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INDONESIA
TREUBIA
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : 00826340     EISSN : 2337876X     DOI : -
Core Subject : Education,
Education
Arjuna Subject : -
Articles 10 Documents
 1 
Search results for , issue "Vol 40 (2013): Vol. 40, December 2013" : 10 Documents clear
EXTENT OF USE OF THE NOVEL FABACEOUS HOST CENTROSEMA MOLLE BY HENOSEPILACHNA VIGINTIOCTOPUNCTATA (COLEOPTERA: COCCINELLIDAE) IN NUSA TENGGARA, INDONESIA Fujiyama, Naoyuki; Ueno, Hideki; Kahono, Sih; Hartini, Sri; Matsubayashi, Kei W.; Kikuta, Shogo; Katakura, Haruo
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2033.478 KB) | DOI: 10.14203/treubia.v40i0.185

Abstract

The herbivorous ladybird beetle Henosepilachna vigintioctopunctata depends primarily on solanaceous plants. The utilisation of a novel fabaceous host, centro (Centrosema molle), by this beetle has been reported from several regions in Southeastern Asia, but details of the distribution and feeding habits of H. vigintioctopunctata populations on centro are largely unknown. Our study aimed to gather basic information on the utilisation of centro by H. vigintioctopunctata in the Nusa Tenggara region of southeastern Indonesia. Field surveys indicated that H. vigintioctopunctata did not yet utilize centro in the wild in this region. However, in feeding-choice experiments in the laboratory, all beetle populations tested from this region had some potential to utilize centro, i.e., showed some feeding acceptance of this plant. Based on these results, we discuss the current status of the Nusa Tenggara H. vigintioctopunctata populations in using centro as a host.
POTENTIAL ABILITY OF THE SOLANUM-FEEDING LADYBIRD BEETLE HENOSEPILACHNA DIFFINIS (COLEOPTERA; COCCINELLIDAE) TO USE THE INTRODUCED FABACEOUS PLANT CENTROSEMA MOLLE Kikuta, Shogo; Fujiyama, Naoyuki; Kahono, Sih; Kobayashi, Norio; Hartini, Sri; Katakura, Haruo
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1783.521 KB) | DOI: 10.14203/treubia.v40i0.187

Abstract

Host specificity has been a major factor in generating the tremendous diversity of phytophagous arthropods. Studies of adaptation to introduced or invasive plant species provide an opportunity to investigate incipient evolutionary changes in host specificity. We investigated the cryptic ability of the Asian tropical herbivorous ladybird beetle Henosepilachna diffinis to feed on the fabaceous weed "centro", Centrosema molle, which was introduced to Southeast Asia about 200 years ago. In laboratory choice tests using this plant and the normal host plant, Solanum torvum, adults preferred S. torvum to centro, but over half the beetles tested ate leaves of both plants. Furthermore, most first-instar larvae accepted centro during a rearing experiment, and a few of them grew to the third-instar stage, though none reached the final (fourth) instar. Henosepilachna diffinis likely acquired this incomplete acceptability of centro without any direct host-grazer interaction with centro, probably before this weed was introduced to Southeast Asia. Our results further suggest that another Henosepilachna species, H. vigintioctopunctata, might similarly have already acquired an incomplete ability to use centro when this beetle encountered it for the first time, and this triggered a subsequent host-range expansion from solanaceous plants to include centro in various parts of Southeast Asia.
MACROCHELID MITES FROM A NEST OF HONEY BEE APIS DORSATA DORSATA AT BOGOR BOTANICAL GARDEN, WEST JAVA, INDONESIA Hartini, Sri; Kahono, Sih; Takaku, Gen
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1877.935 KB) | DOI: 10.14203/treubia.v40i0.188

Abstract

Thirteen species of macrochelid mites belonging to the genera Holostaspella, Macrocheles, Neopodocinum and Glyptholaspis were collected from a nest of honey bee Apis dorsata dorsata at Bogor Botanical Garden, Bogor, West Java, Indonesia. Of these, one species was described as new to science, two species were recorded from Indonesia for the first time, and all species were recorded from nest of Apis dorsata dorsata for the first time. Macrocheles nidus sp. nov. is similar to some species of scutatus subgroup, but it is discernible from the latter by the pilosity of dorsal setae.
REVIEW OF THE MORPHOLOGY OF TRIMERESURUS BROGERSMAI (SERPENTES: CIPERIDAE), A RARE PIVIPER OF SIMEULUE AND THE MENTAWAI ISLANDS, INDONESIA Harvey, Michael B.; Sidik, Irvan
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v40i0.179

