Which physiological effect occurs when a hibernating arctic ground squirrel transitions to shivering thermogenesis?

💡 Explanation

When a hibernating ground squirrel initiates shivering, anaerobic glycolysis occurs locally in muscle tissue because of increased ATP demand exceeding aerobic capacity, leading to lactic acid production and localized pH decrease. Therefore localized pH decrease results, rather than increased UCP1 activity or reduced reliance on BAT which are characteristic of non-shivering thermogenesis.

• Which physiological outcome occurs when a mammal's core body temperature acutely drops and shivering commences?
• Which risk is elevated when an amphibian larva experiences thyroid hormone disruption?
• Which developmental outcome arises when targeted mutation disrupts hedgehog signaling within insect imaginal discs during metamorphosis?
• Which mechanism limits body temperature depression in hibernating arctic ground squirrels during arousal?
• Which outcome reduces efficiency when fish experience hypoxia?
• Which risk increases when arctic fox body core temperature exceeds normal limits during summer?