New York’s dance scene has a lot of activity. But a new study portrays a difficult existence. “The survey depicts an economically starved art form in which few practitioners are adequately compensated, health insurance is rare, and the effort to find rehearsal space is increasingly Herculean. Among the especially grim findings, 58 percent of respondents say they have no paid staff, with just 37 of the 310 who responded to the question claiming dancers as salaried employees and only 18 of 294 respondents owning rehearsal space.”