CAJ | 학술논문

目的以齐氏姬鼠为对象,调查分析单一鼠种体表恙螨的寄生状况. 方法选取云南省的25个县(市)作为现场调查点,在鼠笼内放置食饵诱捕齐氏姬鼠,收集其体表寄生的恙螨,用霍氏液封片、固定后在显微镜下对恙螨进行分类鉴定.对云南省齐氏姬鼠体表恙螨的构成比、染螨率、平均多度、感染度、物种丰富度指数、Shannon-Wiener多样性指数等指标进行统计分析.应用空间分布型指数测定优势恙螨在同一鼠种(齐氏姬鼠)不同个体之间的空间分布格局.用Preston对数正态模型研究单一鼠种(齐氏姬鼠)体表恙螨群落的种-多度分布情况,并在此基础上对群落内总物种数进行预测. 结果从所捕获的1 620只齐氏姬鼠体表共采集到恙螨8 038只,分类鉴定出3亚科11属88种(包括7种待定种),总染螨率为28.83％,平均多度为4.93只螨/鼠,二者之间存在直线正相关,相关系数r=0.87.在所采集的88种恙螨中,有5种优势恙螨,其中小板纤恙螨(Leptotrombidium scutellare)是最主要的优势恙螨,其构成比为27.05％.主要恙螨在齐氏姬鼠不同个体之间呈聚集型分布.齐氏姬鼠体表恙螨群落的种-多度分布服从Preston对数正态分布,理论曲线的拟合优度较高(R2=0.89).在种-多度分布理论曲线拟合基础上,根据Preston总物种预测方法,初步推测出齐氏姬鼠体表恙螨的总物种数大约为110种,即:在目前的宿主样本数量(1 620只齐氏姬鼠)下,约有22种恙螨未采集到. 结论云南省齐氏姬鼠体表寄生恙螨种类丰富,物种多样性较高.小板纤恙螨是云南省齐氏姬鼠体表最主要的优势恙螨.大样本研究在恙螨生态研究中十分重要.
목적 이제씨희서위대상,조사분석단일서충체표양만적기생상황. 방법 선취운남성적25개현(시)작위현장조사점,재서롱내방치식이유포제씨희서,수집기체표기생적양만,용곽씨액봉편、고정후재현미경하대양만진행분류감정.대운남성제씨희서체표양만적구성비、염만솔、평균다도、감염도、물충봉부도지수、Shannon-Wiener다양성지수등지표진행통계분석.응용공간분포형지수측정우세양만재동일서충(제씨희서)불동개체지간적공간분포격국.용Preston대수정태모형연구단일서충(제씨희서)체표양만군락적충-다도분포정황,병재차기출상대군락내총물충수진행예측. 결과 종소포획적1 620지제씨희서체표공채집도양만8 038지,분류감정출3아과11속88충(포괄7충대정충),총염만솔위28.83％,평균다도위4.93지만/서,이자지간존재직선정상관,상관계수r=0.87.재소채집적88충양만중,유5충우세양만,기중소판섬양만(Leptotrombidium scutellare)시최주요적우세양만,기구성비위27.05％.주요양만재제씨희서불동개체지간정취집형분포.제씨희서체표양만군락적충-다도분포복종Preston대수정태분포,이론곡선적의합우도교고(R2=0.89).재충-다도분포이론곡선의합기출상,근거Preston총물충예측방법,초보추측출제씨희서체표양만적총물충수대약위110충,즉:재목전적숙주양본수량(1 620지제씨희서)하,약유22충양만미채집도. 결론 운남성제씨희서체표기생양만충류봉부,물충다양성교고.소판섬양만시운남성제씨희서체표최주요적우세양만.대양본연구재양만생태연구중십분중요.
Objective To investigate and analyze the infestation status of chigger mites on a single rodent species,Apodemus chevrieri.Methods The field investigation was done in 25 counties of Yunnan Province.Food bait was placed in mouse traps to prey on A.chevrieri.The parasitic chigger mites on the body surface of the animals were collected,and then mounted on slides with Hoyer's medium,classified,and identified under a microscope.Some conventional statistical methods were used in the analysis of chigger mites on the rat (A.chevrieri),including constituent ratio,rate of mite infestation,mean abundance,mean intensity,species richness and Shannon-Wiener's index.The spatial distribution indices were used to determine the spatial pattern of the dominate chigger mites among different individuals of the host (A.chevrieri).Preston's lognormal model was used to describe the species-abundance distribution of chigger mite communities on A.chevrieri.Based on the species-abundance distribution,the total species number of chigger mites was estimated.Results From the body surface of 1 620 individual rats (A.chevrieri),8 038 individuals of chigger mite were collected,which were identified to comprise 88 species in 11 genera of 3 subfamilies (including 7 unidentified species).The overall rate of mite infestation and mean abundance of chigger mites from all the rats were 28.83％ and 4.93 (mites/per examined rat) respectively.A linear correlation existed between rate of mite infestation and mean abundance with the correlation coefficient r =0.87.Of the collected 88 species of chigger mites,five species were determined as the dominant species.The constituent ratio of the main dominant species of chigger mites,Leptotrombidium scutellare,reached 27.05％.All the dominant species of chigger mites showed an aggregated distribution among different individuals of A.chevrieri.The species-abundance distribution of chigger mite communities was successfully fitted to Preston's lognormal model (R2=0.89).The total number of chigger mite species was approximately estimated as 110 species,and therefore about 22 species were missed in the sampling process.Conclusions As a single rodent species,A.chevrieri has a great potential to harbor abundant chigger mites with high species diversity in Yunnan Province of China.L.scutellare is the main mite species on A.chevrieri.A large host sample is recommended in the future field investigation in order to find more mite species.