FRESNO, Calif. — A week or so ago, California’s lone gray wolf passed his first anniversary as a transplant resident with the same technical gear many people possess: a Twitter account and a website about his travels.

‘‘What strikes me about him is that when I talk to the general public they show remarkable knowledge about his movements, much more than some world events,’’ said Richard Callas, a senior environmental scientist with the California Department of Fish and Wildlife. ‘‘Wolves captivate public interest.