간행물
한국응용곤충학회 학술대회논문집
- 발행기관 한국응용곤충학회
- 자료유형 학술대회
- 간기 반년간
- 수록기간 2000 ~ 2024
- 주제분류 농수해양 > 농학 농수해양 분류의 다른 간행물
- 십진분류KDC 495DDC 595
권호리스트/논문검색
2010 한국응용곤충학회 정기총회 및 춘계학술발표회 (2010년 5월) 225건
101.
2010.05
구독 인증기관·개인회원 무료
Hong Ja Kim, Yong Il Kim, Yong Min Kwon, In Hee Lee, Byung Rae Jin, Yeon Soo Han, Hyang Mi Cheon, Young Jin Kang, Sook Jae Seo
Apolipophorin-III (apoLp-III) is a hemolymph protein whose function is to facilitate lipid transport in an aqueous medium in insects. Recently, apolipophorin-III in Galleria mellonella and Hyphantria cunea was shown to play an unexpected role in insect immune activation. We show here a novel possible function/role of the apoLp-III in insects. To investigate the genes which have a relationship with apoLp-III in fall webworm larvae, we reduced endogenous Hc apoLp-III mRNA levels in larvae via RNA interference (RNAi). The RNAi-mediated Hc apoLp-III reduction resulted in the reduction of antioxidants, like MnSOD, catalase, and glutathione S transferase as well as immune proteins. In particular, expression of MnSOD commonly decreased in fat body, midgut, and hemocytes following the knockdown of Hc apoLp-III, which induced an elevated level of superoxide anion in Hyphantria cunea larvae. The observed effect of Hc apoLp-III RNAi suggests that Hc apoLp-III is related to the action/expression of antioxidants, especially MnSOD.
102.
2010.05
구독 인증기관·개인회원 무료
A MnSOD gene was cloned from the fall webworm, H. cunea. The MnSOD cDNAs encode precursor proteins of 215 amino acid residues. The deduced amino acid sequences of the H. cunea MnSOD cDNA showed 76% identity to B. mori MnSOD and 62-56% to MnSOD sequences from other organisms. MnSOD and Cu/ZnSOD in H. cunea is expressed from all tissues. MnSOD expression is changed at a trace level in infected larvae, while Cu/ZnSOD expression is strongly changed against bacteria, and fungi. The expression level of Cu/ZnSOD increased by different artificial photoperiod (24L:0D), UV irradiation (312nm), and starvation condition, while the expression level of MnSOD only increased by starvation condition. Also, expression of MnSOD and Cu/ZnSOD showed no significant change in 0L:24D condition. In addition to expression levels of Cu/ZnSOD in H. cunea significantly increased by temperature stress and injection with paraquat, but reduced by injection with 10% H2O2. The expression level of MnSOD significantly increased by temperature stress and reduced by injection with 10% H2O2 and paraquat.
103.
2010.05
구독 인증기관·개인회원 무료
In order to establish an indoor-rearing system for A. Alcinous, the effect of temperature and pupal diapause was investigated. Temperature has been suggested as an important factor in determining the developmental rate, Lifespan and mortality in invertebrates. As temperature increase, the developmental period was gradually reduced. The developmental period of A. alcinous larvae was 12.9 days and 25.8 days at 30℃ and 20℃, respectively. And we investigated the effect of different chilling days on diapause termination. Under longday condition(LD 16:8h, 20℃) oxygen consumption gradually increase. But oxygen consumption on the first day of pupa was the highest and rapidly fell down the next day and attained lowest point after 7days, with average value of 1.92mol/min/g under shortday condition(LD 8:16h). Diapause pupae were chilled for 60, 75, 90, 105 days at 8℃ and thereafter subjected to LD 16:8h at 25℃. And emergence rate at 60~90days was 57.1~80.7%.
104.
