Properties of crowding indices and statistical tools to analyze parasite crowding data

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Crowding, i.e., the size of the infrapopulation inhabiting an individual host, is a major component of parasites' environment, which often influences both morphological and life-history characters (the so-called density-dependent characters) in different parasite taxa. Although crowding equals intensity in case of a single parasite individual, mean intensity of the host population does not define mean crowding of the parasite population. Crowding indices are notoriously hard to handle statistically because of the inherently large number of nonindependent values in data. In this study, we aim to investigate the apparently paradox features of crowding indices and to make some proposals and also to introduce statistical methods to calculate confidence intervals and 1-sample and 2-sample tests for mean crowding. All methods described in this study are supported by the freely distributed statistical software Quantitative Parasitology.

Original languageEnglish
Pages (from-to)245-252
Number of pages8
JournalJournal of Parasitology
Volume91
Issue number2
DOIs
Publication statusPublished - Apr 2005

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Crowding
parasite
Parasites
parasites
parasitology
confidence interval
Parasitology
life history
statistical analysis
software
sampling
Population
index
Software
Confidence Intervals
testing
method
methodology

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Parasitology
  • Microbiology

Cite this

Properties of crowding indices and statistical tools to analyze parasite crowding data. / Reiczigel, J.; Lang, Zsolt; Rózsa, L.; Tóthmérész, B.

In: Journal of Parasitology, Vol. 91, No. 2, 04.2005, p. 245-252.

Research output: Contribution to journalArticle

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