The Society of Integrative and Comparative Biology has even launched a boycott of Louisiana and cancelled a scheduled convention in New Orleans.
Because the Democrats scheduled their convention for late July, the party's candidate will have to stretch out the same allocation over a longer period.
The National Automobile Dealers Association, with 30,000 members, has scheduled its convention for New Orleans at the same time professional football would like to have its Super Bowl week, Jan . 27to Feb. 3. The N.F.L. has about 27,000 hotel rooms booked from Jan . 20 to 27
Soon after, the party scheduled its convention in the city, a first for the G.O.P. White House aides quietly told each other the president had a good chance of winning New York in 2004.
The mayor and Mr. Richard like to boast that the Indiana State Democratic Convention has scheduled its 2012 convention in Fort Wayne because there are finally enough rooms to accommodate 2,000 convention-goers.
After the attack last year, 13 of the big trade shows and conventions scheduled for New York City were canceled, but 23 new ones, from the annual convention of the American Society of Travel Agents to the Coca-Cola shareholder meeting, were moved to New York.
What happened, he said, was the Democratic national chairman, Terry McAuliffe, announced that he was holding his convention in mid-July to try to maneuver the Republicans into scheduling their convention to coincide with the Summer Olympics.
Corporate meetings and political conventions scheduled for this year could be cancelled.
Three conventions scheduled for October, expected to attract more than 50,000 people, are to proceed as planned.
Three conventions scheduled for September have been canceled, partly because the organizers did not know when the airport would reopen.
