Alpine Tundra Ecosystem Concepts

The video explores the concept of life zones, discovered by geologist Seahart Miriam, highlighting how plant communities change with latitude and elevation. It delves into the characteristics of alpine tundra, found at various elevations globally, and the adaptations of plants and animals to harsh conditions. The video emphasizes the fragility of tundra ecosystems and the importance of conservation efforts to protect these environments from human impact.

What did geologist Seahart Miriam observe about plant communities in the late 1800s?

• They were the same at all elevations.

• They varied with latitude and elevation.

• They were only found in deserts.

• They were identical across the globe.

Where does the alpine tundra begin in the Alaskan mountains?

• At sea level

• Around 3,500 feet

• At 10,000 feet

• Above 15,000 feet

What is a significant challenge for life in the alpine zone?

• Excessive rainfall

• Abundant food sources

• Low wind speeds

• High UV radiation

Which pigment helps some alpine plants convert sunlight to heat?

• Anthocyanins

• Carotenoids

• Chlorophyll

• Xanthophylls

Which animal is the largest squirrel in North America found in the alpine tundra?

• Pika

• Yellow-bellied marmot

• Arctic fox

• Snowshoe hare

What adaptation helps pikas survive in the tundra?

• Reduced appendages

• Bright coloration

• Long ears

• Thick fur

Which of the following is NOT a common year-round resident of the tundra?

• Marmots

• Pikas

• Mountain goats

• Parmigian

Why is the tundra considered a fragile environment?

• It is densely populated by humans.

• It has a short growing season.

• It is resistant to disturbances.

• It has abundant resources.

How long can it take for the tundra to recover from human disturbance?

• 50 years

• 500 years

• 100 years

• 10 years

What is a key reason for conserving the tundra ecosystem?

• It is a major tourist attraction.

• It provides snowmelt for agriculture.

• It is easy to access.

• It has a long growing season.