Abstrak

Baca Juga : PERILAKU MENGKONSUMSI RAYAP (ISOPTERA) OLEH ORANGUTAN SUMATERA (PONGO ABELII) DI STASIUN REINTRODUKSI JANTHO, ACEH BESAR (NABILA, 2017) ,

Baca Juga : PERILAKU BERSARANG ORANGUTAN SUMATERA (PONGO ABELII) DI STASIUN REINTRODUKSI ORANGUTAN JANTHO, KABUPATEN ACEH BESAR (Ilham Fonna, 2015) ,

angutan betina yaitu selama 2-6 menit. ketinggian sarang yang dipilih oleh orangutan jantan berada pada kategori 10+ hingga 25+, sedangkan orangutan betina berada pada kategori 5+ hingga 15+. orangutan jantan lebih dominan menggunakan sarang posisi 1 dan 3, sedangkan orangutan betina baik anak maupun remaja lebih dominan menggunakan sarang posisi 2. jenis pohon yang digunakan untuk membuat sarang yaitu dari famili nyssaceae, moraceae, sapindaceae, myristicaceae, euphorbiaceae, annonaceae, dilleniaceae, sterculiaceae, lauraceae, dan staphyliaceae. kata kunci: orangutan sumatera (pongo abelii) jantan dan betina, perilaku bersarang, reintroduksi, jantho. the research about “comparison of nesting behavior between male and female sumateran orangutan (pongo abelii)” had been done in orangutan reintroduction station of jantho, aceh besar district from mei to september 2018. this research aimed to know the diferences of nesting behavior based on nest comparison between male and female orangutan (pongo abelii). the research was conducted by using the focal animal sampling method. measured parameters were height of nest with a category 5+ (5-10 m), 10+ (10-15 m), 15+ (15-20m), 20+ (20-25 m), 25+ (25-30 m), dan 30+ (30-35 m), the nest position which distinguished to position 0 (on the ground level), 1 (the base of brancing), 2 (at end of branch), 3 (on top of tree), and 4 (located between two trees), and species of trees that used for nesting. the results of research showed that allocation of the nesting time were in male orangutan is during 2 to 5 minutes, and were in female orangutan is during 2 to 6 minutes. height of the nest chosen by male orangutan were in 10+ to 25+, while female orangutan were in 5+ to 15+ category.the male orangutan more dominant using nest at position 1 and 3, while female orangutan both juvenile and adolenscents more dominant using nest at position 2. the tree family included nyssaceae, moraceae, sapindaceae, myristicaceae, euphorbiaceae, annonaceae, dilleniaceae, sterculiaceae, lauraceae, dan staphyliaceae. keywords: sumateran orangutan (pongo abelii) male and female, nesting behavior, reintroduction,

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