Longer Version

1. The criterion for program inclusion is just that a philosophy (or a history and philosophy of science) Ph.D. program have at least one full-time faculty member who self-identifies as a philosopher of biology. Programs do not have to be in English-speaking departments. A separate list of M.A. programs can be found at the bottom of this page.
2. The standard of evidence required to make the list is an official (or personal) university-affiliated website—or a publicly-accessible CV—that lists philosophy of biology as a primary research interest.
3. Philosophers who have made contributions to the philosophy of biology but who do not list phil bio as an AOS/AOC are usually not listed. For the most part, this wiki simply reflects the self-reports of online faculty listings, which is a way to avoid having to make judgment calls about who counts as a philosopher of biology in borderline cases. The rule of thumb is: someone counts if they say they count. That said, erring on the side of being inclusive is generally a good policy since prospective students can peruse bios, CVs, and publication lists to help determine whether they think a borderline faculty member would be potentially helpful to their phil bio research interests.
4. Affiliated, part-time, and emeritus faculty who work closely with graduate students should be labelled as such inside parentheses next to their names, e.g., Joe Dumit (Science & Technology Studies) // website, CV, PhilPapers. It is often best to explain the role these individuals play in programs at greater length on Wiki Program Pages. The point of listing them to begin with is not to pad a department's stats by inflating the number of philosophers of biology, but rather to identify individuals who will potentially be of use to graduate students, but who might not be found on a department website.
5. Bioethics, environmental ethics, philosophy of neuroscience/cognitive science, philosophy of medicine, and history of biology—in and of themselves—are not counted as philosophy of biology, though philosophers of biology with those interests are listed.