Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina
Extinction intensity during Ordovician and Cenozoic glaciations explained by cooling and palaeogeography
Saupe, E.E.; Qiao, H.; Donnadieu, Y.; Farnsworth, A.; Kennedy-Asser, A.T.; Ladant, J.-B.; Lunt, D.J.; Pohl, A.; Valdes, P.J.; Finnegan, S. (2020). Extinction intensity during Ordovician and Cenozoic glaciations explained by cooling and palaeogeography. Nature Geoscience 13(1): 65-70. https://dx.doi.org/10.1038/s41561-019-0504-6
In: Nature Geoscience. Nature Publishing Group: London. ISSN 1752-0894; e-ISSN 1752-0908
Peer reviewed article  
Beschikbaar in  Auteurs 
Auteurs  Top 
  • Saupe, E.E.
  • Qiao, H.
  • Donnadieu, Y.
  • Farnsworth, A.
  • Kennedy-Asser, A.T.
  • Ladant, J.-B.
  • Lunt, D.J.
  • Pohl, A.
  • Valdes, P.J.
  • Finnegan, S.
Abstract
    A striking feature of the marine fossil record is the variable intensity of extinction during superficially similar climate transitions. Here we combine climate models and species trait simulations to explore the degree to which differing palaeogeographic boundary conditions and differing magnitudes of cooling and glaciation can explain the relative intensity of marine extinction during greenhouse–icehouse transitions in the Late Ordovician and the Cenozoic. Simulations modelled the response of virtual species to cooling climate using a spatially explicit cellular automaton algorithm. We find that palaeogeography alone may be a contributing factor, as identical changes in meridional sea surface temperature gradients caused greater extinction in Late Ordovician simulations than in Cenozoic simulations. Differences in extinction from palaeogeography are significant, but by themselves are insufficient to explain observed differences in extinction intensity. However, when simulations included inferred changes in continental flooding and interval-specific models of sea surface temperature, predicted differences in relative extinction intensity were more consistent with observations from the fossil record. Our results support the hypothesis that intense extinction in the Late Ordovician is partially attributable to exceptionally rapid and severe cooling compared to Cenozoic events.
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ.