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Social Parasite Exposure and Nest Hygiene in Acorn Ants
Ist Teil von
Journal of insect behavior, 2023-03, Vol.36 (1), p.52-58
Ort / Verlag
New York: Springer US
Erscheinungsjahr
2023
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Antagonistic interactions impose pressures that can trigger shifts in defensive phenotypes. For instance, one natural enemy may activate defensive phenotypes that influence defenses that protect against other enemies. Socially parasitic ants (
Temnothorax americanus
) are both parasites and predators of other coevolved
Temnothorax
species, whose brood they either consume as prey or steal during raids to utilize as a work force in their own colonies. Since these social parasites impose a significant threat to host colonies, we explored whether exposing a
T. americanus
worker to
T. curvispinosus
host colonies could impact nest hygiene behavior, a component of collective disease defense. Specifically, we measured the latency to remove colony-mate corpses from the nest. We measured corpse removal twice before and twice after exposure to a
T. americanus
worker collected in sympatry to the focal host colonies. We found that simulating the initial stage of a scout raid had no effect on this measure of collective nest hygiene. These results indicate that some measures of social immunity may remain robust after a potentially stressful antagonistic interaction from a coevolved heterospecific.