First Peoples' knowledge leads scientists to reveal 'fairy circles' and termite linyji are linked in Australia

Integrating Australian Aboriginal art and narratives with soil excavation data suggests that the regularly spaced bare circles in Australian arid grasslands (sometimes known as 'fairy circles') are in fact linyji or mingkirri, termite pavement nests used by Aboriginal people for domestic and sacred purposes over generations. In the past, when scientists encountered and studied 'new' environmental phenomena, they rarely considered the existing knowledge of First Peoples (also known as Indigenous or Aboriginal people). The scientific debate over the regularly spaced bare patches (so-called fairy circles) in arid grasslands of Australian deserts is a case in point. Previous researchers used remote sensing, numerical modelling, aerial images and field observations to propose that fairy circles arise from plant self-organization. Here we present Australian Aboriginal art and narratives, and soil excavation data, that suggest these regularly spaced, bare and hard circles in grasslands are pavement nests occupied by Drepanotermes harvester termites. These circles, called linyji (Manyjilyjarra language) or mingkirri (Warlpiri language), have been used by Aboriginal people in their food economies and for other domestic and sacred purposes across generations. Knowledge of the linyji has been encoded in demonstration and oral transmission, ritual art and ceremony and other media. While the exact origins of the bare circles are unclear, being buried in deep time and Jukurrpa, termites need to be incorporated as key players in a larger system of interactions between soil, water and grass. Ecologically transformative feedbacks across millennia of land use and manipulation by Aboriginal people must be accounted for. We argue that the co-production of knowledge can both improve the care and management of those systems and support intergenerational learning within and across diverse cultures.

Automated summary

Integrating Australian Aboriginal art and narratives with soil excavation data suggests that the regularly spaced bare circles in Australian arid grasslands (fairy circles) are actually termite nests used for domestic and sacred purposes by Aboriginal people. This finding highlights the importance of incorporating Indigenous knowledge in scientific research on environmental phenomena. The co-production of knowledge between different cultures can enhance the care and management of ecosystems while supporting intergenerational learning.