Electronic Theses and Dissertation

Penelitian ini didasari oleh urgensi konservasi burung rangkong yang sangat bergantung pada rongga alami pohon sebagai lokasi bersarang. Ketersediaan sarang alami semakin berkurang akibat degradasi habitat dan penebangan pohon besar secara masif. Data mengenai karakteristik lubang pohon yang berpotensi menjadi sarang rangkong masih sangat terbatas di Taman Nasional Gunung Leuser. Oleh karena itu, penelitian ini bertujuan untuk mengidentifikasi spesies pohon yang memiliki lubang potensi sarang rangkong, mendeskripsikan karakteristik pohon dan karakteristik lubang yang berpotensi sebagai sarang rangkong, mengidentifikasi spesies rangkong dan menghitung jumlah individu yang terdapat pada pohon potensi sarang rangkong di Stasiun Penelitian Ketambe. Penelitian ini bersifat deskriptif menggunakan metode observasi langsung yaitu pohon potensi dipanjat untuk mengamati karakteristik lubang pada pohon yang berpotensi menjadi sarang rangkong di Stasiun Penelitian Ketambe. Spesies pohon yang memiliki lubang potensi sebagai sarang rangkong di Stasiun Penelitian Ketambe ada 4, yaitu Shorea leprosula, Dysoxylum alliaceum, Aglaia lawii dan Aglaia korthalsii. Karakteristik pohon potensi sarang rangkong memiliki rata-rata diameter batang sebesar 76,66 cm, rata-rata tinggi pohon mencapai 29,37 m, rata-rata tinggi bebas cabang mencapai 14,73 m dan tinggi sarang rata-rata terletak pada ketinggian 11,93 m. Karakteristik lubang potensi sarang rangkong memiliki rata-rata luas dimensi pintu sebesar 208,4 cm2 dan rata-rata volume sarang sebesar 153.858,2 cm3. Spesies rangkong yang diketahui mengunjungi pohon potensi sarang yaitu rangkong klihingan (Anorrhinus galeritus) sebanyak 7 individu.

Kata kunci: karakteristik, lubang, sarang, potensi, rangkong.

This research is based on the urgency of conservation of hornbills that are highly dependent on natural tree cavities as nesting locations. The availability of natural nests is decreasing due to habitat degradation and massive logging of large trees. Data on the characteristics of tree cavities that have the potential to become hornbill nests are still very limited in Leuser Mountain National Park. Therefore, this study aims to identify potential tree species, describe the characteristics of trees and characteristics of holes in trees that have the potential to become hornbill nests, identify hornbill species and count the number of individuals found in potential hornbill nest trees at Ketambe Research Station. This research is descriptive using the direct observation method, namely the potential trees are climbed to observe the characteristics of holes in trees that have the potential to become hornbill nests at Ketambe Research Station. There are 4 tree species that have potential holes as hornbill nests at Ketambe Research Station, namely Shorea leprosula, Dysoxylum alliaceum, Aglaia lawii and Aglaia korthalsii. Characteristics of potential hornbill nest trees have an average trunk diameter of 76.66 cm, the average tree height reaches 29.37 m, the average height free of branches reaches 14.73 m and the average nest height is located at a height of 11.93 m. Characteristics of hornbill nest potential holes have an average door dimension area of 208.4 cm2 and an average nest volume of 153,858.2 cm3. The hornbill species known to visit potential nest trees is the klihingan hornbill (Anorrhinus galeritus) as many as 7 individuals. Key words: characteristic, hole, nest, potential, hornbill.