Browsing J - Forestry by Author "Rayadin, Yaya"
Now showing items 1-18 of 18
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Brief Communication: Body Mass of Wild Bornean Orangutans Living in Human-Dominated Landscapes: Implications for Understanding Their Ecology and Conservation
Rayadin, Yaya; Spehar, Stephanie N. (AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 157:339–346 (2015), 2015-02-13)Body mass is a key determinant of a species’ ecology, including locomotion, foraging strategies, and energetics. Accurate information on the body mass of wild primates allows us to develop explanatory models for relationships ... -
Comparing spatial capture–recapture modeling and nest count methods to estimate orangutan densities in the Wehea Forest, East Kalimantan, Indonesia
Spehar, Stephanie N.; Loken, Brent; Rayadin, Yaya; Royle, J. Andrew (Biological Conservation 191 (2015) 185–193, 2015-11)Accurate information on the density and abundance of animal populations is essential for understanding species' ecology and for conservation planning, but is difficult to obtain. The endangered orangutan (Pongo spp.) is ... -
A Comparison of Hylobatid Survey Methods Using Triangulation on Müller’s Gibbon (Hylobates muelleri) in Sungai Wain Protection Forest, East Kalimantan, Indonesia
Gilhooly, Lauren J.; Rayadin, Yaya; Cheyne, Susan M. (American Journal of Primatology June 2015, Volume 36, Issue 3, pp 567–582, 2015-05-24)Density estimates are a common tool for assessing potential changes in primate populations over time and for evaluating important habitat characteristics such as preferred food sources. There are several different methods ... -
Habitat use of Bornean Orangutans (Pongo pygmaeus morio) in an Industrial Forestry Plantation in East Kalimantan, Indonesia
Spehar, Stephanie N.; Rayadin, Yaya (International Journal of Primatology April 2017, Volume 38, Issue 2, pp 358–384, 2017-04)Many primates now live in anthropogenic landscapes dominated by human activity such as agriculture. Conserving primates in such contexts requires detailed information about habitat use, including landscape features that ... -
Individual variation in nest size and nest site features of the Bornean orangutans (Pongo pygmaeus)
Rayadin, Yaya; Saitoh, Takashi (American Journal of Primatology - Wiley-Liss, Inc., 2009-02-10)Nest construction is a daily habit of independent orangutans for sleeping or resting. Data on their nests have been used in various ecological studies (e.g., density estimation, ranging behavior, evolution of material ... -
KEHADIRAN DAN KERAGAMAN HERBA-LIANA SEBAGAI SUMBER PAKAN SATWA LIAR DI KAWASAN REKLAMASI PASCATAMBANG BATUBARA PT KIDECO JAYA AGUNG, PASER, KALIMANTAN TIMUR
Rohmadi, Slamet; Rayadin, Yaya; Matius, Paulus; Ruslim, Yosep (JURNAL Penelitian Ekosistem Dipterokarpa Vol. 4 No. 2, Desember 2018: 71-82, 2018-12-09)Kegiatan pemulihan fungsi kawasan ekosistem pasca tambang dilakukan melalui kegiatan reklamasi dan revegetasi lahan. Penilaian keberhasilan kegiatan reklamasi dan revegetasi selama ini hanya didasarkan pada pertumbuhan dan ... -
Kehadiran Dan Keragaman Herba-Liana Sebagai Sumber Pakan Satwa Liar Di Kawasan Reklamasi Pascatambang Batubara PT Kideco Jaya Agung, Paser, Kalimantan Timur
Rayadin, Yaya; Ruslim, Yosep; Matius, Paulus; Rohmadi, Slamet (2018)Kegiatan pemulihan fungsi kawasan ekosistem pascatambang dilakukan melalui kegiatan reklamasi dan revegatasi lahan. Penilaian keberhasilan kegiatan reklamasi dan revegetasi selama ini hanya didasarakan pada pertumbuhan dan ... -
Mammalian communities as indicators of disturbance across Indonesian Borneo
Cheyne, Susan M.; Sastramidjaja, Wiwit Juwita; Muhalir; Rayadin, Yaya; Macdonald, David W. (Global Ecology and Conservation 7 (2016) 157–173, 2016-07-15)Using camera traps at eight grids across Indonesian Borneo we show how mammalian species assemblages can provide reliable information about how disturbance affects a forest. This enables us to use the large mammal community ... -
