David Goodhew, editor of the research, said the shift must be reflected in the Church's theology and practice.

'One doesn't just do theology by weight of numbers but it would be simply unjust to ignore the fact that the bulk of the Anglican Communion is now outside the Western world and also to ignore the gifts there,' he said in an interview with Christian Today.

'Those of us who are white Westerners who have historically had the power in the Communion should be very careful before we start ordering others around or indeed talking over others,' he added.

'We should be thinking very hard when we feel something strongly that there may be quite a bit of our culture in there. It isn't just we're right and they are wrong.'

Tensions across the worldwide Communion have ramped up over the issue of sexuality in particular with the deeply entrenched conservative provinces appalled the American's endorsement of gay marriage. GAFCON, a conservative grouping of mainly African leaders, have called for alternative leadership other than the Archbishop of Canterbury -- currently seen as the first among equals among all Anglican figures.

Goodhew warned the Church as a whole needs to think very carefully about how to forward with deep rifts already firmly in place on both sides.

'People use this word 'inclusive' a lot,' he said. 'If I'm honest I'm slightly suspicious of it because it can be a weapon.

'People define what they want inclusion to mean and then exclude everyone else on the basis of supposedly being inclusive.

'I believe a gospel inclusion includes taking very seriously what the whole Communion is saying and that includes particularly the Communion outside the West.'

The issue of growth is a heated one with conservatives citing their larger congregations and growing attendance figures compared to the rapidly declining Church in America.

But Goodhew is reluctant to reduce the issue of growth to one of conservative versus liberal theology.

'Churches that grow are churches that intend to grow -- they want to grow. Perhaps that sounds too simplistic. But that means they have a theological reason why they are trying to grow. That is where the tradition has an impact. It is the churches that is drawing on their tradition -- whether that is their understanding of the Bible, their understanding of Church tradition, their understanding of the Holy Spirit -- that is pushing them to try and engage with their community and that is what is leading them to growth.

'Churches that are repeating what they have always done and aren't entirely sure why are rather less likely to grow.'

'At the moment in terms of tradition, it would only be honest to say that the growth we are seeing most is in the evangelical charismatic wings of the church.

'But not only that. If you look at Papua New Guinea, Borneo, Melanesia you are seeing thriving Anglo Catholic provinces. So it can happen there. It is just happening so widely in the Catholic provinces.'

END