Tiger Conservation.pdf

Key Findings:

India is home to over 60% of the world's tigers, with an estimated 1500-1900 individuals.
Connecting tiger populations through corridors is crucial for their long-term conservation, ensuring genetic exchange and reducing extinction risks.
The report identifies potential tiger corridors across India, derived from intensive surveys and assessments of tiger, prey, and habitat in 2006 and 2010.
The corridors are modeled using GIS-based algorithms and circuit theory, providing a first-cut information for field managers to identify, manage, and restore habitat connectivity.

Importance of Connectivity:

Habitat fragmentation and isolation can lead to local extinctions, demographic stochasticity, and inbreeding depression.
Connecting tiger populations through corridors can mitigate these impacts, facilitating species accommodation to climate change and maintaining evolutionary potential.
Wildlife conservation emphasizes two primary strategies to promote connectivity: conserving areas that facilitate movement and restoring connectivity across areas that impede movement.

Methodology:

The report uses a combination of graph theory and habitat availability metrics to analyze connectivity.
Models distinguish between habitats of varying quality, accounting for reduced ecological cost when individuals move through favorable habitats.
The study focuses on patch-based description of connectivity, underlining meta-population dynamics and the significance of high-quality habitats for movement.