3.1 Community diversity
A total of 1179 small mammal individuals were captured in our study,
belonging to 30 species (Appendix), including 17 glire species
(accounting for 56.7%) and 13 insectivore species (43.3%). The
rarefaction curves showed that our survey results adequately represented
the small mammal diversity in each forest type (Fig. 2). At the
landscape scale, 28, 24 and 27 small mammal species
were
recorded in the primary, secondary and plantation forests, respectively.
Two species (Niviventer andersoni and Berylmys bowersi )
were recorded only in the primary forests, Chodsigoa lamula was
recorded only in the secondary forests, and Scaptonyx fusicauduswas the unique species sampled in the plantation forests (Appendix). All
17 glire species were recorded in the primary forests, accounting for
60.7% of the primary forest species. Thirteen glire species were
recorded in the secondary forests, accounting for 54.1% of secondary
forest species, while 15 glire species were recorded in the plantation
forests, accounting for 55.6% of plantation forest species. There was
no difference in the ratio of glire species among the three forest types
(chi-squared test, χ2 =.259, df =2,
p=0.879). In addition, FD and PD were highest in the primary forests,
followed by the plantation forests and secondary forests (Fig. 3). At
the site scale, the TD, FD and PD at the plantation forest sites were
significantly lower than those at the primary forest sites (one-way
ANOVA: df =2, p=0.003; Kruskal-Wallis Test: df =2, p=0.046;
and one way ANOVA: df =2, p=0.043, respectively), and there was no
significant difference in TD, FD or PD between the secondary and primary
forest sites (Fig. 3). In addition, NMDS ordinations of species
assemblage showed that community composition of small mammals was
similar among the three forest types (Fig. 4).