Application of three approaches to evaluate abundance and rarity in a sand grassland community

G. Fekete, Z. Tuba, I. Precsenyi

Research output: Contribution to journalArticle

7 Citations (Scopus)


This paper gives an account of causal analyses of populations, which are sharply different in relative abundances in the perennial drought limited sand grassland Festucetum vaginatae. Three approaches were pursued: sociological, based on spatial associations between species-pairs to find species sensitive or indifferent to the common ecological factors extracted by factor analysis; "traditional', rooted in niche theory using the parameters of niche width, and overlap between species in pairs and multiplets; and experimental, involving investigations on the physiological tolerance and adaptation mechanisms of populations to interpret results obtained by approaches 1 and 2. The authors found a positive relationship between abundance niche width. The dominant species, Festuca vaginata, has the largest niche width and highest average overlap value. Regarding the role of species in niche space measurements concerning photosynthesis ecology and biochemistry indicate that the rank order of species based on mesophyll succulence is informative. -from Authors

Original languageEnglish
Pages (from-to)29-38
Number of pages10
Issue number1
Publication statusPublished - Jan 1 1995

ASJC Scopus subject areas

  • Ecology

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