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Delayed recovery of non-marine tetrapods after the end-Permian mass extinction tracks global carbon cycle.
Proc Biol Sci. 2012 Apr 07; 279(1732):1310-8.PB

Abstract

During the end-Permian mass extinction, marine ecosystems suffered a major drop in diversity, which was maintained throughout the Early Triassic until delayed recovery during the Middle Triassic. This depressed diversity in the Early Triassic correlates with multiple major perturbations to the global carbon cycle, interpreted as either intrinsic ecosystem or external palaeoenvironmental effects. In contrast, the terrestrial record of extinction and recovery is less clear; the effects and magnitude of the end-Permian extinction on non-marine vertebrates are particularly controversial. We use specimen-level data from southern Africa and Russia to investigate the palaeodiversity dynamics of non-marine tetrapods across the Permo-Triassic boundary by analysing sample-standardized generic richness, evenness and relative abundance. In addition, we investigate the potential effects of sampling, geological and taxonomic biases on these data. Our analyses demonstrate that non-marine tetrapods were severely affected by the end-Permian mass extinction, and that these assemblages did not begin to recover until the Middle Triassic. These data are congruent with those from land plants and marine invertebrates. Furthermore, they are consistent with the idea that unstable low-diversity post-extinction ecosystems were subject to boom-bust cycles, reflected in multiple Early Triassic perturbations of the carbon cycle.

Authors+Show Affiliations

Utah Museum of Natural History, 1390 E. Presidents Circle, Salt Lake City, UT 84112-0050, USA. irmis@umnh.utah.eduNo affiliation info available

Pub Type(s)

Historical Article
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

22031757

Citation

Irmis, Randall B., and Jessica H. Whiteside. "Delayed Recovery of Non-marine Tetrapods After the end-Permian Mass Extinction Tracks Global Carbon Cycle." Proceedings. Biological Sciences, vol. 279, no. 1732, 2012, pp. 1310-8.
Irmis RB, Whiteside JH. Delayed recovery of non-marine tetrapods after the end-Permian mass extinction tracks global carbon cycle. Proc Biol Sci. 2012;279(1732):1310-8.
Irmis, R. B., & Whiteside, J. H. (2012). Delayed recovery of non-marine tetrapods after the end-Permian mass extinction tracks global carbon cycle. Proceedings. Biological Sciences, 279(1732), 1310-8. https://doi.org/10.1098/rspb.2011.1895
Irmis RB, Whiteside JH. Delayed Recovery of Non-marine Tetrapods After the end-Permian Mass Extinction Tracks Global Carbon Cycle. Proc Biol Sci. 2012 Apr 7;279(1732):1310-8. PubMed PMID: 22031757.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Delayed recovery of non-marine tetrapods after the end-Permian mass extinction tracks global carbon cycle. AU - Irmis,Randall B, AU - Whiteside,Jessica H, Y1 - 2011/10/26/ PY - 2011/10/28/entrez PY - 2011/10/28/pubmed PY - 2012/7/11/medline SP - 1310 EP - 8 JF - Proceedings. Biological sciences JO - Proc. Biol. Sci. VL - 279 IS - 1732 N2 - During the end-Permian mass extinction, marine ecosystems suffered a major drop in diversity, which was maintained throughout the Early Triassic until delayed recovery during the Middle Triassic. This depressed diversity in the Early Triassic correlates with multiple major perturbations to the global carbon cycle, interpreted as either intrinsic ecosystem or external palaeoenvironmental effects. In contrast, the terrestrial record of extinction and recovery is less clear; the effects and magnitude of the end-Permian extinction on non-marine vertebrates are particularly controversial. We use specimen-level data from southern Africa and Russia to investigate the palaeodiversity dynamics of non-marine tetrapods across the Permo-Triassic boundary by analysing sample-standardized generic richness, evenness and relative abundance. In addition, we investigate the potential effects of sampling, geological and taxonomic biases on these data. Our analyses demonstrate that non-marine tetrapods were severely affected by the end-Permian mass extinction, and that these assemblages did not begin to recover until the Middle Triassic. These data are congruent with those from land plants and marine invertebrates. Furthermore, they are consistent with the idea that unstable low-diversity post-extinction ecosystems were subject to boom-bust cycles, reflected in multiple Early Triassic perturbations of the carbon cycle. SN - 1471-2954 UR - https://www.unboundmedicine.com/medline/citation/22031757/Delayed_recovery_of_non_marine_tetrapods_after_the_end_Permian_mass_extinction_tracks_global_carbon_cycle_ L2 - https://royalsocietypublishing.org/doi/full/10.1098/rspb.2011.1895?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -