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RISS 인기검색어
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- 저자 : F. Abang (검색결과 3 건)
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Abang F.,Karim Catherine Korean Society of Applied Entomology 2005 Journal of Asia-Pacific Entomology Vol.8 No.1
The diversity and abundance of the macromoths were investigated in a hill dipterocarp forest, Poring, Sabah, using modified Pennsylvanian light traps conducted bimonthly for a total of 24 nights from March through December 1999. The light-traps were set for five continuous nights for every two months during the study period. A total of 1,169 species from 9,624 individuals and 15 families of the macromoths were recorded. The overall species diversity index for the macromoths was found to be extremely high ($348.56{\pm}12.56\;(95\%\;confidence range))$. The hill dipterocarp forest at Poring was characterized by the dominance of Noctuidae and Geometridae and the presence of the single species of the Bornean Brahmaeidae and five rarely encountered species of Saturniidae. The results of this study show that most common species in Poring are Asura sp. (Arctiidae: Lithosiinae), Chamaita trichopteroides Walker (Arctiidae: Lithosiinae), Asura bizonoides Walker (Arctiidae: Lithosiinae) and Heterostegane warreni Prout (Geometridae: Ennominae. These species could be considered as characteristic of the hill dipterocarp macromoth fauna. Twenty-five percent of the total species collected (298 species) are considered as rare species, being represented by single individuals, or singletons. These singletons were highly represented in the Geometridae ($33\%$), followed by Noctuidae ($24\%$) and Lymantriidae ($11\%$). Species diversity of the macromoth in Poring is further discussed.
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Environmental quality and economic growth: A panel analysis of the “U” in Kuznets
( Usenobong F. Akpan ),( Dominic E. Abang ) 한양대학교 경제연구소 2015 JOURNAL OF ECONOMIC RESEARCH Vol.20 No.3
The primary motivation behind this study was to search for evidence of the link between environmental quality and economic growth so as to answer the relevant question of whether economic growth alone could serve as a long-run solution to environmental damage as implied by the EKC hypothesis. Here we analyze the relationship using a panel of 47 countries over the period 1970 -2008. Using Random-effect estimation and two-stage least squares, our results lead to the following conclusions: relying on a quadratic model can easily mislead researchers to ratify the existence of EKC; the EKC hypothesis ceased to hold whenever an alternative functional form (cubic) is employed. At best, the relationship between economic growth and environmental quality is shown to be typified by an N-shaped curve. The paper maintains that simply waiting for an automatic arrival of a delinking point for environmental damage given long-run growth will not be a feasible solution to environmental quality. Proactive policies and measures are required to mitigate the problem.
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F. Abang,Catherine Karim 한국응용곤충학회 2005 Journal of Asia-Pacific Entomology Vol.8 No.1
The diversity and abundance of the macromoths were investigated in a hill dipterocarp forest, Poring, Sabah, using modified Pennsylvanian light traps conducted bimonthly for a total of 24 nights from March through December 1999. The light-traps were set for five continuous nights for every two months during the study period. A total of 1,169 species from 9,624 individuals and 15 families of the macromoths were recorded. The overall species diversity index for the macromoths was found to be extremely high (348.56±12.56 (95% confidence range)). The hill dipterocarp forest at Poring was characterized by the dominance of Noctuidae and Geometridae and the presence of the single species of the Bornean Brahmaeidae and five rarely encountered species of Saturniidae. The results of this study show that most common species in Poring are Asura sp. (Arctiidae: Lithosiinae), Chamaita trichopteroides Walker (Arctiidae: Lithosiinae), Asura bizonoides Walker (Arctiidae: Lithosiinae) and Heterostegane warreni Prout (Geometridae: Ennominae. These species could be considered as characteristic of the hill dipterocarp macromoth fauna. Twenty-five percent of the total species collected (298 species) are considered as rare species, being represented by single individuals, or singletons. These singletons were highly represented in the Geometridae (33%), followed by Noctuidae (24%) and Lymantriidae (11%). Species diversity of the macromoth in Poring is further discussed.
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