Community Structure of Hornbills in an Oil Palm Landscape in East Kalimantan, Indonesia


 

THE SARAWAK MUSEUM JOURNAL
VOL LXXIX NO.100 DECEMBER 2018

 
 
Title : 
Community Structure of Hornbills in an Oil Palm Landscape in East Kalimantan, Indonesia

Author : 
Gilang Fajar Ramadhan, Bandung Sahari and Joko Supriyono

Abstract:
Conserved land in human dominated landscapes such as oil palm plantations provide habitat for many animal taxa including hornbills. The aim of the study is to quantify species richness, distribution, population size and sex ratio of hornbill community in oil palm landscapes with retained native forest patches. Ecological sampling was conducted in an oil palm plantation in East Kalimantan, Indonesia. Birds were observed using fixed radius point count method. We found that there were six hornbill species belonging to four genera of Bucerotidae including Helmeted Hornbill, Rhinoceros Hornbill, Wreathed Hornbill, Wrinkled Hornbill, Black Hornbill and Oriental Pied Hornbill that occurred in the study site. Population density varied among species ranging from 0.17 to 4.72 individual per km2 in 2012 and 0.34 to 3.35 individual per km2 in 2013. Rhinoceros Hornbill was the most abundant species observed in one location with highest number of individual per group of about 21 individuals during flocking. Sex ratio (M:F) was ranged from 0.31 to 0.95. The dispersion of hornbill species was generally random. Our results show that retention of forest patches on oil palm plantations can help to maintain the diversity and abundance of hornbills in the region.

DOI:
https://doi.org/10.61507/smj22-2018-TUF4-11


How to cite:
Gilang Fajar Ramadhan et. all (2018). Community Structure of Hornbills in an Oil Palm Landscape in East Kalimantan, Indonesia. Sarawak Museum Journal, LXXIX (100) (2018): 147-158 https://doi.org/10.61507/smj22-2018-TUF4-11

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