Table 3 Shannon-Wiener diversity index ( H ’), species richness ( S ), rare species ( RS ) and coefficient of variation (CV) of S and RS (in parentheses); and biomass ( W ) mg DW/m ² (standard error in parentheses) of canopy arthropods associated to Quercus crassipes and Q. rugosa in four localities in the Mexican Valley

Q. crassipes

PNECh

5.0^A

224 (10.11)^a

173 (10.20)^a

427.63 (0.042)^a

PECM

4.4^B

202 (6.17)^a

165 (7.39)^a

338.15 (0.054)^ab

Jilotepec

3.8^C

183 (9.43)^a

124 (12.48)^b

490.29 (0.020)^b

Juchitepec

3.0^D

162 (6.57)^b

113 (12.26)^c

984.75 (0.040)^c

Q. rugosa

PNECh

4.6^A

165 (8.71)^a

127 (8.38)^a

200.92 (0.053)^a

PECM

4.0^B

158 (6.09)^ab

119 (9.86)^b

282.89 (0.027)^b

Jilotepec

3.5^B

153 (5.05)^b

105 (12.68)^c

354.19 (0.042)^bc

Juchitepec

2.7^C

117 (9.43)^c

87 (13.36)^c

415.61 (0.027)^c