Episode 16: Sky Islands

The video explores the unique high plateaus in Yosemite, highlighting their isolated plant species. It describes the vibrant wildflowers found on rocky summits and the importance of conducting plant surveys to map and understand these communities. The video also discusses the unique alpine flora, such as skypilot and buckweed, and the potential impact of climate change on these plants. The surprising biodiversity in these high-altitude areas is emphasized, along with the need for careful observation to discover new species.

What is unique about the high plateaus in Yosemite?

• They are covered in dense forests.

• They are isolated islands above glaciers.

• They are the lowest points in the range.

• They are home to common plant species.

What is notable about the wildflowers found on the rocky summits?

• They are all the same color.

• They have a wide variety of colors and shapes.

• They only bloom in winter.

• They are very tall plants.

What is the purpose of the research project in the Sky Islands?

• To build new hiking trails.

• To study plant communities and their changes over time.

• To remove invasive species.

• To plant new trees.

Which flower is described as having a bright purple-blue color?

• Primrose

• Alpine buckweed

• Skypilot

• Alpine gold

What adaptation is mentioned for the Alpine buckweed?

• It blooms only at night.

• It has very tall stems.

• It grows only in water.

• It has dense hair-covered leaves.

What challenge do these high-altitude plants face with climate change?

• They thrive in warmer climates.

• They are unaffected by climate change.

• They may not adapt fast enough to changing conditions.

• They can easily move to higher altitudes.

How many plant species were unexpectedly found at the research site?

• Around 200 species

• Around 100 species

• Around 40 species

• Around 25 species