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All Journal REINWARDTIA JURNAL BIOLOGI INDONESIA ZOO INDONESIA
ALEX SUMADIJAYA
Bidang Botani, Puslit Biologi-LIPI Jalan Raya Cibinong Km 46, Cibinong 16911, Jawa Barat
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Other

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FLORISTIC COMPOSITION AND STRUCTURE OF SUBALPINE SUMMIT HABITATS ON MT. GEDE-PANGRANGO COMPLEX, CIBODAS BIOSPHERE RESERVE, WEST JAVA, INDONESIA Sadili, Asep; Kartawinata, Kuswata; Kartonegoro, Abdulrokhman; Soedjito, Herwarsono; Sumadijaya, Alex
REINWARDTIA Vol 12, No 5 (2009): Vol. 12, No. 5
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (523.024 KB) | DOI: 10.14203/reinwardtia.v12i5.88

Abstract

SADILI, A., KARTAWINATA, K., KARTONEGORO, A., SOEDJITO, H. & SUMADIJAYA, A. 2009. Structure and composition of subalpine summit habitats on Mt. Gede-Pangrango complex, Cibodas Biosphere Reserve, West Java, Indonesia. Reinwardtia  12 (5): 391–404.  We undertook a phytosociological analysis of the subalpine herbaceous and shrubby vegetation at the Mandalawangi and Suryakencana meadows and the scrub at the Crater Side at the tops of Mt. Gede and Mt. Pangrango in the Cibodas Biosphere Reserve. We recorded 30 species of 18 families of saplings, shrubs, seedlings and herbs in 78 quadrats with a total area of 7,800 m2. Anaphalis javanica, a woody tall herb and long-lived pioneer was the dominant species in the sapling and shrub stratum, while Isachne pangerangensis, Tripogon exiguus and Carex verticillata were prevalent in the seedling and herb stratum at Mandalawangi and Suryakencana. Stunted shrub is Vaccinium varingaeifolium, dominant in the Crater Side scrub. Based on the importance values, the Mandalawangi meadow may be designated as the Anaphalis javanica-Isachne pangerangensis community type, the Suryakencana meadow as Anaphalis javanica-Tripogon exiguus community type and the Crater Side scrub as Vaccinium varingiaefolium-Seliguea feei community type. The similarity indices between Mandalawangi and Suryakencana community types were very high (>75 %) while those between the Crater Side and Mandalawangi and the Crater Side and Suryakencana were very low (<10 %). Poor soil conditions and fire seem responsible for the perpetual existence of A. javanica.
NOTES ON BOTHRIOCHLOA KUNTZE (GRAMINEAE: ANDROPOGONEAE) IN MALESIA Sumadijaya, Alex; Veldkamp, Jan Frits
REINWARDTIA Vol 12, No 5 (2009): Vol. 12, No. 5
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (58.053 KB) | DOI: 10.14203/reinwardtia.v12i5.78

Abstract

SUMADIJAYA, A. & VELDKAMP, J.F. 2009. Notes on Bothriochloa Kuntze (Gramineae: Andropogoneae) in Malesia. Reinwardtia 12(5): 415 – 417. — The note is preliminary part for studies of Bothriochloa Kuntze in Malesia. Special caution should be given to Bothriochloa intermedia (R. Br.) A. Camus, now B. bladhii (Retz.) S.T. Blake, because of the variation, synonyms, and natural hybridization to generic level.
Non Bambusoid grasses (Gramineae) from Raja Ampat Archipelago, Papua Barat Province, Indonesia Sumadijaya, Alex; Veldkamp, Jan Frits
REINWARDTIA Vol 13, No 3 (2012): Vol. 13 No. 3
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/reinwardtia.v13i3.445

Abstract

Thirty two species of non-bambusoid grasses from 28 genera were recorded for the Raja Ampat Archipelago, Papua Barat Province, Indonesia, mostly from secondary forest. The result was compiled from Widya Nusantara Expedition (EWIN), Takeuchi (2003), and Van Royen (1960). This is a first attempt to record non-bambusoid grasses for a remote archipelago in Indonesia.
A. Six years experience on plant identification services: a case study in Herbarium Bogoriense Sumadijaya, Alex
REINWARDTIA Vol 13, No 4 (2012): Vol. 13 no. 4
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (966.401 KB) | DOI: 10.14203/reinwardtia.v13i4.438

