Biodiversity and Conservation

, Volume 28, Issue 12, pp 3221–3237 | Cite as

Large scale burning for a threatened ungulate in a biodiversity hotspot is detrimental for grasshoppers (Orthoptera: Caelifera)

  • Dhaneesh BhaskarEmail author
  • P. S. Easa
  • K. A. Sreejith
  • Josip Skejo
  • Axel Hochkirch
Original Paper


Habitat management strategies across the globe are often focusing on flagship species, such as large threatened mammals. This is also true for most protected areas of India, where large mammals such as the Tiger or Asian Elephant represent focal species of conservation management, although a shift towards other species groups can be observed in recent times. Prescribed burning is a controversially debated method to manage open habitat types. This method is practised as a tool to manage the habitat of the endangered Nilgiri tahr, Nilgiritragus hylocrius (an endemic goat) at a large scale (50 ha grids) in Eravikulam National Park of the Western Ghats (Kerala, India). However, the impact of prescribed burning on other biota of this unique environment in a global biodiversity hotspot has not been studied. We compared the impact of large-scale prescribed burning on grasshopper abundances in Eravikulam National Park with small-scale burning in Parambikulam Tiger Reserve from 2015 to 2018, to assess the impact of the different fire management practices of these reserves on this species-rich insect group. We observed a negative response of grasshoppers to burning of larger contiguous areas in terms of their recovery after fire events, whereas burning small patches in a mosaic pattern facilitated rapid recovery of grasshopper communities. Our results suggest that burning management can be optimized to benefit both, the flagship vertebrate species as well as species-rich invertebrate communities.


Western Ghats Habitat heterogeneity Fire extent Grasshopper abundance Grassland management Insect conservation Prescribed burning 



We are thankful to the Director, Sajeev TV, lab mates (ecology and entomology) and all other scientific community members of the Kerala Forest Research Institute (KFRI) for their support. The financial support of the Orthoptera Species File Grant made the visit to European museums possible. We are grateful to Maria Marta Cigliano, Holger Braun of OSF and Judith Marshall, George Beccaloni of NHM London and Mercedes Paris of MNCN Madrid for their whole hearted support during the study. We acknowledge the Kerala Forest and Wildlife Department (PKMTR and ENP); Wildlife wardens (Anjan Kumar IFS and Prasad G) Range Forest Officers (Manoj K, Johnson CK, Rajan V, Jayaprakash K, Sanjayan MP and Sandeep S) our field assistants (Bagyaraj, Sreenivasan, Karupswami and Kapilan) as well as Mr. Shiju (driver KFRI) for safely driving us through the forests.

Supplementary material

10531_2019_1816_MOESM1_ESM.xlsx (22 kb)
Supplementary material 1 (XLSX 22 kb)


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Kerala Forest Research InstitutePeechi, ThrissurIndia
  2. 2.University of CalicutThenhipalamIndia
  3. 3.IUCN SSC Grasshopper Specialist GroupGlandSwitzerland
  4. 4.Division of Zoology, Department of Biology, Evolution LabUniversity of ZagrebZagrebCroatia
  5. 5.Department of BiogeographyTrier UniversityTrierGermany

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