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Heg, Dik; Bergmüller, Ralph; Bonfils, Danielle; Otti, Oliver; Bachar, Zina; Burri, Reto; Heckel, Gerald; Taborsky, Michael (2006). Cichlids do not adjust reproductive skew to the availability of independent breeding options. Behavioral Ecology, 17(3), pp. 419-429. New York, N.Y.: Oxford University Press 10.1093/beheco/arj056
Bender, Nicole; Heg, Dik; Hamilton, Ian; Bachar, Zina; Taborsky, Michael; Oliveira, Rui (2006). The relationship between social status, behaviour, growth and steroids in male helpers and breeders of a cooperatively breeding cichlid. Hormones and behavior, 50(2), pp. 173-182. San Diego, Calif.: Elsevier 10.1016/j.yhbeh.2006.02.009
Heg, Dik; Bachar, Zina (2006). Cooperative breeding in the Lake Tanganyika cichlid Julidochromis ornatus. Environmental biology of fishes, 76(2-4), pp. 265-281. Dordrecht: Kluwer Academic Publishers 10.1007/s10641-006-9032-5
