For example in Ghana, where a woman shouldn't participate in a ritual during her period, as this might spoil all the efforts of the men. You shouldn't walk behind a woman in her period either, and there are many more rules related with the subject. In the whole area of the Ghanese project is only one female soothsayer, and spirituality is a male dominated area in this case. On the other hand, in Kenya the society is matriarchal and the spirit mediums are women. This reflects the difference between equity and equality.
Equity deals with the roles and fashions which are performed by women or by men.
Equality issues, introduced by many western development workers, have distorted the issue of equity. In many indigenous societies, traditionally everything has got its own place. This is disrupted by the occidental worldview. The question is on one hand, if the assumption is true that things are 'wrong' because women do other things than men. On the other hand we shouldn't assume that everything what is traditional is necessarily the right thing to do.