Bombus (Spanish Wikipedia)

Cueva del Castillo, R; Sanabria-Urbán, S.; Serrano-Meneses, M. A. (2015). «Trade-offs in the evolution of bumblebee colony and body size: a comparative analysis». Ecology and evolution 5 (18): 3914-3926. PMC 4588658. PMID 26445652. doi:10.1002/ece3.1659.
Lye, Gillian C.; Osborne, Juliet L.; Park, Kirsty J.; Goulson, Dave (noviembre de 2011). «Using citizen science to monitor Bombus populations in the UK: nesting ecology and relative abundance in the urban environment». Journal of Insect Conservation 16 (5): 697-707. ISSN 1366-638X. doi:10.1007/s10841-011-9450-3.
Walther-Hellwig, K.; Frankl, R. (2000). «Foraging distances of Bombus muscorum, Bombus lapidarius, and Bombus terrestris (Hymenoptera, Apidae)». Journal of Insect Behavior 13 (2): 239-246. doi:10.1023/A:1007740315207.
Dramstad, W. E.; Fry, G. L. A.; Schaffer, M. J. (2003). «Bumblebee foraging—is closer really better?». Agriculture, Ecosystems and Environment 95 (1): 349-357. doi:10.1016/S0167-8809(02)00043-9.
Osborne, J. L.; Clark, S. J.; Morris, R. J.; Williams, I. H.; Riley, J. R.; Smith, A. D.; Reynolds, D. R.; Edwards, A. S. (1999). «A landscape-scale study of bumble bee foraging range and constancy, using harmonic radar». Journal of Applied Ecology 36 (4): 519-533. doi:10.1046/j.1365-2664.1999.00428.x.
Cardinal, Sophie; Danforth, Bryan N. (junio de 2011). «The Antiquity and Evolutionary History of Social Behavior in Bees». PLOS ONE 6 (6): e21086. Bibcode:2011PLoSO...621086C. PMC 3113908. PMID 21695157. doi:10.1371/journal.pone.0021086.
Dillon, Michael E; Dudley, Robert (febrero de 2014). «Surpassing Mt. Everest: extreme flight performance of alpine bumble-bees». Biology Letters 10 (2): 20130922. doi:10.1098/rsbl.2013.0922.
Milliron, H. E.; Oliver, D. R. (1966). «Bumblebees from northern Ellesmere Island, with observations on usurpation by Megabombus hyperboreus (Schönh.)». Canadian Entomologist 98 (2): 207-213. doi:10.4039/Ent98207-2.

fed.us (Global: 2,181^st place; Spanish: 2,424^th place)

fs.fed.us

«Celebrating Wildflowers - Pollinator of the Month - Bumblebees». Consultado el 2009.

foodsecurity.ac.uk (Global: low place; Spanish: low place)

«Modelling bee pollination: enter the 'flight arena'». Global Food Security. Biotechnology and Biological Sciences Research Council. Consultado el 11 de febrero de 2015.

historiadelaslenguasenuruguay.edu.uy (Global: low place; Spanish: low place)

«Afronegrismos rioplatenses - Historia de las lenguas en Uruguay» (PDF). Boletín de la Real Academia Española: 107. Consultado el 15 de agosto de 2022.

infovisual.info (Global: low place; Spanish: low place)

issn.org (Global: 33^rd place; Spanish: 3^rd place)

portal.issn.org

Lye, Gillian C.; Osborne, Juliet L.; Park, Kirsty J.; Goulson, Dave (noviembre de 2011). «Using citizen science to monitor Bombus populations in the UK: nesting ecology and relative abundance in the urban environment». Journal of Insect Conservation 16 (5): 697-707. ISSN 1366-638X. doi:10.1007/s10841-011-9450-3.

nhm.ac.uk (Global: 416^th place; Spanish: 2,480^th place)

Williams, Paul H. (1998). «An annotated checklist of bumble bees with an analysis of patterns of description». Bulletin of the Natural History Museum (Entomology) 67: 79-152. Consultado el 30 de mayo de 2012.
«Map at: Bumblebees of the world». Natural History Museum. Consultado el 9 de julio de 2007.

nih.gov (Global: 5^th place; Spanish: 5^th place)

ncbi.nlm.nih.gov

Cueva del Castillo, R; Sanabria-Urbán, S.; Serrano-Meneses, M. A. (2015). «Trade-offs in the evolution of bumblebee colony and body size: a comparative analysis». Ecology and evolution 5 (18): 3914-3926. PMC 4588658. PMID 26445652. doi:10.1002/ece3.1659.
Cardinal, Sophie; Danforth, Bryan N. (junio de 2011). «The Antiquity and Evolutionary History of Social Behavior in Bees». PLOS ONE 6 (6): e21086. Bibcode:2011PLoSO...621086C. PMC 3113908. PMID 21695157. doi:10.1371/journal.pone.0021086.
NCBI

nrdc.org (Global: low place; Spanish: low place)

«NRDC: OnEarth Magazine, Summer 2006 – The Vanishing». Consultado el 9 de julio de 2007.

web.archive.org (Global: 1^st place; Spanish: 1^st place)

«Bumblebee nests». Bumblebee Conservation Trust. Archivado desde el original el 22 de septiembre de 2017. Consultado el 13 de febrero de 2015.

Bombus (Spanish Wikipedia)

adsabs.harvard.edu (Global: 14th place; Spanish: 43rd place)

archive.org (Global: 6th place; Spanish: 4th place)

asale.org (Global: low place; Spanish: 885th place)

bugguide.net (Global: 1,461st place; Spanish: 1,121st place)

bumblebeeconservation.org (Global: low place; Spanish: low place)

bumblebeeconservationtrust.co.uk (Global: low place; Spanish: low place)

casasglobal.org (Global: low place; Spanish: low place)

cornell.edu (Global: 308th place; Spanish: 340th place)

news.cornell.edu

doi.org (Global: 2nd place; Spanish: 2nd place)

dx.doi.org

fed.us (Global: 2,181st place; Spanish: 2,424th place)

fs.fed.us

foodsecurity.ac.uk (Global: low place; Spanish: low place)

historiadelaslenguasenuruguay.edu.uy (Global: low place; Spanish: low place)

infovisual.info (Global: low place; Spanish: low place)

issn.org (Global: 33rd place; Spanish: 3rd place)

portal.issn.org

nhm.ac.uk (Global: 416th place; Spanish: 2,480th place)

nih.gov (Global: 5th place; Spanish: 5th place)

ncbi.nlm.nih.gov

nrdc.org (Global: low place; Spanish: low place)

web.archive.org (Global: 1st place; Spanish: 1st place)

adsabs.harvard.edu (Global: 14^th place; Spanish: 43^rd place)

archive.org (Global: 6^th place; Spanish: 4^th place)

asale.org (Global: low place; Spanish: 885^th place)

bugguide.net (Global: 1,461^st place; Spanish: 1,121^st place)

cornell.edu (Global: 308^th place; Spanish: 340^th place)

doi.org (Global: 2^nd place; Spanish: 2^nd place)

fed.us (Global: 2,181^st place; Spanish: 2,424^th place)

issn.org (Global: 33^rd place; Spanish: 3^rd place)

nhm.ac.uk (Global: 416^th place; Spanish: 2,480^th place)

nih.gov (Global: 5^th place; Spanish: 5^th place)

web.archive.org (Global: 1^st place; Spanish: 1^st place)