• 대한수의학회지
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• 제35권3호
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• pp.505-513
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• 1995

Seventy wild rats were caught from Seoul city, Kyonggi, Kangwon, Honam, and yongnam provinces. All of them were in same species, Rattus norvegicus, except two R rattus from Kyonggi province. Seventy sera from wild rats were studied by immunofluorescent antibody assay for evidence of infection by spotted fever group rickettsia. The antidody prevalance was 37.14%(26/70) for spotted fever group rickettsia. The sero-prevalence rates for spotted fever group rickettsia antibody was the hightest in Kyonggi province with 55.56%(10/18), yongnam province with 50.00%(10/20), Kangwon province with 25.00%(2/8), Seoul city with 18.75%(3/16), and Honam province with 12.50%(1/8). The sero-positive rates difference between sexes were higher in female with 46.15%(12/26) than in male with 31.81%(14/44) for spotted fever group rickettsia. Twenty six of 68 Rattus norvegicus with antibody for spotted fever group rickettsia were in subadult with 50.00%(6/12), young adult with 38.89%(7/18), middle-aged adult with 35.29%(6/17), and old adult with 33.33%(7/21). No antibody was detected from R rattus.

• 대한수의학회지
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• 제36권4호
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• pp.773-782
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• 1996

Sixty wild rate (fifty eight of Rattus norvegicus and two R rattus) were caught from Seoul, Kyonggi, Kangwon, Honam, and Yongnam areas between August and October 1992. From liver homogenates of the wild rats, isoenzyme patterns were analysed by starch gel electrophoresis. Using 9 enzyme systems, eight electrophoretic types were identified among wild rats with genetic diversity per locus between 0.00 and 0.49 (Mean 0.15). R rattus from Kyonggi (Kanghwa) and Kangwon (Cholwon) were distinct from R norvegicus from nine regions with 0.581 in genetic divergence. Therefore genetic divergence was different not only in interspecies(0.581) but also in intraspecies(0.111~0.375). These data suggested that isoenzyme electrophoresis could be used as a potential application in taxonomic studies of wild rats.

• 한국환경생태학회지
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• 제27권5호
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• pp.550-560
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• 2013

한국산 집쥐속(Rattus)에 속하는 동물들을 2005년 4월부터 2012년 10월까지 제주도의 각처에서 채집하여 형태학적, 유전학적 종 동정과 형태적 특성, 2차 성적이형, 서식지 유형 등을 조사하였다. 연구결과, 제주도에서 포획된 Rattus 속 야생쥐들은 Rattus norvegicus와 R. tanezumi로 확인되었고, R. rattus는 확인되지 않았다. R. norvegicus는 제주도 내 각처에서 특히, 주택 밀집지역의 인가 내-외부에서 채집되었고, 일부는 자연환경인 해안이나 경작지, 산림에서 관찰되기도 하였다. R. tanezumi는 동물 사육 농장의 내외부에서만 확인되었다. 형태적 특성으로 R. norvegicus는 꼬리길이(TL)와 귀의 길이(EL)가 R. tanezumi에 비해 짧고, 이들 형질의 머리-몸통 길이의 비율인 T_HR, E_HR 등도 유의적인 차이를 보였다(p<0.05). 인구밀집 지역인 도심과 농촌 지역의 R. norvegicus와 개체군 사이에서는 도심지역 개체군의 체중이 더 무거운 것으로 확인되었다(p<0.05). R. norvegicus에서는 2차 성적이형 현상이 나타나지 않았으나, R. tanezumi는 암컷이 수컷에 비해 더 무거운 것으로 나타났다(p<0.05). 현재까지 보고된 연구결과와는 다소 다른 종의 분포와 서식환경을 보여주고 있는 본 연구 결과는 향후 추가연구를 통해 제주도와 한반도 포유류상의 재검토와 함께 서식지 분포 양상과 생태적 특성 등을 명확하게 구명해야함을 시사하고 있다.

• Animal Systematics, Evolution and Diversity
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• 제8권2호
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• pp.231-242
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• 1992

한국에 서식하고 잇는 집쥐속 2종 (곰쥐, Rattus rattus Linnaeus; 집쥐, Rattus norvegicus Berkenhaut)의 채집된 표본들의 31개 형태적 형질들을 통계적으로 분석하여 종내 지리적 변이와 종간 차이를 구명하였다. 염색체 G-bands와 C-bands도 비교하였으며, 미토콘드리아 DNA의 제한요소에 의한 절단 단편들의 분석도 하였다. 한국내 여섯지역의 곰쥐들은 형태적 형질에 있어서 서로 비슷하였다: 두동장, 미장, 염색체 핵형과 C-bands에 있어서는 일본산 곰쥐인 Rattus rattus tanezumi와 유사하였다. 한국내 일곱지역의 집쥐들은 형태적 형질에 있어서 서로 비슷하였다: 염색체 핵형은 동부 아시아산 집쥐인 Rattus norvegicus caraco와 유사하였다. 집쥐와 곰쥐는 형태적으로 형질뿐만 아니라, 염색체 핵형과 미토콘드리아 DNA도 차이가 있었다. 한국에 서식하고 있는 곰쥐의 옳바른 학명은 Rattus rattus tanezumi Temminck이고, 집쥐의 학명은 Rattus norvegicus caraco Pallas이며, 집쥐는 곰쥐와 다른 종임이 확인되었다.

