Sunil Harsana

THT Action Grant 2025

Project Title:

Ecology of the Striped Hyena in Suburban Landscapes: Quantifying Population Status and Threats and Strategising Conservation in the Delhi NCR

Project Brief:

The striped hyena (Hyaena hyaena), classified as Near Threatened by the IUCN, has a global population of fewer than 10,000 mature individuals. Its population is in decline due to habitat loss, persecution, and prey depletion. Despite its ecological role as a scavenger, the species remains understudied, particularly in India’s semi-arid forests—its prime habitat. This project focuses on the striped hyena population in the Aravalli Hills of southern Haryana, a critical yet overlooked habitat spanning over 250 square kilometres between Delhi and Haryana.

This region serves as a key wildlife corridor but faces growing threats from urban expansion, real estate development, illegal mining, and road construction. While previous camera-trap studies suggest a relatively high hyena density, systematic assessments are lacking. This project will conduct a grid-based population assessment using paired camera traps and an occupancy framework to quantify habitat use. They will also monitor breeding sites and conduct interviews with local communities in high- occupancy areas to understand human-hyena interactions and conservation challenges. The findings will provide crucial data for conservation planning and contribute to strategies aimed at ensuring the long-term survival of this elusive carnivore in the Aravalli landscape.

Project objectives:

The project has the following objectives:

  • Estimate the population of large carnivores, specifically striped hyenas, in the Aravalli Hills using the capture-recapture method.
  • Analyse their spatial occupancy and movement patterns through a grid-based paired camera trap approach supplemented by local interviews.
  • Identify key habitat features such as breeding zones.
  • Help establish the Haryana Aravallis as a critical striped hyena habitat and contribute to conservation strategies through rigorous ecological research.
Project Location:
  • Aravallis in Faridabad & Gurugram, Haryana