Elevational variation in trichomes of the alpine subnival woolly plant <i>Eriophyton wallichii</i>: abiotic and biotic correlates and impacts on other traits

Our results indicate that adaptation to low temperatures is a key driver in the evolution of woolly plant phenotypes in alpine subnival environments, highlighting potential consequences for these adaptations under global climate change and species distribution shifts. Additionally, the trade-off between trichome density and chemical defences may have significant implications for plant survival strategies in resource-limited environments. Our data also suggest that biotic interactions, especially those involving herbivores, may play an important role in shaping the adaptive mechanisms of some alpine subnival plants.