.
Gallai N, Vaissière BE (2009) Guidelines for the economic valuation of pollination services at a national scale. FAO, Rome.
Gallai N, Salles J, Settele J, Vaissière B (2009) Economic valuation of the vulnerability of world agriculture confronted with pollinator decline. Ecological Economics 68 (3): 810-821. https://doi.org/10.1016/j.ecolecon.2008.06.014
Garibaldi L, Steffan-Dewenter I, Winfree R, Aizen M, Bommarco R, Cunningham S, Kremen C, Carvalheiro L, Harder L, Afik O, Bartomeus I, Benjamin F, Boreux V, Cariveau D, Chacoff N, Dudenhöffer J, Freitas B, Ghazoul J, Greenleaf S, Hipólito J, Holzschuh A, Howlett B, Isaacs R, Javorek S, Kennedy C, Krewenka K, Krishnan S, Mandelik Y, Mayfield M, Motzke I, Munyuli T, Nault B, Otieno M, Petersen J, Pisanty G, Potts S, Rader R, Ricketts T, Rundlöf M, Seymour C, Schüepp C, Szentgyörgyi H, Taki H, Tscharntke T, Vergara C, Viana B, Wanger T, Westphal C, Williams N, Klein A (2013) Wild Pollinators Enhance Fruit Set of Crops Regardless of Honey Bee Abundance. Science 339 (6127): 1608-1611. https://doi.org/10.1126/science.1230200
Garibaldi LA, Aizen MA, Cunningham SA, Klein AM (2009) Pollinator shortage and global crop yield. Communicative & Integrative Biology 2 (1): 37-39. https:// doi.org/10.4161/cib.2.1.7425
Goulson D, Nicholls E, Botías C, Rotheray E (2015) Bee declines driven by combined stress from parasites, pesticides, and lack of flowers. Science 347 (6229): 1255957-1255957. https://doi.org/10.1126/science.1255957
Haaland C, Naisbit R, Bersier L (2011) Sown wildflower strips for insect conservation: a review. Insect Conservation and Diversity 4 (1): 60-80. https://doi.org/10.1111/ j.1752-4598.2010.00098.x
Hoehn P, Tscharntke T, Tylianakis J, Steffan-Dewenter I (2008) Functional group diversity of bee pollinators increases crop yield. Proceedings of the Royal Society of London B: Biological Sciences 275 (1648): 2283-2291. https://doi.org/10.1098/ rspb.2008.0405
IPBES (2016) The assessment report of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services on pollinators, pollination and food production. Secretariat of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, Bonn, Germany, 552 pp.
Jha S, Kremen C (2013) Resource diversity and landscape-level homogeneity drive native bee foraging. Proceedings of the National Academy of Sciences 110 (2): 555-558. https://doi.org/10.1073/pnas.1208682110
Kleijn D, Raemakers I (2008) A Retrospective Analysis of Pollen Host Plant Use by Stable and Declining Bumble Bee Species. Ecology 89 (7): 1811-1823. https:// doi.org/10.1890/07-1275.1
Klein A, Vaissière BE, Cane JH, Steffan-Dewenter I, Cunningham SA, Kremen C, Tscharntke T (2007) Importance of pollinators in changing landscapes for world crops. Proceedings of the Royal Society B: Biological Sciences 274 (1608): 303-313. https:// doi.org/10.1098/rspb.2006.3721
Kosior A, Celary W, Olejniczak P, Fijal J, Król W, Solarz W, Plonka P (2007) The decline of the bumble bees and cuckoo bees (Hymenoptera: Apidae: Bombini) of Western and Central Europe. Oryx 41 (01): 79-88. https://doi.org/10.1017/S0030605307001597
Kremen C, Chaplin-Kramer R (2007) Insects as providers of ecosystem services: crop pollination and pest control. In: Stewart AJA, New TR, Lewis OT (Eds) Insect Conservation Biology: Proceedings of the Royal Entomological Society’s 23nd Symposium. [ISBN 978-1-84593-254-1].
Leclercq J, Gaspar C, Marchal JL, Verstraeten C, Wonville C (1980) Analyse des 1600 premieres cartes de l’ atlas provisoire des insectes de Belgique, et premiere liste rouge d’ insectes menaces dans la faune belge. Notes Fauniques de Gembloux (Belgium) 4: 1-104.