2010.05
구독 인증기관·개인회원 무료
Wontae Kim, Sungwoo Bae, Haecheol Park, Kwanho Park, Sang beom Lee, Gilsang Jeong, Youngcheol Choi, Youngho Koh
The black soldier fly (BSF), Hermetia illucens, is known as a beneficial insect and feeds on organic materials derived from animals and human, resulting in reduction of food waste and conversion of organic materials. Despite of a lot of study about the BSF, there is a less information about composition of digestive enzyme of the BSF larva. Experimentally, there is no evidence about characterization of digestive enzyme of the BSF. We investigated biochemical property of digestive enzyme released from the salivary and gut of the BSF. Through digestive enzyme assay, we found that the BSF has amylase, lipase and protease activity in gut extracts, resulting in that the BSF belong to polyphagous insect group. In the BSF gut, trypsin-like protease activity showed one peak at various temperature and pH condition. This result means the BSF has probably a similar form of trypsin-like enzymes. On study of comparison of enzyme activity between the BSF and the housefly using the apiZYM kit, the BSF had more strongly digestive enzyme activity than one of the housefly about leucine arylamidase, alpha-galactosidase, beta-galactosidase, alpha-mannosidase and alpha-fucosidase. This finding supports that the BSF can ingest raw waste far more efficiently than any other known species of fly as reported previously.
105.
2010.05
구독 인증기관·개인회원 무료
Bumblebees are widely used to pollinate crops in greenhouses and fields. Here, we investigated whether different wake-up treatments during a short period of 1-3 days just before indoor rearing has any effects on oviposition and colony development of CO2-treated Bombus ignitus queens and artificially hibernated B. terrestris queens The wake-up regimes were defined as 16L for 1 day (16L-1), 16L per day for 3 days (16L-3), 24L for 1 day (24L-1), or 24D for 1 day (24D-1). Among these wake-up treatments, the oviposition rate and preoviposition period of B. ignitus queens reared at 24L-1 were 16.7-25.1% higher and 1.0-3.5 days shorter than other wake-up treatments. B. terrestris queens reared at 24L-1 also showed the best results for egg-laying characteristics, which were 8.9-18.8% higher for oviposition and 0.6-3.5 days shorter for preovipostion period than other wake-up treatments. Furthermore, B. terrestris queens reared at 24L-1 were 17.5% and 13.8% higher in rate of colony foundation and queen production, respectively, than other wake-up treatments. These results show that the most favorable wake-up treatment just before rearing for egg-laying and colony developmental characteristics of B. ignitus and B. terrestris queens was 24L-1. Overall, our findings indicate that a wake-up treatment just before rearing was effective for colony initiation and colony development of bumblebee queens.
106.
2010.05
구독 인증기관·개인회원 무료
An olfactory system is one of the complicatedly-equipped sensory facilities in the insect sensory systems, which is most essential for insect olfactory-driven behaviors relevant to survival such as finding hosts, mates, oviposition sites, and food resources. These behaviors are mostly controlled by circadian rhythm. The american cockroach, Periplaneta americana, has been an ideal model to extensively study olfactory system associated with complex behavioral repertoires and circadian controls of certain behaviors, respectively. Even though it is known that olfactory-related physiology in peripheral and central olfactory systems seems to be highly variable by circadian rhythms, little is known about how these are controlled at the neuronal and molecular levels. It has been reported that the plasticity in the olfactory system is modulated by a set of neuropeptides. However, it remains still elusive how these neuropeptides and neuroendocrine system interact in the peripheral systems to change olfactory responses in cockroaches. Here, current study focuses on the localization of neuropeptides and their receptors by using in situ hybridization and immunostaining methods. Also, expression level of these genes are evaulated by qRT-PCR methods. Circadian fluctuation of these genes seem to be important neurotransmission machineries in the periphery. Our current study suggests that microcircuits of neuronal systems in the peripheral olfactory organ play an important in olfactory modulation by circadian rhythm
107.
2010.05
구독 인증기관·개인회원 무료
The aim of this research was to demonstrate whether generalist-feeding caterpillars of Spodoptera exigua (Hübner) regulate their nutrient intake when faced with nutritionally variable food conditions. Six, chemically-defined diets were prepared that differed in the composition of protein and digestible carbohyrate:42% protein with 0% carbohydrate by dry mass(p42:c0), p35:c7, p28:c5.6, p7:c35, p5.6:c28 and p0:42. A total of 288 newly-ecdysed final instar(5th) caterpillars were collected and assigned randomly into 7 food pairing treatments, in which they were allowed to choose between two diet block:one with high P:C ratio and the other with low ratio [1) p42:c0 vs. p0:c42, 2) p42:c0 vs. p7:c35, 3) p35:c7 vs. p0:c42, 4) p35:c7 vs. p7:c35, 5) p35:c7 vs. p5.6:c28, 6) p28:c5.6 vs. p7:c35 and 7) p28:c5.6 vs. p5.6:c28]. Various aspects of food intake and larval performance variables were measured for each insect, including larval survival, stadium duration, pupal mass and body lipid composition. Results showed that the intake of protein and carbohydrate self-composed by caterpillars in all treatments converged to a point in a bivariate nutrient plot and the ratio of protein to carbohydrate averaged over these converging intake points was close to 1:1. This indicates that S. exigua caterpillars have capacity to balance their nutrient intake by defending their species-specific ‘intake target’ despite the differences in amount and proportion of nutrients available in each food choice treatment.
