| Autor: |
Rogger J; Department of Earth Sciences, ETH Zurich, Zurich, Switzerland.; Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland., Judd EJ; Department of Geosciences, University of Arizona, Tucson, Arizona, USA., Mills BJW; School of Earth and Environment, University of Leeds, Leeds, UK., Goddéris Y; Géosciences-Environnement Toulouse, CNRS-Observatoire Midi-Pyrénées, Toulouse, France., Gerya TV; Department of Earth Sciences, ETH Zurich, Zurich, Switzerland., Pellissier L; Department of Environmental Systems Science, ETH Zurich, Zurich, Switzerland.; Swiss Federal Institute for Forest, Snow and Landscape Research, Birmensdorf, Switzerland. |
| Abstrakt: |
Periods of large igneous province (LIP) magmatism have shaped Earth's biological and climatic history, causing major climatic shifts and biological reorganizations. The vegetation response to LIP-induced perturbations may affect the efficiency of the carbon-climate regulation system and the post-LIP climate evolution. Using an eco-evolutionary vegetation model, we demonstrate here that the vegetation's climate adaptation capacity, through biological evolution and geographic dispersal, is a major determinant of the severity and longevity of LIP-induced hyperthermals and can promote the emergence of a new climatic steady state. Proxy-based temperature reconstructions of the Permian-Triassic, Triassic-Jurassic, and Paleocene-Eocene hyperthermals match the modeled trajectories of bioclimatic disturbance and recovery. We conclude that biological vegetation dynamics shape the multimillion-year Earth system response to sudden carbon degassing and global warming episodes. |
