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A Century of Advances in Bumblebee Domestication and the Economic and Environmental Aspects of Its Commercialization for Pollination Hayo H.W

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A Century of Advances in Bumblebee Domestication and the Economic and Environmental Aspects of Its Commercialization for Pollination Hayo H.W A century of advances in bumblebee domestication and the economic and environmental aspects of its commercialization for pollination Hayo H.W. Velthuis, Adriaan van Doorn To cite this version: Hayo H.W. Velthuis, Adriaan van Doorn. A century of advances in bumblebee domestication and the economic and environmental aspects of its commercialization for pollination. Apidologie, Springer Verlag, 2006, 37 (4), pp.421-451. hal-00892201 HAL Id: hal-00892201 https://hal.archives-ouvertes.fr/hal-00892201 Submitted on 1 Jan 2006 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. Apidologie 37 (2006) 421–451 421 c INRA/DIB-AGIB/ EDP Sciences, 2006 DOI: 10.1051/apido:2006019 Review article A century of advances in bumblebee domestication and the economic and environmental aspects of its commercialization for pollination* Hayo H.W. Va, Adriaan van Db a Klemit 1, 5325 KG Wellseind, The Netherlands b BumbleConsult, Rodenrijseweg 529, 2651 AR Berkel en Rodenrijs, The Netherlands Received 2 May 2005 – revised 1 November 2005 – accepted 8 November 2005 Abstract – This paper reviews a century of progress in techniques of bumblebee rearing, starting with those used to encourage bumblebee queens to initiate a colony in artificial domiciles and including those needed for the commercial production of large numbers of colonies for the pollination of agricultural crops. Five species of bumblebees are currently used for crop pollination, the major ones being Bombus terrestris from Eurasia and Bombus impatiens from North America. As a result of their frequent use in foreign territories, there have been reports of B. terrestris becoming established, as well as interactions and/or competition with local (bumble-) bee fauna. Of the many vegetable, fruit and seed crops that bumblebees pollinate, greenhouse tomatoes are of predominant importance. In 2004, 40 000 ha of tomato crops were pollinated, with a crop value of e 12 000 million. The growers benefit from bumblebee pollination because of lower production costs, increased yields, and improved fruit quality. The interrelationship between commercial mechanisms and ecological risks is discussed. bumblebee / pollination / commercial rearing / economic value / ecological impact 1. INTRODUCTION Although the potentials of the different bee species have been recognized by several re- Discussions on sustainable development searchers (e.g., Free, 1970, 1993; Parker et al., generally agree that nature still harbors large 1987; Cane, 1997), the diversity of the species numbers of organisms that are potentially and has not yet played an important role in the directly important to mankind. Their profitable design of agricultural systems. For example, use is just awaiting the discovery of their value when the pollination by ‘wild’ bees is sat- or the formulation of how they should be prop- isfactory, economic prospects will stimulate agated. With regard to the more than 20 000 farmers to increase the planted area. This will, species of bees (Michener, 2000), it has been however, lead to diminished effectiveness (e.g. recognized that all but the parasitic ones play a Kremen et al., 2002). To remedy this, more role in pollination, leading to the production of bees will have to be brought in from else- seeds and fruits, and that the various morpho- where or the local nesting success will have logical differences between the species (e.g., to be stimulated by providing nesting material body size and the absolute and relative tongue and alternative food sources. Such pollination length) are related to a certain degree of spe- schemes are usually limited to relatively small cialization for the various flower types. geographic regions. To date, there are three species of solitary bees that are produced on Corresponding author: H.H.W. Velthuis, a commercial basis to provide this kind of pol- [email protected] lination service: Nomia melanderi,usedinthe * Manuscript editor: Jean-Noël Tasei Article published by EDP Sciences and available at http://www.edpsciences.org/apido or http://dx.doi.org/10.1051/apido:2006019 422 H.H.W. Velthuis, A. van Doorn U.S. and New Zealand for alfalfa pollination, Röseler, 1979; Plowright and Laverty, 1987). Megachile rotundata, used in several countries In 1987 commercial rearing finally started. also for alfalfa; and Osmia cornifrons,used Now, 18 years after the start of commercial in Japan and the eastern U.S. for apples and rearing, almost one million colonies (mainly almonds (reviewed by Bohart, 1972; Torchio, B. terrestris and B. impatiens) are produced 1987; Maeta, 1990). A relatively new candi- annually. date for commercial rearing