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Table 2 Numbers, sex ratio and DBH of T. nucifera trees in the three quadrats (160 × 300 m)

From: Spatial distribution patterns of old-growth forest of dioecious tree Torreya nucifera in rocky Gotjawal terrain of Jeju Island, South Korea

  Sex Sex ratio Density Mean DBH (cm)
Males Females
Quadrat A
 DBH Small 31 31 0.62 *** 63.5 62.5 ± 18.3
Large 158 85
Quadrat B
 DBH Small 72 89 0.53 NS 99.4 54.1 ± 15.7
Large 181 135
Quadrat C
 DBH Small 129 101 0.48 NS 84.8 42.1 ± 21.6
Large 65 112
  1. Sex ratio = male/(male + female); Density = trees/ha; DBH, Small = DBH < 50 cm, Large = DBH ≥ 50 cm
  2. *** P < 0.0001; NS not significant