Future Outlook of Building Indonesia National Hornbill Monitoring Protocol

THE SARAWAK MUSEUM JOURNAL
VOL LXXIX NO.100 DECEMBER 2018

Title :
Future Outlook of Building Indonesia National Hornbill Monitoring Protocol

Author :
Nurul L. Winarni, Yok-Yok Hadiprakarsa and Iwan Hunowu

Abstract:

Hornbills (Bucerotidae) are endangered bird species and current trade issues become major threats which surpass the information available on hornbill population. Differences in survey protocol from various regions in Indonesia may lead to acquisition of low quality data. Using Distance Sampling data from Sumatra and Sulawesi gathered from various projects, we examined different protocols for hornbill population estimation. The results demonstrated that most of hornbill species are distributed in the undisturbed forests of protected areas. The higher the efforts of the survey, the more observations are obtained. Density estimations were similar for Sumatran species except for the Rhinoceros Hornbill. Density estimation for Sulawesi hornbills was inconsistent, probably due to difference in site (mainland versus island). Line transect seemed more effective to achieve detections compared to point count suggest that detection at initial location may be violated in point count. These results suggested that understanding distance sampling is important in standardising protocols. Additionally, improvement on detections and hornbill identification is needed. Thus, training is crucial to ensure that a national hornbill monitoring protocol can be established and applied throughout Indonesia.

DOI:
https://doi.org/10.61507/smj22-2018-LV68-01

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How to cite:
Nurul L. Winarni et. all (2018). Future Outlook of Building Indonesia National Hornbill Monitoring Protocol. Sarawak Museum Journal, LXXIX (100): 1-16 https://doi.org/10.61507/smj22-2018-LV68-01

References

Anggraini, K., Kinnaird, M. & O’Brien, T. 2001 The effects of fruit availability and habitat disturbance on an assemblage of Sumatran hornbills. Bird Conservation International 10: 189–202.
Bachan, K.H.A., Kannan, R., Muraleedharan, S. & Kumar, S. 2011 Participatory conservation and monitoring of Great Hornbills and Malabar Pied Hornbills with the involvement of endemic kadar tribe in the Anamalai Hills of Southern Western Ghats, India. The Raffles Bulletin of Zoology: 37–43.
Bennett, E.L., Nyaoi, A.J. & Sompud, J. 1997 Hornbills Buceros spp. and culture in Northern Borneo: Can they continue to co-exist? Biological Conservation 82: 41–46.
Bibby, C.J., Burgess, N.D., Hill, D.A. & Mustoe, S.H. 2000 Bird census technique, Second edition. Academic Press, London.
Buckland, S.T., Anderson, D.R., Burnham, K.P., Laake, J.L., Borchers, D.L. & Thomas, L. 2001 Introduction to distance sampling: estimating abundance of biological populations. Oxford University Press, Oxford.
Gale, G.A. & Thongaree, S. 2006 Density estimates of nine hornbill species in a lowland forest site in southern Thailand. Bird Conservation International 16: 57‒69.
Hadiprakarsa, Y. 2008 Forest patch occupancy by Sumatran Hornbills in a fragmented landscape of Southern Sumatra, Indonesia. M.Sc Thesis. University of Georgia, Athens.
2016 Informasi awal trend populasi dan konservasi rangkong gading di Indonesia. Konferensi Peneliti dan Pemerhati Burung II, Jogyakarta, 4‒5 Februari 2016.
Kemp, A. 1995 The Hornbills. Oxford University Press, Oxford.
Kemp, A., Kemp, M. & Thongaree, S. 2011 Use of lookout watches over forest to estimate detection, dispersion and density of hornbills, Great Argus and diurnal raptors at Bala forest, Thailand, compared with results from in-forest line transects and spot maps. Bird Conservation International 21: 394–410.
Kinnaird, M.F., O’Brien, T.G. & Suryadi, S. 1996 Population fluctuation in Sulawesi red-knobbed hornbills: tracking figs in space and time. The Auk 113: 431‒440.
Marsden, S.J. 1998 Change in bird abundance following selective logging in Seram, Indonesia. Conservation Biology 12: 605‒611.
1999 Estimation of parrot and hornbill densities using a point count distance sampling method. Ibis 141: 327‒390.
O’Brien, T.G., Kinnaird, M.F. & Wibisono, H.T. 2003 Crouching tigers, hidden prey: Sumatran tiger and prey populations in a tropical forest landscape. Animal Conservation 6: 131‒139.
Poonswad, P., Sukkasem, C., Phataramata, S., Hayeemuida, S., Plongmai, K., Chuailua, P., Thiensongrusame, P. & Jirawatkavi, N. 2005 Comparison of cavity modification and community involvement as strategies for hornbill conservation in Thailand. Biological Conservation 122: 385‒393.
Raman, T.R.S. & Mudappa, D. 2003 Correlates of hornbill distribution and abundance in rainforest fragments in the southern Western Ghats, India. Bird Conservation International 3: 199‒212.
Reynolds, R.T., Scott, J.M. & Nussbaum, R.A. 1980 A variable circular-plot method for estimating bird numbers. The Condor 82: 309‒313.
Riley, J. & Mole, J. 2001 The birds of Gunung Ambang Nature Reserve, North Sulawesi, Indonesia. Forktail 17: 57‒66.
Thomas, L., Buckland, S.T., Rexstad, E.A., Laake, J.L., Strindberg, S., Hedley, S.L., Bishop, J.R.B., Marques, T.A. & Burnham, K.P. 2010 Distance software: design and analysis of distance sampling surveys for estimating population size. Journal of Applied Ecology 47: 5‒14.
Trainor, C.R. 2007 Changes in bird species composition on a remote and well-forested Wallacean Island, South-East Asia. Biological Conservation 140: 373‒385.
Winarni, N.L. 2009 Community Patterns of Birds and Butterflies in Tropical Forests of Southeast Sulawesi and the Selection of Indicator Species for Ecological Monitoring. PhD thesis. Manchester Metropolitan University, Manchester.
Winarni, N.L., O’Brien, T.G., Carroll, J.P. & Kinnaird, M.F. 2009 Movements, Distribution, and Abundance of Great Argus Pheasants (Argusianus argus) in a Sumatran Rainforest. The Auk 126: 341‒350.