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J. Fahimee,N. Nursyazwani,K. Fairuz,J. Rosliza,M.R. Mispan,A.B. Idris 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.1
A study to determine the variation of ovipositioning behavior of stingless bees, Heterotrigona itama (Cockerell,1918) was conducted on three colonies on June 2015. A digital single-lens reflex (DSLR) camera with a macrolens attached was used to record every movement of H. itama in its colonies for 20 min hour between 0800 h and2000 h for seven days and seven month. The daily egg laying rate and time for laying eggs in colony-B andcolony-C were significantly (P ˂ 0.05) higher than the colony-A. However, time to close the brood was notsignificantly different among colonies. The fastest egg oviposition time was 4 s by the colony-B and the slowestwas 6 s by the colony-A. In addition there are no significant trends on brood produced per day, laying time ofeggs, and the closing time of the brood after the oviposition process from June to December 2016. This result isuseful for understanding the behavior of egg laying process by the queen bees and necessary to deal withproblems of management and reproduction in the near future.
Idris, A.B.,Hanidah, J.,Gonzaga, A.D.,Azura, A.Nur Korean Society of Applied Entomology 2003 Journal of Asia-Pacific Entomology Vol.6 No.1
The diversity, abundance, species composition and similarity of genus Xanthopimpla (Ichneumonidae: Pimplinae) in three logged and fragmented forests of the Langat Basin in Selangor, Malaysia were studied. A total of 46 Xanthopimpla individuals comprising of 22 species were recorded. Of the 22 species recorded, eight species (X. clava, X. minutaminuta, X. quatei, X. pluerostica, X. flaviceps, X. minuta lita, X. nigritarsis nigritarsis and X. tricapus sp1) were newly recorded for Peninsular Malaysia. The HSKLU (1107 ha) had 15 species representing 68.1% of the total species collected while HSUKM(105 ha) and HSKLS (7198 ha) had 9 (40.9%) and 7 (31.8%) species respectively, The number of Xanthopimpla species individuals was relatively higher in the forests (HSKLU) logged at 5 years ago than in the forests (HSKLS) logged at 26 years ago. The mean number of Xanthopimpla individuals collected was significantly different among forests, suggesting that the age and size of regeneration forests did correspond to the number of insects collected. The diversity of Xanthopimpla species was significantly different among forests; diversity was higher in the recently logged forests than in the older logged forests. Percent species similarity(Jaccard's Coefficient Index) was 43.8%, 40% and 14.3% between HSUKM and HSKLU, HSKLU and HSKLS, and HSUKLf and HSKLS respectively Bigger size forests and close distance forests do not necessarily have higher species diversity and similarity than the smaller forests. Higher percent species similarity was observed 'between 250 and 500 m distances from the edge of HSKLS and HSUKM' and 'between 5 and 250 m from the edge of HSKLU', indicating that the importance of forest edge effect on species diversity, abundance or similarity. The potential of Xanthopimpla to be used as a biological indicator of habitat (forest) disturbance is discussed.
A. D. onzaga,A. B. Idris 한국응용곤충학회 2005 Journal of Asia-Pacific Entomology Vol.8 No.4
Fourteen Xanthopimpla species, one species with 3 subspecies, were new records from Peninsular Malaysia. Re-examination of specimens collections from Centre for Insect Systematics, Universiti Kebangsaan Malaysia and from Department of Agriculture, Malaysia revealed that the previously reported new records were misidentified specimens. Details on the examined specimens, photographs, corrections and remarks were presented.
A. B. Idris,A. K. Husaan,M. T. Siti Hajar 한국응용곤충학회 2004 Journal of Asia-Pacific Entomology Vol.7 No.1
Responses of three different strains (resistance, susceptible and cross strains) of diamondback moth (DBM), Plutella xylostella L. on Bacillus thuringiensis var. aizawai (Bta) and fipronil were studied. Results showed that mortality of DBM larvae of all strains generally decrease with concentrations of the insecticides solutions. However, larval mortality seemed to be higher when treated with fipronil than with Bta. The LC50 value for the susceptible strain treated with Bta (0.00083 ppm) was significantly lower than that of fipronil (0.00124 ppm). In contrast, the LC50 for resistance strain treated with Bta (0.03702 ppm) was significantly higher than with fipronil (0.00112 ppm), indicating that DBM populations of Karak farm have been exposed to Bta longer than to fipronil. Similarly, the cross strain treated with Bta had a significantly higher LC50 value (0.00174 ppm) than that of fipronil (0.00078 ppm). This suggests that the mechanism of resistance of DBM larvae to Bta and fipronil is different and that it could be controlled by different set of gene loci. The use of Bta alternated with fipronil in the field with minimal cross-resistance development among DBM population is discussed.Key words Bacillus thuringiensis, diamondback moth, fipronil, insecticides, resistance
A. D. Gonzaga,A. B. Idris 한국응용곤충학회 2004 Journal of Asia-Pacific Entomology Vol.7 No.2
The distribution of Genus Xanthopimpla in an ecological plot in Pasoh Forest Reserve was studied to assess the within-a-habitat diversity of this species. To investigate the horizontal diversity, malaise traps were placed from the edge to the opposite boundary of the ecological plot. For vertical diversity study, framed malaise traps were hanged on tree branches. For horizontal distribution, results showed that Xanthopimpla favors the edge compared to mid or core area, while for vertical distribution, Xanthopimpla species were found only in the ground level. Reasons for low diversity and abundance of Xanthopimpla towards the core area and towards the upper stratum were discussed.
Idris, A.B.,Kee, S.S. Korean Society of Applied Entomology 2002 Journal of Asia-Pacific Entomology Vol.5 No.1
A study on diversity of ichneumonid wasps in the Sungkai Forest Reserve was studied from June to September in 2000. To investigate the horizontal diversity, samplings were taken using Malaise traps placed along three transect .lines started from forest edge to 600 m into the forest interior. For the vertical diversity study, traps were installed at the base and top portion of the 12 m towers. In the horizontal diversity study, diversity of ichneumonid species (H') increased toward the interior forest but the diversity was not significantly different between 400 m and 600 m treatments. In the vertical diversity study, species diversity decreased as we go upward direction. The species similarity index (Jaccard's coefficient index) indicated that the number of ichneumonid species was significantly different among treatments. The reasons for low ichneumonid diversity at 12 m above ground and no change in diversity as we go deeper in to the forest are discussed.
Gonzaga, A.D.,Idris, A.B. Korean Society of Applied Entomology 2004 Journal of Asia-Pacific Entomology Vol.7 No.2
The distribution of Genus Xanthopimpla in an ecological plot in Pasoh Forest Reserve was studied to assess the within-a-habitat diversity of this species. To investigate the horizontal diversity, malaise traps were placed from the edge to the opposite boundary of the ecological plot. For vertical diversity study, framed malaise traps were hanged on tree branches. For horizontal distribution, results showed that Xanthopimpla favors the edge compared to mid or core area, while for vertical distribution, Xanthopimpla species were found only in the ground level. Reasons for low diversity and abundance of Xanthopimpla towards the core area and towards the upper stratum were discussed.