PUBLICATIONS    Publications in peer-reviewed journals

1. Crewe, R.M., Brand, J.M. & Fletcher, D.J.C. Identification of an alarm pheromone in the ant Crematogaster peringueyi. Ann. ent. Soc. Am. 62: 1212 (1969).

2. Blum, M.S., Crewe, R.M., Sudd, J.H.& Garrison, A.E. 2-Hexenal: Isolation and function in a Crematogaster (Atopogyne) sp. J. Georgia ent. Soc. 4: 145-148 (1969).

3. Crewe, R.M., Brand, J.M., Fletcher, D.J.C. and Eggers, S.H. The mandibular gland chemistry of some South African species of Crematogaster. J. Georgia ent. Soc. 5: 42-47 (1970).

4. Pasteels, J.M., Crewe, R.M. and Blum, M.S. Etude histologique et examen an microscope electronique a balayage de la glande secretant la pheromone de piste chez deux Crematogaster nordamericains. C.R. Acad. Sci. Paris 271: 835-838 (1970).

5. Crewe, R.M. and Blum, M.S. Identification of the alarm pheromones of the ant Myrmica brevinodis. J. Insect Physiol. 16: 141-146 (1970).

6. Crewe, R.M. and Blum, M.S. Alarm pheromones in the genus Myrmica: their composition and species specificity. Z. vergl. Physiol. 70: 363-373 (1970).

7. Blum, M.S., Crewe, R.M., Kerr, W.E., Keith, L.H., Garrison, A. & Walker, M.M. Citral in stingless bees: Isolation and functions in trail-laying and robbing. J. Insect Physiol. 16: 1637-1648 (1970).

8. Crewe, R.M. and Blum, M.S. 6-Methyl-5-hepten-2-one: Chemotaxonomic significance in an Iridomyrmex sp. Ann. ent. Soc. Am. 64: 1007 (1971).

9. Blum, M.S., Crewe, R.M. and Pasteels, J.M. Defensive secretion of Lomechusa strumosa, a myrmecophilous beetle. Ann. ent. Soc.Am. 64: 975-976 (1971).

10. Crewe, R.M. and Blum, M.S. Alarm pheromones of Attini: their phylogenetic significance. J. Insect Physiol. 18: 31-42 (1972).

11. Fales, H.M., Blum, M.S., Crewe, R.M. and Brand, J.M. Mandibular gland derived alarm pheromones in the ant genus Manica. J. Insect Physiol. 18: 1077-1088 (1972).

12. Crewe, R.M., Blum, M.S. and Collingwood, C.A. Comparative analysis of the alarm pheromones in the ant genus Crematogaster. Comp. Biochem. Physiol. 43B: 703-716 (1972).

13. Crewe, R.M. and Fletcher, D.J.C. Ponerine ant secretions: The mandibular gland secretion of Paltothyreus tarsatus. J. ent. Soc. sth. Afr. 37: 291-298 (1974).

14. Crewe, R.M. and Ross, F.P. Biosynthesis of sulphides by an ant. Nature (Lond.) 254: 448-449 (1975).

15. Crewe, R.M. and Ross, F.P. Pheromone biosynthesis. The formation of sulphides by the ant Paltothyreus tarsatus. Insect Biochem. 5: 839-843 (1975).

16. Scott, P.D., Hepburn, H.R. and Crewe, R.M. The pygidial defensive secretions of some Anthiine beetles. Insect Biochem. 5: 805-811 (1975).

17. Crewe, R.M. Aggressiveness of honeybees and their pheromone production. S. Afr. J. Sci. 72: 209-212 (1976).

18. Crewe, R.M. and Fletcher, D.J.C. Volatile secretions of two Old World stingless bees. S. Afr. J. Sci. 72: 119-120 (1976).

19. Crewe, R.M. and Hastings, H. Production of pheromones by workers of Apis mellifera adansonii. J. apic. Res. 15: 149-154 (1976).

20. Pedder, D.J., Fales, H.M., Jaouni, T., Blum, M.S., Duffield, R., MacConnell, J. and Crewe, R.M. Constituents of the venom of a South African Fire ant (Solenopsis punctaticeps): 2-ethyl-5-alkylpyrrolidines and pyrrolines, identification and synthesis. Tetrahedron 32: 2275-2279 (1976).

21. Hersch, M., Crewe, R.M., Hepburn, H.R., Thompson, P.R. andSavage, N. Sequential development of glycolytic competence in the muscles of worker honeybees. Comp. Biochem. Physiol. 61B: 427-431 (1978).

22. Hersch, M., Crewe, R.M., Hepburn, H.R., Thompson, P.R. and Savage, N. Enzymatic throttles in honeybee muscle. S.A. J. Sci. 74: 260-261 (1978).

23. Crewe, R.M., and Thompson, P.R. Oecophylla silk: functional adaptation in a biopolymer. Naturwiss. 66: 57-58 (1979).

24. Crewe, R.M., Burger, B.V., Le Roux, M. and Katsir, Z. Chemical constituents of the chest gland secretion of the thicktailed galago (Galago crassicaudatus). J. Chem. Ecol. 5: 861-868 (1979).

25. Katsir, Z. and Crewe, R.M. Chemical communication in Galago crassicaudatus: Investigation of the chest gland secretion. S.A. J. Zool. 15: 249-254 (1980).

26. Crewe, R.M. and Velthuis, H.H.W. False queens: a consequence of mandibular gland signals in worker honeybees. Naturwiss. 67: 467-469 (1980).

27. Fletcher, D.J.C. and Crewe, R.M. New records of stingless bees in Natal. J. sth. Afr. ent. Soc. 44: 197-198 (1981).

28. Fletcher, D.J.C. and Crewe, R.M. Nest structure and thermoregulation in the stingless bee, Trigona (Plebeina) denoiti Vachal (Hymenoptera: Apidae). J. sth. Afr. ent. Soc. 44: 183-196 (1981).

29. Keeping, M., Crewe, R.M. and Field, B.I. Mandibular gland secretions of the old world stingless bee, Trigona gribodoi Magretti: isolation, identification and compositional changes with age. J. apic. Res. 21: 65-73 (1982).

30. Burger, B.V., Munro, Z., Roth, M., Spies, H., Truter, V., Tribe, G. and Crewe, R.M. Composition of the heterogeneous sex attracting secretion of the dung beetle, Kheper lamarcki. Z.Naturforsch. 38c: 848-855 (1983).

31. Peeters, C.P. and Crewe, R.M. Insemination controls the reproductive division of labor in a ponerine ant. Naturwiss. 71: 50-51 (1984).

32. Villet, M., Peeters, C.P. and Crewe, R.M. The occurrence of a pygidial gland in four genera of ponerine ants (Hymenoptera: Formicidae). J. Georgia Entomol Soc. 19: 413-416 (1984).

33. Crewe, R.M., C.P. Peeters and M. Villet. Frequency distribution of worker sizes in Megaponera foetens (Fabricius). S. Afr. J. Zool. 19: 247-248 (1984).

34. Peeters, C.P. and R.M. Crewe Worker reproduction in the ponerine ant Ophthalmopone berthoudi an alternative form of eusocial organization. Behav. Ecol. Sociobiol. 18: 29-37 (1985).

35. Peeters, C.P. and R.M. Crewe Queenlessness and reproductive differentiation in Ophthalmopone hottentota. S. Afr. J. Zool. 20: 268 (1985).

36. Keeping, M.G., D. Lipschitz and R.M. Crewe Chemical mate recognition and the release of male sexual behaviour in the polybiine wasp, Belonogaster petiolata (Hymenoptera: Vespidae). J. Chem. Ecol. 12: 773-779 (1986).

37. Peeters, C.P. and R.M. Crewe. Queenright and queenless breeding systems within the genus Pachycondyla (Hymenoptera: Formicidae). J. ent. Soc. sth. Afr. 49: 251-255 (1986).

38. Peeters, C.P. and R.M. Crewe Male biology in the queenless ponerine ant Ophthalmopone berthoudi (Hymenoptera: Formicidae). Psyche 93: 277-284 (1986).

39. Peeters, C. and R. Crewe. Foraging and recruitment in Ponerine ants: solitary hunting in the queenless Ophthalmopone berthoudi (Hymenoptera: Formicidae). Psyche 94: 201-214 (1987).

40. Buco, S.M., Rinderer, T.E., Sylvester, H.A., Collins, A.M., Lancaster, V.A. & Crewe, R.M. Morphometric differences between South American Africanized and South African (Apis mellifera scutellata) honey bees. Apidologie 18: 217-222 (1987).