108.
2010.05
구독 인증기관·개인회원 무료
An expression of adult wing form in reaction to rearing density during nymphal stage was investigated in the brown planthopper, Nilaparvata lugens. Under mass rearing condition, the S-BPH and the 2007-BPH population predominantly showed a short-winged, brachypterous, form and a long-winged, macropterous, form, respectively. At rearing density of less than 5 nymphs in the 2007-BPH, 90% of females showed brachypterous form, but all males became macropterous form. The ratio of macropterous form in the 2007-BPH males decreased by 75% in 10 to 15 rearing density, but increased by more than 95% again at 20 to 30 rearing density. In the case of the 2007-BPH females, the ratio of macropterous form gradually grew from 31% at 10 nymphal density to 92% at 20 nymphal density. All females originated from the S-BPH showed brachypterous form, regardless of nymphal density. The ratio of macropterous males in the S-BPH rapidly went down from 74% at 1 nymphal density to 10% at 10 nymphal density. At 20 nymphal rearing density, all males of the S-BPH showed brachypterous form. On the other hand, other brachypterous (OJ67-BPH) and macropterous (2006-BPH) population produced similar results with above the two populations at 1 nymphal rearing density. In summary, these results demonstrate that wing form dimorphism in N. lugens is largely influenced by nymphal density and the wing form at a specific density (low or high) can be different by sex or N. lugens populations.
109.
2010.05
구독 인증기관·개인회원 무료
Min Ah Kang, Kyu Sik Yoon, Hye Ri Kwon, Min Woo Park, Eun Jin Kang, Mi Ja Seo, Yong Man Yu, Young Nam Youn
The multicolored Asian ladybird beetle, Harmonia axyridis, is a generalist predator of aphids also, shows a high level of phenotype polymorphism in color pattern of elytra. Although, it is not sure about genetic information of color polymorphism, it has been confirmed that this phenomenon comes from their genetic traits. The color of H. axyridis elytra is mainly composed of black and red pigment. Phenoloxidase (PO) plays an important role in many insect physiological functions, i.e. sclerotization and pigmentation of cuticle and melanization of parasites. Following activation, PO catalyses the hydroxylation of tyrosine and subsequent oxidation of phenolic substance into quinines, which are further converted to melanin. However, the molecular bases of H. axyridis color pattern formation are almost unknown but it may be that the different pro-POs have different expression. In this study, total RNA samples from four each color pattern individuals, for example, succinea 1, succinea 2, conspicua and spectabilis was extracted. A cDNA enconding pro-PO was molecular cloned from each color pattern of H. axyridis and its putative amino acid sequence shared homology with pro-PO of other insects. We are pursuing to elucidate that their pro-PO sequence will be similar with those other insect PPO sequence. There are also regions of high sequence similarity, including putative activation site and two copper binding sites.
110.
