XIV

• Nearctic ecoregions‎ (5 C, 113 P)
• Nearctic realm biota‎ (10 C)

C

• Ecozones of Canada‎ (3 C, 13 P)

D

• Deserts and xeric shrublands in the United States‎ (9 C, 26 P)

M

• Madrean Region‎ (6 C, 15 P)
• Mediterranean forests, woodlands, and scrub in the United States‎ (1 C, 4 P)

P

• Plant communities of the United States‎ (2 C)

T

• Temperate broadleaf and mixed forests in Canada‎ (1 C, 17 P)
• Temperate broadleaf and mixed forests in the United States‎ (1 C, 38 P)

• Nearctic realm

C

• Canadian Arctic tundra

S

• Ecology of the Sierra Nevada

T

• Tundra