...Nicholas J. Shirkey; Kimberly A. Hammond Deer mice ( Peromyscus maniculatus sonoriensis ) populations in the White Mountains of Eastern California are found across a substantial range of partial pressures of oxygen ( P O 2 ). Reduction in P O 2 at high altitude can have a negative impact on aerobic...

..., it was not clear whether changes in heart and lung mass were a function of an increase in organ blood content or of an increase in organ tissue mass. We used captive deer mice ( Peromyscus maniculatus sonoriensis ) to determine the relative effects of ambient temperature and oxygen concentration ( P O2 ) on organ...