41. Mar, T., Brill, J., Bertsch, W., Fletcher, D.J.C. and Crewe, R.M. Investigation of cuticular hydrocarbons from selected honeybee populations by gas chromatography with pattern recognition. J. Chrom. 399: 277-290 (1987).

42. Sellers, C.S., Mar, T., Bertsch, W. and Crewe, R.M. Investigation of African honeybee races. J. HRC & CC. 10, 674-675 (1987).

43. Peeters, C.P. and Crewe, R.M. -Worker laying in the absence of an ergatoid queen in the ponerine ant genus Plectroctena. S. Afr. J. Zool. 23: 78-80 (1988).

44. de Korte, M., Weissenbacher, B.K.H. and Crewe, R.M. -Chemical signals in a stingless bee, Trigona (Meliplebeia) denoiti Vachal (Hymenoptera: Apidae: Meliponinae). J. ent. Soc. sth. Afr. 51: 9-16 (1988).

45. Wiffler, L.A., Drusedau, M.U.H., Crewe, R.M. & Hepburn, H.R. -Defensive behaviour and division of labour in the African honeybee (Apis mellifera scutellata). J. Comp. Physiol.A 163: 401-411 (1988).

46. Wildman, M. and Crewe, R.M. - Gamergate number and control over reproduction in Pachycondyla krugeri (Forel) (Hymenoptera: Formicidae). Insectes Soc. 35: 217-225 (1988).

47. Moritz, R.F.A & Crewe, R.M. Reaction of honeybee workers (Apis mellifera L.) to fatty acids in queen signals. Apidologie 19: 333-342 (1988).

48. Moritz, R.F.A. & Crewe, R.M. Air ventilation in nests of two African stingless bees Trigona denoiti and Trigona gribodoi. Experientia 44: 1024-1027 (1988).

49. Moritz, R.F.A. & Crewe, R.M. -Chemical signals of queens in kin recognition of honey bees, Apis mellifera L. J. Comp. Physiol. 164: 83-89 (1988).

50. Villet, M.H., Crewe, R.M. and Robertson, H. Mating behaviour and dispersal in Paltothyreus tarsatus Fabr. (Hymenoptera: Formicidae). J. Insect Behav. 2: 413- 417 (1989).

51. Crewe, R.M. & Moritz, R.F.A. Mandibular gland fatty acid variation in workers and queens of Apis mellifera intermissa ButtelReepen. Z. Naturforsch. 44c: 68-74 (1989).

52. Fouche, A., Crewe, R.M. & Windsor, I.M. Vertical transmission of the hepatitis B virus in Culex quinquefasciatus Say (Diptera: Culicidae). Med. Vet. Ent. 3: 385-389 (1989).

53. Villet, M.H., Hart, A.P.L. & Crewe, R.M. Social organisation and division of labour in the ponerine ant Platythyrea lamellosa (Roger). SA J Zool. 25: 250-253 (1990).

54. Fouche, A., Crewe, R.M., Windsor, I.M. & Karim, S.S. Abdool. Persistence of hepatitis B antigen in Culex quinquegfasciatus (Diptera: Culicidae). J. Medical Entomology 27: 697-700 (1990).

55. Hepburn, H.R. & Crewe, R.M. Defining the Cape honeybee: reproductive traits of queenless workers. SA J. Sci. 86: 524-527 (1990).

56. Moritz, R F A, Kirchner, W.H. and Crewe, R.M. Chemical camouflage of the Death's Head Hawkmoth (Acherontia atropos L.) in honeybee colonies. Naturwiss. 78: 179-182 (1991).

57. Moritz, R.F.A. and Crewe, R.M. The volatile emission of honeybee queens (Apis mellifera L.). Apidologie 22: 205-212 (1991).

58. Villet, M.H., Hart, A. & Crewe, R.M. Social organisation of Platythyrea lamellosa (Roger) (Hymenoptera: Formicidae). SA J. Zool. 25: 250-253 (1990).

59. Villet, M.H., Crewe, R.M. and Duncan, F.D. Evolutionary trends in the reproductive biology of ponerine ants (Hymenoptera: Formicidae). J. Natural History 25: 1603-1610 (1991).

60. Hepburn, H.R. & Crewe, R.M. Portrait of the Cape Honeybee, Apis mellifera capensis. Apidologie 22: 567-580 (1991).

61. Hung, A.C.F., Rubink, W.L. & Crewe, R.M. Association of enzyme/protein loci in individual honeybees (Hymenoptera: Apidae). Bee Science 1: 225-229 (1991).

62. Duncan, F.D. & Crewe, R.M. 1993. A comparison of the energetics of foraging of three species of Leptogenys (Hymenoptera: Formicidae).Physiological Entomology 18(4): 372-378.

63. Crewe, R.M., Hepburn, H.R. and Moritz, R.F.A. Morphometric analysis of two southern African races of honeybees. Apidologie 25: 61-70 (1994).

64. Duncan, F.D. & Crewe, R.M. 1994. Field study on the foraging characteristics of a ponerine ant, Hagensia havilandi Forel. Insectes Sociaux 41: 85-98.

65. Duncan, F.D. & Crewe, R.M. 1994. Group hunting in a ponerine ant, Leptogenys nitida Smith. Oecologia 97: 118-123.

66. Fielden, L.J., Duncan, F.D., Rechav, Y. & Crewe, R.M. 1994. Respiratory gas exchange in the tick Amblyomma hebraeum (Acari: Ixodidae). Journal of Medical Entomology 31: 30-35.

67. Sledge, M.F., Crewe, R.M. & Peeters, C.P. 1996. On the relationship between gamergate number and reproductive output in the queenless ponerine ant Pachycondyla (=Opthalmopone) berthoudi. Naturwiss. 83: 282-284.

68. Crewe, R.M. 1997. The world view of the natural sciences. Scriptura 61: 93-96.

69. Brockmann, A., Brückner, D. & Crewe, R.M. 1998. The EAG-response spectra of workers and drones of queen honeybee mandibular gland components: the evolution of a social signal. Naturwiss. 85: 283-285.

70. Wossler, T.C. & Crewe, R.M. 1999. The releaser effects of the tergal gland secretions of queen honeybees (Apis mellifera). J. Insect Behaviour 12: 343-351.

71. Sledge, M.F., Peeters, C.P. & Crewe, R.M. 1999. Fecundity and the behavioural profile of reproductive workers in the queenless ant Pachycondyla (=Ophthalmopone) berthoudi (Formicidae, Ponerinae). Ethology 105: 303-316.

72. Wossler, T.C. & Crewe, R.M. 1999. Mass spectral identification of the tergal gland secretions of female castes of two African honeybee populations (Apis mellifera) J. Apic. Research 38: 137-148.

73. Wossler, T.C. & Crewe, R.M. 2000. Honeybee queen tergal gland secretions and the suppression of worker ovarian development. Apidologie 30: 311-320.

74. Wossler, T.C., Veale, R.B. & Crewe, R.M. 2000. How queen-like are the tergal glands in workers of A. mellifera capensis and A. mellifera scutellata? Apidologie 31: 55-66.

75. Franck, P., Solignac, M., Koeniger, N., Lahner, G., Crewe, R.M., Garnery, L. & Cornuet, J.-M. 2000. Evolution of extreme polyandry: an estimate of mating frequency in two African honeybee subspecies, Apis mellifera monticola and A. m. scutellata. Insectes Sociaux 47: 364-370.

76. Moritz, R.F.A., Crewe, R.M. & Hepburn, H.R. 2000. Clustering of related workers in the honeybee colony (Apis mellifera L.): adaptive process or inevitable pattern? Apidologie 31: 223-233.

77. Moritz, R.F.A., Simon, U.E. & Crewe, R.M. 2000. Pheromonal contests between honeybee workers. Naturwiss. 87: 395-397.

78. Becker, M.M., Brückner,D. & Crewe, R.M. 2000. Behavioral response of honeybee drones of Apis mellifera carnica and Apis mellifera scutellata to worker produced pheromone components. J. apic. Research 39: 149-152.

79. Meyer, V.W., Crewe, R.M., Braack, L.E.O., Groeneveld, H.T. & Van der Linde, M.J. 2000. Intracolonial demography of the mound-building termite Macrotermes natalensis (Haviland) (Isoptera, Termitidae) in the northern Kruger National Park, South Africa. Insectes Sociaux 47:390-397.

80. Moritz, R.F.A., Crewe, R.M. & Hepburn, H.R. 2001. Attraction and repellence of workers by the honeybee queen ( Apis mellifera L.) Ethology 107: 465-477.

81. Sledge, M.F., Peeters, C.P. & Crewe, R.M. 2001. Reproductive division of labour without dominance interactions in the queenless ponerine ant Pachycondyla (=Ophthalmopone) berthuodi (Formicidae, Ponerinae). Insectes Sociaux 48: 67-73.

