Scale Expansion of Community Investigations and Integration of the Effects of Abiotic and Biotic Processes on Maintenance of Species Diversity
Table 3
Parameters reflecting the measures of filter processes in successional-stage species pools.
Successional stage pool
AEI
APMO
AEME
APLO
ACKV
F-value
P value
Species richnessa
Tree
2.98
0.040*
Shrub
2.43
0.006**
Herb
3.15
0.005**
Plant density (stem·m−2)
Tree
11.70
0.001***
Shrub
2.46
0.003**
Herb
3.72
0.001***
Above-ground biomass of herb plants (kg·m−2)
3.05
0.002**
aSpecies richness, plant density, and biomass are expressed as μ± s.d. Species richness is the number of plant species in the plots, and the number of different species in each successional stage for the calculation of the effect of species pools, , are 152 (AEI), 132 (APMO), 143 (AEME), 151 (APLO), and 142 (ACKV). *, **, ***Significantly different among succession stages at α levels of 0.05, 0.01, and 0.001, respectively.