Biotic invasion, niche stability, and the assembly of regional biotas in deep time: Comparison between faunal provinces

Mark E. Patzkowsky, Steven M. Holland

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Biotic invasions in the fossil record provide natural experiments for testing hypotheses of niche stability, speciation, and the assembly and diversity of regional biotas. We compare ecological parameters (preferred environment, occupancy, median abundance, rank abundance) of genera shared between faunal provinces during the Richmondian Invasion in the Late Ordovician on the Laurentian continent. Genera that spread from one faunal province to the other during the invasion (invading shared genera) have high Spearman rank correlations (>0.5) in three of four ecological parameters, suggesting a high level of niche stability among invaders. Genera that existed in both regions prior to and following the invasion (noninvading shared genera) have low correlations (<0.3) and suggest niche shift between lineages that diverged at least 8 Myr earlier. Niche shift did not accumulate gradually over this time interval but appears to have occurred in a pulse associated with the onset of the Taconic orogeny and the switch from warm-water to cool-water carbonates in southern Laurentia.

Original languageEnglish (US)
Pages (from-to)359-379
Number of pages21
JournalPaleobiology
Volume42
Issue number3
DOIs
StatePublished - Aug 1 2016

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Biota
biota
niche
niches
Water
Carbonates
organisms
Taconic orogeny
cool water
hypothesis testing
Laurentia
warm water
fossil record
carbonates
Ordovician
fossils
water
carbonate
province
comparison

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Agricultural and Biological Sciences(all)
  • Palaeontology

Cite this

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Biotic invasion, niche stability, and the assembly of regional biotas in deep time : Comparison between faunal provinces. / Patzkowsky, Mark E.; Holland, Steven M.

In: Paleobiology, Vol. 42, No. 3, 01.08.2016, p. 359-379.

Research output: Contribution to journalArticle

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