Environmental factors affecting patch use in two species of gerbilline rodents

B. P. Kotler, J. S. Brown, W. A. Mitchell

Research output: Contribution to journalArticlepeer-review

86 Scopus citations

Abstract

Examined the nocturnal, seed-eating desert rodents, Gerbillus allenbyi (Allenby's gerbil) and G. pyramidum (greater Egyptian sand gerbil), in a sand-dune habitat in the NW Negev Desert of Israel. Overall, there were significant positive correlations between giving-up densities and cloud cover, microhabitat, and moon phase. There were also significant negative correlations between giving-up densities and relative humidity, minimum overnight temperature, and the interaction between loud cover and moon phase. Patch use by gerbils was most intense (giving-up densities were lowest) in the bush microhabitat and on warm, damp, and dark nights. Warm nights may represent lower metabolic costs of foraging, damp nights may represent greater ease of foraging because of heightened olfaction, and dark nights and the bush microhabitat may represent reduced predatory risk in time and space, respectively. -from Authors

Original languageEnglish
Pages (from-to)614-620
Number of pages7
JournalJournal of Mammalogy
Volume74
Issue number3
DOIs
StatePublished - 1 Jan 1993

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Animal Science and Zoology
  • Genetics
  • Nature and Landscape Conservation

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