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All Journal MEDIA KONSERVASI Jurnal Belantara

Yeni A Mulyani

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Author-ID : 324678

Earth & Planetary Sciences Education Environmental Science

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A Preliminary Study on Avian Diversity at the New City of Kemayoran Airport, Jakarta Yeni A Mulyani; Ani M Pakpahan
Media Konservasi Vol 4 No 2 (1993): Media Konservasi
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

The objective of this study was to reveal the avian divesity at KBBK through direct and indirect obsemtion. Based on a 3 day obsemtion, we found 50 species of birds, consisted of 17 specieswaterbirds, 4 species of marsh birds, 1 species of shorebirds and 28 species of temstrial birds. The species richness was greatly reduced compared to the conditions in 1990 and 1991.

Breeding Success of Edible-Nest Swiftlets in a Man Made Nesting Habitat Ani Mardiastuti; Yeni A Mulyani; Tiurmaida A.C Gultom
Media Konservasi Vol 5 No 2 (1997): Media Konservasi
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

The Edible-nest Swiftlet (Collocalia&ciphaga) has beenreceiving more attention lately due to the fact that this birdproduce an edible nests which fetch a high value in the international market. The original nesting habitat of this species islimestone caves. Since approximately a hundred year ago,people of Java has been successfully farmed the swiftlets inhouses which managed in such a way to resemble natural cavehabitat (Mardiastuti, 1996).There has been no previous study on the breeding ecologyof the Edible-nest Swiftlet in Indonesia, either in natural cavehabitats or in man-made nesting habitat. This paper aims toreveal the breeding success of the species and investigate thepossible causes of the breeding failure in swiftlet houses.

NESTING BEHAVIORAL ADAPTATIONS OF ORANGUTAN (PONGO PYGMAEUS MORIO) IN COAL MINING AREA IN EAST KALIMANTAN Liza Niningsih; Sri Suci Utami Atmoko; Hadi S Alikodra; Yeni A Mulyani
Jurnal Belantara Vol 4 No 2 (2021)
Publisher : Forestry Study Program University Of Mataram

Coal mining changed forest structure and composition, it caused large negative impacts on the orangutan. In order to mitigate those negative effects, it is crucial to understand their nesting behavior adaptation in mining area. We investigated 74 times nested event in coal mining rehabilition area (CMRA) in East Kutai and 123 times in the Kutai National Park (Prevab) from October 2013 to September 2014 and include only night nests. We compared both habitats. Orangutans in CMRA built the nest later than in Prevab and used 15 species of trees as nests sites intensively on Senna siamea and Gmelina arborea. In Prevab, 35 species with the higher frequencies on Eusideroxylon zwageri and Dracontomelon dao. The average diameter of nest trees in CMRA smaller than Prevab. The height of nest trees in CMRA with the highest frequency was in 10.1-15 m, while in Prevab was as in 20.1-25 m. Orangutans in CMRA nested at the height of <15 m, lower than in Prevab was >20 m. Reused nest in CMRA was higher than in Prevab. Orangutans in CMRA more often built nests at the peak and limb, while in Prevab at the limb and peak. Orangutans in CMRA had learned to utilize various species and dimensions of trees as the place to build nests.

Does the Tricolor Langur Truly Have a Specific Habitat in Danau Sentarum Landscape? An Analysis of The Preferences Habitat Using Maximum Entropy Sutopo, Sutopo; Santoso, Nyoto; Mardiastuti, Ani; Mulyani, Yeni A
Media Konservasi Vol. 30 No. 2 (2025): Media Konservasi Vol 30 No 2 May 2025
Publisher : Department of Forest Resources Conservation and Ecotourism - IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/medkon.30.2.362

The tricolored langur (Presbytis cruciger) is not only geographically restricted but is also believed to strongly depend on specific habitat types, particularly wetland ecosystems in northern Borneo. Despite its limited range and potential vulnerability, no comprehensive habitat assessment has been conducted within its distribution area. This study aims to model the habitat suitability of P. cruciger in the Danau Sentarum landscape using environmental variables derived from direct encounter data collected between 2021 and 2023, and analyzed using MaxEnt. Habitat suitability modeling revealed that 95.94% (228,658 ha) of the total study area (238,329 ha) was classified as unsuitable habitat. The remaining areas were categorized as marginally suitable (7,080 ha), suitable (1,977 ha), and highly suitable (614 ha). Highly suitable areas are concentrated in peat swamp forests, riparian forests, and lowland secondary forests located within 1 km of lake edges, extending into the hilly zones of the Danau Sentarum landscape. Among the environmental predictors, land cover contributed the most to the model, though it showed low permutation importance. In contrast, proximity to fire hotspots demonstrated high permutation importance, indicating an avoidance behavior towards fire-prone areas. The species preferred elevations ranging from 100 to 200 meters above sea level, with 8–25% slopes, and proximity to swamp forest and lake ecosystems. These results highlight the species' strong association with wetland ecosystems and underscore the importance of conserving these habitats to ensure its survival.

Co-Authors Ani M Pakpahan Ani Mardiastuti Hadi S Alikodra Liza Niningsih Nyoto Santoso Sri Suci Utami Atmoko Sutopo Sutopo Tiurmaida A.C Gultom

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