Segregation of Tilia cordata and T. platyphyllos (malvaceae) along environmental gradients

C. Barker, M. Ashton, P. A. Ashton*

*Corresponding author for this work

Research output: Contribution to journalArticle (journal)peer-review

3 Citations (Scopus)


Closely related congeneric species living in sympatry raises the question of how they are separated along abiotic and biotic axes. Within northern Europe, Tilia cordata and Tilia platyphyllos are two such species. They are large, long-lived trees, often dominant members of their community, and frequently grow sympatrically. This study measured a series of edaphic and topographic variables across a number of sites and examined these via univariate and multivariate approaches to understand how the two species differed. This showed that T. cordata occupies soil with significantly greater organic carbon content and is present in areas with greater potential incident solar radiation. There was no significant difference between the two species across soil depths, acidity, moisture content or elevation above sea level. T. cordata is the more variable of the two species with regard to soil pH and soil moisture content. This is the first comprehensive account of these characters for the two species. The quantitative values obtained in this study are broadly commensurate with descriptive accounts from the literature. However, contrary to previous descriptions, no difference was observed in pH between the two species and soil nutrient levels were the inverse of those expected. This study presents potentially fruitful areas for examining potential niche separation between the two species alongside potential differences in litter leaf chemistry.

Original languageEnglish
Pages (from-to)156-162
Number of pages7
JournalNew Journal of Botany
Issue number3
Publication statusPublished - 11 Mar 2016


  • Abiotic
  • Congeneric
  • Edaphic
  • Niche separation


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