82. Simon, U.E., Moritz, R.F.A. & Crewe, R.M. 2001. The ontogenetic pattern of mandibular gland components in queenless worker honeybees (Apis mellifera capensis Esch.). J. Insect Physiol. 47: 735-738.

83. Meyer, V.W., Crewe, R.M., Braack, L.E.O., Groeneveld, H.T. & van der Linde, M.J. 2001. Biomass of Macrotermes natalensis in the northern Kruger National Park, South Africa - the effects of land characteristics. Sociobiology 38: 431-448.

84. Moritz, R.F.A., Crewe, R.M. & Hepburn, H.R. 2002. Queen avoidance and mandibular gland secretion of worker honeybees (Apis mellifera L.). Insectes Sociaux 48: 1-7 (2002).

85. Sole, C.L., Kryger, P., Hefetz, A., Katsav-Gozansky, T. & Crewe, R.M. 2002. Mimicry of queen Dufour’s gland secretions by workers of Apis mellifera scutellata and A.m. capensis. Naturwissenschaften 89: 561-564.

86. Moritz, R.F.A., Pflugfelder, J. & Crewe, R.M. 2003. Lethal fighting between honeybee queens and parasitic workers (Apis mellifera). Naturwissenschaften 90: 378-381.

87. Meyer, V.W., Crewe, R.M. & Braack, L.E.O. 2003. Estimates of food consumption by the fungus-growing termite Macrotermes natanlensis in a South African savanna-woodland. SA J. Sci. 99: 207-208.

88. Moritz, R.F.A., Lattorff, H.M.G. & Crewe, R.M. 2003. Honeybee workers (Apis mellifera capensis) compete for producing queen-like pheromone signals. Proc. R. Soc. Lond. B (Suppl). 271: S98-S100.

89. Crewe, R.M., Lattorff, H.M.G. & Moritz, R.F.A. 2004. Trapping pheromonal components with silicone rubber tubes: fatty acid secretions in honeybees (Apis mellifera). Chemoecology 14: 77-79.

90. Cuvillier-Hot, V., Lenoir, A., Crewe, R., Malosse, C. & Peeters, C. 2004. Fertility signaling and reproductive skew in queenless ants. Animal Behaviour 68: 1209-1219.

91. Simon, U.E., Moritz, R.F.A. & Crewe, R.M. 2005. Reproductive dominance among experimental groups of Apis mellifera capensis. Apidologie 36: 413-419.

92. Härtel, S., Neumann, P., Kryger, P., von der Heide, C., Moltzer, G.-J., Crewe, R.M., Moritz, R.F.A. & van Praagh, J. 2006. Infestation levels of Apis mellifera scutellata swarms by socially parasitic Cape honeybee workers (A. mellifera capensis ). Apidologie 37: 462-470.

93. Brent, C., Peeters, C.P., Dietemann, V., Crewe, R.M., & Vargo, E. 2006. Hormonal Correlates of Reproductive Status in the Queenless Ponerine Ant, Streblognathus peetersi. Journal of Comparative Physiology 192: 315-320.

96. Dietemann, V., Lubbe, A., & Crewe, R.M. 2006. Human factors facilitating the spread of a parasitic honeybee in South Africa. Journal of Economic Entomology 99: 7-13.

97. Bennett, L., Silberbauer, L.X. & Crewe, R.M. 2006. Nest and nestmate recognition cues in a primitively social bee, Allodape rufogastra Lepeletier & Serville (Hymenoptera: Apidae). African Entomology 14: 175-183.

98. Dietemann, V., Pflugfelder, J., Härtel, S., Neumann, P. & Crewe, R.M. 2006. Social parasitism by honeybee workers (Apis mellifera capensis Esch.): evidence of pheromonal resistance to host queen’s resistance. Behavioural Ecology and Sociobiology 60:785-793.

99. Schäfer MO, Dietemann V, Pirk CWW, Neumann P, Crewe RM, Hepburn HR, Tautz J, Crailsheim K. 2006 Individual versus social pathway to honeybee worker reproduction (Apis mellifera): pollen or jelly as protein source for

oogenesis? Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology 192:761-768.

100. Dietemann, V., Neumann, P., Härtel, S., Pirk, C.W.W. & Crewe, R.M. 2007. Pheromonal dominance and the selection of a socially parasitic honeybee worker lineage (Apis mellifera capensis Esch.). J. Evol. Biol. 20: 997-1007.

101. Moritz, R.F.A., Kraus, F.B., Kryger, P & Crewe, R.M. 2007. The size of wild honeybee populations (Apis mellifera) and its implications for the conservation of honeybees. J Insect Conserv. 11:391–397.

102. Lattorff, H.M.G., Moritz, R.F.A., Crewe, R.M., & Solignac, M. 2007. Control of reproductive dominance by the thelytoky gene in honeybees. Biology Letters 3: 292-295.

103. Dietemann,V., Pirk, C.W.W., Zheng, H-Q., Hepburn, C., Hepburn, H.R., Jin, S-H., Crewe, R.M., Radloff, S.E., Hu, F-L. 2008. Self assessment in insects: honeybee queens know their own strength. PLoS ONE 3(1): e1412 doi:10.1371/journal.pone.0001412.

104. Moritz, R.F.A., Dietemann, V. & Crewe, R.M. 2008. Determining colony densities in wild honeybee populations (Apis mellifera) with linked microsatellite DNA markers. J. Insect. Conserv. 12: 455-459.

105. Strauss, K., Scharpenberg, H., Crewe, R.M., Glahn, F., Foth, H., & Moritz, R.F.A. 2008. The role of the queen mandibular gland pheromone in honeybees (Apis mellifera): honest signal or suppressive agent? Behav. Ecol. Sociobiol. 62: 1523-1531.

106. Ellis, M.B., Nicolson, S.W., Crewe, R.M. & Dietemann, V. 2008. Hygropreference and brood care in the honeybee (Apis mellifera scutellata). J. Insect Physiol. 54: 1516- 1521.

107. Jaffé, R.. Dietemann, V., Crewe, R.M. and Moritz, R.F.A. 2009. Temporal variation in the genetic structure of a drone congregation area: An insight into the population dynamics of wild African honeybees (Apis mellifera scutellata). Mol. Ecol. 18: 1511-1522.

108.   Dietemann,V.,   Pirk,   C.W.W.   and   Crewe,   R.M.   2009.   Is   there   a   need   for  conservation  of  honeybees  in  Africa?  Apidologie  40:  285-­‐295.  

109.   Jaffe,  R.,  Dietemann,  V.,  Allsopp,  M.H.,  Crewe,  R.M.,  Dall’Olio,  R.,  De  la  Rua,  P.,  El-­‐Niweiri,  M.A.A.,  Fries,  I.,  Meusel,  M.S.,  Paxton,  R.J.,  Shaibi,  T.,  Stolle,  E.  and  Moritz,   R.F.A.   2009.   Filling   the   gap   in   pollinator   decline   censuses:  measuring   the   density   of   honeybee   (Apis  mellifera)   colonies   across   their  natural  range.  Conservation  Biol.  24:  583-­‐593.).  

110.   Tan,   K.,   Yang,  M.,   Radloff,   S.,   Pirk,   C.W.W.,   Crewe,   R.M.,   Phiancharoen,  M.,  Hepburn,   R.   &   Oldroyd,   B.   2009.   Worker   reproduction   in   mixed-­‐species  colonies  of  honey  bees.  Behavioral  Ecology  20:  1106-­‐1110.  

111.   Sande,   S.O.,   Crewe,   R.M.,   Raina,   S.K.,   Nicolson,   S.W.   &   Gordon,   I.   2009.  Proximity   of   a   forest   leads   to   higher   honey   yield:   Another   reason   to  conserve.  Biological  Conservation  142:  2703-­‐2709.  

112.   Abdullahi  A.  Yusuf,  Christian  W.  W.  Pirk,  Robin  M.  Crewe,  Peter  G.  N.  Njagi,  Ian  Gordon.,  and  Baldwyn  Torto.  2010.  Nestmate  recognition  and  the  role  of  cuticular  hydrocarbons   in   the  African   termite  raiding  ant  Pachycondyla  analis.  J.  Chem.  Ecol.  36:  441-­‐448.  

113.   Metz,   B.N.,   Pankiw,   T.,   Tichy,   S.E.,   Aronstein,   K.A.   and   Crewe,   R.M.   2010.  Variation   in   and   responses   to   brood   pheromone   in   the   honey   bee   (Apis  mellifera    L.).  J.  Chem.  Ecol.  36:  432-­‐440.  

