Arid
DOI10.1186/s12862-014-0220-1
Cretaceous environmental changes led to high extinction rates in a hyperdiverse beetle family
Kergoat, Gael J.1; Bouchard, Patrice2; Clamens, Anne-Laure1; Abbate, Jessica L.3; Jourdan, Herve4; Jabbour-Zahab, Roula3; Genson, Gwenaelle1; Soldati, Laurent1; Condamine, Fabien L.5
通讯作者Kergoat, Gael J.
来源期刊BMC EVOLUTIONARY BIOLOGY
ISSN1471-2148
出版年2014
卷号14
英文摘要

Background: As attested by the fossil record, Cretaceous environmental changes have significantly impacted the diversification dynamics of several groups of organisms. A major biome turnover that occurred during this period was the rise of angiosperms starting ca. 125 million years ago. Though there is evidence that the latter promoted the diversification of phytophagous insects, the response of other insect groups to Cretaceous environmental changes is still largely unknown. To gain novel insights on this issue, we assess the diversification dynamics of a hyperdiverse family of detritivorous beetles (Tenebrionidae) using molecular dating and diversification analyses.


Results: Age estimates reveal an origin after the Triassic-Jurassic mass extinction (older than previously thought), followed by the diversification of major lineages during Pangaean and Gondwanan breakups. Dating analyses indicate that arid-adapted species diversified early, while most of the lineages that are adapted to more humid conditions diversified much later. Contrary to other insect groups, we found no support for a positive shift in diversification rates during the Cretaceous; instead there is evidence for an 8.5-fold increase in extinction rates that was not compensated by a joint increase in speciation rates.


Conclusions: We hypothesize that this pattern is better explained by the concomitant reduction of arid environments starting in the mid-Cretaceous, which likely negatively impacted the diversification of arid-adapted species that were predominant at that time.


英文关键词Cretaceous-palaeogene mass extinction Cretaceous terrestrial revolution Dating analyses Diversification analyses Environmental changes Palaeoclimates Tenebrionidae
类型Article
语种英语
国家France ; Canada ; Sweden
收录类别SCI-E
WOS记录号WOS:000344960600001
WOS关键词DIVERGENCE TIMES ; CLIMATE-CHANGE ; TERRESTRIAL-REVOLUTION ; DIVERSIFICATION RATES ; FOSSIL CALIBRATIONS ; SPECIES RICHNESS ; BAYES FACTORS ; ZONE BIOTA ; PHYLOGENY ; EVOLUTIONARY
WOS类目Evolutionary Biology ; Genetics & Heredity
WOS研究方向Evolutionary Biology ; Genetics & Heredity
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/181157
作者单位1.Montpellier SupAgro, INRA, IRD, CIRAD,UMR CBGP 1062, F-34988 Montferrier Sur Lez, France;
2.Agr & Agri Food Canada, Canadian Natl Collect Insects Arachnids & Nematod, Ottawa, ON K1A 0C6, Canada;
3.Univ Montpellier 2, CNRS, UMR CEFE 5175, F-34293 Montpellier, France;
4.Aix Marseille Univ, Univ Avignon & Pays Vaucluse, IRD,Ctr IRD Noumea, UMR IMBE 237, F-98848 Noumea, Nouvelle Caledo, France;
5.Univ Gothenburg, Dept Biol & Environm Sci, SE-40530 Gothenburg, Sweden
推荐引用方式
GB/T 7714
Kergoat, Gael J.,Bouchard, Patrice,Clamens, Anne-Laure,et al. Cretaceous environmental changes led to high extinction rates in a hyperdiverse beetle family[J],2014,14.
APA Kergoat, Gael J..,Bouchard, Patrice.,Clamens, Anne-Laure.,Abbate, Jessica L..,Jourdan, Herve.,...&Condamine, Fabien L..(2014).Cretaceous environmental changes led to high extinction rates in a hyperdiverse beetle family.BMC EVOLUTIONARY BIOLOGY,14.
MLA Kergoat, Gael J.,et al."Cretaceous environmental changes led to high extinction rates in a hyperdiverse beetle family".BMC EVOLUTIONARY BIOLOGY 14(2014).
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