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Keanekaragaman dan struktur komunitas semut pada perkebunan lada di Lampung Yudiyanto, Yudiyanto; Qayim, Ibnul; Munif, Abdul; Setiadi, Dede; Rizali, Akhmad
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (489.252 KB) | DOI: 10.5994/jei.11.2.65

Abstract

The occurrence of ants in agricultural habitat is related to the availability of food resources as well as environmental condition for its nesting site. As predator, ants play an important role on controlling pest population in agricultural habitat. The objective of this research was to study the diversity of ants in pepper plantation. The research outcome can be used as basic information for cultivation management of pepper. Ecological observation was conducted in four regencies in Lampung Province with two selected plots on each regency. On each plot, ants were sampled using pitfall traps. In total, 28 ant species were recorded from pepper field in four regencies. Two species i.e. Anoplolepis gracilipes and Solenopsis geminataare well-known as tramp and invasive species. There is significantly different of ant species composition among regencies. The occurrence of ants in pepper plantationis probably affected by habitat condition surrounding pepper plantation and precipitation.
Abiotic Factors Influencing Mantangan (Merremia peltata) Invasion in Bukit Barisan Selatan National Park Master, Jani; Tjitrosoedirdjo, Soekisman; Qayim, Ibnul
BIOTROPIA Vol. 23 No. 1 (2016): BIOTROPIA Vol. 23 No. 1 June 2016
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (311.21 KB) | DOI: 10.11598/btb.2016.23.1.457

Abstract

Some areas in Bukit Barisan Selatan National Park have serious environmental problems related to the invasion of Merremia peltata (Family: Convolvulaceae). This study investigated abiotic factors influencing the invasion. The research compared abiotic conditions in three forest locations with different invasion levels: severe, moderate, and mild. Measured abiotic factors included percentage of tree canopy cover, microclimate variables (temperature and humidity), elevation above sea level, and the physical and chemical properties of the soil surface. In this study, canopy cover was categorized as an abiotic factor because it affects the amount of light reaching the forest floor. A post-hoc Duncan's Multiple Range Test (DMRT) was performed to determine significant differences (p < 0.05) among abiotic variables. Additionally, correlation analysis and multiple linear regression were conducted to evaluate the relationships between abiotic factors and the level of M. peltata invasion. Multiple regression analysis showed that canopy cover significantly (p < 0.05) affected the invasion. Based on the generated model, a 1% increase in canopy cover would decrease the M. peltata invasion by approximately 2.8%. Soil nutrient analysis through multiple linear regression revealed that the C/N ratio, and concentrations of P₂O₅, Ca, Mg, and Na significantly (p < 0.05) influenced invasion level. An increase in C/N ratio and concentrations of P₂O₅ and Ca were correlated with a reduction in invasion, whereas increases in Mg and Na concentrations were associated with higher invasion levels. Overall, the invasion of Merremia peltata in Bukit Barisan Selatan National Park was influenced by an open forest canopy and was associated with high concentrations of Na and Mg in the soil of invaded areas.
Co-Authors , Triadiati Abdul Munif ABDUL MUNIF Abdul Qadir Akhmad Rizali Alfian Helmi Amigunani, Zahra Wajdini Amperanoto, Agus Arief Sabdo Yuwono Aulia Andi Mustika Budi Purwanto Christoph Leuschner D Djokosetianto Dede Setiadi Dede Setiadi Didie Soepandi Didy Sopandie Dodik Ridho Nurrochmat Dwi Utami , Anisa Dwika Bramasta Edi Guhardja Edi Guhardja Edi Guhardja Erizal , Erizal Erizal Erma Prihastanti Ervizal A. M. Zuhud Ervizal AMZU Febrita, Joana Fifi Gus Dwiyanti Firman Ali Rahman Handian Purwawangsa Hery Purnobasuki Hidayat, Febrian R Hudaya, Aang Husin Alatas Ignatius Muhadiono Ilma Rahmawati Inggit Puji Astuti IPB, BPKB ISKANDAR ZULKARNAEN SIREGAR Iwan Hilwan Jamili Jamili Jani Master Jani Master, Jani Khairul Amri Khairunnisa, Zayyaan Nabiila Khoirunisa, Hana Khoirunnisa, Hana Laksono Trisnantoro Lilik B Prasetyo Lilik B. Prasetyo Lilik B. Prasetyo Mangunah Mangunah Meti Ekayani Muhadiono, Ignatius Muhammad Basrowi Nadita Zairina Suchesdian Nina Ratna Djuita Nyoto Santoso Peniwidiyanti Peniwidiyanti Putra, Heriansyah Qadir, Abdul Rai Sita Ramadhani Eka Putra Ramadhanis, Zainab Dwi RC Hidayat Soesilohadi Rifnadhi, Bayu RIKA RAFFIUDIN Rina Mardiana Rukmana, Adi Rustam, Aswar Samin Botanri Sari, Windi Mayang Satyanto Krido Saptomo Sethyo Vieni Sari Simon Sutarno Slamet Arif Susanto Slamet, Alim S Sobri Effendy Soekisman T SOEKISMAN TJITROSEMITO Sudarsono Sulistijorini Sutarno, Simon Sutoyo Sutoyo TATIK CHIKMAWATI Tjitrosoedirdjo, Soekisman Utami, Anisa D Utami, Anisa Dwi Utami, Annisa Dwi Wahdina Winda Utami Putri Winda Utami Putri WINDRA PRIAWANDIPUTRA, WINDRA Y. Purwanto Yohanes Purwanto Yohanes Purwanto Yudiyanto Yudiyanto Yudiyanto Yudiyanto Yusli Wardiatno Zaenal Abidin