114.   Altaye,  S.Z.,  Pirk,  C.W.W.,  Crewe,  R.M.,  Nicolson,  S.W.  2010.  Convergence  of  carbohydrate-­‐biased   intake   targets   in   caged   worker   honeybees   fed  different  protein  sources.  J.  experimental  Biology  213:3311-­‐3318.  

115.   Zheng,   H.   Q.,   Dietemann,   V,   Crewe,   R.,   Hepburn,   R.,   Hu,   Fu   Liang,   Yang,  Mingxian,  Pirk,  C.  2010.  Pheromonal  predisposition  to  social  parasitism  in  the  honeybee  Apis  mellifera  capensis.  Behavioral  Ecology  21(6):  1221-­‐1226.  

116.   Strauss,  U.,  Human,  H.,  Crewe,  R.M.  &  Pirk,  C.W.W.  2010.  The  first  report  of  storage  mites,  Caloglyphus  hughesi  (Acaridae)  on  laboratory-­‐reared  Aethina  tumida   (Coleoptera:   Nitidulidae)   in   South   Africa.   African   Entomology   18:  379-­‐382.  

117.   Neumann,   P.,   Härtel,   S.,   Kryger,   P.,   Crewe,   R.M.,   and   Moritz,   R.F.A.   2011.  Reproductive  division  of  labour  and  thelytoky  result  in  sympatric  barriers  to  gene  flow  in  honeybees  (Apis  mellifera  L.)  J.  Evol.  Biol.  24:  286-­‐294.  

118.    Härtel,   S.,   Wossler,   T.C.,   Moltzer,   G.-­‐J.,   Crewe,   R.M.,   Moritz,   R.F.A.,   and  Neumann,   P.   2011   Pheromone   mediated   reproductive   dominance  hierarchies   among   pseudo-­‐clonal   honeybee   workers   (   Apis   mellifera  capensis).  Apidologie  42:  659-­‐668.    

119.   Jarosch,   A.,   Stolle,   E.,   Crewe,   R.M.   and   Moritz,   R.F.A.   2011.   Alternative  splicing   of   a   single   transcription   factor   drives   selfish   reproductive  behaviour  in  honeybee  workers  (Apis  mellifera).  PNAS  108:  15282-­‐15287.    

120.   Human,   H.,   Pirk,   C.W.W.,     Crewe,   R.M.   and   Dietemann,   V.   2011.   The  honeybee   disease   American   foulbrood   –   an   African   perspective.   African  Entomology  19:  551-­‐557.    

121.    Zheng,  H.-­‐Q.,  Dietemann,  V.,  Hu,  F.-­‐L.,  Crewe,  R.M.  and  Pirk,  C.W.W.  2012.  A  scientific  note  on  the  lack  of  effect  of  mandible  ablation  on  the  synthesis  of  the  royal  scent  by  honeybee  queens.  Apidologie  43:  471-­‐473.    

122.     Pirk,   C.W.W.,   Lattorff,   H.M.G.,   Moritz,   R.F.A.,   Sole,   C.L.,   Radloff,   S.E.,  Neumann,  P.,  Hepburn,  H.R.  and  Crewe,  R.M.  2012.  Reproductive  biology  of  the  Cape  honeybee:   a   critique   of  Beekman   et   al.   Journal   of  Heredity   103:  612-­‐614.    

123.      Heinze,  J.,    Aumeier,  V.,  Bodenstein,  B.,  Crewe,  R.M.  and  Schrempf,  A.  2013.    Wingless  and  intermorphic  males  in  the  ant  Cardiocondyla  venustula.  Insectes  Sociaux  60:  43-­‐48.  DOI  10.1007/s00040-­‐012-­‐0263-­‐5.    

 124.     Yusuf,   A.A.,   Crewe,   R.M.   and   Pirk,   C.W.W.   2013.   An   effective  method   for  

maintaining   the   African   termite   raiding   ant,   Pachycondyla   analis   in   the  laboratory.  African  Entomology  21:  132-­‐136.    

125. Yusuf, A.A., Crewe, R.M. and Pirk, C.W.W. 2014. Olfactory detection of prey by the termite raiding ant, Pachycondyla analis. Journal of Insect Science 14(53). Published April 2014: http://www.insectscience.org/14.53

126.   Yusuf,   A.A.,   Crewe,   R.M.   and   Pirk,   C.W.W.   2014.   Prey   choice   and   raiding  behaviour   of   the   ponerine   ant   Pachycondyla   analis   (Hymenoptyera:  Formicidae).  J.  Natural  History  48:345-­‐358.    

127.    Strauss,  U.,  Human,  H.,  Gauthier,  L.,  Crewe,  R.M.,  Dietemann,  V.,  Pirk,  C.W.W.  2013.  

Seasonal  prevalence  of  pathogens  and  parasites  in  the  savannah  honeybee  (Apis  mellifera                  scutellata).  Journal  of  Invertebrate  Pathology  114:  45-­‐52.    

128.    Strauss,  U.,  Pirk,  C.W.W.,  Dietemann,  V.,  Crewe,  R.M.  and  Human,  H.  (2014)  Infestation    rates  of  Varroa  destructor  and  Braula  coeca  in  the  savannah  honeybee  (Apis  mellifera  scutellata).  J.  apic.  Research  53(4):  475-­‐477.    

 129.  Pirk,  C.W.W.,  Human,  H.,  Crewe,  R.M.  and  vanEngelsdorp,  D.  (2014)  A  

survery  of  managed  honey  bee  colony  losses  in  the  Republic  of  South  Africa  –  2009  to  2011.  J.  apic.  Research  53:  35-­‐42.    

 130.    Strauss,  U.,  Pirk,  C.W.W.  Crewe,  R.M.,  Human,  H.,  Dietemann,  V.  (2014)  

Impact  of  Varroa  destructor  on  honey  bee  (Apis  mellifera  scutellata)  colony  development  in  South  Africa.  Experimental  and  Applied  Acarology  65:  89-­‐106.    

 131.    Yusuf,  A.  A.,  Pirck,  C.W.W.  and  Crewe,  R.M.  (2015)  Mandibular  gland  

pheromone  contents  in  workers  and  queens  of  Apis  mellifera  adansonii  (Latr.).  Apidologie    (In  press).    

         

Popular Articles- Public understanding of Science

Crewe, R.M. Honeybee languages: some of it's in the bouquet. S. Afr. Bee J. 50, 49 (1978).

Crewe, R.M. The Cape Honeybee: biological curiosity and priceless natural resource. African Wildlife 33, 38-39 (1979).

Crewe, R.M. Queens, false queens and capensis. S. Afr. Bee J. 53(6), 18-21 (1981).

Keetch, D.P., Crewe, R.M. and Paterson, H.E.H. Report on the Third Entomological Congress of the Entomological Society of Southern Africa. S. Afr. J. Sci. 77, 200-201 (1981).

Crewe, R.M. "Kin Selection in Crisis" Report on the IXth International Congress of the IUSSI held in Boulder, Colorado. S. Afr. J. Sci. 78: 440-442 (1982).

Crewe, R.M. Differences in behaviour and morphology between adansonii and capensis. S. Afr. Bee J. 56, 16-20 (1984).

Crewe, R.M. Natural resistance to Varroa in capensis. S. Afr. Bee J. 56, 86-87 (1984).

Crewe, R.M. Bees observed foraging on an impala carcass. Bee World 66: 8 (1985).

Hepburn, H.R. & Crewe, R.M. Geography of the Cape Honeybee based on laying worker performance. SA Bee J 63: 51-59 (1991).

Allsopp, M.H. & Crewe, R.M. 1993. The Cape honey bee as a Trojan horse rather than the hordes of Genghis Khan. American Bee J. 133: 121-123.

Crewe, R.M. & Allsopp, M.A. 1994. Sex and the single queen: recent experiments with capensis and scutellata queens. S.A. Bee J. 66, 58-62.

Crewe, R.M. From the drone cell. SA Bee J. 71: 44 (1999).

Crewe, R.M. From the drone cell – social parasites come like wolves in sheep’s clothing. SA Bee J. 72: 63-64 (2000).

Crewe, R.M. From the drone cell – Pheromonal battles between capensis workers for the chance to lay eggs. SA Bee J. 73: 151-152 (2001).

Crewe, R.M. From Pharaohs to the Killer Bee: the significance of African honeybees. SA Bee J. 73 (4): 185-199 (2001).

Kryger, P., Dietemann, V. & Crewe, R.M. Have we found a solution to the capensis problem? SA Bee J. 75(4): 123-128 (2003).

