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All Journal JURNAL BIOLOGI INDONESIA 3BIO: Journal of Biological Science, Technology and Management
Devi N. Choesin
Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Immunology & microbiology Neuroscience

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Relationship Different Riparian Vegetation Cover with Stream Conditions in Cikapinis Stream, West Jawa Kemalasari, Della; Choesin, Devi N.
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (85.691 KB) | DOI: 10.14203/jbi.v7i2.3084

Abstract

Hubungan antra Perbedaan Tutupan Vegetasi Riparian pada Kondisi Air mengalir di kawasan Cikapinis, Jawa Barat. Vegetasi memiliki peran sangat penting di kawasan perairan yang mengalir; banyak hubungan antara tutupan vegetasi dengan aliran air dan struktur makroinvertebrata yang menghuninya. Oleh sebab itu penelitian dirancang di kawasan aliranCikapinis Jawa barat dengan mengambil contoh stasion penelitian yang terbagi menjadi tiga lokasi yaitu di hulu, tengah dan hilir. Kawasan tengah merupakan kawasan yang terbuka karena kebakaran 8 bulan sebelum penelitian. Kawasan hulu merupakan kawasan dengan kondisi banyak tertutup oleh tumbuhan perdu yang agak berbeda dengan kondisi kawasan hilir dan diikuti dengan kawasan tengah. Di kawasan tebangan, kandungan kimia air yaitu nitrat dan orthophosphat meningkat dan diikuti penurunan indeks diversitas makroinvertebrata, rendahnya kelimpahan teristimewa terjadi pada alga larva Petrophila sp. Analisis Komponen (PCA) yangdigunakan pada penelitian ini mengindikasikan adanya pengaruh antara vegetasi riparian dan kondisi fisik kimia air. Keeratan hubungan terlihat antara rendahnya tutupan vegetasi, tingginya suhu udara, intensitas sinar, kondisi tanah, nitrat, dan orthophosphat.Kata kunci: Vegetasi riparian, Aliran air, Kondisis fisik kimia, Makroinvertebrata, logging.
RELATIONSHIP DIFFERENT RIPARIAN VEGETATION COVER WITH STREAM CONDITIONS IN CIKAPINIS STREAM, WEST JAWA Kemalasari, Della; Choesin, Devi N.
JURNAL BIOLOGI INDONESIA Vol 7, No 2 (2011): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v7i2.3084

Abstract

Hubungan antra Perbedaan Tutupan Vegetasi Riparian pada Kondisi Air mengalir di kawasan Cikapinis, Jawa Barat. Vegetasi memiliki peran sangat penting di kawasan perairan yang mengalir; banyak hubungan antara tutupan vegetasi dengan aliran air dan struktur makroinvertebrata yang menghuninya. Oleh sebab itu penelitian dirancang di kawasan aliranCikapinis Jawa barat dengan mengambil contoh stasion penelitian yang terbagi menjadi tiga lokasi yaitu di hulu, tengah dan hilir. Kawasan tengah merupakan kawasan yang terbuka karena kebakaran 8 bulan sebelum penelitian. Kawasan hulu merupakan kawasan dengan kondisi banyak tertutup oleh tumbuhan perdu yang agak berbeda dengan kondisi kawasan hilir dan diikuti dengan kawasan tengah. Di kawasan tebangan, kandungan kimia air yaitu nitrat dan orthophosphat meningkat dan diikuti penurunan indeks diversitas makroinvertebrata, rendahnya kelimpahan teristimewa terjadi pada alga larva Petrophila sp. Analisis Komponen (PCA) yangdigunakan pada penelitian ini mengindikasikan adanya pengaruh antara vegetasi riparian dan kondisi fisik kimia air. Keeratan hubungan terlihat antara rendahnya tutupan vegetasi, tingginya suhu udara, intensitas sinar, kondisi tanah, nitrat, dan orthophosphat.Kata kunci: Vegetasi riparian, Aliran air, Kondisis fisik kimia, Makroinvertebrata, logging.
Relationship of Land Cover Heterogeneity and Insecticide Use with Arthropod Community Structure in Rice Agroecosystems Dewina, Restu Utari; Choesin, Devi N.
3BIO: Journal of Biological Science, Technology and Management Vol. 6 No. 1 (2024)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2024.6.1.4

Abstract

Rice agroecosystems generally experience two kinds of environmental stresses, i.e., a decrease in the heterogeneity of land vegetation types due to the development of settlements in the border zone and the excessive use of insecticides. Both of these factors are known to affect the structure of the arthropod community in rice agroecosystems. However, studies related to the effects of these two stresses in shaping the structure of arthropod communities have not been widely carried out, especially during the planting period in the rainy season. This study aims toanalyze the relationship between land cover heterogeneity and insecticide use with the taxonomic and functional diversity of arthropods in thealpha, beta, and gamma dimensions. The study was conducted during the rainy season (October–March) on four rice agroecosystem sites in Bandung, West Java. Data was collected 30 and 50 days after planting (DAP). Arthropod samples were identified, and their taxonomic andfunctional diversity was calculated using the Shannon entropy formula (D). In general, land cover heterogeneity was positively correlated withthe value of arthropod taxonomic and functional diversity, especially in the early vegetative phase of rice plants (30 DAP). In con- trast,insecticides (g/m2) were negatively correlated with the value of arthropod diversity. The composition of arthropod species locally was relativelythe same except in the rice agroecosystem with the lowest land cover heterogeneity and the highest use of insecticides. Additionally, thecoefficient value of the insecticide variable has more influence on the value of arthropod diversity than the variable coefficient of land coverheterogeneity.
Co-Authors Dewina, Restu Utari Kemalasari, Della Kemalasari, Della