Insect behaviour: Arboreal ants build traps to capture prey

@article{Dejean2005InsectBA,
  title={Insect behaviour: Arboreal ants build traps to capture prey},
  author={Alain Dejean and Pascal Jean Solano and Julien F. Ayroles and Bruno Corbara and J{\'e}r{\^o}me Orivel},
  journal={Nature},
  year={2005},
  volume={434},
  pages={973-973}
}
To meet their need for nitrogen in the restricted foraging environment provided by their host plants, some arboreal ants deploy group ambush tactics in order to capture flying and jumping prey that might otherwise escape. Here we show that the ant Allomerus decemarticulatus uses hair from the host plant's stem, which it cuts and binds together with a purpose-grown fungal mycelium, to build a spongy ‘galleried’ platform for trapping much larger insects. Ants beneath the platform reach through… 

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References

SHOWING 1-5 OF 5 REFERENCES

Coordinated group ambush: A new predatory behavior inAzteca ants (Dolichoderinae)

A new technique used by ants (Azteca cf. lanuginosa) in the Brazilian Cerrado to capture large mobile insects, most of them being two times longer than the ants.

The role of resource imbalances in the evolutionary ecology of tropical arboreal ants

Dietary ratios of CHO:protein play an important and previously unrecognized role in the ecology and evolution of ants generally and modifications of worker digestive systems in certain ant sub-families and genera represent key innovations for handling and processing large volumes of liquid food.

Balancing between mutualism and exploitation: the symbiotic interaction between Lasius ants and aphids

Ants not only attended their aphid partners, but also preyed on them, and the average predation rate increased eightfold when ants were offered the alternative of sugar, whereas alternative prey had no significant effect.

Tetraponera ants have gut symbionts related to nitrogen–fixing root–nodule bacteria

It is argued that pouch bacteria have been repeatedly ‘domesticated’ by the ants as nitrogen–recycling endosymbionts, the first finding of symbionts related to root–nodule bacteria in animals.

Protective ant-plant interactions as model systems in ecological and evolutionary research.

Protective ant-plant interactions, important in both temperate and tropical communities, are increasingly used to study a wide range of phenomena of general interest and offer rich material for studying ant social evolution in novel contexts.