Lubbe, A., Dietemann, V. & Crewe, R.M. The effect of migratory beekeeping practices on the persistence of the parasitic Capensis honeybee in South Africa. SA Bee J. 78(3): 66-68 (2006).

Crewe, R.M. African origin of honeybees - what the honeybee genome project has revealed. SA Bee J. 79(3&4): 70-75 (2007).

Pirk, C. & Crewe R. Is the honeybee death syndrome a threat to the world? Vision: Business, Ecotourism and the Environment. Endangered Wildlife Trust, Future Publishing (Pty) Ltd, Rivonia, South Africa. pp 68-71 (2007).

Zheng, H.Q., Pirk, C.W.W., Crewe, R.M. and Hu, F.L. Beekeeping in China. SA Bee J. 80: 101-105 (2008).

Human, H., Crewe, R.M. and Pirk, C.W.W. (2014) Honeybee colony losses in South Africa- feedback on the Questionnaires. South African Bee Journal 86 (2): 311-317

Book Reviews

Crewe, R.M. Review of "Insecticides of the Future". S. Afr. J. Sci. 72, 126 (1976).

Crewe, R.M. Review of "Experimental analysis of Insect Behaviour". S. Afr. J. Sci. 73, 62 (1977).

Crewe, R.M. Review of "The Insect Integument". S. Afr. J. Sci. 73, 316317 (1977).

Crewe, R.M. Review of Social odours in Mammals, Vol 1. Eds. R.E. Brown & D.W. MacDonald, Clarendon Press, Oxford 1985. S A J. Zool. 21, 278 (1986).

Crewe, R.M. "Hornbostel, Hunter and Beeswax" review of Honeybees and Wax: an experimental natural history by H.R. Hepburn. SpringerVerlag, Berlin. S.A. J. Sci. 83, 736 (1987).

Workshop Participation

Finding New Sources of Higher Education Funding. Coogee Beach, Australia. 14-16 March 1995.

Deans of Agricultural and Science Faculties in SADC Region Meeting. Arusha, Tanzania. April, 1996.

Measuring Behaviour ’96. International Workshop on Methods and Techniques in Behavioural Research. Utrecht, The Netherlands. 16-18 October 1996.

Chapters in Books

Crewe, R.M. Natural history of honey bee mandibular gland secretions: development of analytical techniques and the emergence of complexity. In Africanized Honey Bees and Bee Mites. Eds. G.R. Needham, R.E. Page, M. DelfinadoBaker & C.E. Bowman. Ellis Horwood, Chichester. pp. 149-158 (1988).

Velthuis, H.H.W., Ruttner, F. and Crewe, R.M. Differentiation in Reproductive Physiology and Behaviour during the Development of Laying Worker Honey Bees. In Social Insects: An Evolutionary Approach to Caste and Reproduction. Edited by W. Engels. Springer Verlag, Berlin. pp. 231-243 (1990).

Brückner, D. und R.Crewe (2001),Verbreitung der westlichen Honigbiene durch den Menschen, in: Natur und Kulturgeschichte der Honigbiene,eds. M.Lehnherr und

H.U.Thomas,Bd 5,Der Schweizerische Bienenvater,Fachschriftenverlag pp 13-18. VDRB.

Moritz, R.F.A. & Crewe, R.M. (2005) The interplay of intracolonial genotypic variation and self-organisation of dominance hierarchies in honeybees. In: Self-organisation and Evolution of Social Systems. Edited by C. Hemelrijk, Cambridge University Press, pp. 36-49.

Pirk, C.W.W., Sole, C.L. and Crewe, R.M. Pheromones. In Honeybees of Asia. Edited by R. Hepburn & S.E. Radloff, Springer Verlag, Berlin, pp. 207-214 (2011).

Published Conference Proceedings

Crewe, R.M. An examination of biochemical polymorphism in ants. Proc VII Congr. IUSSI, London. pp. 77-83 (1973).

Crewe, R.M. Pheromones and colonial defensive behaviour of Apis mellifera adansonii. Proc Apimondia International Congress on African Bees, Pretoria. pp. 77-83 (1977).

Crewe, R.M. Compositional variability, the key to the social signals produced by honeybee mandibular glands. In The Biology of Social Insects. Eds. M.D.Breed, C.D.Michener and H.E.Evans. Westview Press, Boulder, Colorado. pp. 318-322 (1982).

Keeping, M.G. and Crewe, R.M. The ontogeny and evolution of foundress associations in Belonogaster petiolata (Hymenoptera: Vespidae). In Chemistry and Biology of Social Insects eds. Eder & Rembold, Verlag J. Peperny, Munchen. pp 383-384 (1987).

Crewe, R.M. Lability of the mandibular gland signal of three races of African honey bees. In Chemistry and Biology of Social Insects eds. Eder & Rembold, Verlag J. Peperny, Munchen. pp 433-434 (1987).

Allsopp, M.H. and Crewe, R.M. Kin discrimination of brood and young workers in two races of African honeybees. In Chemistry and Biology of Social Insects eds. Eder & Rembold, Verlag J. Peperny, Munchen. pp 467-468 (1987).

Crewe, R.M., Wossler, T. and Allsopp, M.H. Intercaste or mosaic, the worker mandibular gland secretions of Cape honeybees (Apis mellifera capensis). In Social Insects and the Environment. Eds. G.K. Veeresh, B. Mallik & C.A. Viraktamath, Oxford & IBH Publishing Co., New Delhi. pp. 415-416 (1990).

Robertson, H.G., Crewe, R.M. and Zachariades, C. Unravelling the Camponotus fulvopilosus complex (Hymenoptera: Formicidae). In Social Insects and the Environment. Eds. G.K. Veeresh, B. Mallik & C.A. Viraktamath, Oxford & IBH Publishing Co., New Delhi. pp. 327-328 (1990).

Wossler, T.C. and Crewe, R.M. Deceit in chemical signaling by Apis mellifera capensis workers. Seventh IBRA Conference on Tropical Bees: Management and Diversity & Fifth Asian Apicultural Association Conference, Chiang Mai, Thailand. pp. 40 (2001).

Conference Contributions

Crewe, R.M. Patterning of pheromone messages. XVth International Congress of Entomology, Washington. (1976).

Crewe, R.M. Pheromones of African honeybees. Proc 2nd Ent. Congr. of ESSA, Pretoria. pp.4243 (1977).

Crewe, R.M. A novel method for the analysis of honeybee mandibular gland pheromones. Zoological Society of Southern Africa Symposium on Invertebrates, Potchefstroom. Indicator 12, 21 (1980).

Crewe, R.M. Social position and mandibular gland secretions in honeybees. Proc 3rd Ent. Congr. of ESSA, Pretoria. pp. 56 (1980).

Crewe, R.M. Adaptations of chemical signals to their environmental context. Zoological Society of Southern Africa Symposium on Environmental Physiology, Zoogeography and Speciation. Durban. p. 11 (1981).

Crewe, R.M. Pheromones as an essential preadaptation to the evolution of insect societies. Proc 4th Entomological Congress of the Entomological Society of Southern Africa p. 22 (1983).

Crewe, R.M. On the chemistry of queenness: the mandibular glands of the Cape honeybee, Apis mellifera capensis. XVII International Congress of Entomology, Abstract Volume p 473, Hamburg (1984).

Crewe, R.M. and M.R. Centner Use of fused silica capillary GCMS for the analysis of pheromones produced by individual insects. South African Mass Spectroscopy Congress (1984).

Crewe, R.M. Queenless eusocial states: are proletarian insect societies possible. Proc 5th Entomological Congress of the Entomological Society of Southern Africa. p 8 (1985).

Peeters, C.P., Crewe, R.M. & Zini, M. Modifications of social structure in ponerine ants. Symposium of the Zoological Society of southern Africa, Johannesburg, July 1986.

Crewe, R.M. Lability of the mandibular gland signal of three races of African honeybee. 10th International Congress IUSSI. Munich, August 1986.

Allsopp, M.A. & R.M. Crewe Kin discrimination of brood and young workers in two races of African honeybee. 10th International Congress IUSSI. Munich, August 1986.

Crewe, R.M. The chemical language of honeybees. Symposium of the Federation of South African Beekeeper's Associations. October 1986.

Sellars, S., Mar, T., Bertsch, W. and Crewe, R.M. Investigation of African Honeybee races by GC and GCMS. 8th International Symposium on Capillary Chromatography. Riva del Garda, Italy. May, 1987.

Crewe, R.M. Natural history of honey bee mandibular gland secretions: development of analytical techniques and the emergence of complexity. International Conference on Africanized Honey Bees and Bee Mites, Columbus, Ohio. March, 1987.

