Ambient temperature limits above-ground activity of the subterranean rodent Spalacopus cyanus

Enrico L. Rezende, Arturo Cortés, Leonardo D. Bacigalupe, Roberto F. Nespolo, Francisco Bozinovic

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

We studied daily activity patterns of the subterranean rodent Spalacopus cyanus, in the field during summer and winter, and under laboratory conditions at two different temperatures, 15°C and 30°C. This rodent exhibited nocturnal activity in the laboratory, but diurnal aboveground activity in the field. We suggest that this discrepancy between field and laboratory results is a consequence of differential space-use inside burrows during the day, and that low external ambient temperatures appear to constrain activity of S. cyanus outside their burrows during the night in summer and winter. In contrast, we hypothesize that high summer temperatures constrain above-ground activity at midday.

Original languageEnglish
Pages (from-to)63-74
Number of pages12
JournalJournal of Arid Environments
Volume55
Issue number1
DOIs
Publication statusPublished - 1 Sep 2003

Keywords

  • Ambient temperature
  • Coruros
  • Locomotor activity pattern
  • Spalacopus cyanus
  • Subterranean mode of life

ASJC Scopus subject areas

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

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