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"As indicator for environmental disturbances, the understory is an important structural and functional component of forests ecosystems. Hence, this study was conducted to investigate the diversity and composition of understory plants in the lowland forests adjacent to the trekking paths along Semut Bay (dock entrance) to Segara Anakan Lagoon and some coastal areas in Sempu Island, and to detemine their association with the underlying environmental factors as disturbance indicators by the presence of understory invasive alien species (IAS). Sixty six plots of 2 x 2 m2 were established to analyze the understory vegetation, the site profiles and the environmental variables. A total of 135 understory plant species belonging to 108 genera and 60 families were recorded within the 66 plots of the study areas. Poaceae was the dominant family, followed by Compositae, Phyllanthaceae, Sterculiaceae, Rubiaceae, Putranjivaceae and Cyperaceae. The understory communities in the lowland forest adjacent to Semut Path were dominated by tree seedlings and had a relatively fewer composition of shrubs. Coastal areas, which have more open canopies, were dominated by grasses and shrubs. Some dominant native understory species include Ckistanthus ohlongifolius, Pterocymbium javanicum, lschaemum muticum, Guettarda spedosa, etc. Indicating disturbance, 12 understory IAS were found in the study areas. Four of these are among the world’s worst invaders (Chromolaena odorata, Imperata tylindrica, Lantana camara and Spathodea campanulata), and three are noxious weeds (Cyperus rotundus, Eleusine indica and Imperata cylindricd). The light intensity and air temperature were strongly positively associated with disturbed sites, while relative humidty, soil pH, and elevation were associated with less disturbed sites. These study results provide the scientific basis for management and recommendations on the current diversity status of the understory plant species at Sempu Island, hoping that these would justify further conservation of indigenous species and their protection from these disturbances."

"ABSTRACTMarasmiellus is a tropical and subtropical genus which consists of more than 400 species. The genus plays important roles in ecosystem as a decomposer, and not many information on its economic value. Several monographs of the genus have been published based on morphological data from several tropical forests (neotropics, Africa, Srilanka), and no report on the Indonesian Marasmiellus. At present, taxonomic problem occurs in the genus related to the position of Marasmiellus juniperinus as a type genus in the phylogenetic tree based on Internal Transcribed Spacer (ITS) region. Marasmiellus juniperinus nested into different clade from other Marasmiellus species, and it was clustered in Gymnopus clade. Since Marasmiellus has never been reported from Indonesia and the taxonomic problem occurs at the genus, thus the objectives of this study are 1) To describe the species of Marasmiellus found in Java and Bali; 2) To provide an identification key to sections and species; 3) To analyse the phylogenetic relationship within the genus Marasmiellus in Java and Bali based on morphological and molecular characters performed by Maximum Parsimony method; 4) To clarify the relationship of the genus Marasmiellus and M. juniperinus to its closely related genera with inclusion of more Marasmiellus spp. based on ITS region of rDNA sequence data; and 5) To describe novel species of Marasmiellus based on morphological and molecular data. Java and Bali were chosen as research sites in this study due to several reasons. First, historically most of Indonesian reported agarics were collected from Java, particularly from Mount Gede-Pangrango, Cibodas and Bogor Botanical Gardens. Second, forest degradation is going rapidly in Java and Bali. As a result Indonesia is loosing habitats of Marasmiellus. This study was divided into three topics according to the purposes of this study. The first topic entitled Species of Marasmiellus in Java and Bali. The study was carried out in Herbarium Bogoriense, The Botany Division, Research Center for Biology, The Indonesian Institute of Sciences (LIPI). Herbarium materials are kept in Herbarium Bogoriense (BO) and Harry D. Thiers Herbarium, San Francisco State University (SFSU), SF, CA, USA.Materials used in this research were collected in 1998-2010 from 10 different locations in Java and Bali which consisted of 22 sites. A representative material of Marasmiellus juniperinus, as a type genus, was borrowed from the Herbarium of the University of Tennessee, Knoxville, Tennessee, USA (TENN). The identification results revealed