摘要: Biased sex ratios are expected to affect the conditions of evolution worker behaviour in malehaploid populations. In a subsocial, species an association female-biased brood favours behaviour. There various reasons expect such association. The critical efficiency threshold required for evolve is lower when looked at from viewpoint mother than that daughter. this mother-daughter conflict, can some help her other offspring resolve conflict favour. semisocial ratio biases have less significant role and more easily diploid Furthermore, limited dispersal (due risks attached it) favour but inbreeding addition genetic mechanisms determine threshold, it essential pay attention those ecological factors actual nature. Several exist not easy associate them with common occurrence eusocial Hymenoptera.