Population densities and diurnal activity pattern of the Indian Roller Coracias benghalensis (Aves: Coraciiformes) in Nagapattinam District, Tamil Nadu, India

Authors

  • S. Asokan
  • A.M.S. Ali
  • R. Manikannan
  • G.T. Nithiyanandam

DOI:

https://doi.org/10.11609/JoTT.o2308.1185-91

Abstract

Population densities and diurnal activity pattern of the Indian Roller were studied in Nagapattinam District over three years in different habitats. The agricultural lands supported the highest populations (41km-2), followed by river banks (36km-2) and social forests (32km-2); populations showed yearly variations in numbers and density in all habitats. On average, birds were observed to spend most of the day scanning (57%), with the remainder divided among feeding (16%), flying, (12%), preening (10%) and resting (5%). Some variations in activity breakdown were observed between time blocks, seasons and habitats.

Author Biographies

  • S. Asokan
    Dr. S. Asokan is currently teaching, undertaking and supervising various research activities. He has produced 7 PhD and 40 MPhil scholars in wildlife biology and zoology. He has published more than 35 research papers in leading national and international journals.
  • A.M.S. Ali
    A. Mohamed Samsoor Ali obtained his MSc degree in Wildlife Biology from A.V.C. College, Mannampandal in 2003 and has been working on various fields of ornithology since 2004.
  • R. Manikannan
    R. Manikannan is working as a lecturer and also doing PhD on ‘Diversity of wetland birds in Point Calimere Wildlife Sanctuary’.
  • G.T. Nithiyanandam
    G. Thomas Nithiyanandam is working on ‘Birds of agro-ecosystem in Nagapattinam District’ for a PhD degree.

References

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Published

26-09-2010

Issue

Vol 2, No 10 (2010)

Section

Articles

License

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