Late Permian marine ecosystem collapse began in deeper waters: Evidence from brachiopod diversity and body size changes

He, W-H., Shi, G. R., Twitchett, R. J., Zhang, Y., Zhang, K-X., Song, H-J., Yue, M-L., Wu, S-B., Wu, H-T., Yang, T-L. and Xiao, Y-F. 2015, Late Permian marine ecosystem collapse began in deeper waters: Evidence from brachiopod diversity and body size changes, Geobiology, vol. 13, no. 2, pp. 123-138, doi: 10.1111/gbi.12119.

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Title Late Permian marine ecosystem collapse began in deeper waters: Evidence from brachiopod diversity and body size changes
Author(s) He, W-H.
Shi, G. R.ORCID iD for Shi, G. R. orcid.org/0000-0002-5126-4036
Twitchett, R. J.
Zhang, Y.
Zhang, K-X.
Song, H-J.
Yue, M-L.
Wu, S-B.
Wu, H-T.
Yang, T-L.
Xiao, Y-F.
Journal name Geobiology
Volume number 13
Issue number 2
Start page 123
End page 138
Total pages 16
Publisher Blackwell Publishing
Place of publication London, Eng.
Publication date 2015-03
ISSN 1472-4677
1472-4669
Keyword(s) Animals
Aquatic Organisms
Body Size
China
Ecosystem
Fossils
Invertebrates
Seawater
Volcanic Eruptions
Summary Analysis of Permian-Triassic brachiopod diversity and body size changes from different water depths spanning the continental shelf to basinal facies in South China provides insights into the process of environmental deterioration. Comparison of the temporal changes of brachiopod diversity between deepwater and shallow-water facies demonstrates that deepwater brachiopods disappeared earlier than shallow-water brachiopods. This indicates that high environmental stress commenced first in deepwater settings and later extended to shallow waters. This environmental stress is attributed to major volcanic eruptions, which first led to formation of a stratified ocean and a chemocline in the outer shelf and deeper water environments, causing the disappearance of deep marine benthos including brachiopods. The chemocline then rapidly migrated upward and extended to shallow waters, causing widespread mass extinction of shallow marine benthos. We predict that the spatial and temporal patterns of earlier onset of disappearance/extinction and ecological crisis in deeper water ecosystems will be recorded during other episodes of rapid global warming.
Language eng
DOI 10.1111/gbi.12119
Field of Research 060206 Palaeoecology
Socio Economic Objective 960507 Ecosystem Assessment and Management of Marine Environments
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2015, Wiley
Persistent URL http://hdl.handle.net/10536/DRO/DU:30071663

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