Crewe, R.M. and Moritz, R.F.A. Reaction of honeybee workers to volatile components of queen signals. Proc XVIII International Congress of Entomology, Vancouver, Canada. July, 1988. p. 231.

Crewe, R.M. Chairman of session: Function and Chemistry of Social Insect Exocrine Secretions, Tuesday Afternoon. Proc XVIII International Congress of Entomology, Vancouver, Canada. July, 1988.

Crewe, R.M. & Moritz, R.F.A. Chemical signals of queens in recognition systems of honeybees. 7th Congress, Entomological Society of southern Africa. Pietermaritzburg, July 1989.

Crewe, R.M. Chairman of Workshop: Social Insects. 7th Congress, Entomological Society of southern Africa. Pietermaritzburg, July 1989.

Crewe, R.M. Reproductive strategies in ponerine ants: alternative eusocial structures with laying workers. 21st International Ethological Conference, Utrecht, The Netherlands, August 1989.

Crewe, R.M., Wossler, T. & Allsopp, M.H. Workers in queens clothing: why capensis workers become pseudoqueens. S.A. Federation of Beekeepers Associations, Bee Symposium, Stellenbosch, January 1990.

Crewe, R.M., Robertson, H., Brand, J.M. and Nel, M. Pheromonal differences between ant species of the Camponotus detritus group. International Symposium on the Influence of Water Availability and Water movement in Animal Ecology: Terrestrial and Aquatic Systems, Zoological Society of Southern Africa, Port Elizabeth, July 1990.

Crewe, R.M., Moritz, R.F.A. & Kirchner, W.H. Chemical camouflage of the death's head hawkmoth (Acherontia atropos L) in honeybee colonies. Proc 8th Entomological Congress of the Entomological Society of southern Africa. p. 26. Bloemfontein, July 1991.

Crewe, R.M. Chairman: Paper Session on 4 July 1991. 8th Entomological Congress of the Entomological Society of southern Africa. Bloemfontein, July 1991.

Crewe, R.M. Chairman: Workshop on "Social Insects and Insect Behaviour". 8th Entomological Congress of the Entomological Society of southern Africa. Bloemfontein, July 1991.

Crewe, R.M. & Moritz, R.F.A. Volatile chemicals produced by honey bee queens. Symposium Animals in their Changing World Zoological Society of Southern Africa. Stellenbosch, July 1991.

Crewe, R.M. & Hepburn, H.R. Defining populations of honeybees: coexistence of the Cape bee with the African bee. 1st European Congress Social Insects, IUSSI. Leuven, August 1991.

Crewe, R.M. Chairman: Session 6. 1st European Congress Social Insects, IUSSI. Leuven, August 1991.

Crewe, R.M. Distribution of southern African races of honeybees. 3rd Annual Meeting of Biosystematics Interest Group, Entomological Society of southern Africa, May 1992.

Crewe, R.M. Is behavioural differentiation of honeybee races supported by the analysis morphological characters? Ethology Group Meeting, Zoological Society of Southern Africa, January 1992.

Crewe, R.M. & Hawkes, P.G. Bouquets and blends: analysis of behavioural and physiological responses to exocrine secretions of Camponotus. Proc XIX International Congress of Entomology, Beijing, China, June 28 - July 4, 1992. p. 228.

Crewe, R.M. 1993. Chemical and morphological differentiation of southern African honeybee races. Proceedings of the Ninth Entomological Congress, Johannesburg, 28 June-1 July 1993: 17.

Crewe, R.M. 1993. Sampling of honeybee populations for chemosystematic analysis of pheromones. 10th Annual Meeting of the International Society of Chemical Ecology, Clearwater Beach, Florida, 31 July - 4 August 1993: 42.

Crewe, R.M. 1993. The Cape honey bee problem. (Invited presentation). Annual Conference: Eastern Apicultural Society, Orono, Maine, August 2- 6, 1993.

Caetano, F.H., Jaffe, K. & Crewe, R.M. The digestive tract of the Catalaucus ants: presence of the microorganisms in the ileum. Proceedings 12th Congress of the International Union for the Study of Social Insects, Paris, 21-27 August 1994, p 391.

Crewe, R.M. 1994. Differentiation of chemical signals in populations of African honey bees. Proceedings 12th Congress of the International Union for the Study of Social Insects, Paris, 21-27 August 1994, p 206.

Crewe, R.M. 1994. Biodiversity of bees and ants in southern Africa: a study of two examples, honey bees (Apis mellifera) and formicine ants (Camponotus spp.). Invited contribution to 3rd International Conference of Tropical Entomology, Nairobi, 30 October - 4 November 1994.

Kirchner, W. & Crewe, R.M. 1994. Introduction to symposium “Communication in honeybees”. Proceedings 12th Congress of the International Union for the Study of Social Insects, Paris, 21-27 August 1994, p 202. Joint co-organisers.

Sledge, M.F. & Crewe, R. M. 1994. Division of labour in the absence of the ergatoid queen in Plectroctena mandibularis (Hymenoptera: Formicidae: Ponerinae). Proceedings 12th Congress of the International Union for the Study of Social Insects, Paris, 21-27 August 1994, p 62.

Crewe, R.M., Allsopp, M.H. & Basford, P. 1995. Use of flow cytometry to determine the sex of eggs laid by honey bee queens and workers (Hymenoptera: Apidae). Proceedings of 10th Entomological Congress, Entomological Society of Southern Africa. Grahamstown, 3-7 July 1995. p. 38.

Keeping, M.G., Crewe, R.M. & Kojima, J. 1995. Ant-repellent allomones of four genera of independent-founding paper wasps (Hymenoptera: Vespidae). Proceedings of 10th Entomological Congress, Entomological Society of Southern Africa. Grahamstown, 3-7 July 1995. p. 78.

Crewe, R.M. & Manson, T. 1995. Responses of African worker honey bees to a synthetic mixture and natural extracts of mandibular gland pheromone. Abstracts of the Zoological Society of South Africa Symposium. Grahamstown, 27-30 June 1995. P. 174.

Crewe, R.M. 1995. Southern African populations of Apis mellifera: their characterisation and interactions. 34th International Apicultural Congress of Apimondia. Lausanne, 15-19 August 1995.

Crewe, R.M., Allsopp, M.H. & Magnuson, P. 1995. Co-organisers of First International Electronic Conference on the Cape Bee problem in South Africa. 5-30 June 1995.

Crewe, R.M. 1995. Invasive properties of honeybees. Apis Africa - Bee Symposium of South African Federation of Bee-farmers’ Associations. Germiston, 3-4 November 1995.

Crewe, R.M. 1995. Pheromone chemistry and sexing of eggs: tools for studying laying workers. Apis Africa - Bee Symposium of South African Federation of Bee-farmers’ Associations. Germiston, 3-4 November 1995.

Crewe, R.M. & Manson, T. 1995 Responses of African honey bees to a synthetic mixture and extracts of mandibular gland pheromone. Entomological Society of America National Conference. Las Vegas, 18-21 December 1995.

Crewe, R.M. 1996. The world view of the natural sciences. South African Science and Religion Forum ’96. Pretoria, 30-31 May 1996.

Hodin,J. Riddiford, L.M., Allsopp, M.H. and Crewe, R.M. The developmental basis of reproductive differences in two South African races of the honeybee Apis mellifera (Hymenoptera: Apidae). Meeting of the Western Society of Naturalists. 1996.

Duncan, F.D. and Crewe, R.M. Colony social organisation, foraging costs and ponerine ant foraging strategy. Proc. XX International Congress of Entomology, Firenze, August 1996, p. 406.

Bögemann, U., Moritz, R.F.A., Crewe, R. and Allsopp, M. The role of 9-ODA [(E)-9-ketodec-2-enoic acid] for worker dominance hierarchies in Apis mellifera capensis. Proc. XX International Congress of Entomology, Firenze, August 1996, p. 416.

Bennett, L.N. and Crewe, R.M. Nest and nestmate recognition cues in Allodape rufogaster (Hymenoptera: Anthophoridae)(Poster). In Insects in African Economy

and Environment. Proc. Joint Congr. Ent. Soc. Southern Afr. and Afr. Assoc. Insect Sci., Stellenbosch, 30 June -4 July 1997, p. 220.

Crewe, R.M. Covenor and Chairperson: Capensis symposium. 35th International Apicultural Congress of Apimondia. Antwerp, 1-6 September 1997.

Crewe, R.M. Introduction to the biology of capensis. Capensis symposium. 35th International Apicultural Congress of Apimondia. Antwerp, 1-6 September 1997.

Crewe, R.M. Plenary address - Reproduction in queenless colonies of ants and bees: regulation and social parasitism. 16th Meeting of the German Section of the International Union for the Study of Social Insects, Graz, 17-21 August 1997.

