Indigenous Knowledge and Camera Traps Reveal Secret Life of the Mishmi Takin

Deep in the Mishmi Hills of Arunachal Pradesh, where steep altitudinal gradients rise from subtropical river valleys to alpine meadows above 4,500 metres, one of India’s least studied mountain ungulates has been quietly revealing its secrets. The Mishmi Takin (Budorcas taxicolor taxicolor), a large-bodied caprine endemic to the Eastern Himalaya and restricted in India to Arunachal Pradesh, is listed as Vulnerable on the IUCN Red List, protected under Schedule I of the Indian Wildlife (Protection) Act 1972, and placed in Appendix I of CITES. Yet its ecology has remained largely unknown because the rugged terrain, remoteness, harsh climatic conditions and low detectability of its habitat have frustrated conventional ecological monitoring. A new study published in Frontiers in Conservation Science demonstrates that the key to understanding this elusive species was held all along by the indigenous communities who share its landscape.

Between June 2021 and September 2023, researchers from the Wildlife Institute of India documented traditional ecological knowledge, or TEK, from 114 respondents across the Idu Mishmi, Digaru Mishmi, Miju Mishmi and Meyor communities in the Dibang Valley and Anjaw districts. Using key informant surveys that combined semi-structured formal and informal interviews, the team recorded observations of habitat use, seasonal migration, congregation sites, group structure, feeding ecology, behaviour and perceived threats. Respondents included experienced active and non-active hunters, elders, shamans known locally as Igu, and forest dwellers from different age groups. Before each interview, village heads known as Gaon-buras and all participants gave verbal informed consent, and species identification was verified by showing respondents standardised photographs of the Mishmi Takin alongside similar mountain ungulates such as the Himalayan Serow, Goral and Blue Sheep.

What makes this study remarkable is not merely the documentation of indigenous knowledge but its systematic integration with rigorous scientific validation. The researchers deployed 118 camera traps at critical sites identified through TEK, including salt licks, congregation sites, migratory routes and sighting locations, generating more than 17,000 independent photographic captures of the Mishmi Takin over approximately 90 trap days. Direct observations from vantage points overlooking congregation areas complemented the camera trap data. The convergence of these independent evidence streams is striking: community-derived ecological observations consistently matched the patterns revealed by camera trapping and field expeditions, validating key observations of habitat use, identifying critical congregation sites and confirming seasonal aggregations.

The ecological picture that emerged is one of precise seasonal vertical migration. Respondents from the Digaru, Meyor and Miju Mishmi tribes unanimously reported that Takin migrate seasonally, with 100 percent affirmative responses, while approximately 89 percent of Idu respondents agreed. During spring, observations were recorded entirely from jungle habitats, indicating that Takin remain within forested cover while browsing and gradually moving upward. During the rainy season, records were distributed across multiple habitats, with approximately 43 percent in high-altitude areas, 23 percent at salt lick sites, 12 percent in near-village habitats and 8 percent in jungle habitats. In autumn, records were divided roughly equally between near-village and high-altitude habitats, suggesting movement through transitional landscapes during descent. Winter sightings were concentrated in high-altitude habitats at around 45 percent, followed by near-village habitat at 28 percent and jungle at 23 percent, showing that Takin descend towards lower elevations and village forests while still maintaining some use of higher habitats.

Among the most significant findings is the identification of salt licks, referred to locally as Aheko by the Idu Mishmi, as critical ecological features. Six major congregation sites were identified within Dibang Valley district, typically located at elevations between approximately 3,500 and 4,500 metres and characterised by open alpine meadows, sedge-dominated grasslands, patchy alpine scrub and the presence of mineral-rich soils or sulphur-rich springs. Direct observations showed that more than 500 individuals could occur simultaneously within some congregation areas during the rainy season from June to early September, with individual social groups generally comprising approximately 18 to 50 individuals. Respondent-reported congregation sizes ranged from approximately 600 to 2,000 individuals at seasonal congregation sites, treated as community-based observational estimates rather than direct population counts. In contrast, respondents from Anjaw district reported fewer large congregation sites, with sightings primarily concentrated in high-altitude forests rather than discrete salt lick locations, and some respondents reported that congregation at certain sites is connected to moon phase.

The congregational events play a critical role in the life cycle of the species. Ocular observations documented incidents of rutting and mating as well as lactating behaviours at these sites, which function as mating, grazing and rutting grounds while fulfilling the nutritional demands of the long vertical migration. Foraging observations indicated a mixed-feeding pattern, with Takin grazing on various grasses in congregation sites while browsing on bamboo leaf flushes during the day while resting, reflecting a generalist herbivore strategy dependent on seasonal availability. Activity pattern analysis showed that Takin remained active at congregation sites continuously over a 24-hour period as multiple herds arrived and departed throughout the day and night, with peak activity and social interactions predominantly observed during crepuscular periods, although significant nocturnal activity was also recorded, indicating the high utilisation of congregation sites and the importance of salt licks.

