Wildlife of
Mizoram

Primary Threats

• Forests are broken and damaged by short-fallow jhum farming, conversion to single-crop plantations (oil palm and other cash crops), and growing settlements on ridge roads. Small clearings cut the tree canopy and isolate tree-living animals (gibbons, hornbills) near Dampa and Murlen.
• Expansion/intensification of cash crops and plantations in accessible low-to-mid elevation areas reduces mixed native forest and increases edge effects. Simplified habitats reduce fruiting-tree diversity important for hornbills and primates and increase human-wildlife interactions (crop raiding by macaques, wild pigs, and occasionally elephants in some landscapes).
• Selective illegal felling, fuelwood collection, and local timber extraction (including for housing and road-side markets) degrade mature forest structure. This reduces nesting trees for hornbills and denning/cover for large mammals and can increase landslide risk on high-rainfall slopes.
• Hunting for bushmeat and traditional use persists in some remote areas and along forest-village interfaces, affecting ground birds, ungulates, and primates. Even where large-scale commercial hunting is limited, widespread opportunistic take can depress wildlife densities and disrupt ecological roles (seed dispersal, prey base for big cats).
• Cross-border routes and porous hill borders elevate risk of trafficking (notably pangolins, bear parts, and other high-value wildlife). Trade pressure compounds local hunting and can rapidly remove rare species from forests that otherwise appear intact.
• Road widening, new connectivity projects, and associated quarrying/cut slopes fragment habitats and increase access for hunting and timber removal. In high rainfall areas, road cuts can trigger chronic landslides and sedimentation that degrade downstream river habitats.
• Stone quarrying, sand/gravel extraction, and small-scale mining for construction materials can destabilize slopes, increase silt loads in streams, and create localized habitat loss near expanding towns and road projects.
• Solid-waste leakage and untreated sewage around growing urban centers (notably the Aizawl region) contaminate streams; agrochemical runoff from intensified cultivation affects aquatic life. Siltation from slope disturbance is a major water-quality stressor in monsoon conditions.
• Localized overharvest in rivers and streams-sometimes using destructive methods (poisons/explosives/electricity in some areas)-reduces native fish and aquatic invertebrates, undermining food webs and riparian livelihoods.
• Crop depredation by wild pigs, macaques, and deer is common near forest edges; occasional conflicts with elephants occur where movement corridors intersect cultivated valleys. Retaliatory actions and negative attitudes can undermine tolerance for wildlife around protected areas.
• High visitation pressure at iconic landscapes (e.g., Phawngpui/Blue Mountain) and increased footfall in accessible forests cause disturbance, litter, trail erosion, and greater fire risk during dry spells.
• Altered fire regimes in jhum landscapes, stream modification for small irrigation, and periodic bamboo flowering events (which can drive rodent irruptions and secondary forest clearing pressures) reshape habitats and can trigger cascading impacts on crops, forests, and wildlife.
• Changing monsoon timing/intensity and warmer temperatures amplify landslides, flash floods, and dry-season water stress. These shifts can alter bamboo/forest phenology, reduce habitat suitability for cool-adapted montane species, and increase disease/parasite pressures at forest edges.
• Spillover risk between domestic animals (free-ranging dogs/pigs) and wildlife near villages can affect carnivores and ground fauna; outbreaks can be exacerbated by habitat disturbance and increased edge contact. Monitoring is limited in remote terrain, delaying detection/response.
• Overharvest of non-timber forest products (bamboo, cane, medicinal plants, and wild edibles) and extraction of river materials can reduce regeneration and simplify understorey structure, affecting species reliant on dense shrub layers and riparian zones.
• Growth of towns and peri-urban sprawl (especially around Aizawl and district headquarters) increases demand for construction materials, water, and fuelwood, driving nearby forest degradation and stream pollution.
• Fragmentation of hill forests into smaller patches around roads and jhum mosaics can isolate populations of arboreal mammals and forest specialists, raising long-term risks from reduced gene flow-especially in species with naturally low densities such as big cats and some pheasants.