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THE EFFECT OF LAND USE HISTORY ON NATURAL FOREST REHABILITATION AT CORRIDOR AREA OF GUNUNG HALIMUN SALAK NATIONAL PARK, WEST JAVA INDONESIA Rosleine, Dian; Suzuki, Eizi; Sundawiati, Atih; Septiana, Wardi; Ekawati, Desy
REINWARDTIA Vol 14, No 1 (2014): Vol. 14 No. 1
Publisher : Research Center for Biology

Corridor area of Gunung Halimun Salak National Park was degraded and fragmented by human activities. However, little is known about recovery process in tropical degraded forest under different land use history. To clarifyvegetation structure and forest recovery related to land use history we placed 22 plots (11 of 10 x 10 m2 in abandoned plantation and 11 of 20 x 20 m2 in secondary forest, respectively). DCA (Detrended correspondence analysis) discriminated the plots into three community groups. Swieteniamacrophylla âAgathisdammaa community in abandoned plantation where had a land use history of clear felling.MaesopsiseminiiâCyathea spp. community had a history of severe human disturbance. Fagaceae-Schimawallichii was in less disturbed forest. Below the plantation canopy, light tolerant species, weeds, grasses, and fern of Dicranopteris linearis were dominant. Some exotic plants spread to the disturbed forest. The less disturbed forest in distant area from village remained in good condition as indicated by dominancy of old forest species. For the forest rehabilitation in severely degraded area, human intervention by planting native species can be suggested to avoid invasive species occupancy as well as accelerate forest recovery.

Plukenetia volubilis L.: A New Record of a Cultivated Alien Species in Java Tianara, Alexander; Handayani, Windri; Irsyam, Arifin Surya Dwipa; Hariri, Muhammad Rifqi; Dewi, Asih Perwita; Peniwidiyanti, Peniwidiyanti; Baidlowi, Muhammad Hisyam; Rosleine, Dian; Atria, Mega
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 1 (2024): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.84523

Plukenetia volubilis L. has been documented as a new record for the first time in Java, Indonesia. The species is easily distinguished from the native species, P. corniculata Sm., by its exstipellate basilaminar-glands, long cylindrical column, and wingless fruit-lobes. Plukenetia volubilis is cultivated mainly in South America for its beneficial values as food and medicine and was recently introduced to Asia. However, its occurrence in Java has not been reported. We collected specimens from West Java (Depok City, Bandung Barat and Sumedang Regency) and East Java (Malang Regency). Morphological description, identification key, and photographs of the species are provided.

Ecological Study of Bidens pilosa in Bandung, West Java, Indonesia Oktaviant, Dimas Panji; Rosleine, Dian
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 3 (2024): September
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.88675

Bidens pilosa has been widely distributed from tropical to temperate regions and is often reported as a weed in agriculture. It readily thrives in various environments, naturally spreading to open areas and artificial ecosystems, establishing new populations, emphasising the need for ecological studies to prevent its invasive potential. In this study, we focused on population study of B. pilosa and its distribution in Bandung as urban area. Survey was conducted using 1x1 m quadrate plots in eight locations (24 plots). Individual number of B. pilosa, the number of flowers in each individual, coordinates, and altitude of each plot were recorded to describe population structure and map this population in Bandung. Air temperature (°C), humidity (%), light intensity (Lux), and soil water content (%) were measured. Individual number and environmental condition are analysed using cluster analysis and PCA, then mapped using IDW (Inverse Distance Weighting). The highest population in AR (652 ind), followed by CG (626 ind), TR (253 ind), PA (135 ind), CW (78 ind), NR (39 ind), PU (28 ind), and PR (20 ind). On average, each B. pilosa individual produces 61 inflorescences, indicating a mature population with all developmental stages present across all locations. Ordination plots shows that B. pilosa has wide range of environmental condition from open to shade area with various environmental condition. Open areas, settlements, and agriculture host dense B. pilosa populations, and its biological traits suggest it may become invasive without proper control.

Fungsi Taman Kota Untuk Mitigasi Dampak Urban Heat Island di Kota Bandung: Ecological Function of Forest Park to Mitigate Urban Heat Island in Bandung Rosleine, Dian; Irfani, Arka
Jurnal Sumberdaya Hayati Vol. 6 No. 1 (2020)
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.6.1.1-7

Forest parks can take a role in mitigating negative impact of Urban Heat Island. Therefore, this study was conducted to clarify ecological function of three forest parks i.e Ganesha, Maluku, and Tegalega forest park in mitigating Urban Heat Island. Land classification and surface temperature were determined by analyzing Landsat 8 image with QGIS. Air temperature was measured by mobile station through north-south and east-west of Bandung City area. There are four types of land classification in Bandung as follows: settlements, water body, bare soil, and vegetation. In Bandung City, vegetation cover is around 20.72%; surface temperatures in the afternoon varies from 23 to 39.6°C, while during the night air temperatures varies from 20.5 to 24.9°C. Northern part of Bandung tends to have cooler air temperature due to high coverage of vegetation. Tegalega forest park can reduce temperature up to 2.6°C, while in Maluku forest park is 1.98°C and Ganesha forest park is 0.75°C. Therefore, the existence of forest parks is important in urban area because they can take a part to reduce negative impact of Urban Heat Island.