Abstract

Trimeresurus brongersmai is a rare pitviper from Simeulue and the Mentawai Islands. We comment on the morphology and examine new specimens from Siberut Island. The four new specimens differ morphologically from the eight specimens known previously. A distinctive banding pattern on the distal tail characterises T. brongersmai and the related species T. puniceus. Juveniles lack the distinctive projecting supraoculars of adult T. brongersmai and these scales apparently develop during ontogeny. We propose the new term “rostronasal” for a large scale positioned between the rostral and nasal on each side of the snout in this species. In addition, we discuss several features of this species that were not mentioned in earlier accounts.
Micro-spatial and seasonal distributions of two sympatric host races of the phytophagous ladybird beetle Henosepilachna diekei (Coleoptera: Coccinellidae) and their host plants in West Java, Indonesia Matsubayashi, Kei W.; Kahono, Sih; Hartini, Sri; Katakura, Haruo
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v40i0.181

Abstract

Divergent adaptation to different host plants may promote reproductive isolation between hostspecific populations in phytophagous insects, since strict preferences for different host plants act as an isolating barrier between populations on the different hosts. Moreover, a high dependence on the host plants may cause additional reproductive barriers, e.g., differences in micro-spatial distribution and phenology between host-specific populations when the host plants differ in these characters. However, few studies have specifically addressed these two types of host-plant-induced isolating barriers. Here we compared the microspatialdistribution and seasonal fluctuation of two host races of the  phytophagous ladybird beetle Henosepilachna diekei (Coleoptera: Coccinellidae: Epilachnine) in Bogor, West Java, one depending onMikania micrantha (Asteraceae) and the other on Leucas lavandulifolia (Lamiaceae). In the field, M. micrantha was far more abundant and common than L. lavandulifolia throughout the year. M. micrantha wasfound in relatively moist habitats with moderate sunlight, while L. lavandulifolia was found in dry, sunny, open habitats. Consequently, the beetles depending on M. micrantha were more common and abundant than those depending on L. lavandulifolia. Although the two host races could encounter one another where the two host plants occurred in close proximity, they infrequently did so because of strict host fidelity coupledwith differences in the abundance and habitat of the two host plants. On the other hand, we detected no evidence of host-related seasonal isolation between the two host races.Key words: host race, host shift, micro-spatial distribution, phenology, seasonal fluctuation
EXTENT OF USE OF THE NOVEL FABACEOUS HOST CENTROSEMA MOLLE BY HENOSEPILACHNA VIGINTIOCTOPUNCTATA (COLEOPTERA: COCCINELLIDAE) IN NUSA TENGGARA, INDONESIA Naoyuki Fujiyama; Hideki Ueno; Sih Kahono; Sri Hartini; Kei W. Matsubayashi; Shogo Kikuta; Haruo Katakura
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v40i0.185

Abstract

The herbivorous ladybird beetle Henosepilachna vigintioctopunctata depends primarily on solanaceous plants. The utilisation of a novel fabaceous host, centro (Centrosema molle), by this beetle has been reported from several regions in Southeastern Asia, but details of the distribution and feeding habits of H. vigintioctopunctata populations on centro are largely unknown. Our study aimed to gather basic information on the utilisation of centro by H. vigintioctopunctata in the Nusa Tenggara region of southeastern Indonesia. Field surveys indicated that H. vigintioctopunctata did not yet utilize centro in the wild in this region. However, in feeding-choice experiments in the laboratory, all beetle populations tested from this region had some potential to utilize centro, i.e., showed some feeding acceptance of this plant. Based on these results, we discuss the current status of the Nusa Tenggara H. vigintioctopunctata populations in using centro as a host.
POTENTIAL ABILITY OF THE SOLANUM-FEEDING LADYBIRD BEETLE HENOSEPILACHNA DIFFINIS (COLEOPTERA; COCCINELLIDAE) TO USE THE INTRODUCED FABACEOUS PLANT CENTROSEMA MOLLE Shogo Kikuta; Naoyuki Fujiyama; Sih Kahono; Norio Kobayashi; Sri Hartini; Haruo Katakura
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v40i0.187

