They examined the DNA of the ancient plants found in the lake beds in Alaska and Siberia, and learned how plants react to warming 15,000 years ago at the end of the last ice age – the last major exhaustion in the earth. The study showed that plants support each other during the cold periods, but began to compete with an increase in temperature. A warmer climate also allowed trees and shrubs to spread and replace smaller plants.
One of the key results is that herbs and shrubs are more vulnerable than trees against extinction. Some plant species disappeared thousands of years after climate change, which suggests that modern environmental damage may have long -term consequences.
These data will help scientists predict the future disappearance of plants.
Source: Ferra
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