Thomas Herrera-Mishler will continue as president and CEO of the Buffalo Olmsted Parks Conservancy through 2020.

The conservancy’s board of trustees announced Tuesday that Herrera-Mishler’s contract has been extended for seven more years. A landscape architect and longtime admirer of Frederick Law Olmsted, he assumed the posts in February 2008.

The conservancy noted that Herrera-Mishler has increased diversity in the park workforce, planted more than 4,000 trees, finalized the parks master plan and attracted support for more than $8 million in projects ranging from the Humboldt Basin restoration in Martin Luther King Park to the upcoming renovation to Marcy Casino in Delaware Park.

“I look forward to overseeing the continued investment and care of the Olmsted parks and parkways,” Herrera-Mishler said. “Landscape architecture is something I’m extremely passionate about and I have dedicated my professional life to carrying out Olmsted’s vision for our city.”