Volcanic impact on terrestrial and aquatic ecosystems in the Eastern Mediterranean

This study investigates the impact of volcanic eruptions on terrestrial and aquatic ecosystems in the Eastern Mediterranean, focusing on five volcaniclastic depositions in Lake Van (Turkey) sediments. Using high-resolution pollen data, non-pollen palynomorphs, and microscopic charcoal particles, the researchers analyzed the effects of volcanic forcing on these ecosystems in conjunction with prevailing climate conditions. Results indicate that the thickness of volcanic deposits and climatic conditions significantly influence the impact, with ash deposition commonly resulting in a shift towards herbaceous taxa and increased fire activity. Herbaceous vegetation recovers within 20-40 years, while the lake experiences intensified productivity due to nutrient input. These findings highlight the interplay between volcanic eruptions and climate in shaping environmental disturbances and ecosystem recovery.

Nadine Pickarski, Ola Kwiecien, Thomas Litt