Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-24T12:08:30.975Z Has data issue: false hasContentIssue false

WORKER-MALE CONFLICT AND INBREEDING IN BUMBLE BEES (HYMENOPTERA: APIDAE)

Published online by Cambridge University Press:  31 May 2012

R.C. Plowright
Affiliation:
Department of Zoology, University of Toronto, Toronto, Ontario M5S 1A1
M.J. Pallett
Affiliation:
Department of Zoology, University of Toronto, Toronto, Ontario M5S 1A1

Abstract

Worker-male conflict in different bumble bee species is strongly associated with tendency, toward inbreeding. It is hypothesized that the major cost imposed by inbreeding arises from the production of diploid males in place of workers, during the early phases of colony development. The consequent dilution of the labour force slows down colony growth and leads to ultimate reduction in reproductive success. An experiment to test this hypothesis is described, using consanguineously mated queens of B. atratus Fkln. Colonies yielding a 1:1 mixture of males and workers grew significantly more slowly than normal all-worker producing colonies, providing support for the hypothesis.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Garofalo, C.A. 1973. Occurrence of diploid drones in a neotropical bumblebee. Experientia 29: 726727.Google Scholar
Macevicz, S. and Oster, G.. 1976. Modelling social insect populations. II: Optimal reproductive strategies in annual eusocial insect colonies. Behav. Ecol. Sociobiol. 1: 265282.Google Scholar
Plowright, R.C. and Jay, S.C.. 1966. Rearing bumble bee colonies in captivity. J. apic. Res. 5: 155165.Google Scholar
Plowright, R.C. and Jay, S.C.. 1968. Caste differentiation in bumble bees (Bombus Latr.: Hym.). Insectes Soc. 15: 171192.Google Scholar
Pomeroy, N. 1977. Nesting biology of Bombus ruderatus Fabricius (Hymenoptera: Apidae). M.Sc. Thesis, Massey Univ., New Zealand.Google Scholar
Sakagami, Sh.F. and Zucchi, R.. 1965. Winterverhalten einer neotropischen Hummel. Bombus atratus, innerhalb des Beobachtungskastens. Ein Beitrag zur Biologie der Hummeln. J. Fac. Sci. Hokkaido (imp.) Univ. (Zool.) 15: 712762Google Scholar
Trivers, R.L. and Hare, H.. 1976. Haplodiploidy and the evolution of the social insects. Science 191: 249263.Google Scholar
Webb, M.C. III. 1961. The biology of the bumblebees of a limited area in eastern Nebraska. Ph.D. Thesis, University of Nebraska.Google Scholar
West Eberhard, M.J. 1969. The social biology of polistine wasps. Misc. Publ. Mus. Zool. Univ. Mich. 140. 101 pp.Google Scholar
Wilson, E.O. 1971. The insect societies. Harvard Univ. Press, Cambridge, Mass.Google Scholar
Woyke, J. 1963. What happens to diploid drone larvae in a honeybee colony. J. apic. res. 2: 7376.CrossRefGoogle Scholar