IB ESS HL 2.5.6 Secondary Succession Topic Practice

Question 1

[Maximum number: 3]
Figure:Fact file on giant sequoia trees

Figure: Fact file on giant sequoia trees: Fact file on giant sequoia trees
Giant sequoias are legally protected in California. They are adapted to periodic fire; historically, wildfires have occurred in California every 6-35 years. They have thick bark up to 46 cm to protect the core from fire. Fire dries cones and releases seeds, while ash creates nutrient-rich soils. Seeds can also be released by the long-horned beetle, which lays eggs in cones; larvae eat the cone, releasing seeds.

Describe the process of succession after a wildfire has occurred in the forest.

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