Agreed, but the character of his creative acts has changed, and works mostly through natural processes, like fertilization and mitosis. That doesn't mean that God has ceased to be in charge, just that he isn't creating
ex nihilo or by directly forming new creatures. The few exceptions to this have been small-scale and for the purposes of establishing his covenants.
This is why speciation, which previously happened at an average rate of one new species per year for the past several hundred million years, suddenly stops when Man appears on the scene: The sixth day of creation ended, and God entered his period of rest, which will in turn end when it comes time to create a new heavens and a new earth.
Shalom