2010.05
구독 인증기관·개인회원 무료
EMS(ethyl methansulphonate)는 alkylalting 물질로 초파리를 비롯하여 꼬마선충, 애기장대, 모기 등에 single-site mutation을 일으키는 것으로 알려져 있으며, 자외선은 노출량을 쉽고 정확하게 조절할 수 있어 곤충의 돌연변이 유발에 사용된다. 본 연구에서는 무당벌레의 번데기에 0.1과 1%농도의 EMS를 처리한 것과 UV-A(360mm)에 1시간과 12시간 노출시킨 것을 대상으로 발육기간과 성비, 색상패턴별 출현비율을 조사하였다. 이와 더불어 돌연변이원 처리가 무당벌레의 자손세대에 미치는 영향을 조사하기 위해 돌연변이원을 처리한 번데기에서 우화한 성충의 자손세대를 처리농도, 처리시간별로 동일한 진딧물을 공급하여 F2세대까지 사육하여 결과를 얻었다. EMS-1%와 UV-A 12시간처리구의 경우, 우화 세대의 성충이 산란한 알이 부화되지 않는 경우가 있었으며, 발육기간은 EMS-0.1%처리구와(무처리: 20.24±1.90; 0.1%: 23.39±1.83; P=0.00), UV-A 1시간, 12시간 처리구에서 무처리구에 비해 발육기간이 증가하였다(무처리: 21.43±1.79; 1Hr: 22.30±1.68; 12Hr: 22.75± 1.76; P=0.00). 우화 세대의 성비는 EMS와 UV-A에 따른 차이없었고, 생존율은 EMS-1% 처리에서 크게 감소 하였다(무처리: 95.23±8.24; 1%: 42.70±19.15; P=0.05). EMS와 UV-A 처리를 하면 발육기간동안 비정상적 탈피현상이 많았다. UV-A를 처리한 비멜라닌계통 모세대의 자손세대는 모든 개체가 비멜라닌계통으로 출현된 반면, EMS-1% 처리구에서는 비멜라닌계통의 출현비율이 70%로 EMS에 의한 자손세대의 색상패턴의 변화를 확인하였다
111.
2010.05
구독 인증기관·개인회원 무료
Cheongwon Moon, Kikwang Kim, Jongil Beom, Younyeong Moon, Mija Seo, Kyungsook Whang, Youngnam Youn, Yongman Yu
Gut symbiotic microorganisms of insects are known that play important roles in the digestion, development, survival, and reproduction of host insects, and it is widely accepted that symbionts synthesize essential amino acids or vitamins for host insect among these relationship. More recently, however, it has become increasingly apparent that symbiont's contribution to their host are not limited to nutrition. Actually, these symbionts are frequently observed near an insect's digestive tract. In this study, we isolated and identified gut bacteria of ladybird, Harmonia axyridis, which is a predator and used the factor for biological control of aphids, and was aimed to survey gut bacteria affecting to ladybird's biological or ecological characteristics. We separated the guts of larvae and adults ladybird and cultured them in 4 media, such as NA, skim-milk, CMC and CMA. About 33 isolates including genus Arthrobacter were identified in this study. These were cultured in NA media with several antibiotics. We selected ofloxacin and penicillin that inhibited these bacteria growth in media, and reared ladybirds as prey with aphids treated ofloxacin and penicillin 1000ug/1ml concentration. After that, weight of pupae, larval stage, emergence stage, fecundity and hatching rate were investigated. It was shown that, ofloxacin and penicillin treatment was caused by weightless of pupae, fecundity and delay of larval stage, and the affected hatching rate as well.
112.
2010.05
구독 인증기관·개인회원 무료
Cuticular hydrocarbons (CHCs) were analyzed using GC and GC-MS, and compared with developmental stages of the bean bug, Riptortus pedestris. Carbon numbers on each developmental stages differed from 14-19 in eggs to 4th nymph, 25 in 5th nymph, and over 30 in last nymph that until adult emergence. Carbon numbers are increased to 16-17 carbons over time in newly emerged adults, 18-22 in 1 and 3 days after emergence, respectively; 23-27 in 6 days after emergence; approximately 30 in over 10 days after emergence. Carbon numbers increased as passed days after emergence. Riptortus pedestris consisted of n-nonacosane on almost all developmental stages, and followed by n-hentriacontane and 13,17-;15,19-demethyltritriacontane. Eggs, however, consisted of unknown compounds with high proportion and followed by n-heptacosane, and newly emerged adults also has a high proportion of n-heptacosane. From the above results, CHCs on developmental stages of the bean bug consist of n-alkane with saturated hydrocarbons (36-65 %), followed mono- or di- methylalkanes. However, newly emerged female and male adults mostly consisted of methyl-alkane. The major constituents of CHCs on the developmental stages of Riptortus pedestris is differently proportioned, but hardly showed the difference in their composition.
113.
