Depauperate

2009, David Quammen, Where the Salmon Rule, National Geographic (August 2009), page 35, "...because of Kamchatka's isolation from mainland river systems, its streams are relatively depauperate of other fresh water fish, leaving Oncorhynchus species to face few competitors and predators."

Liming […] does not so much depauperate; the ground will last long, and beareth larger grain.

Humility of mind which depauperates the spirit.