that there were 35 known species; one species as a new combination; 17 undescribed species. Those 35 species consist of 25 species of Marasmiellus found in Java, 7 species found in Bali, and 3 species found both in Java and Bali. All described species were treated based on infrageneric classification of Singer (1973) which divided the genus into 10 sections based on morphological characters.Based on Singer?s infrageneric classification Marasmiellus in Java and Bali belonged to 5 sections, i.e sect. Marasmiellus, sect. Rameales, sect. Dealbati, sect. Candidi, and sect. Stenophylloides. The second topic entitled Phylogenetic study of the genus Marasmiellus based on morphological and molecular analysis. Thirty five morphological characters of 37 taxa were scored manually for phylogenetic analysis based on morphological characters. Those taxa consisted of 35 species of Marasmiellus in Java and Bali found (topic 1), a type species of Marasmiellus (M. juniperinus), and Crinipellis brunneipurpurea as an outgroup. Matrix data was analyzed by Phylogenetic Analysis Using Parsimony (PAUP) program. The topology of phylogenetic tree based on morphological data was compared to topology of phylogenetic tree based on molecular data. The phylogenetic tree based on morphological and molecular characters showed that Marasmiellus spp. were divided into four major clades. Each clade consisted of several Singer?s sections. This result indicated that the sections within Singer?s infrageneric classification were polyphyletic. Morphological and molecular phylogenies resulted in this study did not support traditional classification, i.e. Singer?s classification of Marasmiellus. The phylogenetic relationship of Marasmiellus taxa, Gymnopus and its closely related genera were analyzed using molecular data of ITS rDNA. Forty one sequences based on ITS region representing of 36 species of Marasmiellus were used for phylogenetic analysis. Nine sequences of Marasmiellus were generated from this study, and 32 sequences were obtained from the international DNA database (GenBank). The phylogenetic tree showed that Marasmiellus taxa were divided into 4 clades. The taxa of Marasmiellus and Gymnopus were clustered together in three of four clades. The type species, Marasmiellus juniperinus was located within the same clade as Gymnopus fusipes.This result indicated that the genus Marasmiellus was polyphyletic. The third topic entitled Description of a novel species, Marasmiellus javanicus, based on morphological and molecular analysis. Marasmiellus javanicus is one of the 17 new species in this study, and it was described by using the integrated morphological and molecular data. Marasmiellus javanicus was described as a new species based on 5 specimens found in Bogor Botanical Garden, West Java. Morphologically it was similar to M. hondurensis (Murrill) Singer which was collected from Belice in 1906 by Peck (Singer 1973). The characters similarities of M. javanicus and M. hondurensis were off-white, same size of width, convex with flattened disc of pileus; subdistant lamellae; tomentose and insititious stipe; cutis with diverticulate of pileipellis, and presence of stipe vesture. Marasmiellus hondurensis was different from M. javanicus in having longer stipe (6?22 mm diam), fusoid basidiospores, Rotalis-type of cheilocystidia, and M. hondurensis was found on dicotyledon plant. At present, there is no sequence based on ITS rDNA of M. hondurensis. Thus, genetically M. hondurensis was unable to be compared to M. javanicus. To know the closest species of M. javanicus, phylogenetic tree of Marasmiellus was constructed. Phylogenetic tree showed that the most closely related species to M. javanicus was M. mesosporus. Marasmiellus javanicus and M. mesosporus have ITS rDNA 94% sequence similarity. They differ in 27 nucleotides which were 7 insertion and deletion, and 24 of substitution (A↔G=11, C↔T=13). This study showed that integrated morphological and molecular data are required to identify the Marasmiellus."

"Woman's age of marriage is one of the important proximatedeterminant of fertility. A number of research have been done to explainmarriage patterns across age, cohort, and socioeconomic factors. One ofthe powerful models that often used to explain the marriage pattern isCaale-McNeil model. The purpose of this study is to determine tire Javaand Bali marriage patterns using Coale-McNeil marriage model. Dataused are based on the 1991 Indonesia Demographic and Health Survey.The study shows that there is quite a great variation in mean age of firstmarriage across provinces. it was also found that the mean age of firstmarriage changes across cohorts. Tire younger cohorts tend to marry arunder age. "