Species Associations with Spatial Autocorrelation Analysis of Pinus rigida and Pyrola japonica

Huh, Man-Kyu,Huh, Hong-Wook,Kim, Chang-Ho The Ecological Society of Korea 1999 Journal of Ecology and Environment Vol.22 No.6

The spatial distributions of allelic frequencies and ecological traits by randomization were studied in the natural population of two species (Pinus rigida and Pyrola japonica). Both species showed significant positive spatial autocorrelation as measured by Moran's I. In P. rigida, the genetic similarity was shown in individuals within up to a scale of 18 m distance and this is partly due to combination of pollen and seed dispersal by wind or men. In P. japonica, significant spatial autocorrelation was consisted of a scale of 8 m intervals. These population structure in the distribution of allelic frequencies is related to mating systems such as outcrossing and vegetative spread. The results also indicate that positive species associations between P. rigida and P. japonica can occur when both species select the same habitat or require the same environmental conditions.

菜蔬用 고구마 잎자루 增量 獲得을 위한 栽培 方法

허홍욱,허만규,정수동 부산대학교 사범대학 1996 교사교육연구 Vol.33 No.-

Two experiment were conducted to find out the best cultivars practces suitable for yield increase sweet potato petioles as vegetables from the various planting methods. The highest petiole yield was obtained from the Shinmi race and its vinyl-mulchened cultural practices after planting sprouted tuber root pieces on the high bed. The optimal concentration of IAA on leaf petiole was 5ppm. Sweet potato petioles have an optimum cutting point(2nd cutting) seeding method and development which varies depending on the sprout. C4-type was effective in the planing methods for sweet potato petioles.

숙근메밀과 그 근연종의 전기영동을 이용한 Isozymes 및 Protein Patterns 분석에 관한 연구

허홍욱,김종희,허만규 부산대학교 사범대학 1991 교사교육연구 Vol.22 No.-

In the genus Fagopyrum, four isozymes have been used in the analysis of allozyme variation by the method of starch gel electrophoresis. Additionally, protein patterns were investigated by the method of SDS-polyacrylamide gel electrophoresis. 1. The assayed results by the method of starch gel electrophoresis: Alcohol dehydrogenase(ADH) showed a band with strong activity in the anodal side. ADH was appeared almost monomorphic. Malate dehydrogenase(MDH), which might be controlled of five or more loci, was very complicated band patterns. The populations of F. cymosum and F. tataricum were appearently monomorphism. But F. esculentum(common buckwheat) was shown polymorphism, and the frequency of fast allele was 22.3% on the average. The 831 seeds examined for 6-phosphogluconate dehydrogenase (6-PGDH) were almost monomorphic. Phosphoglucomutase(PGM) was shown polymorphic at two loci. Each frequency of fast and slow alleles in PGM-2 locus was 22.1% and 1.2% at the F. cymosum.

과학전람회 작품 중 중학교 과학분야의 분석

허홍욱,손수옥,허만규 한국과학교육학회 2003 한국과학교육학회지 Vol.23 No.2

The study is to analyze the middle school-science parts among the products of nation-wide science exhibition for eleven years recently and the results of compared to the content of science-textbooks of middle school. The number of observation in the student parts among the products of nation-textbooks of middle school. The number of observations in the student parts among the products of nation-wide science exhibition was the highest in all methods studied, whereas, most teachers surveyed experiments in their products. The mean Shannon's diversity index (DI) was same trend for students and teachers. There was a non-significant difference of the methods in students and teacher groups according to years and the association between students and teachers were closely connected with methods. The correlation between the content of students' products and texts of middle-school was highly positive for earth science, chemistry, and biology, whereas physics showed negative correlation.

인공산성비가 민물새우의 형태 및 단백질 합성에 미치는 영향

허홍욱,허만규 부산대학교 환경문제연구소 1994 環境硏究報 Vol.12 No.-

This experiment was performed to determined the Neocaritina denticulata to simulated acid rain at various pH levels. pH levels of simulated acid rain ranged from pH 3.0 to pH 7.0. A general decrease in Neocaritina denticulata growth was observed with decreasing pH concentration. As acidity increase, a definite reduction in body weight, length of antenna, thoracic appendage, and total soluble protein was observed across the pH gradient. Interrelationship among morphological characters as affected by decreasing pH levels showed the significantly positive correlation. This suggested that one character affected greatly to the other characters.

