S4|EP25 - Discovering New Species in the Western Ghats | Herpetology with Abinesh Anbazhagan

The Western Ghats of India are one of the world’s most important biodiversity hotspots, home to thousands of endemic species and remarkable ecological diversity. In this episode of the Think Wildlife Podcast, we speak with Abinesh Anbazhagan, a PhD scholar at Pondicherry University whose research explores herpetology, biodiversity discovery, and the growing role of technology in wildlife conservation.

Abinesh’s work focuses on documenting biodiversity in the Nilgiris landscape, a region that forms a crucial part of the Western Ghats ecosystem. Over more than a decade of research, his work has contributed to large-scale biodiversity indexing projects that have documented thousands of terrestrial species in the region. These efforts are critical for understanding the distribution of species and identifying areas that require urgent conservation attention.

One of the most exciting aspects of Abinesh’s research is the discovery and description of new species. Recent work has resulted in the identification of previously unknown species of arthropods and fireflies, as well as the rediscovery of species believed to be lost or extremely rare. Discoveries like these highlight how much remains unknown about biodiversity in even well-known landscapes such as the Western Ghats.

The episode also explores Abinesh’s research on reptile ecology, including geckos, snakes, and tarantulas, and his current PhD research focusing on pit viper ecology in island ecosystems. Understanding the ecology and distribution of these species is vital for conservation, particularly because many reptiles and amphibians are highly sensitive to environmental change and habitat disturbance.

A major theme of the conversation is the increasing role of technology in modern wildlife research. From camera trapping and telemetry to GIS modeling, machine learning, and molecular genetics, technological tools are transforming the way scientists monitor species and ecosystems. Abinesh explains how tools such as DNA barcoding, phylogenetic analysis, and satellite-based spatial data are helping researchers identify species, map habitats, and detect emerging conservation threats.

The discussion also highlights the importance of traditional ecological knowledge and community participation in conservation. Indigenous communities and local forest watchers often possess deep knowledge of species behavior, habitats, and seasonal patterns. Integrating this knowledge with scientific research can significantly improve conservation outcomes and strengthen long-term ecosystem stewardship.

Abinesh also discusses the key threats facing biodiversity in the Nilgiris region, including deforestation, invasive species, habitat encroachment, pesticide pollution, and artificial light at night. These pressures can have serious consequences for endemic species, particularly reptiles and amphibians that rely on specific temperature ranges and microhabitats for survival.

Climate change presents another major challenge for wildlife in mountainous ecosystems like the Western Ghats. Many species are adapted to narrow climatic conditions and may be forced to shift their ranges to higher elevations as temperatures rise. For species already restricted to mountain peaks or isolated habitats, this could lead to local extinctions.

This episode provides a fascinating look at the intersection of taxonomy, technology, and conservation science in one of the most biologically rich regions of the world. From rediscovering species thought to be extinct to exploring how artificial intelligence can transform wildlife monitoring, the conversation highlights the importance of continued research and collaboration in protecting biodiversity.

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