Interesting election results in Québec

I just noticed an interesting trend in the election results for the ridings in Québec. In everycase where the incumbent lost, there's a fixed pattern. Where a Liberal lost, the riding went to the BQ. Where a BQ lost, the riding went to a Conservative (except for one that went to an independant).

Is there a reasonable interpretation? I think it can be summed up in two points.

1. Discontent in Québec with regard to the ad scandal resulted in a movement against the federal government to the seperatists.
2. Those who are shifting away from seperatism to federalism are siding with the Conservatives.
   

At least, that's my take on the Québec results.

Information source (cbc.ca/canadavotes)