Skip to main content

Status and Distribution of Grizzled Giant Squirrel in Chinnar Wildlife Sanctuary, Kerala, India

  • Chapter
  • First Online:
Indian Hotspots

Abstract

Grizzled giant squirrel is placed in Schedule I of Indian Wild Life (Protection) Act, 1972, and categorized as “Near Threatened” in 2008 IUCN Red List of Threatened Species. In India, the grizzled giant squirrels are distributed in the Western and Eastern Ghats. The status of their Indian population is vulnerable due to drastic habitat loss, clear-felling, logging, construction of dams, hunting for local consumption, and expansion of agro-industry construction. A survey was conducted in Chinnar Wildlife Sanctuary (CWS) to estimate the population of grizzled giant squirrels, and 34 individuals were recorded within – 106.8 km. The length of the transects varied from 1.3 to 3.7 km. The present study analysis shows an overall density of 7.75 individuals per square kilometer, with standard error of 2.49. The total number of population in the study area was calculated by multiplying density to the total area (34.46 km2) and obtained 267 individuals/km2. The analysis based on the low AIC value 47.747 and chi-square P-value 0.51246. The density of the grizzled giant squirrel’s nests shows 68.99/km2 with the standard error of 19.55. A total of 12 tree species were used for nesting by grizzled squirrel, with a height variation of 2.5–35 m. Suitable conservation management suggestions were recommended.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 129.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 169.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 169.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

References

  • Baskaran N, Senthilkumar KS, Saravanan M (2011) A new site record of the grizzled Giant squirrel Ratufa macroura (pennant, 1769) in the Hosur Forest division, eastern Ghats, India and its conservation significance. J Threatened Taxa 3(6):1837–1841

    Article  Google Scholar 

  • Biswas S, Sankar K (2002) Prey abundance and food habit of tigers (Panthera tigris tigris) in Pench National Park, Madhya Pradesh, India. J Zool 411–422

    Google Scholar 

  • Buckland ST, Anderson DR, Burnham KP, Laake JL (1993) Distance sampling: estimating abundance of biological populations. Chapman and Hall, London

    Book  Google Scholar 

  • Burnham KP, Anderson DJ, Laake JL (1980) Estimation of density from Line Transect sampling of biological populations, Wildlife monographs, 72. The Wildlife Society, Washington, DC

    Google Scholar 

  • Champion HG, Seth SK (1968) A revised survey of Forest types of India. Government of India, Delhi

    Google Scholar 

  • Chandrasekaran C (1962) Ecological study of the forests of Kerala state. Indian For 88(7):473–480

    Google Scholar 

  • Davidar P (1989) Grizzled Giant squirrel Ratufa macroura- distribution in Kudirayar. J Bombay Nat Hist Soc 86(3):437

    Google Scholar 

  • Ellerman JR (1961) The fauna of India including Pakistan, Burma and Ceylon. Mammalia – 2nd Edition, Rodentia. The Zoological Survey of India, Calcutta, 3: 884

    Google Scholar 

  • Jathanna D, Johnsingh AJT, Karanth UK (2003) Estimation of large herbivore densities in the tropical forests of southern India using distance sampling. J Zool 285–290

    Google Scholar 

  • Jayson EA, Ramachandran KK (1996) Habitat Utilization by larger mammals in Chinnar Wildlife Sanctuary. KFRI Research Report

    Google Scholar 

  • Joshua J (1992) Ecology of the endangered Grizzled Giant Squirrel (Ratufa macroura) in Tamil Nadu, South India. Ph.D thesis. Bharathidasan University, Tiruchirapalli, Tamil Nadu

    Google Scholar 

  • Joshua J, Johnsingh AJT (1992) Status of endangered grizzled giant squirrel and its habitats. In: Singh K, Singh JS (eds) Tropical ecosystems: ecology and management. Willey Eastern Ltd, New Delhi, pp 151–159

    Google Scholar 

  • Joshua J, Johnsingh AJT (1994) Impact of biotic disturbances on the habitat and population of the endangered grizzled giant squirrel (Ratufa macroura) in South India. Biol Conserv 68:29–34

    Article  Google Scholar 

  • Joshua J, WILDPTS de A Goonatilake, Molur S (2008) Ratufa macroura. In: IUCN 2010. IUCN red list of threatened species. Version 2010.4. www.iucnredlist.org. Downloaded on 06 June 2011

    Google Scholar 

  • Karanth KU, Sunquist M (1992) Population structure, density and biomass of large herbivores in the tropical forests of Nagarahole, India. J Trop Ecol 8:21–35

    Article  Google Scholar 

  • Karanth KU, Sunquist ME (1995) Prey selection by tiger, leopard and dhole in tropical forests. J Anim Ecol 64:439–450

    Article  Google Scholar 

  • Karthikeyan S, Prasad JN, Arun B (1992) Grizzled Giant squirrel Ratufa macroura Thomas and Wroughton at Cauvery valley in Karnataka. J Bombay Nat Hist Soc 89(3):360–361

    Google Scholar 

  • Khan JA, Chellam R, Rodgers WA, Johnsingh AJT (1996) Ungulate density and biomass in the tropical dry deciduous forests of Gir, Gujurat, India. J Trop Ecol 12:149–162

    Article  Google Scholar 

  • Kumara HN, Singh M (2006) Distribution and relative abundance of giant squirrel and flying squirrel in Karnataka, India. Mammalia 70:40–47

    Article  Google Scholar 

  • Molur S, C Srinivasulu, Srinivasulu B, Walker S, Nameer PO, Ravikumar L (2005) Status of non-volant small mammals: Conservation Assessment and Management Plan (C.A.M.P) Workshop Report. Zoo Outreach Organization/CBSG-South Asia, Coimbatore, India, 618 p

    Google Scholar 

  • Nowak RM (1991) Walker’s mammals of the world, 5th edn. Johns Hopkins University Press, Baltimore

    Google Scholar 

  • Paulraj S, Kasinathan N (1993) Scanty known grizzled giant squirrel (Ratufa macroura) of India: status and conservation. Indian For 119:828–833

    Google Scholar 

  • Paulraj S, Kasinathan N, Rajendran K (1992) Studies on the biology of Grizzled Giant Squirrel Part I. Population, feeding, home range and activity pattern. Research report, Tamil Nadu State Forest Department

    Google Scholar 

  • Ramachandran KK (1989) Endangered grizzled giant squirrel habitat. J Bombay Nat Hist Soc 86:94–95

    Google Scholar 

  • Ramachandran KK (1993) Status survey and distribution of endangered grizzled giant squirrel in Chinnar wildlife sanctuary, Kerala, India. Indian J For 16(3):226–231

    Google Scholar 

  • Senthilkumar K, Agoramoorthy G, Hsu MJ (2007) Population size, density and conservation status of grizzled giant squirrel in Chinnar wildlife sanctuary, India. Mammalia 71(1):89–94

    Google Scholar 

  • Sharma N (1992) Status of and ecology of Grizzled Giant Squirrel (Ratufa macroura) in the Palani Hills. M.S. Dissertation, Pondicherry University

    Google Scholar 

  • Srinivasulu C, Srinivasulu B, Rajesh A, Rao CAN, Nagulu V (2004) Non-volant small mammals of Kasu Brahmananda Reddy National Park, Andhra Pradesh. Zoos’ Print J 19(6):1495–1497

    Article  Google Scholar 

  • Tikader BK (1983) Threatened animals of India. Zoological Survey of India, Calcutta. 307 p

    Google Scholar 

  • Vanitharani J, Kavitha BB, Margaret VI (2011) Probe in to the conservation status of Ratufa macroura through the analysis of plant-animal interaction in the Srivilliputhur grizzled squirrel wildlife sanctuary. J Adv Biotech 10(10):67–69

    Google Scholar 

  • Varman KS, Sukumar R (1995) The line transect method for estimating densities of large mammals in a tropical deciduous forest: an evaluation of modes and field experiments. J Biosci 20(2):273–287

    Article  Google Scholar 

  • Vijayakumaran Nair P, Ramachandran KK, Jayson EA (1997) Distribution of mammals and birds in Chinnar Wildlife Sanctuary. KFRI Research Report

    Google Scholar 

Download references

Acknowledgments

We thank the Kerala Forest Department and officials for their enough kindness to provide fund and man power during our survey. We also thank to the resource persons and team members who have actively participated in the survey.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to A. Veeramani .

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2018 Springer Nature Singapore Pte Ltd.

About this chapter

Check for updates. Verify currency and authenticity via CrossMark

Cite this chapter

Veeramani, A., Balasubramanian, M., Sanjayankumar, Mathew, J. (2018). Status and Distribution of Grizzled Giant Squirrel in Chinnar Wildlife Sanctuary, Kerala, India. In: Sivaperuman, C., Venkataraman, K. (eds) Indian Hotspots . Springer, Singapore. https://doi.org/10.1007/978-981-10-6605-4_11

Download citation

Publish with us

Policies and ethics