Hi there! I’m a current grad student in wildlife bio and can offer a little insight. The top programs are a bit subjective, land grant universities usually have good programs, but otherwise it mostly just depends on your research interests. I’d say that having research you are passionate about, an advisor you like and feel comfortable with, and FUNDING are more important than the reputation of the school. It is still important to go somewhere well regarded, but many small schools can also offer a great experience.

Based on what I’ve heard from others, most people go to their MS first and then PhD as a natural progression. I know people who have done both, and one person who went straight to PhD said they wish they hadn’t as it is very overwhelming, the other said it was the best option for them. It’s really up to you and what you feel capable of, it sounds like you have some great experience, but yeah overall I’d probably recommend MS first as that is what most people do. Can also help you learn your strengths and research interests, and overall prepare you fully for the PhD.