In some cases computer simulation studies or quantitative reviews of published data will be acceptable. How to get started The most important thing is to choose a topic that you are passionate about, since your enthusiasm and interest will help you do whatever is needed to finish the study. A list of suggested topics is provided. Or, skim through your text looking for things that interest you. For example, if you find a classic study about wolves and moose, the chapter it is in will probably be about predation.
Predation is the broad context.
You may also want to go for a walk in an environment you enjoy and look there for inspiration. Be aware that effective studies generally begin with a question first and then a choice of species or location is made next. Thus, the ideal system is chosen to match the question. It is often difficult to do the reverse, but not impossible. At first you may only have an intuitive inkling, or nonverbal sensation about something that interests you.