Occupancy patterns of ungulates and pig-tailed macaques across regenerating and anthropogenic forests on Borneo
Rayadin, Yaya (Hystrix, the Italian Journal of Mammalogy, 2019-11-26)Large seed dispersers play a key role in maintaining and restoring tree species diversity in tropical forests. These taxa may also represent important food sources for sympatric carnivores. Therefore, their occurrence and ... -
PEMANFAATAN SUMBER DAYA HUTAN OLEH MASYARAKAT DI SEKITAR TAMAN NASIONAL KUTAI
Rahmah; Rayadin, Yaya; Aipassa, Marlon I. (Jurnal AGRIFOR Volume XVIII Nomor 2, Oktober 2019, 2019-10)Pemanfaatan Sumber Daya Hutan oleh Masyarakat di Sekitar Taman Nasional Kutai. Kondisi masyarakat di sekitar TN Kutai perlu mendapat perhatian karena bisa berpengaruh terhadap kondisi TN Kutai baik langsung maupun tidak ... -
PENGEMBANGAN BONTANG MANGROVE PARK SEBAGAI MODEL PERLINDUNGAN EKOSISTEM MANGROVE DI TAMAN NASIONAL KUTAI DAN DAMPAKNYA TERHADAP PERUBAHAN TUTUPAN LAHAN
Harjanto, Eko; Rayadin, Yaya; Aipassa, Marlon I.; Ruslim, Yosep (JURNAL Penelitian Ekosistem Dipterokarpa Vol.5 No.1 Juli 2019 21-29, 2019-12-11)Penelitian ini dilaksanakan di kawasan hutan mangrove Taman Nasional Kutai yang diberi nama Bontang Mangrove Park, sebagai kawasan wisata alam yang bertujuan untuk perlindungan terhadap ekosistem mangrove di Kota Bontang. ... -
PERILAKU BERSARANG ORANGUTAN MORIO (Pongo pygmaeus morio) PADA HABITAT DI SEKITAR SUNGAI SANGATA KANAN
Hermawan, Zheri; Rayadin, Yaya; Matius, Paulus; Ruslim, Yosep (JURNAL Penelitian Ekosistem Dipterokarpa Vol.5 No.1 Juli 2019 11-20, 2019-12-30)Perubahan lanskap hutan alami akibat aktifitas pembangunan ekonomi maupun bencana kebakaran hutan memberi dampak kepada keberadaan habitat dan populasi Orangutan morio (Pongo pygmaeus morio). Kawasan hutan yang menjadi ... -
Population mapping of gibbons in Kalimantan, Indonesia: correlates of gibbon density and vegetation across the species’ range
Cheyne, Susan M.; Gilhooly, Lauren J.; Hamard, Marie C.; Höing, Andrea; Houlihan, Peter R.; Kursani; Loken, Brent; Phillips, Abigail; Rayadin, Yaya; Capilla, Bernat Ripoll; Rowland, Dominic; Sastramidjaja, Wiwit Juwita; Spehar, Stephanie; Thompson, Claire J. H.; Zrust, Michal (Endang Species Res 30: 133–143, 2016, 2016-05-31)The first comprehensive survey of gibbons (Hylobates spp.) across Indonesian Borneo was carried out over 3 years to (1) determine whether densities of gibbon species are correlated with vegetation characteristics, and ... -
PREFERENSI HABITAT BERDASARKAN DISTRIBUSI SPASIAL HERPETOFAUNA DI KAWASAN PERTAMBANGAN BATUBARA PT SINGLURUS PRATAMA, KALIMANTAN TIMUR
Muslim, Teguh; Rayadin, Yaya; Suhardiman, Ali (2018-03-01)Preferensi habitat berdasarkan distribusi spasial herpetofauna di Kawasan Pertambangan Batubara PT Singlurus Pratama, Kalimantan Timur. Komunitas herpetofauna terbentuk karena adanya kesesuaian habitat atau proses adaptasi ... -
Prilaku & Konflik Orangutan di Kawasan Perkebunan Kelapa Sawit
Rayadin, Yaya (2014-04) -
Strategi restorasi ekologi dalam konservasi satwa liar di kawasan hutan tropis terfragmentasi
Rayadin, Yaya (Balai Besar Penelitian Dipterokarpa | 978-602-9096-07-1 | , 2013, 2013-10-22) -
Terrestriality in the Bornean Orangutan (Pongo pygmaeus morio) and Implications for Their Ecology and Conservation
Loken, Brent; Spehar, Stephanie; Rayadin, Yaya (American Journal of Primatology 75:1129–1138 (2013), 2013-09-20)Aside from anecdotal evidence, terrestriality in orangutans (Pongo spp.) has not been quantified or subject to careful study and important questions remain about the extent and contexts of terrestrial behavior. Understanding ... -
Unexpected Ecological Resilience in Bornean Orangutans and Implications for Pulp and Paper Plantation Management
Meijaard, Erik; Guillaume, Albar; Nardiyono; Rayadin, Yaya; Ancrenaz, Marc; Spehar, Stephanie (Plos One, 2010-09-22)Ecological studies of orangutans have almost exclusively focused on populations living in primary or selectively logged rainforest. The response of orangutans to severe habitat degradation remains therefore poorly understood. ...