At least 70 lecturers from the University of Maiduguri have resigned since 2009 when militant Islamist group Boko Haram began terrorising residents in Borno State.
The number of students enrolling has dropped significantly since the insurgency started in Maiduguri, says Dani Mamman, chairman of the university’s Academic Staff Union (ASUU).
He also told the BBC that the university has employed lecturers to replace those who left.
The university has recently been targeted by suicide bombers, most of whom are young women.
In July, authorities in Borno state began digging a 27km (17 miles) trench around the university to prevent attacks by militants.
They took action a day after three suicide bombers attacked the university, killing themselves and a security guard.
Three lecturers of the university are currently being held by the insurgents.
They were part of an oil exploration team in the Lake Chad Basin comprising NNPC staffers and staff of the university.
While the trio were abducted, about 10 of their colleagues were killed.