MONITORING OF Cacatua sulphurea abbotti POPULATION IN MASAKAMBING ISLAND, INDONESIA

Cacatua sulphurea abbotti critically endangered decade monitoring Masakambing population

Authors

  • Dudi Nandika
    dudi_09@apps.ipb.ac.id
    Department of Forest Resource Conservation and Ecotourism, Faculty of Forestry, Institut Pertanian Bogor, Bogor 16680 , Indonesia
  • Yeni Aryati Mulyani Department of Forest Resource Conservation and Ecotourism, Faculty of Forestry, Institut Pertanian Bogor, Bogor 16680 , Indonesia
  • Dewi Malia Prawiradilaga Division of Zoology (Museum Zoologicum Bogoriense), Research Center for Biology, Indonesian Institute of Sciences, Bogor 16911 , Indonesia
  • Dwi Agustina Perkumpulan Konservasi Kakatua Indonesia - The Indonesian Parrot Project, Bekasi 17530  , Indonesia
March 5, 2019
May 29, 2019
December 23, 2020

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The Critically Endangered Cacatua sulphurea abbotti is a unique subspecies of cockatoo, endemic to a single tiny Masakambing Island in Indonesia. Data procurement on the status and distribution of their wild population is urgently needed to determine the best conservation strategy for this species. Data were collected annually from 2008–2018 using a direct roost count method in a roosting tree. Only 10 cockatoos were recorded in 2008, but the number increased to 22 birds in 2018 (a 42.86% increase in a decade). The population was distributed across about 71% of the total area of the island, concentrated in the north-western part with a density of 1.56 (~2 birds/km²) in 2008, which increased to 3.44 (~3 birds/km²) in 2018. The zero-trapping policy enforced by the local government was likely effective in preventing population decline, although the population remains vulnerable due to nesting failure, presumably low genetic quality, and habitat destruction.

How to Cite

MONITORING OF Cacatua sulphurea abbotti POPULATION IN MASAKAMBING ISLAND, INDONESIA. (2020). BIOTROPIA, 27(3), 271-281. https://doi.org/10.11598/btb.0.0.0.1229