Abstract

Host specificity has been a major factor in generating the tremendous diversity of phytophagous arthropods. Studies of adaptation to introduced or invasive plant species provide an opportunity to investigate incipient evolutionary changes in host specificity. We investigated the cryptic ability of the Asian tropical herbivorous ladybird beetle Henosepilachna diffinis to feed on the fabaceous weed "centro", Centrosema molle, which was introduced to Southeast Asia about 200 years ago. In laboratory choice tests using this plant and the normal host plant, Solanum torvum, adults preferred S. torvum to centro, but over half the beetles tested ate leaves of both plants. Furthermore, most first-instar larvae accepted centro during a rearing experiment, and a few of them grew to the third-instar stage, though none reached the final (fourth) instar. Henosepilachna diffinis likely acquired this incomplete acceptability of centro without any direct host-grazer interaction with centro, probably before this weed was introduced to Southeast Asia. Our results further suggest that another Henosepilachna species, H. vigintioctopunctata, might similarly have already acquired an incomplete ability to use centro when this beetle encountered it for the first time, and this triggered a subsequent host-range expansion from solanaceous plants to include centro in various parts of Southeast Asia.
MACROCHELID MITES FROM A NEST OF HONEY BEE APIS DORSATA DORSATA AT BOGOR BOTANICAL GARDEN, WEST JAVA, INDONESIA Sri Hartini; Sih Kahono; Gen Takaku
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v40i0.188

Abstract

Thirteen species of macrochelid mites belonging to the genera Holostaspella, Macrocheles, Neopodocinum and Glyptholaspis were collected from a nest of honey bee Apis dorsata dorsata at Bogor Botanical Garden, Bogor, West Java, Indonesia. Of these, one species was described as new to science, two species were recorded from Indonesia for the first time, and all species were recorded from nest of Apis dorsata dorsata for the first time. Macrocheles nidus sp. nov. is similar to some species of scutatus subgroup, but it is discernible from the latter by the pilosity of dorsal setae.
REVIEW OF THE MORPHOLOGY OF TRIMERESURUS BROGERSMAI (SERPENTES: CIPERIDAE), A RARE PIVIPER OF SIMEULUE AND THE MENTAWAI ISLANDS, INDONESIA Michael B. Harvey; Irvan Sidik
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v40i0.179

Abstract

Trimeresurus brongersmai is a rare pitviper from Simeulue and the Mentawai Islands. We comment on the morphology and examine new specimens from Siberut Island. The four new specimens differ morphologically from the eight specimens known previously. A distinctive banding pattern on the distal tail characterises T. brongersmai and the related species T. puniceus. Juveniles lack the distinctive projecting supraoculars of adult T. brongersmai and these scales apparently develop during ontogeny. We propose the new term “rostronasal” for a large scale positioned between the rostral and nasal on each side of the snout in this species. In addition, we discuss several features of this species that were not mentioned in earlier accounts.
Micro-spatial and seasonal distributions of two sympatric host races of the phytophagous ladybird beetle Henosepilachna diekei (Coleoptera: Coccinellidae) and their host plants in West Java, Indonesia Kei W. Matsubayashi; Sih Kahono; Sri Hartini; Haruo Katakura
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/treubia.v40i0.181

Abstract

Divergent adaptation to different host plants may promote reproductive isolation between hostspecific populations in phytophagous insects, since strict preferences for different host plants act as an isolating barrier between populations on the different hosts. Moreover, a high dependence on the host plants may cause additional reproductive barriers, e.g., differences in micro-spatial distribution and phenology between host-specific populations when the host plants differ in these characters. However, few studies have specifically addressed these two types of host-plant-induced isolating barriers. Here we compared the microspatialdistribution and seasonal fluctuation of two host races of the  phytophagous ladybird beetle Henosepilachna diekei (Coleoptera: Coccinellidae: Epilachnine) in Bogor, West Java, one depending onMikania micrantha (Asteraceae) and the other on Leucas lavandulifolia (Lamiaceae). In the field, M. micrantha was far more abundant and common than L. lavandulifolia throughout the year. M. micrantha wasfound in relatively moist habitats with moderate sunlight, while L. lavandulifolia was found in dry, sunny, open habitats. Consequently, the beetles depending on M. micrantha were more common and abundant than those depending on L. lavandulifolia. Although the two host races could encounter one another where the two host plants occurred in close proximity, they infrequently did so because of strict host fidelity coupledwith differences in the abundance and habitat of the two host plants. On the other hand, we detected no evidence of host-related seasonal isolation between the two host races.Key words: host race, host shift, micro-spatial distribution, phenology, seasonal fluctuation

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