Races in Australia, Germany and Italy had lower crowds this year than last season and the stands at Sunday's French Grand Prix were only two-thirds full.
Much of the blame for these low crowds has been laid with the cost of entry to the races with the cheapest tickets as high as $150 at some races.
"If we hold prices at the same level, we're going to have to put on a bigger show," said Ron Dennis, manager of the McLaren-Mercedes team. "The teams and constructors feel a responsibility to do this."
The managers of the 10 teams plan to meet to discuss how to stop attendances falling. Proposals include holding a qualifying session on the morning of each Grand Prix, instead of the day before, and staging a race involving celebrities.
The biggest attendance decline after 10 races this season was at the San Marino Grand Prix in April in Imola, Italy. About 82,000 fans turned up, a decline of 23,000 on last year and almost 100,000 down on the 2000 race.
Formula One Management, the commercial rights-holder headed by Bernie Ecclestone, said there has been a 'slight' decline in ticket sales this year but emphasised that it 'was not overly concerned'.
Months after altering Formula One's rules to counter a slide in television ratings, the sport is considering more changes to boost attendances.