Simon, U., Crewe, R., Moritz, R.F.A. & Allsopp, M. The establshiment of pheromone signals in small social units of Apis mellifera capensis. 16th Meeting of the German Section of the International Union for the Study of Social Insects, Graz, 17-21 August 1997, p. 86

Brockmann, A., Brückner, D. & Crewe, R.M. Electroantennogram studies in drone and worker honeybees of queen olfactory signals. Gött. Neurobiological Conferences 1998. Eds. N. Elsner & R. Wehner. 26-29 March 1998.

Crewe, R.M. Do primer pheromones exist? The responses of subordinates to the signals of dominants. Proc. XIII International Congress of IUSSI, Adelaide 29 December 1998 – 3 January 1999. p 117.

Silberbauer, L.X. & Crewe, R.M. Social organisation, competition and pheromones in colonies of Halterapis nigrinervis, a primitive allodapine bee (Apidae: Allodapini). Proc. XIII International Congress of IUSSI, Adelaide 29 December 1998 – 3 January 1999. p 440.

Simon, U.U., Moritz, R.F.A. & Crewe, R.M. Reproductive dominance in experimental groups of Apis mellifera capensis (Esch.). Proc. XIII International Congress of IUSSI, Adelaide 29 December 1998 – 3 January 1999. p 444.

Wossler, T.C. & Crewe, R.M. The effects of queen tergal gland secretions on the honeybee worker caste. Proc. XIII International Congress of IUSSI, Adelaide 29 December 1998 – 3 January 1999. p 444.

Peeters, C., Crewe, R.M. & Pezon, A. Régulation de la reproduction chez la fourmi sans reine Streblognathus. Annual Meeting of the French and British Sections of IUSSI, Tours, 1-3 September 1999.

Wossler, T.C. & Crewe, R.M. Are honeybee queen tergal glands secretions attractive to workers? Proc. 12th Entomological Congress of the Entomological Society of southern Africa, Potchefstroom, 12-15 July 1999. p. 141.

Crewe, R.M. Interactions between races: the Africanized bees in the Americas and the Cape bees in South Africa. In Plenary Session: Risks of World Wide Movement in Bees and Bee Products. Proc. XXXVI Congr, Apimondia, Vancouver, 12-17 September 1999, p. 107.

Peeters, C. & Crewe, R. Olfactory recognition of dominance and ovarian status in a ponerine ant with reproductively totipotent workers. 16th Annual Meeting, International Society of Chemical Ecology, Marseille, France. 13-17 November 1999.

Wossler, T.C. & Crewe,R.M. Deceit in chemical signaling by Apis mellifera capensis workers. Seventh IBRA Conference on Tropical Bees: Management and Diversity & Fifth Asian Apicultural Association Conference. Chiang Mai, Thailand. p 40. 19-25 March, 2000.

Crewe, R.M. Pheromonal contests in worker honeybees. Chromatography Mass-Spectrometry 2000, Warmbaths, South Africa. 16-18 October 2000.

Crewe, R.M. Worker reproductive strategies in ants and honeybees. Proc. 13th Entomological Congress, Entomological Society of southern Africa, 2-5 July 2001,Pietermaritzburg. p 14.

De Oliveira, J.M.M., Crewe, R.M. & Wossler, T.C. Control of worker reproduction in the queenless ant Streblognathus aethiopicus Smith. Proc. 13th Entomological Congress, Entomological Society of southern Africa, 2-5 July 2001,Pietermaritzburg. p 16.

Sole, C.L., Kryger, P. Crewe, R.M. & Hefetz, A. Age-specific Dufours gland secretion in African honey bee workers Apis mellifera scutellata Lepeletier and in the Apis mellifera capensis Escholtz pseudo-clone. Proc. 13th Entomological Congress, Entomological Society of southern Africa, 2-5 July 2001,Pietermaritzburg. p 61.

Masemene, M.M., Rhower, E., Crewe, R.M. & Wossler, T.C. Analysis of the mandibular gland secretions of honeybee queens using the SPME technique. Proc. 13th Entomological Congress, Entomological Society of southern Africa, 2-5 July 2001,Pietermaritzburg. p 95.

Crewe, R.M. & Moritz, R.F.A. Analysis of honeybee mandibular gland pheromones using silicone tubing. 18th Annual Meeting, International Society of Chemical Ecology, 7-12 July, 2001 Lake Tahoe, U.S.A. p. 83.

Crewe,R.M. Pheromone variability and function in honeybees. (Invited presentation) Proceedings of the meeting of the European Sections of IUSSI, Berlin, 25-29 September 2001. p. 70.

Kryger, P., Reece, S.L., Crewe, R.M., & Omholt, S.W. The impact of Varroa destructor on African honey bee populations. Proceedings of the meeting of the European Sections of IUSSI, Berlin, 25-29 September 2001. p. 232.

Wossler, T.C., Crewe, R.M., Martin, S. & Beekman, M. Dishonesty in the bee hive. Proceedings of the meeting of the European Sections of IUSSI, Berlin, 25-29 September 2001. p 212.

Crewe, R.M. Keynote Address: From Pharaohs to the killer bee: the significance of African honeybees. 37th International Apicultural Congress, APIMONDIA, Durban, 28 October – 1 November 2001.

Crewe, R.M. & Moritz, R.F.A. Analysis of honeybee pheromones during an individual’s life span. 37th International Apicultural Congress, APIMONDIA, Durban, 28 October – 1 November 2001. p. 110.

Wossler, T.C., Crewe, R.M., Martin, S. & Beekman, M. Pheromone deceit by delinquent honeybee workers leads to reproductive anarchy. 37th International Apicultural Congress, APIMONDIA, Durban, 28 October – 1 November 2001. p. 110.

Wossler, T.C., Crewe, R.M, Oldroyd, B.P. and Ratnieks, F.L.W. 2002. Reproductive anarchy in the beehive: the role of pheromones. XIV International Congress of the International Union for the Study of Social Insects, Sapporo, Japan. pp 213.

Crewe, R.M. & Moritz, R.F.A. Semiochemical contests that determine reproductive regulation in honeybees, Apis mellifera. XIV International Congress of IUSSI: The Golden Jubilee. Sapporo, Japan. 27 July – 3 August 2002. p. 10.

Lattorff, M., Moritz, R.F.A. & Crewe, R.M. Genes and reproductive dominance in honeybee workers (Apis mellifera). XIV International Congress of IUSSI: The Golden Jubilee. Sapporo, Japan. 27 July – 3 August 2002. p. 65.

Crewe, R.M. Opening Keynote Address. Factors affecting Cape Honey bee invasion of colonies of African savanna bees. Anais do V Encontro Sobre Abelhas, Ribeirão Preto, Brazil. 4-7 September 2002. pp. 2-3.

Crewe, R.M. Queen mimicry and worker reproduction in the Cape honey bee: a threat to beekeeping? Anais do V Encontro Sobre Abelhas, Ribeirão Preto, Brazil. 4-7 September 2002. pp. 66-67.

Crewe, R.M. & Moritz, R.F.A. Genotypic variability and dominance hierarchies in honeybees. Proc. 14th Entomological Congress, Entomological Society of southern Africa. 6-9 July 2003. p. 18.

De Oliveira, J.M.M., Crewe, R.M. & Wossler, T.C. Mandibular and Dufour’s gland secretion composition and the possible effects on behaviour and reproductive regulation in the queenless ant Streblognathus peetersi (Hymenoptera: Formicidae). Proc. 14th Entomological Congress, Entomological Society of southern Africa. 6-9 July 2003. p. 20.

Kryger, P., Crewe, R.M., Omholt, S.W. & Solignac, M. Honeybee density and dispersal in the Kruger National Park, South Africa. Proc. 14th Entomological Congress, Entomological Society of southern Africa. 6-9 July 2003. p. 47.

Härtel, S., Neumann, P., Dietemann, V., Crewe, R.M. & Moritz, R.F.A. Evolutionary processes facilitate the invasive success of social parastic honeybees (Apis mellifera capensis Esch.). Verhandlungen der Gesellschaft für Ökologie, Band 33, Biodiversity- from patterns to processes, Halle/Saale 8-12 September 2003. p 143.

Kryger, P. & Crewe, R.M. Movement of Apis mellifera capensis pseudoclone workers into wild colonies of A. m. scutellata in the Kruger National Park and its implications for rural beekeepers. Verhandlungen der Gesellschaft für Ökologie, Band 33, Biodiversity- from patterns to processes, Halle/Saale 8-12 September 2003. p 287.