2010.05
구독 인증기관·개인회원 무료
‘잎을 마는 바구미(leaf-rolling weevils)’로 알려져 있는 거위벌레류(Rhynchitidae, Attelabidae)는 식식성 곤충(obligatory phytophagous)이다. 전 세계적으로 주둥이거위벌레과(Rhynchitidae) 1,110종과 거위벌레과(Attelabidae) 1,000종이 보고되어 있다(Legalov, 2003). 거위벌레류는 뉴질랜드와 하와이를 제외하고, 전 세계적으로 분포하고 있으나, 대부분의 종은 아열대지역과 열대지역에 서식하고 있다. 가장 많은 종수는 동양구 (Oriental), 열대아프리카(Afrotropical), 신열대구(Neotropical)에서 관찰된다. 거위벌레류 의 특징은 자손을 위한 특별한 보살핌이라고 할 수 있다. 어떤 거위벌레류는 유충의 성장과 먹이를 위해 독특한 재단법을 이용하여 잎덩이(요람, leaf rolls, cradle)를 만들기도 하고, 다른 종들은 식물의 과실이나 꽃, 줄기 등을 유충의 성장을 위해 이용한다. 특히 목거위벌레아과(Apoderinae)는 신열대구, 신북구에서는 전혀 분포하지 않고, 오스트리아구에서는 소수의 종을 제외하고는 역시 분포하지 않으며, 거위벌레과에서 가장 나중에 분화된 분류군(Legalov, 2005)으로 요람을 다른 종에 비해 섬세하게 대부분 짧은 원통형 요람을 만드는 것이 특징이다. 본 연구에서는 목거위벌레아과 10종의 요람형을 기재하는 동시에 요람의 형태와 잎의 재단선에 따라 요람형 분류를 시도하여 그 결과를 보고하는 바이며 요람형의 용어는 Suzuki and Uehara(1996a)에 따랐다.
114.
2010.05
구독 인증기관·개인회원 무료
The life table statistics of diamondback moth on the transgenic Chinese cabbage (line: SKCP) with myrosinase gene was compared with that on the non transgenic Chinese cabbage (line: SC) at 25±1℃. Adult life span and number of progeny of P. xylostella on the SC and SKCP lines were similar to each other. The sex ratio, developmental period, intrinsic rate of increase and finite rate of increase of P. xylostella on SC and SKCP were not significantly different in both treatments (sex rati t=-1.60; df=220; P=0.1108, developmental period: t=-0.55; df=220; P=0.5803, intrinsic rate of increase: t=-0.11; df=45; P=0.9172). However, the finite rate of increase and net reproduction were significantly different in between SC and SKCP lines (finite rate of increase: t=2.26; df=45; P=0.0287, net reproduction: t=2.08; df=45; P=0.0442). This work was supported financially by Biogreen21 project of Rural Development Administration (No. 20070301-034-010)
115.
2010.05
구독 인증기관·개인회원 무료
Myzus persicae, Heliothis assulta and Frankliniella occidentalis are the most severe pests of pepper in Korea. IPCC (Intergovernmental Panel on Climate Change) reported that the temperature would increase 7℃ at the end of this century. According to the elevated temperature, the pest population will be grow dramatically. We need to predict the pest-population size to maintain good crop productivity. DYMEX and CLIMEX are commercial software developed by CSIRO in Australia, to build and simulate population dynamics models. Using this software, we predicted population dynamics of M. persicae, H. assulta and F. occidentalis applying past climate data (1970) and future climate data (2070) which were generated by National Institute of Meteorological Research (NIMR). The population growth rates of M. persicae, H. assulta and F. occidentalis were 6300, 16 and 950 times, respectively, with 5 degree elevation. Therefore pest management should be conducted intensively in the future.
116.
2010.05
구독 인증기관·개인회원 무료
The effects of the genetically modified virus-resistant pepper (line: H15) and the Non-GM pepper (line: P2377) on the insect community in the pepper cultivation area were evaluated. Sampling was conducted using yellow sticky traps and pheromone funnel traps in Anseong and Deokso fields. Total number of insects caught on sticky trap were 3924 individuals at GM pepper and 3670 individuals at Non-GM pepper in Anseong and 2362 individuals at GM and 2528 individuals at Non-GM in Deokso, respectively. The total number of the insect individuals caught by sticky trap was not shown significant differences between GM and Non-GM pepper at Anseong and Deokso fields, respectively. The number of aphids per sticky trap ranged from 11.60±2.02 to 1.92±0.96 at Non-GM and from 11.56±2.15 to 0.33±0.23 at GM in Anseong, and from 2.78±1.22 to 0.11±0.08 and from 2.73±0.84 to 0.11±0.08 at Non-GM and GM pepper in Deokso, respectively. There were no significant differences in seasonal occurrences of aphids caught on sticky traps in GM and Non-GM pepper at both fields, and significant differences in aphids population density between Non-GM and GM were not observed.