Lonsdorf E, Kremen C, Ricketts T, Winfree R, Williams N, Greenleaf S (2009) Modelling pollination services across agricultural landscapes. Annals of Botany 103: 1589-1600. https://doi.org/10.1093/aob/mcp069
Maebe K, Meeus I, Maharramov J, Grootaert P, Michez D, Rasmont P, Smagghe G (2012) Microsatellite analysis in museum samples reveals inbreeding before the regression of Bombus veteranus. Apidologie 44 (2): 188-197. https://doi.org/10.1007/ s13592-012-0170-9
Ollerton J, Winfree R, Tarrant S (2011) How many flowering plants are pollinated by animals? Oikos 120 (3): 321-326. https://doi.org/10.1111/j.1600-0706.2010.18644.x
Potts S, Biesmeijer J, Kremen C, Neumann P, Schweiger O, Kunin W (2010) Global pollinator declines: trends, impacts and drivers. Trends in Ecology & Evolution 25 (6): 345-353. https://doi.org/10.1016/j.tree.2010.01.007
Potts S, Imperatriz-Fonseca V, Ngo H, Aizen M, Biesmeijer J, Breeze T, Dicks L, Garibaldi L, Hill R, Settele J, Vanbergen A (2016) Safeguarding pollinators and their values to human well-being. Nature 540 (7632): 220-229. https://doi.org/10.1038/ nature20588
Rasmont P, Mersch P (1988) First estimation of faunistic drift by bumblebees of Belgium, (Hymenoptera: Apidae). - Première estimation de la dérive faunique chez les bourdons de la Belgique (Hymenoptera: Apidae). Annales de la Societe Royale Zoologique de Belgique 118: 141-147.
Rasmont P, Franzen M, Lecocq T, Harpke A, Roberts S, Biesmeijer K, Castro L, Cederberg B, Dvorak L, Fitzpatrick U, Gonseth Y, Haubruge E, Mahe G, Manino A, Michez D, Neumayer J, Odegaard F, Paukkunen J, Pawlikowski T, Potts S, Reemer M, Settele J, Straka J, Schweiger O (2015) Climatic Risk and Distribution Atlas of European Bumblebees. BioRisk 10: 1-236. https://doi.org/10.3897/biorisk.10.4749
Ricketts T, Regetz J, Steffan-Dewenter I, Cunningham S, Kremen C, Bogdanski A, Gemmill-Herren B, Greenleaf S, Klein A, Mayfield M, Morandin L, Ochieng’ A, Viana B (2008) Landscape effects on crop pollination services: are there general patterns? Ecology Letters 11 (5): 499-515. https://doi.org/10.1111/j.1461-0248.2008.01157.x
Scheper J, Holzschuh A, Kuussaari M, Potts S, Rundlöf M, Smith H, Kleijn D (2013) Environmental factors driving the effectiveness of European agri-environmental measures in mitigating pollinator loss - a meta-analysis. Ecology Letters 16 (7): 912-920. https://doi.org/10.1111/ele.12128
Senapathi D, Carvalheiro L, Biesmeijer J, Dodson C, Evans R, McKerchar M, Morton RD, Moss E, Roberts SM, Kunin W, Potts S (2015) The impact of over 80 years of land cover changes on bee and wasp pollinator communities in England. Proceedings of the Royal Society B: Biological Sciences 282 (1806): 20150294-20150294. https:// doi.org/10.1098/rspb.2015.0294
Steffan-Dewenter I, Klein AM, Gaebele V, Alfert T, Tscharntke T (2006) Bee diversity and plant-pollinator interactions in fragmented landscapes. In: Nickolas NM, Ollerton J (Eds) Plant-pollination interactions; from specialization to generalization. [ISBN 0-226-87400-1].
Winfree R, Kremen C (2009) Are ecosystem services stabilized by differences among species? A test using crop pollination. Proceedings of the Royal Society of London B: Biological Sciences 276 (1655): 229-237. https://doi.org/10.1098/rspb.2008.0709
Winfree R, Gross B, Kremen C (2011) Valuing pollination services to agriculture. Ecological Economics 71: 80-88. https://doi.org/10.1016/j.ecolecon.2011.08.001
Winfree R, Aguilar R, Vázquez D, LeBuhn G, Aizen M (2009) A meta-analysis of bees’ responses to anthropogenic disturbance. Ecology 90 (8): 2068-2076. https:// doi.org/10.1890/08-1245.1