The well-established faunal turnover event between the Paleozoic fauna (e.g., brachiopods, crinoids) and the Modern fauna (e.g., clams, snails, urchins) coincided with intense global climate change of the latest Permian.
We hypothesize that physiological differences in species vulnerability to temperature-dependent hypoxia explains this ecological transition. We test this hypothesis by performing physiological experiments on different taxonomic groups, dramatically increasing the amount of physiological data available for understudied but ecologically significant marine taxa. Simulations of extinction patterns guided by these traits show that ocean warming and deoxygenation together caused the taxonomic selectivity of the end-Permian mass extinction and resulting permanent shift in marine ecosystem composition…
Source: Proceedings of the National Academy of Sciences (PNAS) | Earth, Atmospheric and Planetary Sciences
Proceedings of the National Academy of Sciences (PNAS)
Topics: Earth, Atmospheric and Planetary Sciences- Thermodynamic origin of atmospheric new particle formation: Theory for stable nucleating pairs
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