Alexandros Galanidis @agalanidis.bsky.social · 27/03/2026Most populations adapted rapidly via natural selection 🧬 Genomic changes were repeatable across similar climates — including genes tied to drought tolerance and flowering time. Evolution happened amazingly fast: within 3–5 years. 100
Alexandros Galanidis @agalanidis.bsky.social · 27/03/2026But in the hottest, driest sites populations didn’t evolve directionally — they showed random genetic drift and went extinct 💀 Extreme heat shrank population sizes, pushing them past an evolutionary tipping point. Without genetic diversity, there’s no rescue. 110
Alexandros Galanidis @agalanidis.bsky.social · 27/03/2026Our key message: genetic diversity is the lifeline 🔑 Rare species with small, low-diversity populations are poorly equipped to cope with climate change. Preserving biodiversity isn't just ethical — it's evolutionary insurance. 110
