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WFRF:(Jourdan J.)
 

Search: WFRF:(Jourdan J.) > (2011-2014) > Cretaceous environm...

  • Kergoat, G. J. (author)

Cretaceous environmental changes led to high extinction rates in a hyperdiverse beetle family

  • Article/chapterEnglish2014

Publisher, publication year, extent ...

  • 2014-10-21
  • Springer Science and Business Media LLC,2014

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/208280
  • https://gup.ub.gu.se/publication/208280URI
  • https://doi.org/10.1186/s12862-014-0220-1DOI

Supplementary language notes

  • Language:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • 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.

Subject headings and genre

  • MEDICIN OCH HÄLSOVETENSKAP Hälsovetenskap hsv//swe
  • MEDICAL AND HEALTH SCIENCES Health Sciences hsv//eng
  • Cretaceous-palaeogene mass extinction
  • Cretaceous terrestrial revolution
  • Dating analyses
  • DIVERGENCE TIMES
  • CLIMATE-CHANGE
  • TERRESTRIAL-REVOLUTION
  • DIVERSIFICATION RATES
  • FOSSIL CALIBRATIONS
  • SPECIES RICHNESS
  • BAYES
  • FACTORS
  • ZONE BIOTA
  • PHYLOGENY
  • EVOLUTIONARY
  • Evolutionary Biology
  • Genetics & Heredity
  • ATES OF AMERICA
  • V106
  • P7083
  • ATES OF AMERICA
  • V109
  • P20955
  • ANDLER MA
  • 1992
  • GEOLOGICAL SOCIETY OF AMERICA BULLETIN
  • V104
  • P543

Added entries (persons, corporate bodies, meetings, titles ...)

  • Bouchard, P. (author)
  • Clamens, A. L. (author)
  • Abbate, J. L. (author)
  • Jourdan, H. (author)
  • Jabbour-Zahab, R. (author)
  • Genson, G. (author)
  • Soldati, L. (author)
  • Condamine, Fabien L.Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap,Department of Biological and Environmental Sciences (author)
  • Göteborgs universitetInstitutionen för biologi och miljövetenskap (creator_code:org_t)

Related titles

  • In:Bmc Evolutionary Biology: Springer Science and Business Media LLC14:2201471-2148

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