Alberts, S. C.: Magnitude and sources of variation in male reproductive performance, in: The Evolution of Primate Societies, edited by: Mitani, J. C., Call, J., Kappeler, P. M., Palombit, R. A., and Silk, J. B., Chicago University Press, Chicago, USA, 412–431, 2012.
Bissonnette, A., de Vries, H., and van Schaik, C. P.: Coalitions in male Barbary macaques, Macaca sylvanus: strength, success and rules of thumb, Anim. Behav., 78, 329–335, 2009b.
Bissonnette, A., Bischofberger, N., and van Schaik, C. P.: Mating skew in Barbary macaque males: the role of female mating synchrony, female behavior, and male-male coalitions, Behav. Ecol. Sociobiol., 65, 176–182, 2011.
Bissonnette, A., Franz, M., Schülke, O., and Ostner, J.: Socioecology, but not cognition, predicts male coalitions across primates, Behav. Ecol., 25, 794–801, https://doi.org/10.1093/beheco/aru054, 2014.
Bissonnette, A., Perry, S., Barrett, L., Mitani, J. C., Flinn, M., Gavrilets, S., and de Waal, F. B.: Coalitions in theory and reality: a review of pertinent variables and processes, Behaviour, 152, 1–56, 2015.
de Turckheim, G. and Merz, E.: Breeding Barbary macaques in outdoor open enclosures, in: The Barbary Macaque: A case study in conservation, edited by: Fa, J. E., Plenum Press, New York, USA, 241–261, 1984.
de Villiers, M. S., Richardson, P. R., and Van Jaarsveld, A. S.: Patterns of coalition formation and spatial association in a social carnivore, the African wild dog (
Lycaon pictus), J. Zool., 260, 377–389, 2003.
Dubuc, C., Muniz, L., Heistermann, M., Engelhardt, A., and Widdig, A.: Testing the priority-of-access model in a seasonally breeding primate species, Behav. Ecol. Sociobiol., 65, 1615–1627, 2011.
Grinnell, J.: Modes of cooperation during territorial defense by African lions, Hum. Nature, 13, 85–104, 2002.
Hothorn, T., Hornik, K., van de Wiel, M. A., and Zeileis, A.: Implementing a class of permutation tests: The coin package, J. Stat. Softw., 28, 1–23, https://doi.org/10.18637/jss.v028.i08, 2008.
IUCN: Red List of Threatened Species, Version 2015-4, available at: http://www.iucnredlist.org, last access: 14 July 2016.
Krützen, M., Sherwin, W. B., Connor, R. C., Barré, L. M., Van de Casteele, T., Mann, J., and Brooks, R.: Contrasting relatedness patterns in bottlenose dolphins (
Tursiops sp.) with different alliance strategies, P. Roy. Soc. Lond. B. Bio., 270, 497–502, 2003.
Mitani, J. C., Watts, D. P., Pepper, J. W., and Merriwether, D. A.: Demographic and social constraints on male chimpanzee behaviour, Anim. Behav., 64, 727–737, 2002.
Noë, R.: Alliance formation among male baboons: shopping for profitable partners, in: Coalitions and alliances in humans and other animals, edited by: Harcourt, A. and de Waal, F., Oxford University Press, Oxford, UK, 285–322, 1992.
Noë, R.: A model of coalition formation among male baboons with lighting ability as the crucial parameter, Anim. Behav., 47, 211–213, 1994.
Packer, C. and Pusey, A. E.: Cooperation and competition within coalitions of male lions: kin selection or game theory?, Nature, 296, 740–742, 1982.
Preuschoft, S. and Paul, A.: Dominance, egalitarianism, and stalemate: An experimental approach to male-male competition in Barbary macaques, in: Primate males: Causes and consequences of variation in group composition, edited by: Kappeler, P. M., Cambridge University Press, Cambridge, UK, 205–216, 2000.
R Core Team: R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria, available at: http://www.R-project.org/ (last access: 23 June 2016), 2014.
Schülke, O., Bhagavatula, J., Vigilant, L., and Ostner, J.: Social bonds enhance reproductive success in male macaques, Curr. Biol., 20, 2207–2210, 2010.
Setchell, J.: Alternative reproductive tactics in primates, in: Alternative reproductive tactics: an integrative approach, edited by: Oliveira, R. F., Taborsky, M., and Brockmann H. J., Cambridge University Press, Cambridge, UK, 373–398, 2008.
Silk, J. B.: The patterning of intervention among male bonnet macaques: reciprocity, revenge, and loyalty, Curr. Anthropol., 33, 318–325, 1992.
Smith, J. E., Van Horn, R. C., Powning, K. S., Cole, A. R., Graham, K. E., Memenis, S. K., and Holekamp, K. E.: Evolutionary forces favoring intragroup coalitions among spotted hyenas and other animals, Behav. Ecol., 21, 284–303, 2010.
Smuts, B. B.: Sex and friendships in baboons, Aldine Publishing, New York, USA, 1985.
Smuts, B. B. and Watanabe, J. M.: Social relationships and ritualized greetings in adult male baboons (
Papio cynocephalus anubis), Int. J. Primatol., 11, 147–172, 1990.
Van Schaik, C. P., Pandit, S. A., and Vogel, E. R.: Toward a general model for male-male coalitions in primate groups, in: Cooperation in primates and humans, edited by: Kappeler, P. M. and van Schaik, C. P., Springer-Verlag, Berlin, Heidelberg, Germany, 151–171, 2006.
Wittig, R. M. and Boesch, C.: Food competition and linear dominance hierarchy among female chimpanzees of the Tai National Park, Int. J. Primatol., 24, 847–867, 2003.
Young, C., Hähndel, S., Majolo, B., Schülke, O., and Ostner, J.: Male coalitions and female behaviour affect male mating success independent of dominance rank and female receptive synchrony in wild Barbary macaques, Behav. Ecol. Sociobiol., 67, 1665–1677, 2013.
Young, C., Majolo, B., Schülke, O., and Ostner, J.: How males form coalitions against group rivals and the Pandit/van Schaik coalition model, Behaviour, 151, 907–934, 2014a.
Young, C., Majolo, B., Schülke, O., and Ostner, J.: Male social bonds and rank predict supporter selection in cooperative aggression in wild Barbary macaques, Anim. Behav., 95, 23–32, 2014b.
