scholarly journals Keanekaragaman Hymenoptera pada Kebun Kakao di Lembah Napu, Sulawesi Tengah, Indonesia

Author(s):  
Fahri Fahri ◽  
Jamaluddin Jamaluddin ◽  
Fitrallisan Fitrallisan ◽  
Mihwan Sataral

Salah satu daerah di Indonesia yang menjadi sentra produksi kakao nasional adalah Sulawesi. Peningkatan produktivitas kakao berfokus pada pengendalian hama dan penyakit, optimalisasi penerapan teknologi budidaya, penggunaan jenis tanaman tertentu atau peremajaan tanaman yang telah tua, namun belum mempertimbangkan agen yang membantu dalam proses penyerbukan. Penelitian ini bertujuan untuk mengetahui jenis-jenis lebah pada kebun kakao di Lembah Napu, Sulawesi Tengah. Koleksi Hymenoptera dilakukan pada siang dan malam hari menggunakan sweep net dan light trap. Ditemukan sebanyak 4 spesies Hymenoptera yang termasuk dalam 2 famili yaitu Apis cerana., Apis dorsata, Ceratina sp., Champsomeris sp. Kelimpahan individu tertinggi di plot 2 yaitu 53 individu (49.07%), diikuti plot 1 yaitu 37 individu (34.26%) dan plot 3 dengan kelimpahan terendah yaitu 18 individu (16.67%). Keanekaragaman serangga tertinggi di Plot 2 yaitu H'=1.19, diikuti plot 1 yaitu H'=1.12 dan plot 3 dengan nilai terendah H'=0.98. Kemerataan serangga tertinggi di plot 3 dengan nilai E=0.34, diikuti plot 1 dengan nilai E=0.31, dan plot 2 dengan nilai terendah E=0,30. Lebah yang memiliki ukuran tubuh kecil yaitu Ceratina sp. dengan ukuran 8-10 mm. Namun dari segi perilaku kunjungan, Ceratina sp. tidak mengunjungi bunga kakao, sehingga lebah tersebut belum dapat disimpulkan sebagai lebah penyerbuk kakao yang potensial, meskipun memiliki ukuran yang kecil.

2016 ◽  
Vol 4 (3) ◽  
pp. 380-385
Author(s):  
L.N. Aryal ◽  
R.B. Thapa ◽  
S. Tiwari ◽  
N.K. Chaudhary

This paper presents the finding of the field experiment conducted on monitoring of flower visiting insects on buckwheat (Fagopyrum esculentum Moench.) at farmers’ field during winter, 2012/13 at Meghauli, Chitwan, Nepal. The abundance and distribution of flower visiting insects were studied by monitoring with insect net and pan traps at 500 m, 1500 m and 2800 m from the natural habitat (forest). The wild insects (wasps and Apis dorsata F.) were found higher near to natural habitat and domesticated insects (Apis mellifera L. and Apis cerana F.) found more away from the natural habitat or close to housing and apiaries. Besides, Apis florea F., Andrena sp., Synoeca sp., Chalcid sp., Formica sp., Syrphus sp. and various Dipteran, Coleopteran, and Lepidopteran were also the flower visitors of buckwheat close to natural habitat. So, the diversity index varied with distance from the natural habitat, i.e. increase on proximity to natural habitat, i.e. 1.11, 1.25 and 1.62 at 2800 m, 1500 m and 500 m, respectively on sweeping with insect net and 0.65, 1.04 and 1.30 at 2800 m, 1500 m and 500 m, respectively on setting pan traps. Thus, the number and diversity of flower visiting insects get increased on proximity to natural habitat suggesting either conservation of natural habitat (forest) near farming communities or shifting of buckwheat cultivation near to natural habitat for adequate pollination and production.Int J Appl Sci Biotechnol, Vol 4(3): 380-385


2009 ◽  
Vol 25 (5) ◽  
pp. 559-562 ◽  
Author(s):  
Sumin George Thomas ◽  
Anita Varghese ◽  
Pratim Roy ◽  
Nicola Bradbear ◽  
Simon G. Potts ◽  
...  

Nest site selection is critical for social insects since poor choices can heighten predation risks and result in reproductive failure (Frankset al. 2002). Social bees vary in their nest site requirements and among theApisbees in South Asia,Apis dorsataandA. floreanest in open combs, whereasApis cerananests in cavities (Crane 1999).Apis dorsataoften nests in aggregations, and the large open nests can be about 1.5 m wide and are located in sites such as cliff faces or on the underside of branches of tall trees that are inaccessible to most predators except skilled fliers and climbers (Crane 1999, Seeleyet al. 1982).Apis dorsata, which is widely distributed in tropical and subtropical Asia, is an important source of honey and wax for local communities, and understanding its nesting biology would help in the management and conservation of this economically important species.


Zootaxa ◽  
2017 ◽  
Vol 4227 (1) ◽  
pp. 49
Author(s):  
JIA-HUI LI ◽  
DAVID GOPURENKO ◽  
DU-CHENG CAI ◽  
YE-MENG YANG ◽  
RONG HU ◽  
...  

The biting midge fauna of Dongzhaigang Mangrove Forest, Hainan Province, China was sampled on 14 October 2015 using three methods: a pan light trap operated from dusk until dawn the following morning and sweep net and human landing collections performed between 16:15–17:15 hr. Eight species, including two new records for China, Culicoides palawanensis and C. niphanae, and one new record for Hainan, C. circumbasalis, were collected. A key to assist with identification of specimens of these species is provided. DNA barcodes supported the morphological identification of some of these species and identified the potential presence of cryptic species and/or deep population structure in others. The newly recorded species were morphologically similar to species previously reported from Hainan, highlighting the need for further investigation into the taxonomy of biting midges in this region. Species composition and abundance varied considerably between the three collection techniques suggesting that multiple techniques likely provide a more comprehensive sample of biting midge fauna. 


