Diet estimation by faeces analysis: Sampling optimisation for the European hare

Krisztián Katona, Vilmos Altbäcker

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

We investigated how the sampling process of microhistological faeces analysis could be optimised for an accurate estimation. Spring diet composition of European hare (Lepus europaeus Pallas, 1778) was determined in a juniper shrubland at Bugac, Hungary. Both inter and intraobserver reliability was high permitting us to separate the components of variance due to the methodological steps in the faeces analysis. Estimates varied depending on the number of independent droppings, pellets/individual, subsamples/pellet and epidermis/subsample. The variance was much higher among than within the independent pellet groups. The cumulative frequency estimate stabilised at around 100 epidermis fragments per pellet. We conclude that the most critical steps of the sampling procedure are the collection of independent droppings and the identification of a sufficient number of epidermis fragments. We propose to collect at least 10 independent droppings, one pellet/individual, and analyse 100 epidermis fragments as an optimum for estimating the relative frequency of forage classes reliably. The importance of the individual variability in the diet should be emphasised.

Original languageEnglish
Pages (from-to)11-15
Number of pages5
JournalFolia Zoologica
Volume51
Issue number1
Publication statusPublished - Jan 1 2002

Keywords

  • Accuracy
  • Faecal pellet
  • Lepus europaeus
  • Microhistology
  • Minimum sample size

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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