Ram, S., Nayak, R., Satheesh, N. & Vaidyanathan, S. A guide to establish a natural wind barrier. (Foundation for Ecological Research, Advocacy and Learning, 2015).

Vaidyanathan, S., H S, S. & Ram, S. Rationalizing Protected Area Network in the Periyar‐Agastyamalai Landscape. (Foundation for Ecological Research, Advocacy and Learning, 2015).

H S, S., Ram, S. & Vaidyanathan, S. Gap analysis of the Periyar Agasthyamalai landscape for arboreal mammal conservation. Final technical report. (Foundation for Ecological Research Advocacy and Learning, 2013).

Ram, S. Study of the distribution of Primates of the Genus Semnopithecus and understanding factors that influence parapetry between the common langur (Semnopithecus priam) and Nilgiri langur (Semnopithecus johnii) in the southern Western Ghats. (Foundation for Ecological Research, Advocacy and Learning, 2013).

Gangadharan, A., Vaidyanathan, S. & Ram, S. Identifying critical areas for a landscape - level wildlife corridor in the southern Western Ghats. (Foundation for Ecological Research, Advocacy and Learning, 2011).

Ram, S. & Vaidyanathan, S. Within site variation in the feeding ecology of the nilgiri langur (Semnopithecus johnii) in a human altered landscape. (2010).

Gangadharan, A., Vaidyanathan, S. & Ram, S. Modeling population-level linkages for elusive large mammals in the southern Western Ghats, India. 24th International Congress for Conservation Biology (2010).

Vaidyanathan, S., Gangadharan, A. & Ram, S. A comprehensive ground-based framework for quantification of human impacts on wildlife and habitat. 24th International Congress for Conservation Biology (2010).

Vaidyanathan, S., P, D. & Ram, S. Site occupancy of the Indian giant squirrel Ratufa indica (Erxleben) in Kalakad–Mundanthurai Tiger Reserve, Tamil Nadu, India. Current Science 95, 889–894, (2008).

Bhalla, R. S., Ram, S. & Vaidyanathan, S. Studies on Vulnerability and Habitat Restoration along the Coromandel Coast. (Foundation for Ecological Research, Advocacy and Learning, 2008).