117.
2010.05
구독 인증기관·개인회원 무료
현재 우리나라의 수도해충으로는 114종이 기록되어 있다. 그 중 12종이 주요 해충으로 알려져 있으며 최근에는 애멸구를 비롯한 멸구류와 매미충류의 발생 빈도가 증가하고 있으며, 혹명나방의 비래밀도가 격년으로 증감하고 있다. 벼애나방 및 줄점팔랑나비가 국지적으로 다량 발생하여 보고가 접수되고 있는 실정이다. 끝동매미충의 피해는 간접적으로 벼위축병, 및 누른 오갈병의 매개와 직접 흡즙에 의한 벼잎의 황변, 분얼수 감소 및 염실장애 등으로 피해를 주고 있으며, 발생이 많은 남부지방에서 피해 및 방제가 문제가 되고 있는 실정이다(엄 등 1978). 우리나라에서는 끝동매미충의 방제를 위해 내충성 품종육성(최 등 1973, 최, 1975, 김 1978), 약제저항성 검정(최, 1976), 우수살충제선발( 최 등 1977, Hokyo 1971)등의 연구가 이루어져 있으나, 최근 지구온난화에 따른 끝동매미충의 본답으로의 이동시기 등에 관한 연구는 전무한 실정이다. 한편 해충의 적절한 방제 및 관리를 위해서는 대상해충의 발생경과를 포장을 중심으로 한 생활사와 개체군 동태에 관한 기초성적의 누적이 필요하다. 따라서 본 연구는 주요 지역의 과거 30여년간의 유아등 자료를 바탕으로 월동 후 1세대의 본답으로의 50% 이동 일수 변화를 살펴봄으로써 향후 이들의 발생시기 및 방제전략 수립의 기초자료로 활용함을 목적으로 하고 있다
118.
2010.05
구독 인증기관·개인회원 무료
2000년대 초 중국으로부터 국내에 유입되었으리라 추정되는 꽃매미(Lycorma delicatula White)는 김 등(2006)이 국내의 천안, 연기, 서울 관악산 등지에서 최초 발생 보고한 이래, 해마다 그 발생면적이 급증하고 있다. 최근 5년 동안의 포도원과 그 주변의 발생 면적을 상황을 살펴보면 2006(1ha)→2007(7ha)→2008(81ha)→2009(2,946ha)→2010(8,478ha)로 해마다 7배에서 30배 이상으로 발생면적이 예측할 수 없을 정도로 급증하고 있다. 이렇게 꽃매미가 급증하는 원인은 이들은 1년에 1세대가 경과함으로써 국내에 서식하고 있는 다른 매미류(4~7년)에 비해 세대기간이 짧고, 암컷 한마리당 산란수가 400~500(왕 등 1981)개 정도로 매우 많으며, 현재 국내에 이들의 밀도를 억제할 수 토착천적의 부재가 주요한 요인으로 알려져 있다.또한 월동난의 생존율이 매우 높아 이듬해 밀도 급증의 큰 원인이 되고 있다. 현재 국내의 꽃매미 발생현황은 9개 시도 49개 시군(2010년 농식품부 총조사)에서 발생이 되고 있으므로 국내의 전 지역에서 월동이 가능한 것으로 추측된다. 따라서 본 연구에서는 지역별로 꽃매미 월동난의 생존율을 조사 분석함으로써 이후 확산가능 지역을 추정할 수 있고, 또 2008년과 2009년의 월동 생존율을 비교함으로써 동계 혹한이 꽃매미 월동난의 생존율에 미치는 영향을 분석하고자 함에 있다.
119.
2010.05
구독 인증기관·개인회원 무료
현재 우리나라에서 멸종위기보호야생동식물로 지정되어 있는, 꼬마잠자리는 습지의 식생천이나 대규모 개발에 의해서 서식지가 감소하고 있는 실정이다. 본 연구에서는 꼬마잠자리의 독특한 서식지에 출현하는 식물상을 조사함으로서 향후 꼬마잠자리의 서식지 복원 및 보전을 위한 기초자료를 제공하고자 한다. 조사지역은 꼬마잠자리가 높은 밀도로 서식하고 있는 3곳(문경 농암면, 문경 산북면, 영동)으로 하였다. 서식지의 환경적 특성은 사면의 하부에서 상부까지 서식지의 위치에 상관없이 연중 수심이 2-10cm로 유지되면서, 직사광선이 차단되지 않는 개방된 습지에서 주로 서식하고 있었다. 꼬마잠자리 서식지에 분포하는 관속식물은 29과 50속 62종 9변종 2품종으로 총 73분류군으로 조사되었다. 조사된 식물들의 각 과별 구성종은 사초과와 벼과가 각각 21.9%와 13.7%로 많이 나타났다. 조사 지역별로는 영동에서 37분류군, 문경 산북에서 48분류군, 문경 농암에서 43분류군이 확인되었다. 이들 3곳에서 공통으로 출현한 식물종은 버드나무, 고마리, 벼룩나물, 좀고추나물, 매듭풀, 바늘꽃, 통발, 골등골나물, 별날개골풀, 골풀, 청비녀골풀, 사마귀풀, 뚝새풀, 조개풀, 도깨비사초, 방동사니대가리, 쇠털골로 총 17분류군이었다. 출현한 관속식물 73분류군의 생활형을 살펴보면, 휴면형은 수생식물(HH)이 24종, 1년생식물(Th)이 15종, 1년생수생식물(HH(Th))이 14종으로 많이 출현했다. 번식형에서 산포기관형은 풍력산포와 중력산포를 가지는 것(D1,4) 이 25종, 중력산포형(D4)이 23종으로 많이 출현했다. 지하기관형은 영양번식형 (R5)이 34종, 자동산포형(R3)이 15종으로 많이 출현했다. 생육형은 직립형(e)과 총생형(t)이 각각 21종으로 많이 출현했다.
120.
2010.05
구독 인증기관·개인회원 무료
가루이류, 응애류, 나방류 알과 어린유충 등을 포식하는 참딱부리긴노린재에 대한 발육과 산란에 미치는 온도의 영향을 구명하기 위하여 25, 30, 35, 37.5, 40℃와 습도 70±10% 조건에서 조사하였다. 참딱부리긴노린재의 알 부화율은 25～35℃에서 80%이상이었으나, 37.5℃는 59.98%였고, 40℃는 전혀 부화하지 않았다. 알 발육기간은 25℃가 13.22일로 가장 길었고, 37.5℃가 4.98일로 가장 짧았다. 약충(1～5령)의 발육기간은 25, 30, 35, 37.5℃에서 각각 30.68 18.95, 14.34, 12.35일로 온도가 높을 수 록 짧아졌으며, 40℃에서는 발육하지 못하는 것으로 나타났다. 약충 발육기간 동안 생존율은 25℃에서 56.1%로 가장 높았으나, 나머지 온도에서는 28.4%이하로 매우 낮아 대량사육과정에서 생존율을 높일 수 있는 기술이 필요하다. 성충의 평균 산란기간은 25℃가 37.93일로 가장 길고, 40℃가 6.46일로 가장 짧았으며, 성충 우화 후 70%산란기간은 25, 30, 35, 37.5, 40℃에서 각각 39, 23, 19, 11, 5일이었다. 총 산란수는 35℃에서 111.19개로 가장 많았고, 40℃가 22.11개로 가장 적었다. 성충의 수명은 25, 30, 35, 37.5, 40℃에서 각각 62.45, 39.32, 33.81, 17.00, 9.31일로 온도가 높을 수 록 짧아지는 것으로 나타났다. 참딱부리긴노린재는 35℃의 고온에서 정상적인 발육과 산란을 하는 것으로 보아 비닐하우스 고온 조건에서 재배되는 참외 등 포복성 작물에 발생하는 가루이류 등의 해충 생물적방제 천적으로 이용이 가능할 것으로 추정된다.
