Asep Sadili

Bio: Asep Sadili is an academic researcher from Indonesian Institute of Sciences. The author has contributed to research in topics: Species diversity & Basal area. The author has an hindex of 4, co-authored 14 publications receiving 48 citations.

Keanekaragaman, Persebaran dan Pemanfaatan Jenis-Jenis Anggrek (Orchidaceae) di Resort Citorek, Taman Nasional Gunung Halimun-Salak, Jawa Barat

Abstract: Diversity, distribution, and utilization of orchids have been studied on the mountains of Halimun-Salak National Park. Samples were taken from Citorek Resort with focused exploration on Citorek, Lebaktugu, Cinakem, Cibedug, and Ciawitali areas. The total,of 107 species belonging to 46 genera were recorded. As many as 27 species were recorded as javanese endemic species of Indonesian islands. Most species have no economic value and only a few orchids have been cultivated. The Calanthe, Cymbidium, Phaius and Renanthera have been used for cross breeding.

Struktur dan komposisi jenis tumbuhan herba dan semai pada habitat satwa herbivor disuaka marga s atwa cikepuh,sukabumi, jawabarat

Abstract: The research was conducted to study the structure and composition of herbaceous and seedling communities (understorey species)occurred on herbivore habitat within Cikepuh wildlife sanctuary. A series of 25 plots of 1 m x 1 m each with an interval of 5 m were used to establish a species-area relationship. The proportion (percentage) of canopy (leaf) coverage of each species occurred within the sampling plots to the sampled soil surface area was measured. A total of 54 species belonging to 47 genera and 29 families occurred in the 25 plots develoved, with the species diversity index (value) of 2.09 using the Shannon Wiener formula. Nine species were categorized as herbaceous plants (16.67 %) while the other 45 species were categorized as seedlings (83.33 %). The average density measured was 39 individuals/m or c. 386.400 individuals/ha. The most dominant family is Euphorbiaceae (possessing 5 diffrent species) while the most dominant species is Urochloa subquadripara (Poaceae) with and importance value of 96.08%.

Struktur Sebaran dan Tata Ruang Anggrek Epifit (Orchidaceae) di Hutan Pantai Cagar Alam Pulau Sempu Malang, Jawa Timur

Abstract: Penelitian ini bertujuan untuk mengetahui struktur, sebaran, dan tata ruang jenis-jenis anggrek epifit yang ada di hutan pantai Cagar Alam Sempu, Malang, Jawa Timur. Penelitian menggunakan plot memanjang 10 m x 1.000 m (1 ha), yang dibagi menjadi 100 anak plot. Letak plot dari Pantai Semut ke arah Pantai Sumber Air Tawar. Seluruh jenis anggrek epifit dalam plot dicatat dan dihitung jumlahnya (rumpun). Hasil menunjukkan terdapat empat jenis dari tiga marga, dengan kerapatan 77 rumpun/ha. Jenis dominan adalah Taeniophyllum cf. biocellatum, diikuti Dendrobium subulatum , Grosourdya appendiculata, dan Dendrobium crumenatum. Pola tata ruang sebaran berdasarkan tiga parameter indeks dan uji chi-square bagi setiap jenis menunjukkan adanya pola acak. Structure, Distribution, and Spatial Patterns of Epiphytic Orchids (Orchidaceae) at Coastal Forest of the Sempu Island Nature Reserve, Malang, East Java Abstract The aim of this study is to know the structure, spatial pattern, and distribution of epiphytic orchids in coastal forest Sempu Nature Reserve, Malang, East Java. This study used an elongated plot of 10 m x 1.000 m (1 ha), and was divided into 100 subplots. The location of plot was from Semut Beach to the direction of Sumber Air Tawar Beach. All the epiphytic orchids species of inside plot were recorded and counted (clumps). The results showed that there was four species from three genera with density of 77 clumps/ha. The most dominant species was Taeniophyllum cf. biocellatum, followed by Dendrobium subulatum, Grosourdya appendiculata, and Dendrobium crumenatum. Spatial pattern of distribution based on three parameter indices, and chi-square test showed that every species showed a random pattern.

