Aditama, RudiCandra (2013) Struktur Komunitas Serangga Nokturnal pada Areal Pertanian Padi Organik di Musim Penghujan Kecamatan Lawang Kabupaten Malang. Sarjana thesis, Universitas Brawijaya.
Abstract
Pertanian organik merupakan sistem pertanian berkelanjutan dengan menekankan pada kestabilan lingkungan. Indikator kestabilan pertanian organik tersebut dapat diketahui dari keragaman dan kelimpahan serangga salah satunya serangga nokturnal. Penelitian ini bertujuan untuk mengetahui diversitas dan struktur komunitas serangga nokturnal pada areal pertanian padi organik di musim penghujan. Penelitian ini bersifat deskriptif eksploratif dengan pengambilan sampel sebanyak enam kali dengan mengunakan metode Light Trap (LT) pada enam titik serta dilakukan pengukuran faktor abiotik meliputi suhu, intensitas cahaya, kelembaban udara dan curah hujan. Data ditabulasi dalam Microsoft Excel. Struktur komunitas didapatkan dari indeks nilai penting (INP) dan indeks diversitas Shannon-Wienner. Serangga nokturnal di areal pertanian organik terdiri dari 10 ordo yang terbagi atas 42 famili dengan lima famili tertinggi berdasarkan indeks nilai penting (INP) yaitu Culicidae (23 %), Delphacidae (19 %), Pyralidae (13 %), Chrysomelidae (12 %), dan Formicidae (12 %). Diversitas serangga nokturnal yang diperoleh berdasarkan indeks Shannon-Wiener menunjukkan nilai (H=4,146). Komposisi peran ekologis serangga nokturnal yang ditemukan terdiri dari herbivora (122 %), predator (33 %), scavanger (23 %), dan parasitoid (22 %). Faktor abiotik memiliki nilai yang tidak berbeda jauh pada setiap lokasi pengambilan sampel dengan rata-rata suhu 22-24o C, intensitas cahaya 40 lux, kelembaban udara 88 %, dan curah hujan kumulatif 2663 mm/tahun.
English Abstract
Organic farming was a system of sustainable agriculture with emphasis on the stability of the environment. Stability indicator of organic farming could be known from the diversity and abundance of insects especially the nocturnal insects. The research aims were to know the diversity and community structure of nocturnal insect on agricultural area of organic rice in the rainy season. This research was an explorative descriptive research and samplings were conducted as much as six times by using Light Trap (LT) method on six points as well as performed measurement of abiotic factors include temperature, light intensity, humidity and rainfall. Data were tabulated in Microsoft Excel. Community structure derived from the important value index (INP) and Shannon-Wienner diversity index. Nocturnal insects in organic agricultural area consists of 10 order which is divided into 42 families with the five highest Family taxa on important value index (INP) namely Culicidae (23 %), Delphacidae (19 %), Pyralidae (13 %), Chrysomelidae (12 %), and Formicidae (12 %). Diversity of nocturnal insects was obtained based on Shannon-Wiener index demonstrates the value (H=4,146). The composition of the ecological role of nocturnal insects were found composed by herbivores (122 %), predators (33 %), scavangers (23 %), and parasitoid (22 %). Abiotic factors were not significant different on each sampling location, with an average temperature of 22-24° C, the light intensity is 40 lux, humidity 88 %, and the cumulative rainfall 2663 mm/year.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/MIPA/2013/333/051308384 |
| Subjects: | 500 Natural sciences and mathematics > 570 Biology |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam > Biologi |
| Depositing User: | Hasbi |
| Date Deposited: | 30 Sep 2013 14:57 |
| Last Modified: | 25 Oct 2021 03:03 |
| URI: | http://repository.ub.ac.id/id/eprint/153594 |
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