This study examined the patterns of distribution of temperate vines in two deciduous wood lots in eastern Iowa. The vine species observed included Smilax rotundifolia (greenbriar), Rhus radicans (poison ivy), Vitus cinerea (wild grape), and Parthenocissus quiquefolia (Virginia creeper). All trees greater than one centimeter in diameter at breast height (dbh) were observed for the presence of vines. When a vine was detected, the diameter of the host tree and its species identity were recorded along with the vine species. Results indicated that greenbriar and wild grape were distributed randomly within these two forests with respect to host tree size, but non-randomly with respect to tree species frequency. Poison ivy and Virginia creeper displayed non-random patterns of distribution with respect to both tree size and tree species frequency.
Ronda Wilson, ’98
Sponsor: Robert Black