As described in my profile, I don't want to blog about my own field of research. However, in anticipation of questions about my research, I'm going to write this introductory post.

So far, all my published work addresses how species concepts apply to bacteria.

If you are interested in learning more about this issue, I recommend the following:

1) An essay proposing one approach to defining bacterial species.
2) An essay panning the idea of universal species concepts.
3) A detailed review of the problems with applying species concepts to prokaryotes (same first author as #2).

For the heck of it, here is a listing of my own publications.