title: Seasonal carbon dioxide and oxygen concentrations in the dens of hibernating mammals (Sciuridae).
mesh_terms: D000818:Animals; D002245:Carbon Dioxide / Q000032:analysis*; D004777:Environment; D006605:Hibernation; D008722:Methods; D010100:Oxygen / Q000032:analysis*; D012119:Respiration; D012377:Rodentia; D012621:Seasons; D013045:Species Specificity; D013696:Temperature; D013997:Time Factors
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen