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Altitudinal gradients and species richness: A study on diversity of orthoptera in Nilgiris Shola Forests and Grasslands


Affiliations
1 Chemistry and Bioprospecting Division, Institute of Forest Genetics and Tree Breeding, Coimbatore – 641002, Tamil Nadu, India
2 Division of Germplasm, Conservation and Utilization, National Bureau of Agricultural Insect Resources, Bengaluru – 560064, Karnataka, India
 

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Uplands provide refuge for insects subject to lowland habitat loss, but information on their response to climate change is lacking particularly orthopterans. There is a significant reduction in the diversity of grasshoppers however a shift of highly mobile and polyphagous insects towards higher altitudes is prevalent, in the era of climate change. Our study on the diversity of grasshoppers in the Nilgiris shola forest supported that the shift of grasshopper from mid-altitude to high altitude. The high values of Shannon’s diversity index (H’) were recorded in Nedugula (1.43) followed by Longwood (1.34) and Avalanche shola forests (1.29). The species distributed only in lowland forests are now recorded in the high altitudinal stunted wet evergreen shola forests. It is evident from our study that the upland forests provide refuges to highly mobile insects like grasshoppers when lowland sites have an impact on climatic fluctuations.

Keywords

Altitude, Conservation, Diversity, Orthoptera.
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  • Alam, M.M., Toriman, M.E., Siwar, C. and Talib, B. 2011. Rainfall variation and changing pattern of agricultural cycle. Amer. J. Environ. Sci., 7:82- 89. https://doi.org/10.3844/ajessp.2011.82.89.

  • Cesar, R.N., Chris, R.M.G., Deane Bowers, M. and Robert, P.G. 2010. Grasshopper community response to climatic change: variation along an elevational gradient. PLOSE ONE, 5(9):e12977. https://doi.org/10.1371/journal.pone.0012977. PMid:20886093 PMCid:PMC2944887.

  • Chen, C., Shiu, H.J., Benedick, S., Holloway, J.D., Chey, V.K., Barlow, H.S., Hill, J.K. and Thomas, C.D. 2009. Elevation increases in moth assemblages over 42 years on a tropical mountain. Proc. Natio. Aca. Sci. USA, 106(5):1479-1483. https://doi.org/10.1073/pnas.0809320106. PMid:19164573 PMCid:PMC2635813.

  • Colwell, R.K. and Estimate, S. 2004. Version 7: Statistical Estimation of Species Richness and Shared Species from Samples (Software and User’s Guide). Freeware for Windows and Mac OS.

  • Corinna, S.B. and Michael, J.S. 2011. Identifying grasshopper bioindicators for habitat quality assessment of ecological networks. Ecol. Indi., 11(5):1259-1269. https://doi.org/10.1016/j.ecolind.2011.01.005.

  • Ganeshaiah, K.N., Chandrasekara, K. and Kumar, A.R.V. 1997. A new measure of biodiversity based on biological heterogenity of the communities. Curr. Sci., 73(2):128-133.

  • Ingrisch, S. and Shishodia, M.S. 2000. New taxa and distribution records of Tettigoniidae from India. Mitt. Munch. Entomol. Ges., 90:5-37.

  • Ingrisch, S. 1990. Grylloptera and Orthoptera s. str. from Nepal and Darjeeling in the Zoologische Staatssammlung Munchen. Spixiana, 13(2):149-182.

  • Ingrisch, S. 2002. Orthoptera from Bhutan, Nepal, and North India in the Natural History Museum Basel. Entomol. Basilien, 24:123159.

  • Ingrisch, S. and Shishodia, M.S. 1997. A new species of Agraecinii from Northeast India. Entomol. Zeits, 107(12):510-512.

  • Ingrisch, S. and Shishodia, M.S. 1998. New species and records of Tettigoniidae from India (Ensifera). Mitteilungen der Schweizerischen Entomologischen Gesellschaft. 71:355-371.

  • Maes, D., Titeux, N., Hortal, J., Anselin, A., Decleer, K., Knijf, D.G., Fichefet, V. and Luoto, M. 2010. Predicted insect diversity decline under climate change in an already impoverished region. J. Insect Conser, 14:485-498. https://doi.org/10.1007/s10841-010-9277-3.

  • Mathew, M. and Mohandas, K. 2001. Insect fauna of the shola forests of Munnar and Wynad. KFRI Research Report, 206: p. 47.

  • Naskrecki, P. 1994. The southern African Mecopodiane - Their taxonomy, phylogeny and distribution (Orthoptera:Tettigoniidae). J. Afri. Zoo, 108:279-320.

  • Naskrecki, P. 1996a. Systematics of southern African Meconematinae (Orthoptera: Tettigoniidae). J. Afri. Zoo, 110:1-28.

  • Naskrecki, P. 1996b. An interactive key to katydids of La Selva Biological Station. Costa Rica. http://viccroy.eeb.uconn.edu/interkey/titlepg.

  • Naskrecki, P. 2000. Katydids of Costa Rica Vol.1. Systematics and Bioacoustics of the Cone-Head Katydids. The Orthop. Socie. USA; p. 163.

  • Naskrecki, P. and Otte, D. 1999. An illustrated catalog of orthoptera Vol.I. Tettigonoidae (CD ROM). The Orthopterists Society at the Academy of Natural Sciences of Philadelphia, Publications on Orthopteran Diversity.

  • Rahana Moideen Koya, V.K., Sabira, O., Shabna, V.C. and Naznin Shajahan. 2017. Diversity of orthoptera in Vaniyamkulam village of Ottappalam, Palakkad district, Kerala. Int. J. Multidis. Res. and Develop., 4(1):143-147.

  • Regniere, J., Nealis, V. and Porter, K. 2009. Climate suitability and management of the gypsy moth invasion into Canada. Biol. Invas., 11:135-148. https://doi.org/10.1007/s10530-008-9325-z.

  • Rentz, D.C.F. 1979. Comments on the classification of the orthopteran Family Tettigoniidae, with a key to subfamilies and description of two new subfamilies. Aus. J. Zoo, 27:991-1013. https://doi.org/10.1071/ZO9790991.

  • Sanjayan, K.P. 1994. Relationship between grasshopper and crops in an agroecosystem of Tamil Nadu, India. Beitra. Zu. Entom., 44(1):232-241.

  • Sanjayan, K.P., Muralirangan, M.C., Senthilkumar, N. and Karthikeyan, A. 2002. Complimentarity and taxic difference estimates and priority analysis for an insight into tettigoniid (Orthoptera: Tettigoniidae) diversity in Chennai, Tamil Nadu. Beitraege zur Entomologie, 52(2): 449-460. https://doi.org/10.21248/contrib.entomol.52.2.449-460.

  • Senthamarai Selvan, P., Jebanesan, A. and Reetha, D. 2016. Entomofaunal diversity of tree hole mosquitoes in Western and Eastern Ghats hill ranges of Tamil Nadu, India. Acta Tropica, 159:69-82. https://doi.org/10.1016/j.actatropica.2016.03.029. PMid:27016014

  • Senthamarai Selvan, P., Jebanesan, A., Divya, G. and Ramesh, V. 2015. Diversity of Mosquitoes and Larval Breeding preference based on Physico-Chemical parameters in Western Ghats, Tamil Nadu, India. Asian Pacific Journal of Tropical Disease, 5(1):S59-S66. https://doi.org/10.1016/S2222-1808(15)60858-1.

  • Senthilkumar, N., Barthakur, N.D. and Borah, N.J. 2006. Orthoptera fauna of the Gibbon Wild Life Sanctuary, Assam. Zoo’s Print, 21(8):2347-2349. https://doi.org/10.11609/JoTT.ZPJ.1442a.2347-9.

  • Senthilkumar, N., Karthikeyan, A., Muralirangan, M.C. and Mahalingam, V. 2001. Tettigoniidae of Tamil Nadu. Insect Environ., 7(2):56-57.

  • Senthilkumar, N., Karthikeyan, A., Muralirangan, M.C., Mahalingam, V. and Sanjayan, K.P. 2002. Tettigoniids of Tamil Nadu: A Study on Biodiversity. Proceedings on the Vistas of Entomological Research for the New Millennium; p. 37-45.

  • Senthilkumar, N., Murugesan, S., Krishnakumar, N. and Prashanth, R.S. 2014. Orthoptera of the Nilgiris Biosphere Reserve (NBR) - A Systematic Information on Grasshoppers. 1(1):1-15.

  • Senthilkumar, N., Prakash, R., Sanjayan, K.P., Mahalingam, V. and Muralirangan, M.C. 2009. Diversity and distributional pattern of Acridids (Orthoptera: Acrididae) in Tamil Nadu, India. Indian J. Forest, 32(2):277-284.

  • Shishodia, M.S. 2000a. Orthoptera (Insecta) fauna of Andaman and Nicobar Islands. Rec. zoo. Surv. India, 98(3):1-24.

  • Shishodia, M.S. 2000b. Short and Long-horned grasshoppers and crickets of Bastar District, Madhya Pradesh, India. Rec. zoo. Surv. India, 98(1):27-80.

  • Shishodia, M.S. and Tandon, S.K. 1990. The Grylloidae (Orthoptera) of Tripura, India. Rec. zoo. Surv. India, 87(2):99-107.

  • Sinclair, A.R.E. 1975. The resource limitation of trophic levels in tropical grassland ecosystems. J. Anim. Ecol., 44:497-520. https://doi.org/10.2307/3608.

  • Tandon, S.K. and Shishodia, M.S. 1972. Notes on the collection of Grylloidea (Orthoptera) from NEFA, India. Orien. Insect, 6(3):281292. https://doi.org/10.1080/00305316.1972.10434077.

  • Vane-Wright, R.I., Humphries, C.J. and Williams, P.H. 1991. What to protect? Systematics and the agony of choice. Biological Conservation, 55:235-254. https://doi.org/10.1016/0006-3207(91)90030-D.

  • Weiss, N., Zucchi, H. and Hochkirch, A. 2013. The effects of grassland management and aspect on Orthoptera diversity and abundance: site conditions are as important as management. Biodivers. Conserv., 22:2167-2178. https://doi.org/10.1007/s10531-012-0398-8.


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  • Altitudinal gradients and species richness: A study on diversity of orthoptera in Nilgiris Shola Forests and Grasslands

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Authors

Divya Govindaraj
Chemistry and Bioprospecting Division, Institute of Forest Genetics and Tree Breeding, Coimbatore – 641002, Tamil Nadu, India
Natchiappan Senthikumar
Chemistry and Bioprospecting Division, Institute of Forest Genetics and Tree Breeding, Coimbatore – 641002, Tamil Nadu, India
Senthamarai Selvan Periyasamy
Division of Germplasm, Conservation and Utilization, National Bureau of Agricultural Insect Resources, Bengaluru – 560064, Karnataka, India

Abstract


Uplands provide refuge for insects subject to lowland habitat loss, but information on their response to climate change is lacking particularly orthopterans. There is a significant reduction in the diversity of grasshoppers however a shift of highly mobile and polyphagous insects towards higher altitudes is prevalent, in the era of climate change. Our study on the diversity of grasshoppers in the Nilgiris shola forest supported that the shift of grasshopper from mid-altitude to high altitude. The high values of Shannon’s diversity index (H’) were recorded in Nedugula (1.43) followed by Longwood (1.34) and Avalanche shola forests (1.29). The species distributed only in lowland forests are now recorded in the high altitudinal stunted wet evergreen shola forests. It is evident from our study that the upland forests provide refuges to highly mobile insects like grasshoppers when lowland sites have an impact on climatic fluctuations.

Keywords


Altitude, Conservation, Diversity, Orthoptera.

References





DOI: https://doi.org/10.26515/rzsi%2Fv121%2Fi4%2F2021%2F157081