To examine the structure of indigenous knowledge itself, the researchers applied multivariate analyses including Principal Component Analysis, Multiple Correspondence Analysis, hierarchical clustering and regression approaches. The PCA biplot showed that the first two principal components accounted for 71.2 percent of total variance, with the first dimension representing effort and scale, capturing sighting remoteness and group size, and the second dimension representing ecological awareness, capturing knowledge richness and threat perception. Knowledge richness score and threat count loaded strongly and positively together, indicating that respondents with higher ecological knowledge also reported more threats, while group size and distance aligned closely, showing larger groups observed at greater distances typical of salt lick and high-altitude habitats. Hierarchical clustering identified four distinct respondent profiles: one characterised by high travel distance and extensive behavioural observations reflecting deep experience, one with high environmental threat knowledge, one with moderate baseline knowledge across all metrics, and one characterised by high group sizes and massive aggregations observed over years of experience.

The analysis of perceived threats revealed significant spatial variation in predator composition. Tiger emerged as the dominant perceived predator in both districts, followed by Bear, Leopard and Dhole, with human-related threats reported less frequently but present in both districts, primarily comprising indigenous hunting. A chi-square test showed a significant association between district and perceived threat composition, with a moderate to strong effect size of Cramér’s V equal to 0.51. The Relative Threat Index highlighted that in Dibang, Tiger was the most dominant threat with an RTI of 0.46, while in Anjaw, Tiger with an RTI of 0.31 and Bear with an RTI of 0.28 together accounted for the highest threat pressure. Reports involving smaller carnivores such as the marbled cat were interpreted as opportunistic predation or scavenging events primarily involving juveniles, subadults or fresh carcasses, based on detailed respondent accounts and species identification verified through standardised photographs.

Conservation perceptions themselves varied between districts, underscoring the socio-cultural complexity of the landscape. In Anjaw, a majority of respondents expressed support for Takin conservation, with 29 responding yes, while 21 reported no need and a smaller group of 7 expressed ambivalent views. In Dibang, responses were more evenly divided, with 17 responding no and 14 responding yes, indicating mixed opinions on the need for conservation in both districts. Respondents also reported increasing human influences including habitat disturbance, changing hunting practices and the gradual loss of traditional cultural values and taboos that historically regulated hunting in the Eastern Himalaya, emphasising that effective conservation planning must consider both ecological and changing socio-cultural conditions that influence human-wildlife relationships.

Beyond the species-specific findings, this study contributes to broader discussions on the role of indigenous knowledge in conservation science. The researchers acknowledge limitations including potential recall bias, differences in landscape exposure among respondents, and the exploratory nature of the hierarchical clustering, while noting that the integration of TEK with ecological surveys nonetheless provides valuable baseline ecological information for the conservation and management of the Mishmi Takin in remote mountain ecosystems. The findings demonstrate that TEK represents a structured knowledge system capable of generating robust ecological information for data-deficient species, and that protecting salt licks, congregation sites and associated movement corridors should be considered a conservation priority. The study presents a replicable framework for conservation research and decision making in remote socio-ecological landscapes, suggesting that effective conservation outcomes in the Eastern Himalaya will depend on recognising indigenous communities as active knowledge holders and conservation partners whose ecological knowledge can strengthen research, monitoring and decision-making for rare wildlife species across the region.

Subject of Research: Integrating traditional ecological knowledge with ecological surveys for conservation of the Mishmi Takin in Eastern Himalaya, India

Article Title: Integrating traditional ecological knowledge with ecological surveys for conservation of the Mishmi Takin in Eastern Himalaya, India

Article References: Gaurav, P. J., Kri, S. K., & Gopi, G. V. (2026). Integrating traditional ecological knowledge with ecological surveys for conservation of the Mishmi Takin in Eastern Himalaya, India. Frontiers in Conservation Science, 7, Article 1901817. https://doi.org/10.3389/fcosc.2026.1901817

Image Credits: AI Generated

DOI: 10.3389/fcosc.2026.1901817

Keywords: Mishmi Takin, traditional ecological knowledge, Eastern Himalaya, Arunachal Pradesh, camera trapping, salt licks, seasonal migration, conservation science, indigenous communities, data-deficient species, Integrating, traditional