Table 1. Stomach contents of Leiocephalus semilineatus, L. schreibersii, and Ameiva lineolata from the Puerto Alejandro and Baní study sites. N = total number of items of a particular type, V = total volume of those items in cm3, F = frequency of occurrence (the number of individuals in which the item was found), and IV = the calculated importance value of the prey type (larger numbers indicate more important dietary components). Importance values and volumes are rounded to the nearest 0.001.
| Species | L. semilineatus (n = 23) | L. schreibersii (n = 19) | L. semilineatus (n = 40) | A. lineolata (n = 37) | ||||||||||||
| Location |
Puerto Alejandro |
Puerto Alejandro |
Baní |
Baní |
||||||||||||
| Stomach contents |
N |
V |
F |
IV |
N |
V |
F |
IV |
N |
V |
F |
IV |
N |
V |
F |
IV |
|
Arachnida (Araneae) |
26 |
0.108 |
10 |
0.105 |
10 |
0.058 |
8 |
0.056 |
42 |
0.166 |
12 |
0.083 |
42 |
0.264 |
16 |
0.243 |
|
Arachnida (other) |
1 |
0.001 |
1 |
0.005 |
0 |
0 |
0 |
0 |
4 |
0.009 |
4 |
0.010 |
2 |
0.006 |
2 |
0.016 |
|
Chilopoda |
2 |
0.041 |
2 |
0.028 |
0 |
0 |
0 |
0 |
3 |
0.038 |
3 |
0.015 |
1 |
0.030 |
1 |
0.014 |
|
Coleoptera |
9 |
0.021 |
3 |
0.027 |
10 |
0.051 |
7 |
0.049 |
29 |
0.085 |
20 |
0.077 |
7 |
0.043 |
7 |
0.059 |
|
Coleoptera larvae |
40 |
0.140 |
16 |
0.152 |
43 |
0.184 |
11 |
0.123 |
16 |
0.054 |
7 |
0.035 |
1 |
0.001 |
1 |
0.007 |
|
Dictyoptera |
3 |
0.043 |
3 |
0.033 |
2 |
0.020 |
2 |
0.016 |
9 |
0.056 |
5 |
0.027 |
2 |
0.003 |
0 |
0.016 |
|
Diptera |
2 |
0.004 |
2 |
0.010 |
3 |
0.015 |
2 |
0.014 |
2 |
0.010 |
2 |
0.007 |
2 |
0.003 |
2 |
0.015 |
|
Diptera larvae |
0 |
0 |
0 |
0 |
4 |
0.013 |
2 |
0.014 |
2 |
0.006 |
2 |
0.007 |
1 |
0.015 |
1 |
0.010 |
|
Hemiptera |
2 |
0.003 |
2 |
0.010 |
9 |
0.029 |
8 |
0.046 |
18 |
0.066 |
8 |
0.041 |
8 |
0.071 |
7 |
0.068 |
|
Homoptera |
2 |
0.003 |
2 |
0.010 |
0 |
0 |
0 |
0 |
3 |
0.010 |
3 |
0.010 |
1 |
0.001 |
1 |
0.007 |
|
Hymenoptera (Formicidae) |
315 |
0.200 |
21 |
0.407 |
719 |
0.219 |
19 |
0.437 |
271 |
0.154 |
27 |
0.264 |
5 |
0.011 |
2 |
0.025 |
|
Hymenoptera (other) |
0 |
0 |
0 |
0 |
10 |
0.178 |
4 |
0.079 |
3 |
0.041 |
3 |
0.016 |
2 |
0.015 |
2 |
0.017 |
|
Isoptera |
1 |
0.003 |
1 |
0.006 |
0 |
0 |
0 |
0 |
50 |
0.025 |
6 |
0.050 |
9 |
0.010 |
1 |
0.031 |
|
Lepidoptera |
3 |
0.043 |
3 |
0.033 |
3 |
0.045 |
2 |
0.024 |
1 |
0.005 |
1 |
0.004 |
0 |
0 |
0 |
0 |
|
Lepidoptera larvae |
14 |
0.080 |
11 |
0.087 |
4 |
0.030 |
4 |
0.042 |
5 |
0.260 |
4 |
0.057 |
12 |
0.403 |
10 |
0.166 |
|
Neuroptera |
2 |
0.004 |
2 |
0.010 |
0 |
0 |
0 |
0 |
2 |
0.011 |
2 |
0.008 |
0 |
0 |
0 |
0 |
|
Odonata |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0.001 |
1 |
0.010 |
|
Orthoptera (Acridae) |
2 |
0.004 |
2 |
0.010 |
2 |
0.060 |
2 |
0.029 |
13 |
0.780 |
10 |
0.166 |
10 |
0.540 |
9 |
0.187 |
|
Misc. arthropod material |
2 |
0.003 |
2 |
0.010 |
1 |
0.001 |
1 |
0.005 |
11 |
0.045 |
11 |
0.039 |
8 |
0.041 |
8 |
0.066 |
|
Egg sac/case |
0 |
0 |
0 |
0 |
1 |
0.025 |
1 |
0.013 |
0 |
0 |
0 |
0 |
3 |
0.020 |
1 |
0.017 |
|
Gastropoda |
1 |
0.001 |
1 |
0.006 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0.005 |
1 |
0.008 |
|
Flowers |
0 |
0 |
0 |
0 |
1 |
0.015 |
1 |
0.009 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|
Fruits/seeds |
3 |
0.013 |
3 |
0.019 |
1 |
0.001 |
1 |
0.005 |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
|
Plant (other) |
1 |
0.003 |
1 |
0.006 |
0 | 0 | 0 | 0 |
8 |
0.050 |
8 |
0.031 |
1 |
0.005 |
1 |
0.008 |
|
Grit |
6 |
0.008 |
6 |
0.029 |
9 |
0.009 |
5 |
0.027 |
6 |
0.008 |
6 |
0.018 |
2 |
0.003 |
2 |
0.015 |
|
Shed skin |
0 | 0 | 0 | 0 |
2 |
0.060 |
2 |
0.029 |
9 |
0.034 |
9 |
0.031 |
0 | 0 | 0 | 0 |