, Volume 124, Issue 1, pp 39–43

Quantitative analysis of acorn transportation by rodents using magnetic locator

  • Shigeo Iida

DOI: 10.1007/BF00045142

Cite this article as:
Iida, S. Vegetatio (1996) 124: 39. doi:10.1007/BF00045142


Transported distance and mortality of acorns scattered by rodents were investigated with magnets inserted into acorns (40 of Quercus serrata and 20 of Quercus acutissima) and a magnetic locator in a natural forest stand. All the treated acorns were transported, and 60% of them were discovered again with a magnetic locator from autumn to the next spring. Most transported acorns suffered predation within one month after the start of the experiment. Several acorns were rehoarded at least two or three times. Average transported distance of scattered acorns was 22.1±8.9 m (max=38.5 m) and the survival rate was 3.0%. The magnet method is one of the most effective methods for tracking acorns through the winter.

Key words

AcornMagnetic locatorOgawa Forest ReserveQuercus acutissimaQuercus serrataRodentSeed dispersal

Copyright information

© Kluwer Academic Publishers 1996

Authors and Affiliations

  • Shigeo Iida
    • 1
  1. 1.Forestry and Forest Products Research InstituteIbarakiJapan