Radio 1's Breakfast show lost 550,000 listeners year-on-year in Nick Grimshaw's first quarter as host, as Chris Evans' Radio 2 numbers grew by nearly 1 million.
Newly-released Rajar figures show 6.69 million people listened to Grimshaw's breakfast programme during the last three months of Q4, the first full quarter he hosted the show since taking over from Chris Moyles on September 24.
That represented a 551,000 audience drop compared to the same period in 2011, a fall of 7.6%, while quarter-on-quarter the audience fell a more modest 0.6%.
However, Radio 1 notes he added almost a quarter of a million 15 to 24-year-olds, a key listening target of the station.
As Radio 1's breakfast audience declined, Radio 2's soared with Chris Evans' numbers rising 11.4% or 978,000 people on the quarter and 7.5% or 668,000 on the year to 9.52 million. That means Radio 2's flagship programme is now 2.83 million listeners ahead of Radio 1's breakfast show.
There were also strong gains for Christian O'Connell's Absolute Radio breakfast show with its audience growing nationally by 19.8% on the quarter and 17.3% on the year to 1.38 million. Bauer's Kiss UK breakfast show was up 3.7% on the quarter and 4.7% on the year to 1.61 million, while in London Global's Capital breakfast show with Dave Berry and Lisa Snowdon remained the top commercial programme, although its audience dropped 17.7% annually and 6.9% between quarters to 1.09 million. Kiss's breakfast show was second and Magic's third.