Table 1 Carbon and nitrogen isotopic ratios δ¹³C and δ¹⁵N) of potential food resources for Scapteriscus didactylus. Plant and animal materials were sampled on the Awala-Yalimapo beach from March to July and February; at the habitation site, potential food resources of the mole cricket were chosen from food cooked by the inhabitants. SD = standard deviation, n = number of measures, nd = not detectable, na = not available

Terrestrial food

Gramineae sp. roots

11

3.08

2.07

-15.58

5.07

Dicotyledons roots

   Ipomoeae pes-caprae

13

6.49

2.70

-25.70

1.64

   Ipomoeae stolonifera

13

4.12

2.00

-26.91

1.31

Rice

3

2.27

0.04

-28.00

0.08

Cassava

5

nd

na

-25.74

0.38

Chicken meat

1

2.41

na

-20.39

na

Marine food

Marine catfish

2

13.23

0.21

-14.55

0.12

Yolk of turtle eggs

4

10.53

0.14

-22.58

0.56

Albumin of turtle eggs

9

10.10

0.25

-16.57

0.42