Abstract
Numerous studies suggest that honeybees may compete with native pollinators where introduced as non-native insects. Here we examine evidence for competition between honeybees and four bumblebee species in Scotland, a region that may be within the natural range of honeybees, but where domestication greatly increases the honeybee population. We examined mean thorax widths (a reliable measure of body size) of workers of Bombus pascuorum, B. lucorum, B. lapidarius and B. terrestris at sites with and without honeybees. Workers of all four species were significantly smaller in areas with honeybees. We suggest that reduced worker size is likely to have implications for bumblebee colony success. These results imply that, for conservation purposes, some restrictions should be considered with regard to placing honeybee hives in or near areas where populations of rare bumblebee species persist.
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References
Beekman M, Van Stratum P, Lingeman R (1998) Diapause survival and post-diapause performance in bumblebee queens (Bombus terrestris). Entomol Exp Applic 89:207–214
Butz Huryn VM (1997) Ecological impacts of introduced honey bees. Quart Rev Bio 72:275–297
Coffey MF, Breen J (1997) Seasonal variation in pollen and nectar sources of honey bees in Ireland. J Apic Res 36:63–76
Crane E (1990a) Bees and beekeeping: science, practice, and world resources. Cornell University Press, Cornstock Publishing Associates, Ithaca, NY
Crane E (1990b) Bees and beekeeping. Heinemann Newnes, Oxford
Darvill B, Knight ME, Goulson D (2004) Use of genetic markers to quantify bumblebee foraging range and nest density. Oikos 107:471–478
Goulson D (2003a) Effects of introduced bees on native ecosystems. Ann Rev Ecol Evol Syst 34:1–26
Goulson D (2003b) Bumblebees—their behaviour and ecology. Oxford University Press, Oxford
Goulson D (2004) Keeping bees in their place: impacts of bees outside their natural range. Bee World 85:45–46
Goulson D, Derwent LC (2004) Synergistic interactions between an exotic honeybee and an exotic weed: pollination of Lantana camara in Australia. Weed Res 44:195–202
Goulson D, Lye GC, Darvill B (in press) The decline and conservation of bumblebees. Ann Rev Entomol
Goulson D, Peat J, Stout JC, Tucker J, Darvill B, Derwent LC, Hughes WOH (2002) Can alloethism in workers of the bumblebee Bombus terrestris be explained in terms of foraging efficiency? Anim Behav 64:123–130
Knee WJ, Medler JT (1965) The seasonal size increase of bumblebee workers (Hymenoptera: Bombus). Can Entomol 97:1149–1155
Knight ME, Bishop S, Martin AP, Osborne JL, Hale RJ, Sanderson RA, Goulson D (2005) An interspecific comparison of foraging range and nest density of four bumblebee (Bombus) species. Mol Ecol 14:1811–1820
Michener CD (1974) The social behavior of the bees: a comparative study. 2nd edn. Harvard University Press (Belknap Press), Cambridge (MA), p 404
Paini DR (2004) Impact of the introduced honey bee (Apis mellifera) (Hymenoptera: Apidae) on native bees: a review. Austral Ecol 29:399–407
Peat J, Darvill B, Ellis J, Goulson D (2005a) Effects of climate on intra- and inter-specific size variation in bumble-bees. Func Ecol 19:145–151
Peat J, Goulson D (2005) Effects of experience and weather on foraging efficiency and pollen versus nectar collection in the bumblebee, Bombus terrestris. Behav Ecol Sociobiol 58:152–156
Peat J, Tucker J, Goulson D (2005b) Does intraspecific size variation in bumblebees allow colonies to efficiently exploit different flowers? Ecol Entomol 30:176–181
Plowright RC, Jay SC (1968) Caste differentiation in bumblebees (Bombus Latr.: Hym.) 1. The determination of female size. Ins Soc 15:171–192
Ribeiro MF (1994) Growth in bumblebee larvae—relation between development time, mass, and amount of pollen ingested. Can J Zool 72:1978–1985
Spaethe J, Weidenmuller A (2002) Size variation and foraging rate in bumblebees (Bombus terrestris). Ins Soc 49:142–146
Sutcliffe GH, Plowright RC (1988) The effects of food supply on adult size in the bumblebee Bombus terricola kirby (Hymenoptera: Apidae). Can Entomol 120:1051–1058
Thomson D (2004) Competitive interactions between the invasive european honeybee and native bumble bees. Ecology 85:458–470
Thomson D (2006) Detecting the effects of introduced species: a case study of competition between Apis and Bombus. Oikos 114:407–418
Walther-Hellwig K, Fokul G, Frankl R, Buechler R, Ekschmitt K, Wolters V (2006) Increased density of honeybee colonies affects foraging bumblebees. Apidologie 37:517–532
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Thanks to Jennifer Harrison-Cripps who helped with the initial bee survey.
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Goulson, D., Sparrow, K.R. Evidence for competition between honeybees and bumblebees; effects on bumblebee worker size. J Insect Conserv 13, 177–181 (2009). https://doi.org/10.1007/s10841-008-9140-y
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DOI: https://doi.org/10.1007/s10841-008-9140-y