Dynamics of rodent assemblages inhabiting abandoned petroleum landfarms in Oklahoma

J. A. Wilson, R. L. Lochmiller, D. M. Janz

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Studies on the effects of anthropogenic contamination on wildlife have largely been focused at the individual level. Biomarkers have been used to monitor changes in the health of individuals exposed to contaminants; however, little attention has been given to the effects of chronic exposure at the population or community levels. We studied rodent assemblages from uncontaminated (reference) sites (n = 5) and abandoned petrochemical landfarms (n = 5) in Oklahoma to investigate potential alterations in community structure and composition. Rodent assemblages inhabiting landfarms had lower species diversity, lower richness, and a more even distribution of individuals across species. Reference sites showed typical rodent assemblage structure dominated by hispid cotton rats (Sigmodon hispidus) and fulvous harvest mice (Reithrodontomys fulvescens). Assemblages inhabiting landfarms also were dominated by cotton rats; however, harvest mice were replaced by deer mice (Peromyscus maniculatus) on two landfarms. Contaminated sites also were characterized by an increase in house mice (Mus musculus) and an absence of voles (Microtus spp.). Although landfarms tended to have lower cotton rat densities, we could not separate the effects of contamination from increased bare ground associated with landfarms. The results of this study suggest that rodent assemblages were different on landfarms, when compared with reference sites. However, no direct link between site contamination and rodent community structure could be established.

Original languageEnglish (US)
Pages (from-to)1016-1027
Number of pages12
JournalEcological Applications
Volume14
Issue number4
DOIs
StatePublished - Aug 2004

Fingerprint

rodent
petroleum
cotton
community structure
deer
community composition
biomarker
species diversity
pollutant
contamination
effect
harvest

Keywords

  • Contamination
  • Cotton rats
  • Diversity
  • Evenness
  • Landfarms
  • Oklahoma, USA
  • Petroleum
  • Reithrodontomys fulvescens
  • Sigmodon hispidus

ASJC Scopus subject areas

  • Ecology

Cite this

Dynamics of rodent assemblages inhabiting abandoned petroleum landfarms in Oklahoma. / Wilson, J. A.; Lochmiller, R. L.; Janz, D. M.

In: Ecological Applications, Vol. 14, No. 4, 08.2004, p. 1016-1027.

Research output: Contribution to journalArticle

Wilson, J. A. ; Lochmiller, R. L. ; Janz, D. M. / Dynamics of rodent assemblages inhabiting abandoned petroleum landfarms in Oklahoma. In: Ecological Applications. 2004 ; Vol. 14, No. 4. pp. 1016-1027.
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