The gender ratio is 105 to 100 at birth. The death rate in Canada for non-senior males and females is the same. The low birth rate amongst fertile woman is a negative affect of immigration. Men will not get married (or even live common law) when there are too many women after them -- the marriage/common law rate is something like 44 % rather than 60% (as it was 30 years ago in Canada and still is in England).  Add to that the increasingly skewed numbers of Asian women/white men relationships and the lack of almost any non-Asian immigration to counter balance it.