Ecological implications of condensed tannin structure: A case study

  title={Ecological implications of condensed tannin structure: A case study},
  author={Thomas P. Clausen and Frederick D. Provenza and Elizabeth A. Burritt and Paul B. Reichardt and John P. Bryant},
  journal={Journal of Chemical Ecology},
Condensed tannins were isolated from bitterbnish (Purshia tridentata) and blackbrush (Coleogyne ramosissima). Structural analyses showed that both tannins were procyanidins of similar polymer length. The overall stereochemistries at C-3 and C-4, however, differed between the two tannins. These changes in stereochemistry resulted in blackbrush tannins being less preferred than bitterbrush tannins when offered to snowshoe hares (Lepus americanus). It is unlikely that differences in protein… CONTINUE READING
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