Praxelis (Asteraceae: Eupatorieae), A Newly Naturalised Genus for Kalimantan and Sumatra, Indonesia Hariri, Muhammad Rifqi; Irsyam, Arifin Surya Dwipa; Lestari, Ria Windi; Peniwidiyanti, Peniwidiyanti; Rahmaningtiyas, Lutfi; Zulkarnaen, Rizmoon Nurul; Widjaya, Aulia Hasan; Saripudin, Saripudin; Latifah, Dian; Yuliyanto, Ponco; Budianti, Noviana; Suhaya, Yoyo; Rosleine, Dian; Sulistyawati, Endah
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 4 (2024): December
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.90595

The southern American genus Praxelis Cass. has 18 species. In Singapore and Indonesia, notably Java, P. clematidea R.M.King & H.Rob. has naturalised. The first record in Indonesia was in Bogor in 2018, although it is unverified elsewhere. Praxelis clematidea was found in Bangka, Belitung, Jambi, Lampung, and Palangka Raya during our exploratory field research in 2020–2023. The naturalised populations proliferate in roadsides, ditches, open spaces, and disturbed areas. It thrives in a small swampy peat environment in Palangka Raya. Praxelis clematidea has been found outside Java, suggesting it could become an invasive alien species in Kalimantan and Sumatra.

Hanguana rubinea Škorničk. & P.C.Boyce (Hanguanaceae), a new record for Indonesia Irsyam, Arifin; Galingging, Ades; Wijaya, Kesuma; Dewi, Asih; Peniwidiyanti; Anshori, Zakaria; Hariri, Muhammad; Rosleine, Dian; LeoNG-Škornickova, Jana
Reinwardtia Vol. 24 No. 1 (2025): Reinwardtia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/reinwardtia.2025.595

IRSYAM, A. S. D., GALINGGING, A., WIJAYA, K., DEWI, A. P., PENIWIDIYANTI, AL ANSHORI, Z., HARIRI, M. R., ROSLEINE, D. & LEONG-ŠKORNIČKOVÁ, J. 2025. Hanguana rubinea Škorničk. & P.C.Boyce (Hanguanaceae), a new record for Indonesia. Reinwardtia 24(1): 33‒39. — Hanguana rubinea Škorničk. & P.C.Boyce, originally described from and reported to be endemic to Singapore, has been discovered on Batam, Riau Islands, Sumatra and is reported here as a new record for Indonesia. The distinguishing features of H. rubinea include the silky indumentum on the abaxial surface of its leaves, the striking ruby-red hue of fruits, and the unique bowl-shaped seeds. Description and colour plates prepared from the ripe fruiting material in Batam are included together with additional notes and a map reflecting the current distribution of this species

Hanguana rubinea Škorničk. & P.C.Boyce (Hanguanaceae), a new record for Indonesia Irsyam, Arifin; Galingging, Ades; Wijaya, Kesuma; Dewi, Asih; Peniwidiyanti; Anshori, Zakaria; Hariri, Muhammad; Rosleine, Dian; LeoNG-Škornickova, Jana
Reinwardtia Vol. 24 No. 1 (2025): Reinwardtia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/reinwardtia.2025.595

IRSYAM, A. S. D., GALINGGING, A., WIJAYA, K., DEWI, A. P., PENIWIDIYANTI, AL ANSHORI, Z., HARIRI, M. R., ROSLEINE, D. & LEONG-ŠKORNIČKOVÁ, J. 2025. Hanguana rubinea Škorničk. & P.C.Boyce (Hanguanaceae), a new record for Indonesia. Reinwardtia 24(1): 33‒39. — Hanguana rubinea Škorničk. & P.C.Boyce, originally described from and reported to be endemic to Singapore, has been discovered on Batam, Riau Islands, Sumatra and is reported here as a new record for Indonesia. The distinguishing features of H. rubinea include the silky indumentum on the abaxial surface of its leaves, the striking ruby-red hue of fruits, and the unique bowl-shaped seeds. Description and colour plates prepared from the ripe fruiting material in Batam are included together with additional notes and a map reflecting the current distribution of this species

SPATIAL DISTRIBUTION OF INVASIVE PLANTS IN BANDUNG, WEST JAVA, INDONESIA Rahmawati, Rahmawati; Rosleine, Dian
BIOTROPIA Vol. 30 No. 2 (2023): BIOTROPIA Vol. 30 No. 2 August 2023
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2023.30.2.1780

The urban area is a source of invasive plants that enter through human activities such as agriculture and land-use conversion. Studying the invasive plant in urban areas is essential to understanding the city’s ecosystem health condition. Therefore, this study aims to inventory invasive plants, map their distribution, and explain the relationship between land use with the community diversity and species richness of invasive plants in Bandung. The vegetation analysis was performed using line-transect in 22 study sites distributed using a systematic random sampling method in Bandung to observe the plant species composition. The study plots were placed based on the land-use type. The species name, individual number, frequency, and sampling site locations were noted and analyzed to calculate the important value index (IVI) and the invasive species distribution pattern using the principal component analysis (PCA). The dominant invasive species was spatially mapped. Six types of land use were used in this study, i.e., settlements, street green lanes, gardens, paddy fields, urban parks, and urban forests. There were 187 species found in Bandung, which can be categorized into alien invasive species (39%), invasive native plants (25%), non-invasive alien species (18%), non-invasive native species (15%), and unidentified plants (3%). The most common invasive plants found were Eleusine indica (IVI=10.50%), Trimezia martinicensis (IVI=7.22%), and Cyperus rotundus (IVI=6.74%). Based on the plant community similarity index, the study area with the highest similarities were paddy fields with gardens (50.5%), settlements with road lanes (44.4%), urban parks with road lanes (26.2%), and urban forests with road lane (17.5%). PCA showed Swietenia macrophylla as the most common invasive plant found in urban forests, urban parks, and road lanes, with air humidity as the most influencing environmental factor. Trimezia martinicensis is the most common species in the settlement area affected by high air humidity. Bidens pilosa is an invasive plant commonly found on paddy fields, gardens, settlements, road lanes, and urban park edges. This species can easily and rapidly reproduce with a high survival rate. The many invasive plants found in Bandung must be managed to maintain the urban ecosystem’s health.

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