논둑 태우기가 해충 및 천적류에 미치는 영향과 그 시기 설정에 관한 연구

허만규,허홍욱,문두호,정수동 부산대학교 사범대학 과학교육연구소 1996 科學敎育硏究報 Vol.23 No.-

For a long time, levee-burning in Korea have been conducted to kill the fauna of insect pests. We conducted to find out whether the levee-burning could justifiable for the suppression of insect pests, partially the spider. Density of both pest and enemies grew higher in burned areas than in unburned from about 90 days after the levee-burning. Density surveys on pests and their enemies(mostly spiders) was carried out unto the mid May at an experimental paddy field located in Kimhae. Wingless spiders could requires even larger time than winged pest species to re-establish in the center region of the widely burned field. However, according to the present point of view, the opinion that levee-burning is helpful for controling pests which over winter on levee areas could not be justifiable.

釜山地域의 歸化植物 調査 報告

허만규,홍순형 부산대학교 환경문제연구소 1994 環境硏究報 Vol.12 No.-

筆者들이 이번 調査를 통해서 確認한 釜山地域의 歸化植物은 총 36科 176種인 것으로 밝혀졌으며 새로 記錄된 種은 9科 74種이다. 種의 分布를 보면 특히 制限된 곳에서만 分布하는 것에서부터 全地域에 普遍的으로 分布하는 것이 있었으며 그 中에서도 局地的 分布가 많은 것은 無機環境등의 傾渡에 대한 耐性의 範圍의 差違等을 反映하고 있는 것으로 사료된다. 歸化植物의 대부분의 種이 一年生 植物이었으며 人間의 實生活와 關係있는 몇 科에 偏重되어 있었다. In an investigation on the naturalized plants of Pusan in Korea, there were found in 36 families, 176 species. In this paper 9 families 74 naturalized species were newly described. The families are as fellows; NYCTAGINACEAE, PORTULACACEAE, MALACEAE, TROPAEOLACEAE, STERCULIACEAE, LEACEAE, BAMBUSASACEAE, LILIACEAE, ORCHIDACEAE. The species were distributed from narrow regions to wide regions. Especially, most of them distributed in the narrow region. That reflects the differences of tolerance on the environmental factors. Most of the naturalized plants were annual and were concentrated in the species related to a practical life.

한국 자귀나무 집단의 6-phosphogluconate dehydrogenase에 의한 다형현상

허만규,윤숙경,허홍욱 釜山大學校 師範大學 1994 교사교육연구 Vol.29 No.-

The objectives of the present report were to determine the levels of genetic diversity among the characteristics of Albizzia juribrissin and to examine the organization of genetic variation within the species and the patterns of genetic differentiation between populations. Starch gel electrophoresis was used to examine the allozyme variation of 6-PGDH. The frequency of slow allele for the 6-PGDH locus was 5.9% on the average (range ; 0.0-18.5). The highest (0.2210) and lowest (0.0234) distance values were exhibited by the population pairs Goseong-Nonsan and Changhung-Daejeon, respectively. The average heterozygosity varied between 0.000 in Kyongju population and 0.291 in Chilkok population.

한국 남부 지역에 분포하는 아카시나무의 유전적 병이 및 집단구조

허만규,허홍욱 釜山大學校 師範大學 1997 교사교육연구 Vol.34 No.-

Enzyme electrophoresis was used to estimate genetic diversity and population structure of Robinia psudoacia L. in southern part of Korea. The percent of loci polymorphic per population was 77.8%. Genetic diversity at the species level was high (Hes = 0.346; Hep = 0.336), whereas the extent of the population divergence was relatively low ( = 0.04). F, a measure of the deviation from random mating within the 7 populations, was 0.332. Indirect estimate of the number of migrants per generation (Nm = 6.03) indicates that gene flow is high among Korean populations of the species. In addition, analysis of fixation indices revealed a substantial homozygosity deficiency in some populations and at some loci. This indicates that some populations sampled may have been substructured largely due to outcrossing mating system and widespread gene flow coupled with Wahlund effects and low genetic drift.

대학생들의 환경문제 의식에 관한 연구

허만규,이송진,허홍욱 한국환경과학회 2003 한국환경과학회지 Vol.12 No.3

This study was attempted to analyze sophomores' consciousness for environmental problems. In order to achieve this purpose, a method of questionnaire was administered to total 387 students selected from four universities in Busan. There were surveyed questions as follows, the conception of environmental problems, the condition of dwelling place and surrounding of home, the problems of environmental pollution, knowledge and concern for environmental problems, necessity of environmental education of school, and the environmental policy in Korea. Most students responded that the most serious environmental problem is water pollution. Most respondents have recognition the necessity of schooling for environmental education, whereas current-contents of environmental education are not enough to modify students' attitude and behavior.