Natural History of the Brush Mouse (Peromyscus boylii) in Kansas With Description of a New Subspecies

This work investigates the natural history of the brush mouse, focusing on its geographic distribution in Kansas. Through extensive trapping and observation, the author identifies two subspecies, including a newly described subspecies, Peromyscus boylii cansensis. The study includes analysis of physical characteristics, habitat preferences, and dietary habits based on stomach content examinations. The findings suggest that the brush mouse is confined to wooded cliff systems in southern Kansas, with significant ecological and morphological distinctions between the subspecies. The research contributes to understanding the species' adaptation and historical distribution patterns in relation to climatic changes.