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Kleptoparasitism in Micrurus mipartitus (Squamata, Elapidae) competing for the same Caecilia sp. (Gymnophiona, Caeciliidae) in western Colombia
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Kleptoparasitism in Micrurus mipartitus (Squamata, Elapidae) competing for the same Caecilia sp. (Gymnophiona, Caeciliidae) in western Colombia
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Kleptoparasitism in Micrurus mipartitus (Squamata, Elapidae) competing for the same Caecilia sp. (Gymnophiona, Caeciliidae) in western Colombia
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Journal Article
Kleptoparasitism in Micrurus mipartitus (Squamata, Elapidae) competing for the same Caecilia sp. (Gymnophiona, Caeciliidae) in western Colombia
2024
Overview
Kleptoparasitism, or food theft, is seldom reported in wild populations of snakes. Here, we describe as case where two Red-tailed Coral Snakes, Micrurus mipartitus , were observed competing for the same caecilian prey, either Caecilia leucocephala or C. perdita . This took place at night in a rainforest habitat in Valle del Cauca Department, western Colombia. Upon our arrival, the battle had already started as the two coral snakes kept bite-holds on the caecilian. They continued biting the prey at different places on the anterior parts and tugging in opposite directions. The snakes also made rotations along the longitudinal axis as they maintained their bite-holds. Surprisingly, one snake also bit the body of the other snake once. After 17 minutes of observation, the losing coral snake released its bite-hold on the caecilian. The winner then moved away from the losing snake which did not follow. It is well-known that M. mipartitus and other coral snakes eat caecilians, but this is the first observation of kleptoparasitism in elapid snakes in the wild. It is considered likely that they rely on chemoreception when detecting caecilians, notably in this case as two coral snakes detected the same prey item. In general, kleptoparasitism may occur more frequently amongst snakes than indicated by the very few published cases considering that numerous cases from captivity are known.
