No. Actually got good traffics after add google ads on googlepages.com. I haven't used blogger.com like you have used.
I can't decide at this point, however, I do see less revenue from traffic that arrives from adsense clicks. Maybe that's a coincidence in my case, and maybe for you too. ? You need to gather info for a good length of time before you can be certain and rule out the coincidence scenario.
Adsense and Search are completely different and are not related to each other other than the fact owned by google. It wont affect you.
but i really don't have any "sure" idea about this thing. my opinion above is just a mere opinion based on experience.