Fig 1.
(A) Houwan; (B) Qingwashi; (C) Gangkou.
Fig 2.
Shield length and palm length of a hermit crab (C. rugosus).
Fig 3.
Relative numbers (% of total numbers captured for this study) of species of terrestrial hermit crab during April, July, October, 2017, and January, 2018.
Significance of differences as tested by χ2-Test are given in Table 1.
Table 1.
Differences between species in the seasonal activity (April, July, October, 2017, and January 2018).
P = probability (χ2-test).
Table 2.
Differences in horizontal distance from the shore for three terrestrial hermit crab species (basis: 50 and 100 meters).
P = probability (χ2-test).
Fig 4.
Distribution of three terrestrial hermit crab species in terms of distance from the shore.
Widths of ovals indicated approximate ranges.
Table 3.
Differences in families of shells preferred by the three species in the overlapping body size range of 0.7–1.3 cm shield length.
Entries are ordered according to highest percentage for each species. The same color represents the same family of shells.
Table 4.
Differences in shell preference of three species of terrestrial hermit crabs with overlapping body size (0.7–1.3 cm, shield length) and differences in shell size P = probability (Mann-Whitney test).
Table 5.
Differences in dietary preferences of three terrestrial hermit crab species P = probability (Fisher’s exact test).
Fig 5.
C. brevimanus preying on C. rugosus (in situ photograph).
(a): C. brevimanus showing predatory and bubble blowing behavior; (b): Forcing C. rugosus out using the right chela; (c): C. rugosus being eaten (the abdomen is displayed); (d): Only the shell remains after one hour.