Insects play a crucial role in agricultural ecosystems with several functional groups. Objective of this research is to determine the directional movement of insect community across oil palm ecosystem at boundaries of different land use. The research was conducted in Ladang Endau-Rompin (LER), Pahang. Six sampling stations were set up in the plantation. Sampling was conducted using impact trap. A total of 4,217 individuals from nine orders and 81 families were collected. The insect orders consist of Hymenoptera, Coleoptera, Hempitera, Diptera, Orthoptera, Dermaptera, Lepidoptera and Siphonaptera. The most abundance families were Sciaridae (585 individuals; 13.87%), Dolichopodidae (517 individuals; 12.26%) and Nitidulidae (382 individuals; 9.06%). This is followed by Formicidae (346 individuals; 8.20%) and Curculionidae (273 individuals; 6.47%). The percentage of individuals for other insect families was less than 5%. Shannon’s Diversity Index of insect families for station J42TB was the highest (H’= 3.011) whereas the lowest was for station J20TB (H’= 2.028). There was a significant difference (t=-25.47, p <0.05) in the diversity of insect between the sampling stations.The edge effect of attraction can be clearly seen in the LER. Dendogram from two-way clustering analysis shows that the insect community can be divided in two groups which came from different directions north, south, east and west. Chi-squared test proved that the insect community that came from every direction (north, south, east, west) was significantly different (χ2= 370.259, p < 0.05). © 2020, Universiti Kebangsaan Malaysia Press. All rights reserved.

Studies of soil communities are few and not widely covered at area of monoculture plantation while the community contributed significantly to the stability of an ecosystem. The purpose othe study was to determine the composition of macroarthropod associated with decaying oipalm biomass at three different types of soil and cluster them in feeding guild. This study used line transect method with five sampling units at each types of soil in the palm oil ecosystem oEndau Rompin, Pahang consist of clay, shallow peat and deep peat. The total number osampling units are 15 units (quadrats) and the sampling was conducted three times. A total o942 individuals from 14 orders and 38 families of macroarthropod were successfully sampled at Endau Rompin. This study obtained four classes of arthropod which are ArachnidsHexapods, Malacostraca and also Myriapods. Number of individuals of arthropods for each soil types were recorded which is from Clay soil (432 individuals; 12 orders; 30 families)shallow peat soil (386 individuals; 14 orders; 30 families) and deep peat soil registered (133 individuals; 9 orders; 18 families). Significant difference (?2 = 312.285, dk = 74, p <0.05between the types of soil and family of macroarthropods were identified. The two-way clusteanalysis identified 11 groups of communities of soil macroartropods based on their feeding guild. Omnivorous group (69%) were the highest group followed by predators (17.3%)scavengers (13.4%) and lastly phytophagous (0.3%). This study had able to identify communities of macroarthropod associated with decaying oil palm biomass at three differentypes of soil and cluster them to feeding guilds. This studies also managed to determine thaabundance of soil communities were based on the plant grid position along the plantation field. � 2018, Universiti Kebangsaan Malaysia Press. All rights reserved.