Abstract

The Herbarium Bogoriense (BO), an integrated part of the Botanical Division, Research Center for Biology, Indonesian Institute of Sciences, receives plant specimens to be identified on a daily basis.  In a six year period from 2005 to 2010, data were extracted from thousand of identification requests by hundreds of clients. Patterns were observed based on variables such as time, plant groups, client expertises, and taxonomic level.  Outputs from these analysis are being expected to become one of the pillar to build a unifying scheme for botanical research at the Herbarium Bogoriense by focusing on human resources development to deal with biodiversity issues about frequently encountered taxa.
SEBARAN DAN HABITAT KUKANG JAWA (Nycticebusjavanicus) DI LAHAN PERTANIAN (HUTAN RAKYAT) WILAYAH KABUPATEN LEBAK (BANTEN) DAN GUNUNG SALAK (JAWA BARAT) Wirdateti, Wirdateti; Dahrudin, Hadi; Sumadijaya, Alex
ZOO INDONESIA Vol 20, No 1 (2011): Juli 2011
Publisher : Masyarakat Zoologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (7836.182 KB)

Abstract

Abstrak
Komunitas Kodok pada Lahan Terdegradasi di Areal Curug Nangka, Jawa Barat Kurniati, Hellen; Sumadijaya, Alex
JURNAL BIOLOGI INDONESIA Vol 8, No 2 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v8i2.3043

Abstract

Frogs communities of degraded areas in Curug Nangka area, West Java. A Total of thirteenfrog species were found in degraded land areas of Curug Nangka, on the foot hills of MountSalak at elevation of 640 m - 730 m above sea level (asl). In the fast-flowing river habitat, threefrog species dominated this habitat, they were Huia masonii, Hylarana chalconota andOdorrana hosii; whereas in fast-flowing ditch habitat, Phrynoidis aspera and H. chalconotawere the dominant species, and for the pine plantation, H. chalconota and H. nicobariensisdominated this habitat. On the river transect, the presence of individuals H. masonii wasinfluenced by the dynamics of air temperature and water temperature. In the open ditchtransects, the presence of individual P. aspera was influenced by water temperature. Therewas a stronger positive association between the presence of individuals H. masonii andindividuals of O. hosii than between individual O. hosii and H. chalconota on the rivertransect. Among individuals of H. masonii and individuals of H. chalconota there was apositive association; however in the open ditch transects, there was no association betweenthe presence P. aspera and H. chalconota. The presence of H. chalconota and H. nicobariensison the pine plantation transect had strong positive association.Keywords: frog community, degraded area.
KOMUNITAS KODOK PADA LAHAN TERDEGRADASI DI AREAL CURUG NANGKA, JAWA BARAT Kurniati, Hellen; Sumadijaya, Alex
JURNAL BIOLOGI INDONESIA Vol 8, No 2 (2012): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v8i2.3043

Abstract

Frogs communities of degraded areas in Curug Nangka area, West Java. A Total of thirteenfrog species were found in degraded land areas of Curug Nangka, on the foot hills of MountSalak at elevation of 640 m - 730 m above sea level (asl). In the fast-flowing river habitat, threefrog species dominated this habitat, they were Huia masonii, Hylarana chalconota andOdorrana hosii; whereas in fast-flowing ditch habitat, Phrynoidis aspera and H. chalconotawere the dominant species, and for the pine plantation, H. chalconota and H. nicobariensisdominated this habitat. On the river transect, the presence of individuals H. masonii wasinfluenced by the dynamics of air temperature and water temperature. In the open ditchtransects, the presence of individual P. aspera was influenced by water temperature. Therewas a stronger positive association between the presence of individuals H. masonii andindividuals of O. hosii than between individual O. hosii and H. chalconota on the rivertransect. Among individuals of H. masonii and individuals of H. chalconota there was apositive association; however in the open ditch transects, there was no association betweenthe presence P. aspera and H. chalconota. The presence of H. chalconota and H. nicobariensison the pine plantation transect had strong positive association.Keywords: frog community, degraded area.
Co-Authors Abdulrokhman Kartonegoro, Abdulrokhman Asep Sadili, Asep Hadi Dahrudin, Hadi Hellen Kurniati, Hellen Herwarsono Soedjito, Herwarsono Jan Frits Veldkamp, Jan Frits Kuswata Kartawinata Wirdateti Wirdateti, Wirdateti