My wife saw a lizard today at Bunny Flat up on Mt. Shasta at 6900 feet and asked me "How do lizards survive under the snow all winter long?
The one we saw seemed to be wondering: "Why am I awake about 4 to 5 months early?"
I wanted to answer the lizard: "Global Climate changes are affecting us all!"
Here is the answer:
begin quotes:
Lizards above 6,000 feet on Mt. Shasta survive winter by entering a dormant state known as
brumation,
hiding in deep, insulated crevices or burrows below the frost line to
escape freezing temperatures. Their metabolism slows significantly to
conserve energy, acting as cold-blooded ectotherms that rely on finding
protected spots rather than generating body heat.Key Survival Mechanisms:
- Brumation: This is not a deep sleep like hibernation but a dormant phase where they are relatively immobile and do not eat, relying on stored energy.
- Deep Shelters: They hide deep in rock fractures, rock piles, or rotting tree trunks below the surface snow level.
- Freeze Avoidance: They find places that stay just above freezing, though they may face death if they select poor shelter.
- High-Altitude Adaptations: Lizards in colder, high-altitude climates often become larger (following "Bergmann's rule") than their lower-altitude counterparts, which can help them retain body heat longer.
They remain in these protected areas for months until spring temperatures allow them to safely emerge.
5:59
Show all
Dive deeper in AI Mode
AI can make mistakes, so double-check responses
No comments:
Post a Comment