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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology BIODIVERS - BIOTROP Scientific Magazine
SRI WIDAYANTI
SEAMEO BIOTROP
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy Environmental Science Immunology & microbiology Veterinary

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ESTABLISHMENT OF NEOCHETINA SPP.: THEIR PATTERN OF LOCAL DISPERSAL AND AGE STRUCTURE AT THE RELEASE SITE SRI WIDAYANTI; KASNO KASNO; ASMARINA S.R.; SUNJAYA SUNJAYA
BIOTROPIA - The Southeast Asian Journal of Tropical Biology No. 17 (2001)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (123.872 KB) | DOI: 10.11598/btb.2001.0.17.168

Abstract

Study on the distribution pattern and age structure ofNeochetina spp. (Coleoptera: Curculionidae) at the release site was conducted to know a) the distribution pattern of the weevil, b) its establishment status, c) its survival rate in the field, and d) relationship between the attack of the weevil and the fungus, Altemaria eichhorniae Nag Rag & Ponappa (Hyphomycetes), in causing damage to water hyacinth. This study was conducted at Situ Bagendit lake, Garut, West Java. A release and recapture method was employed to study the mode and rate of dispersal of the weevils under field conditions. Regular sample collection at two-month interval was done to evaluate the pattern of distribution and to assess the age structure under field condition. Another two months regular observation was done to assess damage severity due to adult weevils and the fungus, A. eichhorniae, on water hyacinth. Results showed, that the weevils seem to disperse actively to all directions following the presence of water hyacinth. The data also showed that the dispersal rate of the weevils was about a few meters a week. Under field conditions at Situ Bagendit lake, the weevils were about evenly distributed throughout water hyacinth mass. The density of the weevils fluctuated from time to time, but the trend slightly increased. The survival rate of the weevils at Situ Bagendit lake was estimated not more than 5%. It was suspected that various limiting factors such as various predators have caused the low population increase under field conditions. The population increase through time confirmed that the weevils have established at Situ Bagendit lake. Field data showed that there were no interaction between the damage severity of the weed caused by both weevils and the fungus.
Manifestation of the Ecosystem Learning Model for Biodiversity to Improve Competency-Based Environmental Education Slamet Widodo Sugiarto; Zulhamsyah Imran; Perdinan; Sri Widayanti; Trijanti A. Widinni A; Herni Widiastuti; Dewi Rahmawati
BIODIVERS - BIOTROP Science Magazine Vol. 2 No. 1 (2023): BIODIVERS (BIOTROP Science Magazine) : Agro-Eco-Edu-Tourism in Managing Tropica
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56060/bdv.2023.2.1.1997

Abstract

Integrating environmental education and increasing competency through the development program of educational ecosystem models and biodiversity education and learning ecosystems can effectively enrich materials and practices to increase students' knowledge, understanding, and skills. The embodiment of the Sensory Garden and Therapeutic Garden prototypes as natural laboratories and libraries will be an effective and adaptive way of developing competency[1]based education and learning models as well as the interests and talents of students.
What a Rich BIOTROP: Development Database Framework of Biodiversity Heritage Collections Harry Imantho; Saeful Bachri; Ina Retnowati; Sri Sudarmiyati Tjitrosoedirdjo; Soekisman Tjitrosemito; Sri Widayanti; Risa Rosita; Irawan Irawan; Supriyanto Supriyanto; Iman Hidayat
BIODIVERS - BIOTROP Science Magazine Vol. 2 No. 2 (2023): BIODIVERS (BIOTROP Science Magazine) - Biodiversity for All
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56060/bdv.2023.2.2.2096

Abstract

The need for biodiversity science with the availability and interoperability of data on the internet reinforces each other. This is driven by the increasing literacy of the world community regarding the impact of loss of biodiversity on the sustainability of human life. High-quality biodiversity data is needed to demonstrate that spatio-temporal loss of biodiversity has led to a reduction in quality of life. This facts have underpinned SEAMEO BIOTROP to increase the visibility of managed biodiversity collection data. SEAMEO BIOTROP maintains thousands of valuable herbarium collections of weeds, trees and invasive plants; fungi, insects and pests for research and testing purposes. These historic and valuable collections of biodiversity need to be preserved and better managed in digital format so that the information is available to botanists and the general public around the world. A study regarding the development of an integrated biodiversity collection database framework has been carried out by SEAMEO BIOTROP. This study aims to formulate and develop an initial framework for the BIOTROP biodiversity database that is relevant to national, regional and global needs. This study succeeded in developing an integrated database framework that brings together all digital data from the SEAMEO BIOTROP biodiversity collection into a database management system. This database management system also adopts Darwin Core metadata to ensure easy exchange and sharing of data with existing biodiversity data management systems in the world.
Co-Authors ASMARINA S.R. Dewi Rahmawati Harry Imantho Herni Widiastuti Iman Hidayat Ina Retnowati Irawan Irawan KASNO KASNO Perdinan Risa Rosita Saeful Bachri Slamet Widodo Sugiarto SOEKISMAN TJITROSEMITO Sri Sudarmiyati Tjitrosoedirdjo SUNJAYA SUNJAYA Supriyanto Supriyanto Trijanti A. Widinni A Zulhamsyah Imran