The study, published in the journal Environmental and Sustainability Indicators, represents a milestone for conservation science in a region where elephant corridors had never before been scientifically delineated. Between 2021 and 2025, the researchers conducted systematic field surveys across all elephant-inhabited districts of Nagaland, georeferencing direct and indirect evidence of elephant presence—dung piles, footprints, feeding marks, trails, sightings and crop-raiding paths—using GPS units, and complementing these observations with structured interviews of Forest Department staff and community members whose families have coexisted with elephants for generations.

Of the eleven corridors identified, nine remain functionally active, while two—the Baghty Valley–Nambor Wildlife Sanctuary corridor and the Sitap Range–Geleki Reserve Forest corridor—have been classified as inactive, with no confirmed elephant movement since the late 1980s and 2015, respectively. The functioning corridors vary enormously in their ecological character. The Intangki National Park–Dhansiri Reserve Forest corridor and the Singphan Wildlife Sanctuary–Abhyapur Reserve Forest corridor support resident elephant populations that move year-round, whereas others serve primarily as seasonal migratory routes, with peak use coinciding with the monsoon (May to August) and winter (October to January) crop-maturation periods. The number of elephants using individual corridors ranges from as few as ten seasonal migrants to between 80 and 100 animals traversing the Longtho Range–Changdang Beat–Hollongpar Gibbon Sanctuary route.

What makes the study particularly compelling is its methodological rigor. To characterize land use around each corridor, the team established a two-kilometer buffer and analyzed the 2024 Land Use/Land Cover dataset derived from high-resolution LISS-IV satellite imagery processed through supervised Maximum Likelihood Classification. To track vegetation change over time, they computed the Normalised Difference Vegetation Index, or NDVI—a remote sensing metric that measures photosynthetically active biomass by comparing near-infrared and red light reflectance—using Landsat 4-5 imagery for 1994 and 2009 and Landsat 8-9 imagery for 2024. Multi-temporal change detection was then performed for three periods: 1994–2009, 2009–2024, and the full 1994–2024 span.

The NDVI results tell a deceptively optimistic story. Between 1994 and 2009, approximately 65 percent of the study area experienced declining vegetation greenness, with 11.8 percent showing strong decline and 53.6 percent moderate decline. But between 2009 and 2024, the trend reversed dramatically: about 53.9 percent of the area showed moderate increases in greenness and 36.7 percent strong increases. Taken at face value, the landscape appears to be recovering. Field verification, however, revealed otherwise. Much of the observed greening corresponds to the expansion and maturation of commercial plantations—rubber, areca nut, teak, tea and agar—rather than the restoration of structurally intact native forests. NDVI, the authors caution, cannot distinguish between a biodiverse tropical forest and a monoculture rubber estate, even though the two offer vastly different ecological value to elephants.

This distinction matters profoundly. Asian elephants are large-bodied mammals with substantial daily foraging requirements, depending on structurally complex forests that provide diverse browse species, seasonal forage and movement cover. Traditional jhum cultivation—the shifting agriculture practiced for centuries by Naga communities—maintained heterogeneous landscape mosaics with fallow cycles that allowed secondary forest regeneration and preserved habitat permeability. The conversion of jhum lands into permanent commercial plantations has fundamentally transformed vegetation structure, diminishing both palatable forage and habitat heterogeneity. Many corridors now consist of structurally simplified, plantation-dominated forests that, despite retaining vegetative cover, offer reduced ecological value for elephant movement.

The consequences of connectivity loss are perhaps starkest in the Baghty Valley. Historically, between 100 and 130 elephants moved through this corridor connecting Wokha district with Nambor Wildlife Sanctuary. Encroachment of Rengma Reserve Forest, rural and urban expansion, high-tension power lines, village roads and small industries severed the route entirely, isolating what is now a resident population of approximately 180 elephants. Trapped within a constrained landscape, these animals have expanded their range into human settlements, generating the region’s most severe human-elephant conflict—affecting 90 villages in Wokha, 11 in Zunheboto, five in Tseminyu and 15 in Mokokchung. The conflict toll there includes 12 human casualties and 21 unofficially recorded elephant deaths over three decades.

Community interviews conducted across the corridor landscapes revealed that the true scale of elephant mortality far exceeds official records. Most deaths were attributed to retaliatory shootings following repeated crop depredation and property damage, with fewer incidents from electrocution and accidental drowning. Because such events often went unreported, official statistics dramatically underestimate both the intensity of conflict and the number of elephants killed. Crop damage emerged as the most prevalent conflict type throughout the network, followed by destruction of plantations and homes, with paddy, rubber, areca nut and banana among the most frequently damaged assets.

Yet the study is not simply a chronicle of decline. In a finding that surprised the researchers, two corridors—Kuhuboto–Bokajan and Doyapur–Daldali—experienced renewed elephant movement in 2023 and 2024 after prolonged inactivity, demonstrating that partially degraded corridors can recover when sufficient structural connectivity persists. Local ecological knowledge offers a possible explanation: elephants appear to maintain culturally transmitted “memory paths” across generations. As one captive elephant owner from the Tuli range told the researchers, “These elephants, like humans, pass down the knowledge… even if the elephants don’t come today, their next kin… will at least come once in the traditional route their forefather once roamed.”

The governance context of Nagaland adds a distinctive dimension to the conservation challenge. Under Article 371(A) of the Indian Constitution, approximately 88 percent of the state’s land is owned by communities, clans or individuals rather than the government. Statutory protection is therefore largely irrelevant to corridor conservation; everything depends on community stewardship. Encouragingly, village councils and community leaders expressed general willingness to designate degraded or conflict-prone forest patches as community conserved areas or reserves—provided the government delivers sustained support through livelihood assistance, timely compensation and long-term conservation incentives. Resistance to elephant conservation, the authors conclude, stems less from opposition to wildlife than from the socio-economic costs of coexistence.

The researchers propose corridor-specific interventions rather than uniform strategies. Recovering corridors such as Kuhuboto–Bokajan and Doyapur–Daldali should be proactively protected before further degradation occurs. Severely fragmented corridors, including Baghty Valley–Nambor and Sitap–Geleki, require active ecological restoration through assisted natural regeneration and enrichment planting of indigenous forage species. The planned reclamation of roughly 1,980 hectares of encroached forest within Rengma Reserve Forest offers a critical opportunity to restore transboundary connectivity for the isolated Baghty elephant population. Regulating coal mining, quarrying and other extractive industries within corridor buffers—currently concentrated in Mon, Longleng, Mokokchung and Wokha districts—constitutes another immediate priority.

Because every identified corridor crosses the Nagaland–Assam boundary, the authors emphasize that coordinated, transboundary governance is essential; conservation efforts implemented independently by either state are unlikely to succeed. Ultimately, the study reframes elephant corridors not as static lines on a map but as dynamic socio-ecological systems where ecological connectivity, indigenous governance and rural livelihoods are inseparably intertwined. With community-led conservation, equitable compensation and landscape-scale planning, Nagaland may yet establish a nationally significant model of decentralised corridor management—one that secures the future of its elephants while sustaining the people who share their forests.

The researchers embarked on a comprehensive study to investigate the effects of traditional coffee farming on the composition and regeneration of indigenous woody species. Their approach combined field surveys, ecological assessments, and community interviews to gather a wealth of data. The team’s findings are both striking and encouraging, indicating that traditional agricultural practices can coexist with the preservation and enhancement of biodiversity. The research emphasizes the intricate relationships between coffee cultivation, local soil health, and the survival of native plant species.

At the core of this study lies an understanding of the agroforestry system practiced by many farmers in the region. Indigenous farmers often cultivate coffee under a canopy of diverse tree species, which not only provides shade but also fosters a microclimate conducive to coffee growth. This method offers numerous environmental benefits, such as soil stabilization, reduced erosion, and increased moisture retention. The researchers discovered that these practices significantly enhance the abundance and diversity of indigenous woody species, leading to a more resilient and productive ecosystem.

