By Emily Chasan

NEW YORK (Reuters) - At Bottomless Closet, a New York non-profit that helps women move from welfare to jobs, Kendall Farrell said she may cut back on workshops and look elsewhere for funds as Wall Street money dries up.

With layoffs, buyouts and cutbacks rippling through financial markets, charities that rely on donations from high-paid professionals are bracing for a slump.

Thirty percent of charitable giving comes from the richest one percent of the population which includes many Wall Street professionals, according FSG Social Impact Advisors in Boston.

"When the economy goes down people tend to tighten their purse strings, and oftentimes charity and philanthropy can be the first thing that is affected," said Farrell, the executive director of Bottomless Closet.

Several charities will miss Bear Stearns Co, which agreed to be acquired by JPMorgan Chase & Co for $2 per share on Sunday.

Since the 1970s the investment house has required all senior managing directors to give at least four percent of their annual incomes to charity.

The charitable trust of Bear Stearns Chairman James Cayne has been an important donor for Bottomless Closet.

Fourteen months ago, Bear Stearns shares traded at $160 each. Their sale to JPMorgan Chase for $2 has vastly devalued Cayne's 4.9 percent stake in the company. His trust also holds thousands of Bear Stearns shares.