Wanaraksa ◽  
2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Faizal Muhamad Fasa ◽  
Ilham Adhya ◽  
Nurdin Nurdin
Keyword(s):  

Serangga atau insekta merupakan kelompok dari hewan beruas arthopoda yang berkaki enam. Sehingga ditemukan hampir disemua ekosistem, semakin banyak tempat dengan berbagai penggolongan jenis serangga berdasarkan aktivitasnya dikenal serangga yang aktif di siang hari dan serangga yang aktif di malam hari. Keberadaan jenis serangga di hutan bungkirit sangat penting karena hutan kota bungkirit memiliki fungsi sebagai area lingkungan yang menjaga ekosistem dan keanekaragaman hayati di Kota Kuningan serta memiliki fungsi sebagai sumber daya alam yang sangat tinggi berupa Flora Dan Fauna. Tujuan dari penelitian ini untuk mengidentifikasi jenis serangga di areal hutan kota bungkirit Kabupaten Kuningan dan untuk mengetahui tingkat keanekaragaman jenis serangga yang terdapat di areal Hutan Kota Bungkirit Kabupaten Kuningan. Penetian ini dilakukan dengan menggunakan metode Sweep Net dan Light Trap. Hasil penelitian menunjukkan terdapat 14 jenis serangga, nilai indeks keanekaragamannya (H’) adalah 2,31, indeks kemerataan pada lokasi sawah 0,90 mendapat nilai tertinggi sedangkan pada lokasi hutan campuran terdapat 0,88. Hasil perhitungan indeks sorenson mengetahui kesamaan jenis serangga pada lokasi penelitian sawah dan hutan campuran ditunjukkan dengan adanya kesamaan setiap lokasi penelitian sebesar 31% (sedang). Kata Kunci: Serangga, Hutan Kota, Sweep Net, Light Trap


2020 ◽  
Vol 3 (2) ◽  
pp. 89-104
Author(s):  
Parlindungan Tarihoran ◽  
Ameilia Zuliyanti Siregar ◽  
Marheni

This research aimed to know the diversity of insects of sorghum plantations and the status of insect functions in sorghum plants. The purposive sampling method were done, which used 4 traps, consist of yellow sticky trap, sweep net, pitfall trap and light trap for 8 observations research were done from May to September 2019 at Kolam Village, Percut Sei Tuan District of Deli Serdang Regency, then continue to identified in Pest Laboratory Faculty of Agriculture University of Sumatera Utara, Medan. The results showed that there were 117 individuals insects which consist of 10 orders and 33 families. The highest relative density was 14.74% and the lowest was 0.42% sere recorded, while the highest relative frequency was 4.08% and the lowest was 1.53%. The value of insect diversity index was 3.115 (High), it is mean the diversities of insects varied and the habitat was good for growth of insects. The value of evenness index was 0.891 (high) and richness index was 4.15 (high). The dominant insects recorded from Order of Hymenoptera (Family of Formicidae), continued to Coleoptera (Family of Scarabaeidae; Coccinellidae) are quite diverse in the sorghum plantations. The function status of insects was recorded as herbivores, parasitoids, predators, pollinators and decomposer were determined.


2019 ◽  
Vol 2 (1) ◽  
pp. 238-243
Author(s):  
Anjali Gyawali ◽  
Bandana Regmi ◽  
Rameshwor Pudasaini ◽  
Namuna Acharya

A study on diversity and abundance of insects in rice field was conducted at farmer field of Lamahi, Dang during July to October in 2019. Insects were collected using sweep net and light trap. Overall, 414 insect specimen representing 11 families and 8 orders were collected during the period. Grasshopper (23.98%) with including all species was the most abundance insect found in rice field as it followed by brown plant hopper (16.62%). Among the eight insect orders captured Orthoptera (29.16%) was the most abundance insect order followed by Homoptera (16.62%). As the diversity of insect pest in this area may responsible economic losses was found which will be useful to adapt appropriate management practices to keep them at normal area. The presence of natural enemies should conserve to enhance the natural biological control of insect pests.


Author(s):  
R. Pudasaini ◽  
R. B. Thapa ◽  
N. K. Chaudhary ◽  
S. Tiwari

The abundance and diversity of rapeseed insect flower visitors were assessed by using insect pan traps, sweep net and visual observations at different blooming stage of rapeseed at Jutpani VDC, Chitwan district, Nepal during 2012-013. The pollinator fauna of rapeseed included twenty one species from six different insect orders. Hymenopteran (77.95%) species were the most abundant insects visiting rapeseed followed by Diptera (12.23%) and Lepidoptera (3.49%). Honeybees were the dominant group of pollinators and among honeybees, Apis mellifera L. was the most dominant one (36.34%) followed by Apis florea F. (12.45%), Apis cerana F. (11.14%) and Apis dorsata F. (5.68%). The higher abundance and diversity of pollinators were observed at 12:00 to 1:00 pm and the diversity was related to the crop blooming stage. Therefore, pollinator's friendly cultivation practices should be followed for conservation and management of insect pollinators for higher production and productivity of rapeseed crop under Chitwan condition. Journal of the Institute of Agriculture and Animal Science. Vol. 33-34, 2015, 73-78


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