What Drives Academic Data Sharing

Abstract: Despite widespread support from policy makers, funding agencies, and scientific journals, academic researchers rarely make their research data available to others. At the same time, data sharing in research is attributed a vast potential for scientific progress. It allows the reproducibility of study results and the reuse of old data for new research questions. Based on a systematic review of 98 scholarly papers and an empirical survey among 603 secondary data users, we develop a conceptual framework that explains the process of data sharing from the primary researcher’s point of view. We show that this process can be divided into six descriptive categories: Data donor, research organization, research community, norms, data infrastructure, and data recipients. Drawing from our findings, we discuss theoretical implications regarding knowledge creation and dissemination as well as research policy measures to foster academic collaboration. We conclude that research data cannot be regarded a knowledge commons, but research policies that better incentivize data sharing are needed to improve the quality of research results and foster scientific progress.

The Tropical managed Forests Observatory: a research network addressing the future of tropical logged forests

Abstract: While attention to logging in the tropics has been increasing, studies on the long-term effects of silviculture on forest dynamics and ecology remain scare and spatially limited Indeed, most of our knowledge on tropical forests arise from studies carried out in undisturbed tropical forests This bias is problematic given that logged and disturbed tropical forests are covering now a larger area than the so-called primary forests The Tropical managed Forests Observatory (TmFO), a new network of permanent sample plots in logged forests, aims to fill this gap by providing unprecedented opportunities to examine long-term data on the resilience of logged tropical forests at regional and global scales TmFO currently includes 24 experimental sites distributed across three tropical regions, with a total of 536 pem1anent plots and about 1200 ha of forest inventories In this paper we will present the main results generated by the network on the impact of logging on Carbon and timber recovery, as well as biodiversity changes in the Amazon basin and South East Asia

Keragaman jenis tumbuhan bawah pada berbagai tegakan hutan tanaman di benakat, sumatera selatan

Abstract: Penelitian keragaman jenis tumbuhan bawah pada beberapa tegakan hutan tanaman dilakukan di Benakat, Sumatera Selatan. Penelitian ini bertujuan untuk mengetahui komposisi dan keragaman jenis tumbuhan bawah pada 4 (empat) jenis tegakan hutan tanaman, yaitu mahoni (Swietenia machropylla), pinus (Pinus merkusii), sungkai. Pengambilan sebanyak 20 petak contoh per jenis tegakan, dengan 2m x 2m. Keragaman jenis tumbuhan bawah tertinggi pada tegakan mahoni, sedangkan terendah pada tegakan seru. Perbedaan jenis tanaman pokok mempengaruhi struktur, dominasi dan keragaman jenis tumbuhan bawah. Keragaman jenis tumbuhan bawah tidak menunjukkan adanya hubungan yang nyata dengan paramater kualitas tanah, namun demikian kelimpahan katoman (Peronema canescens), dan seru (Schima walichii). data menggunakan metode purposive sampling ukuran dan alang-alang berpotensi untuk dijadikan indikator terhadap kandungan C Organik dan N Total (Chromolaena odorata) (Imperata cylindrica).

CHECKLIST ON FAUNA DIVERSITY GUNUNG HALIMUN SALAK NATIONAL PARK: Cikaniki-Citalahab

Abstract: The Cikaniki resort is one of the most accessible research stations located in the Gunung Halimun Salak National Park (GHSNP). It is in adjacent with Citalahab village. The Research Center for Biology, Indonesian Institute of Sciences and other institutions have conducted intensive research on the fauna diversity of GHSNP from this station. Here we formulate a checklist on fauna diversity surrounding the Cikaniki Research Station and Citalahab, GHNSP from various sources, i.e. field work, museum collections (Museum Zoologicum Bogoriense), scientific publications, and technical report. The study was conducted from October 2019 until October 2020. The latest field work was conducted from 8-10 October 2019 under the framework of the Jungle Survival and Biological Collection Management 2019 program. In total, 821 fauna species were recorded in Cikaniki-Citalahab areas which comprises of 48 species of Mollusca, five species of Malacostraca, 523 species of Insects, 22 species of Actinopterygii, 63 species of Amphibia and Reptiles, 115 species of Aves and 45 species of Mammals. The diversity contributes 62.1% of the total 1,323 known fauna species in GHSNP. Five number of species were assigned as endangered and three species critical endangered by IUCN. In addition, 123 species were endemic to Java and 34 species protected by Regulation of the Ministry of Environment and Forestry Republic of Indonesia Number P.106/MENLHK/SETJEN/KUM.1/12/2018. The areas of Cikaniki and Citalahab are rich in biodiversity. Although both areas are in close intact with human activity, research and ecotourism, the need of continuously spreading awareness and enforce species and area conservation is inevitable.