is Osmia lignaria, This paper describes (1) the history of bum- which is used in North America for a num- blebee research related to domestication, (2) ber of fruit crops, notably almonds and apples the current practice of commercial bumblebee (Torchio, 1987; Bosch and Kemp, 2001). rearing, (3) the crops commercially pollinated The potential value of bumblebees as pol- by bumblebees and their economic value, and linating insects in agriculture has been recog- last but not least (4) the environmental con- nized for a long time. Because their tongues cerns related to the commercial application of are longer than those of honeybees, bumble- bumblebees all over the world. bees are much better at pollinating flowers with deep corollas (Hobbs et al., 1961; Holm, 1966a). Because of this, hundreds of bumble- 2. HISTORY OF BUMBLEBEE bee queens, caught in the U.K., were deliber- RESEARCH RELATED TO ately introduced into New Zealand in 1885 and DOMESTICATION 1906, to improve seed set of red clover. Four of the species (Bombus hortorum, B. ruderatus, Since Sladen’s research (1912), a large B. subterraneus and B. terrestris) became es- number of interested naturalists as well as tablished (Hopkins, 1914). In 1982 and 1983, professional biologists, mainly in Europe and B. ruderatus was brought from New Zealand North America, have studied bumblebees and to Chile for the pollination of red clover. This published their results. These researchers lured species established itself there as well (Arretz spring queens to artificial domiciles and/or and MacFarlane, 1986). The potential of bum- collected queens in the field and got them es- blebees for crop pollination has been empha- tablished in nest boxes or observation hives sized repeatedly (e.g., Medler, 1957; Holm, (e.g., Jordan, 1936; Hasselrot, 1952, 1960; 1966a; Free, 1970, 1993; Pouvreau, 1984; Fye and Medler, 1954). While working with Plowright and Laverty, 1987). The same au- field collected queens of European species, thors also stressed that the exploitation of these they also discovered that colony initiation im- potentials should be based not only on prop- proved when the queens are first imprisoned agation of natural populations (for instance, for some time and/or provided with honey and through habitat improvement or the introduc- pollen inside the nest boxes. Sladen (1912) tion of artificial nesting boxes), but also on do- observed that placing queens in pairs led to mestication. aggressive behavior and subsequently to one Domestication attempts have a long history. of the queens starting to breed. He also at- Sladen, for example, addressed this subject in tained this stimulation effect using conspe- 1912 in Chapter VII of his famous book The cific workers or workers of a closely related humble-bee. He noted some problems, like species, e.g., workers of B. lucorum stimulated mating and hibernation, but was convinced queens of B. terrestris. Both species belong to that they could be overcome. Since Sladen’s the subgenus Bombus s.s. Latreille (Richards, publication, a large number of researchers has 1968; Williams, 1998). Sladen (1912) also contributed bits and pieces to the process of succeeded in getting young queens of B. lap- domestication, i.e. controlling every step of idarius to mate. Frison (1927) achieved the the bumblebee’s life cycle, but it was not un- same results with the North American species til the 1970s that domestication became a fact B. americanorum, B. bimaculatus and B. va- (e.g. Röseler, 1977). As soon as bumblebees gans. In addition, Frison (1927) succeeded in were domesticated, discussions on the pos- hibernating B. americanorum queens in jars sibilities for commercial rearing began (e.g., containing loose soil and old leaves, buried in Bumblebee commercialization for pollination 423 the ground outdoors. He did not, however, try first to publish a report on a continuous rear- to get these hibernated queens established in ing system for bumblebees. He discovered that his own nest boxes. During this period, i.e. the queens of B. hypnorum, after mating, could first half of the 20th century, all domestica- be induced to start a colony by bringing them tion attempts were similar in that, after colony into a rearing room with artificial illumination initiation, the colonies were left unattended in and raising the temperature in that room (he the field, i.e. the bees collected their own food used a temperature varying between 30 and nearby from a variety of natural vegetation or 35.5 ◦C). Horber also successfully applied this from seed crops. technique to queens that had hibernated for Early in the second half of the 20th century, a short time. This last strategy was adopted a number of researchers focused on improving by Plowright and Jay (1966), working with colony initiation. Cages or greenhouses were queens of the North American B. rufocinc- supplied with suitable food plants and nest tus (after a 4-week hibernation period) and boxes.
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