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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Sumberdaya Hayati
WIDYASTUTI, SALMAH
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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The Javan Gibbon (Hylobates moloch) Habitat Changes and Fragmentation in the Dieng Mountains, Indonesia Widyastuti, Salmah; Perwitasari-Farajallah, Dyah; Prasetyo, Lilik Budi; Iskandar, Entang
Jurnal Manajemen Hutan Tropika Vol. 29 No. 2 (2023)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.29.2.150

Abstract

The endangered javan gibbon (Hylobates moloch) has been threaten by massive habitat loss and fragmentation in Java. The survival of the second largest population which inhabited unprotected Dieng mountains faced greater risk to habitat conversion and fragmentation. The landscape-level habitat monitoring using spatiotemporal quantification is crucial as a baseline data for javan gibbon conservation. Here, the land-use and land-cover (LULC) change of the Javan gibbon habitat during 1994–2009–2021 and its fragmentation in the Dieng mountains were quantified. This study revealed there were no significant decline in the total of forest. However, its quality was degraded in the interior of forest block. The forest has more fragmented from large patches into smaller patches and increased forest edge. The higher fragmentation happened in the areas that traversed by road. Six suitable forest blocks were identified with varying level of connectivity. Protection and restoration both in the forest and in the interior forest is immediate need, especially in the main forest block. The extra effort is also crucial in the connected forest but traversed by road. The blocks which closely isolated by road could be potentially reconnected by artificial canopy bridge, while the other distantly isolated block might need habitat restoration for corridor.
Kompleksitas Obyek dan Running-Wheel Mempengaruhi Novel Object Recognition Test pada Mencit (Mus musculus) HANIM, NISFA; WIDYASTUTI, SALMAH; ALFIYAN, ACHMAD; AKBAR, MUHAMMAD AZHARI; JULIANDI, BERRY
Jurnal Sumberdaya Hayati Vol. 4 No. 1 (2018)
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.4.1.7-11

Abstract

This research aimed to confirm the tendency of mice to novel object, effect of exercise (in running-wheel) toward memory of mice and to test tendency of mice in avoiding predator signal in novel object. Novel object recognition test (NORT) used to test the memory the day after acquisition phase (NORT I) and memory one week after exercise was given (running-wheel) (NORT II). The result showed that there was no tendency of mice in exploring toward novel object in both NORT I and NORT II. This might happen because the complexity of familiar object higher than novel object, so the familiar object could accommodate more activities. Exercise using running-wheel in mice had an effect on memory, it could be seen in decreasing duration of object exploration time from NORT I to NORT II. There was no tendency in avoiding predator’s signal on novel object which was attached by urine addition (odor signal).
Co-Authors AKBAR, MUHAMMAD AZHARI ALFIYAN, ACHMAD Berry Juliandi DYAH PERWITASARI -FARAJALLAH Entang Iskandar HANIM, NISFA LILIK BUDIPRASETYO