Pflugfelder, J. Koeniger, N. & Crewe, R.M. Chemical releasers of queen fighting in Apis mellifera L. Meeting German Section IUSSI, Regensberg, 14-18 September 2003.

Härtel, S., Neumann, P., Dietemann, V. & Crewe, R.M. Social parasitism Meeting German Section IUSSI, Regensberg, 14-18 September 2003. and the evolution of pheromonal dominance in Cape honeybee workers, Apis mellifera capensis (Esch.). Meeting German Section IUSSI, Regensberg, 14-18 September 2003.

Crewe, R.M. (Plenary address) Social parasitism, lotteries and worker reproduction in honey bees. First joint Conference of the Arbeitsgemeinschaft der Institute für Bienenforschung and the German Speaking Section of the International Union for the Study of Social Insects, March 14-18, 2005, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, Germany. In: Bees, Ants and Termites: Applied and Fundamental Research, Eds. Kaatz, H.H., Becher, M. & Moritz, R.F.A. pp. 110.

Härtel, S. Neumann, P., Kryger, P., Wossler, T.C., Moritz, R.F.A. & Crewe, R.M. Worker based pathway to Emery’s rule in honeybees (Apis mellifera capensis Esch.). First joint Conference of the Arbeitsgemeinschaft der Institute für Bienenforschung and the German Speaking Section of the International Union for the Study of Social Insects, March 14-18, 2005, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, Germany. In: Bees, Ants and Termites: Applied and Fundamental Research, Eds. Kaatz, H.H., Becher, M. & Moritz, R.F.A. pp. 114.

Scharpenberg, H., Crewe, R.M., & Moritz, R.F.A. Effects of group size on social hierarchies in queenless honeybee workers. First joint Conference of the Arbeitsgemeinschaft der Institute für Bienenforschung and the German Speaking Section of the International Union for the Study of Social Insects, March 14-18, 2005, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale, Germany. In: Bees, Ants and Termites: Applied and Fundamental Research, Eds. Kaatz, H.H., Becher, M. & Moritz, R.F.A. pp. 136.

Dietemann, V. & Crewe, R. Queen pheromones in social insects: control or signal? Proc. 15th Entomological Congress, Entomological Soceity of southern Africa, Grahamstown, 10-13th July, 2005. p 18.

Lattorff, H.M.G., Moritz, R.F.A. & Crewe, R.M. Selfish gene regulates traits of parasitic honeybee workers. Proc. 15th Entomological Congress, Entomological Society of southern Africa, Grahamstown, 10-13th July, 2005. p 47.

Lubbe, A. Dietemann, V. & Crewe, R.M. Human agency in the selection of a pseudoclone in honeybee colonies. Proc. 15th Entomological Congress, Entomological Soceity of southern Africa, Grahamstown, 10-13th July, 2005. p 48.

Crewe, R.M. & Moritz, R.F.A. Chemical basis of social parasitism in Cape honeybees. In Insects, Nature and Humans, Proc. 5th Asia-Pacific Congress of Entomology, Jeju, Korea, 18-21 October 2005. p 41.

Lattorff, H.M.G., Moritz, R.F.A., Solignac, M., & Crewe, R.M. Selfish worker reproduction driven by a pleiotropic gene. Proc. XV Congress, IUSSI, Washington, DC. 30 July-4 August 2006. p 74.

Crewe, R.M., Neumann, P., & Moritz, R.F.A. Evolving relationships: intraspecific social parasitism in social insects. Proc. XV Congress, IUSSI, Washington, DC. 30 July-4 August 2006. p 95.

Dietemann, V., Pflugfelder, J., Härtel, S., Neumann, P., & Crewe, R.M. Pheromonal regulation of reproduction in honeybees (Apis mellifera): how social parasitism can provide fresh insights. Proc. XV Congress, IUSSI, Washington, DC. 30 July-4 August 2006. p 135.

Pirk, C.W.W., Neumann, P., Hepburn, H.R., & Crewe, R.M. What is triggering egg removal in honeybees: group or kin selection. Proc. XV Congress, IUSSI, Washington, DC. 30 July-4 August 2006. p 159.

Härtel, S., Neumann, P., Wossler, T.C., Crewe, R.M. & Moritz, R.F.A. Evolution of intraspecific social parasitism by honeybee workers (Apis mellifera capensis Esch.). Proc. XV Congress, IUSSI, Washington, DC. 30 July-4 August 2006. p 269.

Crewe, R.M. The Honeybee Genome: understanding the capensis clone and the origin of honeybees in Africa. BEECON 2007: 100 years of beekeeping. Broederstroom, South Africa, 6-9 June 2007.

Crewe, R.M. Alternative forms of reproductive regulation in honeybees: semiochemical contests vs physical contests. 4th Asia-Pacific Conference on Chemical Ecology will be held in Tsukuba, Japan, 10th -14th September 2007.

Sasagawa, H. & Crewe, R.M. Conveners of Symposium Session B: Sociobiology and Human.

4th Asia-Pacific Conference on Chemical Ecology will be held in Tsukuba, Japan, 10th -14th September 2007.

Pirk, C.W.W. & Crewe, R.M. Polygynous honeybee colonies: shared reproduction in normally monogynous species. Proc. 16th Entomological Congress, Entomological Society of southern Africa, Stellenbosch, 5-7th July, 2009. p 60.

Strauss, U., Pirk, C.W.W., & Crewe, R.M. mating behaviour in the small hive beetle, Aethina tumida. Proc. 16th Entomological Congress, Entomological Society of southern Africa, Stellenbosch, 5-7th July, 2009. p 70.

Zewdu, S., Nicolson, S., Crewe, R.M. & Pirk, C. A healthy lifestyle: how honeybees balance their diet. Proc. 16th Entomological Congress, Entomological Society of southern Africa, Stellenbosch, 5-7th July, 2009. p 83.

Zheng,  H-­‐Q;  Jin,  S-­‐H;  Pirk,  C.W.W.;  Dietemann,  V;  Crewe,  R;  Hu,  F  L.  Ten  years  of  beekeeping   with   multiple-­‐queen   colonies   in   China.   In   Proceedings   of   41st  International  Apicultural  Congress,  Montpellier,  France,  15-­‐20  September  2009.  p135.  

Pirk,  C.W.W.,  Zheng,    H.-­‐Q.,  Hu.  F.-­‐L.  &  Crewe,  R.M.  The  pre-­‐adaptations  of  a  social  parasite  –pheromones  of  the  Cape  honeybee  (Apis  mellifera  capensis).  Proc.  XVII  Entomological  Congress,  Entomological  Society  of  southern  Africa,  Bloemfontein,  

3-­‐6th  July,  2011.  p  137.  

Strauss,  U.,  Human,  H.,  Dietemann,  V.,  Crewe,  R.M.  &  Pirk,  C.W.W.  Enemies  of  the  hive:   Prevalence   of   Varroa   destructor   and   various   diseases   in   Apis   mellifera  scutellata   in   South   Africa.   Proc.   XVII   Entomological   Congress,   Entomological  Society  of  southern  Africa,  Bloemfontein,  3-­‐6th  July,  2011.  p  159.  

Yusuf,  A.A.,  Crewe,  R.M.,  Torto,  B.  &  Pirk,  C.W.W.  Caste  determines  production  of  volatiles   in   the   African   termite   raiding   ant  Pachycondyla  analis   (Hymenoptera:  Formicidae).   Proc.   XVII   Entomological   Congress,   Entomological   Society   of  southern  Africa,  Bloemfontein,  3-­‐6th  July,  2011.  p  185.    

Crewe,   R.   Invited   lecture.   The   Scent   of   social   parasitism   in   Cape   honeybees.  Proc.  27th  Meeting  of  the  International  Society  of  Chemical  Ecology,  Vancouver,  Canada,  24-­‐28  July  2011,  p  48.    

Crewe,   R.,   &   Moritz,   R.   Honey   bee   colony   densities   and   losses:   pollinator  availability   in   the   future.   5th   Annual   Diamond   Route   Research   Conference,  Johannesburg,  South  Africa,  21-­‐22  October  2014.    

Crewe,   R.   Invited   Plenary   Lecture.  Wild   and  managed   honey   bees   in   Africa,  impact   on   colony   health.   13th   International   Symposium   ‘Prospects   for   the   3rd  Millennium  Agriculture’,  Cluj-­‐Napoca,  Romania,  25-­‐27th  September  2014.    

Crewe,  R.  Discussant  and  Chair  of  session  on  ‘The  Smart  Villages  Initiative’.  Tenth  Annual  Meeting  of  the  African  Science  Academies  (AMASA  10).  Kampala,  Uganda,  10-­‐13th  November  2014.    

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