Original sentence: As would be expected of a mouse native to salt marshes, this species is a competent swimmer and is tolerant of salt in its diet and water supply.Predation by domestic cats is an issue due to encroachment of the limited habitat by humans at the perimeter of the San Francisco Bay
Edited sentence: As would be expected of a mouse native to salt marshes, this species is a good swimmer and is tolerant of salt in its diet and water supply.Concern over predation by domestic cats is an issue due to encroachment of the limited habitat by humans at the perimeter of the San Francisco Bay