One of the key findings from the study highlights the significance of traditional ecological knowledge. Local farmers possess an intimate understanding of their environment, passed down through generations. They strategically select which tree species to maintain in coffee plantations, enhancing biodiversity and promoting ecological harmony. This nuanced approach to farming reflects a deep respect for nature, ensuring that agricultural practices do not come at the expense of ecological integrity. Through this lens, traditional coffee farming emerges as a model of sustainable agriculture.

The implications of this research extend beyond the confines of Ethiopia. As global concerns about biodiversity loss and climate change mount, the study underscores the importance of integrating indigenous practices into broader conservation strategies. The authors argue that recognizing and supporting traditional farming methods could be pivotal in addressing the alarming decline of native ecosystems worldwide. It illustrates how foisting modern agricultural practices onto diverse landscapes can inadvertently lead to ecological degradation.

Furthermore, the study reveals insights into the regeneration capabilities of indigenous woody species. The researchers found that certain species thrive remarkably well in traditional coffee farms, demonstrating their resilience and adaptability. This observation raises critical questions about the role of agrarian systems in promoting regrowth and restoration of indigenous flora. Their findings suggest a need for targeted conservation efforts that support these species, which in turn enhances ecosystem services and agricultural productivity.

The socio-economic aspects of traditional coffee farming also emerged as a crucial part of the research. The study emphasizes that these farming practices provide not only economic benefits to families but also bolster community identity and cultural heritage. As coffee holds a significant place in Ethiopian culture, the preservation of traditional farming systems becomes essential not only for ecological reasons but also for social and cultural continuity. This link between agriculture and cultural roots emphasizes the multifaceted value of traditional practices in a rapidly changing world.

As the global coffee market continues to evolve, the challenges faced by farmers in the Abe Dongoro District serve as a cautionary tale. Climate change poses a significant threat to coffee production, with rising temperatures and unpredictable weather patterns jeopardizing yields. However, the resilience demonstrated in traditional farming practices offers a beacon of hope. By fostering biodiversity, these systems may well mitigate some of the adverse effects of climate change, allowing farmers to adapt and sustain their livelihoods.

The perspective that traditional farming practices can contribute to biodiversity is gaining traction within ecological and agricultural circles. This research serves as a compelling case study that reinforces the value of integrating indigenous knowledge into modern farming practices. The relationship between agricultural systems and ecological health is complex, and findings from Ethiopia contribute to a growing body of evidence that advocates for sustainable models of agriculture that prioritize ecosystem preservation.

The authors call for continued research and investment in traditional coffee farming systems, highlighting the critical need for policies that support local farmers. They urge stakeholders, from policymakers to consumers, to recognize the ecological benefits of traditional practices and to promote fair trade practices that prioritize sustainability. A shift in consumer behavior towards ethically sourced coffee can empower farmers and enhance biodiversity, creating a symbiotic relationship that benefits both agricultural systems and the environment.

In conclusion, as coffee lovers worldwide sip on their favorite brews, they may not realize the intricate ecological story woven into each cup. The findings from Gurmessa, Dufera, and Gerbaba illuminate the profound connection between traditional coffee farming and the health of native woody species in Ethiopia. By honoring these knowledge systems and fostering sustainable practices, we are reminded that our agricultural choices hold the power to shape not just the landscape of our farms, but also the future of our planet’s biodiversity.

Promoting such research becomes a joint responsibility—a call to action for everyone to appreciate the delicate balance between agriculture and nature. By championing traditional practices and integrating them into modern agricultural frameworks, we can ensure a healthier, more resilient planet for generations to come. As the conversation around sustainable agriculture continues to evolve, the Abe Dongoro District stands as a testament to the potential benefits of looking back to traditional practices for solutions that address contemporary ecological challenges.

The future of coffee farming—and by extension, the ecosystems they inhabit—depends on a collaborative approach that respects both the land and the wisdom of those who have tended it for centuries. It is a story of resilience, adaptation, and hope in the face of impending global environmental challenges, resonating far beyond the borders of Ethiopia, reaching every corner of our interconnected world.

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Gurmessa, F., Dufera, G. & Gerbaba, G. Impact of traditional coffee farming practices on composition and regeneration of indigenous woody species in Abe Dongoro District, Ethiopia.
Discov. For. 1, 11 (2025). https://doi.org/10.1007/s44415-025-00011-6

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