Intraguild Predation in Oregon Ground Beetles

Simply put, intraguild predation is the killing and eating of potential competitors. It is a combination of predation and competition because both species involved rely on the same prey resources and therefore benefit from preying upon one another.

In the video below you can see an Omus audouini dragging off an Anisodactylus binotatus. It is clearly a case of predation and not scavenging as the A. binotatus is alive and trying to get away. Both beetles were discovered under one of my snake study boards along the riparian border on the north side of my tall fescue field. The O. audouini is commonly called Audouin’s Night-stalking Tiger Beetle and he’s a fierce predator.

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