Statistical testing of community patterns: Uppermost Hamilton Group, Middle Devonian (New York State: USA)

Nicole Bonuso, Cathryn R. Newton, James C. Brower, Linda C. Ivany

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

We present an extensive and rigorously controlled quantitative paleoecological study within an interval of inferred coordinated stasis. This Middle Devonian Hamilton Group study completes a 20-yr project by providing data within the unresolved upper Hamilton Group section. Together with other rigorously controlled studies, these data sets have the potential to address the larger question of coordinated stasis in the fossil record. We collected data from the Windom Member, Moscow Formation (uppermost Hamilton Group), to test different statistical approaches to define paleocommunities. We evaluate various techniques, including non-parametric multidimensional scaling and agglomerative hierarchical clustering to decipher community patterns. Additionally, we advocate regular use of cluster significance testing along with ANOSIM (i.e. analysis of similarities) when examining ecological data. Together these techniques test the significance of sample groups more rigorously than conventional testing (e.g. discriminant analysis or analysis of variance (ANOVA)). Our results indicate that communities within this upper Hamilton Group interval exhibit variable taxonomic membership within a relatively stable ecological structure.

Original languageEnglish (US)
Pages (from-to)1-24
Number of pages24
JournalPalaeogeography, Palaeoclimatology, Palaeoecology
Volume185
Issue number1-2
DOIs
StatePublished - Sep 1 2002

Keywords

  • Hamilton Group
  • Middle Devonian
  • Paleoecology
  • Statistical methods

ASJC Scopus subject areas

  • Oceanography
  • Ecology, Evolution, Behavior and Systematics
  • Earth-Surface Processes
  • Palaeontology

Fingerprint Dive into the research topics of 'Statistical testing of community patterns: Uppermost Hamilton Group, Middle Devonian (New York State: USA)'. Together they form a unique fingerprint.

  • Cite this