20 research outputs found

    Perbandingan Populasi Serangga Permukaan Lantai Hutan Wanariset, Kalimantan Timur

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    YAYUK RAHAYUNINGSIH SUHARDJONO. 1985. Berita Biologi 3 (3): 104 - 107. The study of insect fauna in the primary, secondary and swamp forest floor had been done in the Wanariset forest, East Kalimantan, during tije mid of dry season.September to October 1979. More than 18,000 specimens were collected by pit fall traps. This material consisted of 87 families belonging to 15 ordines. Based on the feeding habits of the insects caught during the study, 325% were phytophagous specks,29.07% predator-parasites, 20.93% decomposers and YIA undetermined species.The high density was shown by Entomobryidae, Sminttraridae and Fonrnkidae

    Ancient landscapes of the Namib Desert harbor high levels of genetic variability and deeply divergent lineages for Collembola.

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    Aim: To assess spatial patterns of genetic and species-level diversity for Namib Desert Collembola using mitochondrial DNA cytochrome c oxidase subunit I (COI) gene sequences. Location: Namib Desert gravel plains. Taxon: Collembola (springtails). Methods: A total of 77 soil samples were collected along NE-SW (60 km) and E-W (160 km) transects from within a 4,000 km2 area of the Namib Desert gravel plains. We extracted 434 springtails from the 37 samples which contained Collembola and sequenced them at the COI gene locus. In the absence of specific taxonomic keys and previous genetic data for these taxa, we used Generalized Mixed Yule Coalescent (GMYC) analyses to provide putative species-level designations. Results: We obtained 341 successful COI sequences, 175 of which were unique haplotypes. GMYC analyses identified 30 putative species, with up to 28% sequence divergence (uncorrected p-distance). The distribution of genetic variants was disjunct, with 97% of haplotypes and 70% of "GMYC species" found only at single sites. Main conclusions: Dispersal events, although rare, may be facilitated by environmental events such as prevailing onshore winds or occasional flow of rainwater to the coast. We conclude that the high genetic diversity we observed is the result of ancient springtail lineages, patchy distribution of suitable habitats, and limited dispersal (gene flow) among habitable locations

    The Etiology of Kidney Failure in Indonesia: A Multicenter Study in Tertiary-Care Centers in Jakarta

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    Background: Despite a large number of patients requiring dialysis, the etiology of kidney failure is poorly documented in Indonesia. With the aim to reduce the disease burden, it is essential to obtain more insight in the etiology of chronic kidney disease (CKD). Objective(s): In the present study, we attempted to investigate the primary renal disease of kidney failure patients from five tertiary-care centers in Jakarta. Methods: This is a multicenter, cross-sectional study of kidney failure patients receiving kidney replacement therapy (KRT), from December 2021 to July 2022. We recruited patients aged ≥18 years, had been receiving dialysis for at least three months or a kidney transplantation. Findings: This study included 1,152 patients treated with hemodialysis (68.1%), peritoneal dialysis (7.5%), and kidney transplantation (24.4%). At the start of KRT, the median (interquartile-range [IQR]) age was 48 [37–58] years with low eGFR (median [IQR]: 5.9 [4.0–8.34] ml/minute/1.73 m2). Hypertension was the main comorbidity (74.2%), followed by diabetes mellitus (30.1%). The major primary kidney disease was diabetic kidney disease (27.2%), followed by glomerulonephritis (13.0%), hypertension (11.5%), and urolithiasis (10.3%). Lupus nephritis was the common underlying etiology of secondary glomerulonephritis (91%). A high rate of unknown cause (31.1%) was also observed. Conclusions: Our results suggest that diabetic kidney disease is the leading cause of kidney failure in Jakarta, followed by glomerulonephritis. This study highlights the need for a better approach on primary prevention of diabetes mellitus as well as to better recognize glomerulonephritis at earlier stage might have a significant impact on reduction of the rate of kidney failure in Indonesia

