Table 1 Mangrove crab species analyzed in the current study and their major diet content reported in previous studies. A lower trophic position reflects a higher dietary proportion of primary producers and a tendency of herbivory, while a higher trophic position reflects a tendency of predation or microbivory [81]

Herbivore

Sesarmidae

Clistocoeloma villosum

Mangrove litter, suspended organic matter^#

[88]

Episesarma versicolor

Detritus, bark or root, leaf, algae

1.9 ± 0.2

[80, 89]

Fasciarma fasiatum

Plant, organic matter, animal matter^#

-

Orisarma dehaani

Plant, organic matter, animal matter

[90]

Orisarma intermedium

Leaf litter, diatoms

[91]

Orisarma sinensis

Leaf litter, diatoms^#

[91]

Parasesarma affine

Leaf litter, diatoms

2.1 ± 0.3

[91]

Parasesarma continentale

Algae, leaf litter

1.8 ± 0.2

[92]

Detritivore

Macrophthalmidae

Macrophthalmus definitus

Sediment organic material

1.6 ± 0.2^*

[93]

Mictyridae

Mictyris brevidactylus

Sediment organic material

[94]

Ocypodidae

Gelasimus borealis

Microphytobenthos, microheterotrophs, bacteria, detrital matter

1.9 ± 0.2

[95]

Paraleptuca splendida

Microphytobenthos, microheterotrophs, bacteria, detrital matter

2.3 ± 0.3

[95]

Tubuca arcuata

Microphytobenthos, microheterotrophs, bacteria, detrital matter

[95]

Varunidae

Metaplax longipes

Detritus, bark or root, sand, algae^#

2.4 ± 0.3

[89]

Metaplax tredecim

Detritus, bark or root, sand, algae

2.4 ± 0.3^*

[89]

Omnivore

Grapsidae

Metopograpsus frontalis

Algae, leaf litter, crabs, gastropods, fish

2.3 ± 0.3^*

[92]

Ocypodidae

Ocypode ceratophthalmus

Sediment organic material, animal carrion

[96]

Varunidae

Hemigrapsus penicillatus

Bivalves, algae, gastropods, crustaceans, polychaetes^#

[97]

Xanthidae

Etisus laevimanus

Algae

[98]

Leptodius affinis

Algae

[98]

Carnivore

Oziidae

Epixanthus frontalis

Crabs, gastropods^#

[72]

Portunidae

Scylla paramamosain

Fish, mollusks, fish, shrimp

[70]

Thranita danae

Bivalves, gastropods, crabs, algae^#

[71]