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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Diversity of Stingless Bees (Apidae: Meliponini) in Thong Pha Phum District, Kanchanaburi Province, Thailand) ผู้เขียน: ยุวรินทร์ บุญทบ,  ดร.สาวิตรี มาไลยพันธุ์, รองศาสตราจารย์ , Kosol Chareansom, ดร.เดชา วิวัฒน์วิทยา, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractStingless bees were observed in four types of undisturbed forest: dry dipterocarp forest (DDF), upper mixed deciduous forest (UMDF), lower mixed deciduous forest (LMDF) and dry evergreen forest (DEF) during April 2004 to March 2005 to determine the diversity and abundance of stingless bees. Monthly sampling was performed using honey-bait traps. Diversity was analysed using the Shannon- Weiner diversity index. Species abundance was computed for each forest type. Three genera and eleven species (Trigona ventralis, T. collina, T. sirindhornae, T. terminata, T. apicalis, T. thoracica, T. canifrons, T. fuscobalteata, T. melina, Pariotrigona pendleburyi and Lisotrigona cacciae) were recorded; Trigona ventralis, T. sirindhornae, T. collina and T. terminata were the most abundant. Species diversity indices ranged from 0.63 (DDF) to 0.86 (LMDF). Species richness and abundance data indicated the following clustering of forest types based on the stingless bee fauna: (((LMDF+UMDF) + DDF) + DEF). Stingless bees were most abundant during cooler, drier months and in seasons and forest types where the percentage of light transmittance was the greatest. |
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ที่มา:Agricultural Science Journal (วารสารวิทยาศาสตร์เกษตร)หัวเรื่อง:ลักษณะโครงสร้างรังของชันโรง(Apidae:Trigona spp. และ Lisotrigona caccaie Nurse)ในโครงการทองผาภูมิ 72 พรรษามหาราช อำเภอทองผาภูมิ จังหวัดกาญจนบุรี |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Discrimination of Two Tetragonula (Apidae: Meliponini) Species in Thailand using Geometric Morphometric Analysis of Wing Venation) ผู้เขียน:Atsalek Rattanawannee, Orawan Duangpakdee, Preecha Rod-im, Randall Hepburn สื่อสิ่งพิมพ์:pdf AbstractGeometric morphometrics is a novel powerful tool for the identification of bee species and subspecies. An application of this method is presented to discriminate two stingless bee species, Tetragonula pagdeni Schwarz, 1939 and Tetragonula fuscobalteata Cameron, 1908, in Thailand based on forewing venation. Nine landmarks were measured from the digitized right forewing of 200 workers (10 bees per colony). Eleven colonies of T. pagdeni and nine colonies of T. fuscobalteata collected from several locations in Thailand were determined. The positions of the groups in the principal component analysis plots revealed that the species are clearly distinct. Multivariate analysis of variance (? = 0.01) showed a significant difference between the bees of the sibling species, producing a high degree of accuracy (96.50%) in the identification of any individual bee of either species. Therefore, it is proposed that geometric morphometric analysis of single wings might be an appropriate first step in the analysis and identification of stingless bees and other insects. |
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