    Pseudosinella maros sp. n., a troglobitic Entomobryidae (Collembola) from Sulawesi Selatan, Indonesia

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    Volume: 111Start Page: 979End Page: 98

    Arah Pengembangan Biosistematika di Indonesia

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    To be able to see general picture of organism diversity, including their interrelationships, biosystematics is applied. Usefulness of these interrelationships is related to the positions of each of the units, which can be determined only by biosystematics. However, not too many biosystematicist are aware of the usefulness of these interrelationships. To reveal the interrelationships and hierarchy restructurization of the grouping in needed. There are two approaches proposed to do the restructurization : through concept of biosystematics and through biosystematics units. The biosystematic units approach has been selected. In the short term program, identification of biosystematic categories with high priority is suggested to be selected as the units to be handled. ln this respect, it is relevant to the management of agricultural pests and weeds, especially on rice. Special efforts must be given to biotype development, seasonal forms, complex species, and indication of evolutionary tendency of important species. The lack of data and information on these aspects will hinder the roles and function of biosystematics. For long term program, the activities will be focused on the identification of groups andresearch aspects which support their biosystematic endeavour. The suggested high prioritized group is Pyralidae as rice pests, followed by soil insect of agricultural importance, fruit flies of the family Tephtritidae, and horticultural, plantation and wood pests. For health aspect, focusing on sibling and complex species is needed, especially on the vectors of malaria and dengue haemorrhagic fever. Short term program projection is the availability and adequacy of data for treatment in short period. For long term program the formulation for anticipating the impacts of the development on the selected groups. Both of these program projections are also needed by the educational institutions for planning and determining human resources needed for conducting the program

    Dinamika Populasi Collembola Pada Tanaman Kelapa Sawit Di Perkebunan Cikasungka Kabupaten Bogor

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    Collembola is one of the dominant microarthopods in almost all soils types. They have important function in food webs soil ecosystem. This research was done at Cikasungka oil palm plantation for six months (April until September 2014). The aim of the research was to collect the information of diversity abundance and population fluctuations of Collembola, and their linkages between environmental factors. Collembolans were collected based on four points of soil sample from five trees of oil palm which has similar criteria. Distance of 0, 120, 240 cm from the trees, and compost lane were used to collect the samples. Results showed 37 species from 10.438 individuals with a density of 544 individu/m2. The species belongs to 4 orders and 13 families. Result also showed that are fluctuations in the abundance at the sample sites. The highest abundance of Collembolans was found in base tree zone (920 individu/m2) and compost lane (763 individu/m2). During six months, total populations of Isotomid sp. 5 (Isotomidae) was higher than the others species of Collembolans. Based on the correlation analysis, various species of Collembolans are positively correlated with rainfall and soil pH

    May measurement month 2018: an analysis of blood pressure screening results from Indonesia.

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    Elevated blood pressure (BP) is a significant burden worldwide, leading to high cardio-cerebro-reno-vascular morbidity and mortality. For the second year of the May Measurement Month (MMM) campaign in Indonesia in 2018, we recruited 174 sites in 31 out of 34 provinces in Indonesia and screened through convenience sampling in public areas and rural primary health centres. Hypertension was defined as systolic BP ≥140 mmHg or diastolic BP ≥90 mmHg, or both, or on the basis of receiving antihypertensive medication. Blood pressure was measured three times followed the standard global MMM protocol, multiple imputation was used to estimate the mean of the 2nd and 3rd BP readings if these were not recorded. A total of 91 222 individuals were screened, and after multiple imputations, 27 331 (30.0%) had hypertension. Of individuals not receiving antihypertensive medication, 14 367 (18.4%) were hypertensive. Among the 47.4% of hypertensive individuals on antihypertensive medication, 10 106 (78.0%) had uncontrolled BP. MMM17 and MMM18 were still the most extensive standardized screening campaigns for BP measurement in Indonesia. Compared to the previous study, the proportion with uncontrolled BP on medication was significantly higher and provided the substantial challenges in managing hypertension in the rural community
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