Diet and Spatial Pattern of Foraging in Ectatomma opaciventre ...
Diet and Spatial Pattern of Foraging in Ectatomma opaciventre ...
Diet and Spatial Pattern of Foraging in Ectatomma opaciventre ...
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T<strong>of</strong>olo, V.C. et al. — <strong>Spatial</strong> <strong>Pattern</strong> <strong>of</strong> <strong>Forag<strong>in</strong>g</strong> <strong>in</strong> E. <strong>opaciventre</strong><br />
Table 2 . Items collected by foragers <strong>of</strong> <strong>Ectatomma</strong> <strong>opaciventre</strong> <strong>in</strong> the<br />
field. The numbers <strong>in</strong> parentheses represent the relative abundance (%)<br />
<strong>of</strong> the items <strong>in</strong> each group.<br />
Prey Amount (%)<br />
Hymenoptera (55.56%)<br />
Ichneumonidae 1 (2.78)<br />
Formicidae (52.78%)<br />
(Ectatomm<strong>in</strong>ae) <strong>Ectatomma</strong> brunneum 1 (2.78)<br />
(Formic<strong>in</strong>ae) Camponotus rufipes 3 (8.33)<br />
(Dolichoder<strong>in</strong>ae) Conomyrma 5 (13.89)<br />
(Myrmic<strong>in</strong>ae) Pseudomyrmex 5 (13.89)<br />
(Myrmic<strong>in</strong>ae) Pheidole 5 (13.89)<br />
Lepidoptera (5.56%)<br />
Pyralidae 1 (2.78)<br />
Unidentified chrysalis 1 (2.78)<br />
Coleoptera (13.89%)<br />
Mycetophagidae 2 (5.56)<br />
Curculionidae 2 (5.56)<br />
Unidentified 1 (2.78)<br />
Araneae (2.78%)<br />
Salticidae 1 (2.78)<br />
Fragments (13.89%)<br />
Orthoptera 1 (2.78)<br />
Coleoptera 2 (5.56)<br />
Formicidae 2 (5.56)<br />
Grass seeds (8.33%) 3 (8.33)<br />
<strong>and</strong> other <strong>in</strong>vertebrates, liv<strong>in</strong>g or dead, were collected. Some <strong>of</strong> them were<br />
large <strong>and</strong> highly aggressive. Ants, especially Gnamptogenys, Odontomachus,<br />
Pheidole, Azteca, <strong>and</strong> Camponotus, were an important part <strong>of</strong> this diet (Pie<br />
2004; Pratt 1989). The same pattern was reported <strong>in</strong> a study by Giannotti <strong>and</strong><br />
Machado (1992). They recorded 20 types <strong>of</strong> food <strong>of</strong> animal orig<strong>in</strong> (<strong>in</strong>sects<br />
<strong>and</strong> <strong>in</strong>vertebrates) <strong>and</strong> several others <strong>of</strong> vegetal orig<strong>in</strong> (like seeds, pulp, leaves,<br />
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