Like a peacemaking hero, this plant has developed a conflict-reduction mechanism to prevent these erratic arguments between ants. The solution it devises is: physical separation. In a study published in the journal Science, researchers from Durham University shared a dramatic episode that unfolds between this plant and the ants. This conciliatory plant, named Squamellaria, has developed an extraordinary strategy to deal with the conflicts that erupt between these aggressive ants from time to time, as a team of researchers reported in the study.
“This study unveils how multipartner symbioses between aggressive insect partners can be stable,” Professor Guillaume Chomicki from the Biosciences department of Durham University wrote in a press release, adding, “Our study shows that compartmentalization is one solution.” Squamellaria belongs to a plant genus that is mostly epiphytic, which means its roots are not attached to the ground. Instead, they cling to other plants and tree trunks to attach their roots and grow from there. Once they have settled their roots into another plant, they move on to start a business of real estate, because they need a constant nutrient supply.
Like a skilled architect, this plant constructs assorted structures and apartments in its body where ants can take up residence. The plant hits the core fear of survival in the ants and lures them to stay inside its compartments, so it can feed on the nutrients they bring along. In 2014, Chomicki cut open one of these tuber plants in Fiji and was stunned to find colonies of ants secretly living inside Squamellaria. He sent some plant samples to a laboratory in Munich and mapped their interiors in 3D with noninvasive CT scans.
Threatened by harsh climate and wildlife, the ants in this rainforest are always searching for homes. Though Squamellaria builds assorted structures which are primarily for its personal feeding purpose, this tactic ends up preventing dramatic conflicts arising from the fierce competition among ants. This symbiotic partnership between the plant and the ants through "ant apartments" paves the way for concord.
The researchers combined isotope labelling, computed tomography, behavioral field experiments, and 3D mathematical models to explore the innards of the Squamellaria plant. What they discovered was no less than fascinating. The plant, they observed, hosted a morass of nesting sites called “domatia” divided into compartments with separate entrances. “It’s like multiple apartments with separate entrances,” Chomicki described to the New York Times.
Picture two estranged neighbors who live in the same building but don’t get along with each other. With an intelligent architecture of the building’s interiors, both of them can live separately in peace. What this plant does is akin to this intelligent architecture, nothing short of remarkable. It carves out a real estate that would enable the rival ant colonies to live in harmony.
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