| Non-bee insects are important contributors to global crop pollination R Rader, I Bartomeus, LA Garibaldi, MPD Garratt, BG Howlett, R Winfree, ... Proceedings of the National Academy of Sciences 113 (1), 146-151, 2016 | 1028 | 2016 |
| DNA barcoding and the mediocrity of morphology L Packer, J Gibbs, C Sheffield, R Hanner Molecular Ecology Resources 9 (s1), 42-50, 2009 | 330 | 2009 |
| Wolbachia and DNA Barcoding Insects: Patterns, Potential, and Problems MA Smith, C Bertrand, K Crosby, ES Eveleigh, J Fernandez-Triana, ... PloS one 7 (5), e36514, 2012 | 226 | 2012 |
| Unveiling cryptic species of the bumblebee subgenus Bombus s. str. worldwide with COI barcodes (Hymenoptera: Apidae) PH Williams, MJF Brown, JC Carolan, J An, D Goulson, AM Aytekin, ... Systematics and Biodiversity 10 (1), 21-56, 2012 | 210 | 2012 |
| DNA barcoding a regional bee (Hymenoptera: Apoidea) fauna and its potential for ecological studies CS Sheffield, PDN Hebert, PG Kevan, L Packer Molecular Ecology Resources 9, 196-207, 2009 | 205 | 2009 |
| The potential of cleptoparasitic bees as indicator taxa for assessing bee communities CS Sheffield, A Pindar, L Packer, PG Kevan Apidologie 44, 501-510, 2013 | 193 | 2013 |
| Leafcutter and mason bees of the genus Megachile Latreille (Hymenoptera: Megachilidae) in Canada and Alaska CS Sheffield, C Ratti, L Packer, T Griswold Canadian Journal of Arthropod Identification, 2011 | 139 | 2011 |
| The bee genera of eastern Canada L Packer, JA Genaro, CS Sheffield Canadian Journal of Arthropod Identification 10, 2007 | 122 | 2007 |
| Morphological and molecular delineation of a new species in the Ceratina dupla species-group (Hymenoptera: Apidae: Xylocopinae) of eastern North America SM Rehan, CS Sheffield Zootaxa 2873, 35-50, 2011 | 115 | 2011 |
| Diversity of cavity-nesting bees (Hymenoptera: Apoidea) within apple orchards and wild habitats in the Annapolis Valley, Nova Scotia, Canada CS Sheffield, PG Kevan, SM Westby, RF Smith The Canadian Entomologist 140 (02), 235-249, 2008 | 99 | 2008 |
| Bee species of Nova Scotia, Canada, with new records and notes on bionomics and floral relations (Hymenoptera: Apoidea) CS Sheffield, PG Kevan, RF Smith Journal of the Kansas Entomological Society, 357-384, 2003 | 88 | 2003 |
| Pollination, seed set and fruit quality in apple: studies with Osmia lignaria (Hymenoptera: Megachilidae) in the Annapolis Valley, Nova Scotia, Canada CS Sheffield Journal of Pollination Ecology 12, 120-128, 2014 | 86 | 2014 |
| Bee diversity in naturalizing patches of Carolinian grasslands in southern Ontario, Canada MH Richards, A Rutgers-Kelly, J Gibbs, JL Vickruck, SM Rehan, ... Canadian Entomologist 143 (3), 279, 2011 | 84 | 2011 |
| Rapid Range Expansion of the Wool-Carder Bee, Anthidium manicatum (Linnaeus)(Hymenoptera: Megachilidae), in North America J Gibbs, CS Sheffield Journal of the Kansas Entomological Society 82 (1), 21-29, 2009 | 82 | 2009 |
| Bee phenology is predicted by climatic variation and functional traits M Stemkovski, WD Pearse, SR Griffin, GL Pardee, J Gibbs, T Griswold, ... Ecology Letters 23 (11), 1589-1598, 2020 | 75 | 2020 |
| The bees (Hymenoptera: Apoidea, Apiformes) of the Prairies Ecozone, with comparisons to other grasslands of Canada CS Sheffield, SD Frier, S Dumesh Arthropods of Canadian grasslands 4, 427-467, 2014 | 75 | 2014 |
| DNA barcoding reveals diversity of Hymenoptera and the dominance of parasitoids in a sub-arctic environment JK Stahlhut, J Fernández-Triana, SJ Adamowicz, M Buck, H Goulet, ... BMC ecology 13, 1-13, 2013 | 72 | 2013 |
| Genes suggest ancestral colour polymorphisms are shared across morphologically cryptic species in arctic bumblebees PH Williams, AM Byvaltsev, B Cederberg, MV Berezin, F Ødegaard, ... Plos one 10 (12), e0144544, 2015 | 66 | 2015 |
| Bee (Hymenoptera: Apoidea) diversity within apple orchards and old fields in the Annapolis Valley, Nova Scotia, Canada CS Sheffield, PG Kevan, A Pindar, L Packer The Canadian Entomologist 145 (1), 94-114, 2013 | 60 | 2013 |
| Perfect Syncarpy in Apple (Malus × domestica ‘Summerland McIntosh’) and its Implications for Pollination, Seed Distribution and Fruit Production (Rosaceae … CS Sheffield, RF Smith, PG Kevan Annals of Botany 95 (4), 583-591, 2005 | 60 | 2005 |
Peter KevanUniversity of Guelph在 uoguelph.ca 的电子邮件经过验证
