constituencies?

Constituencies, are not just "voters" in a given election or district {ward}, the word can also be used to describe the clients of a business.....since "University" is used in your example, it would seem that they are refering to the students/alumni and perhaps other supporters {outside donators} of that particular school.

No. It is not a very good word to choose here imho and it would probably better be substituted by "interests"