• 한국동물학회지
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• 제25권2호
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• pp.81-92
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• 1982

한국내 4개 지역에서 채집된 17마리의 등줄쥐 (Apodemus agrarius coreae)의 G-와 C-banding patter을 분석한 결과 첫 번째 염색체쌍의 다형현상 (차단부 및 단부)은 동원체 주위의 이질염색질이 어떤 때는 short arm의 형태로 나타나기 때문이라는 것이 밝혀졌다. 한국내 2개 지역에서 채집된 곰쥐 (R. rattus rufescens)의 G-와 C-banding pattern을 분석한 결과 첫 번째 염색체쌍의 다형현상 (차단부 및 단부)은 pericentric inversion에 기인한다는 것이 밝혀졌다.

• Parasites, Hosts and Diseases
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• 제59권4호
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• pp.377-392
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• 2021

This paper is to illustrate the infestation and related ecological characteristics of chigger mites on the Asian house rat (Rattus tanezumi). A total of 17,221 chigger mites were collected from 2,761 R. tanezumi rats, and then identified as 131 species and 19 genera in 2 families. Leptotrombidium deliense, the most powerful vector of scrub typhus in China, was the first major dominant species on R. tanezumi. All the dominant mite species were of an aggregated distribution among different individuals of R. tanezumi. The species composition and infestations of chiggers on R. tanezumi varied along different geographical regions, habitats and altitudes. The species-abundance distribution of the chigger mite community was successfully fitted and the theoretical curve equation was ${\hat{S}}(R)={37e^{-(0.28R)}}^2$. The total chigger species on R. tanezumi were estimated to be 199 species or 234 species, and this further suggested that R. tanezumi has a great potential to harbor abundant species of chigger mites. The results of the species-plot relationship indicated that the chig-ger mite community on R. tanezumi in Yunnan was an uneven community with very high heterogeneity. Wide geographi-cal regions with large host samples are recommended in the investigations of chigger mites.

• Parasites, Hosts and Diseases
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• 제56권1호
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• pp.93-100
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• 2018

Some small mammals occur as household pests and harbour a number of parasites that could be of public health importance. This study profiled the helminth and protozoan parasites in trapped small mammals within and around human dwelling places (houses) located across 4 major towns (Auchi, Benin, Ekpoma, and Uromi) and environs in Edo state, Nigeria. Six genera (Apodemus sp., Crocidura sp., Mastomys natalensis, Mus musculus, Rattus sp., and Sorex sp.) were identified from 502 trapped small mammals. Overall, M. musculus (71.9%) and Rattus rattus (20.1%) were the most frequently trapped. In total, on examination of blood, gastrointestinal contents, and brain tissues, 12 helminth taxa (Angiostrongylus sp., Aspicularis sp., Capillaria sp., Gongylonema sp., Heterakis spumosa, Hymenolepis diminuta, Hymenolepis nana, Mastophorus muris, Moniliformis moniliformis, Nippostrongylus brasiliensis, Strongyloides sp., Trichosomoides sp., and Trichuris sp.), and 6 protozoan parasites (Babesia sp., Trypanosoma lewisi, Plasmodium sp., Eimeria sp., Isospora sp., and Toxoplasma gondii) were isolated. Most prevalent helminths with relatively heavy mean intensity were Strongyloides sp. and Heterakis spumosa, while Plasmodium, Eimeria, and Isospora were the most prevalent protozoan parasites. Generally, intrinsic factors like sex and age had marginal influence on the rate and burden of infection in M. musculus and R. rattus. Although the infection rate and prevalence of zoonotic parasites were low, they were largely recovered in rodents from Ekpoma. This study elucidates the public health implication of the presence of zoonotic parasites in these small mammals.

• The Korean Journal of Ecology
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• 제12권2호
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• pp.123-132
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• 1989

주가성 쥐의 진드기 류에 대한 기생률은 4척조사지역 모두 2, 3월에는 낮고 6월부터 8월까지는 최고 기생률을 보였으며 채집된 진드기류는 3아목 5과 12속 21종이었고 숙주별로는 집쥐에서 19종, 곰쥐에서 11종이 채집되었다. 숙주선택성은 집쥐에서 10종으로 나타났으며 T-mites는 서울과 양수리지역이 다른 조사지역보다 많이 곳현했으며 L. palpale가 우점종으로 나타났다. 종다양도와 균등도와 지역별 비교는 양수리지역의 종구성이 다양하고 균등도는 인천지역이 가장 높았으며 계절별로 우점도를 보면 서울지역은 5월에, 성남지역은 3월에, 인천지역과 양수리지역은 년중 높게 나타났다. 지역별 유사도지수는 양수리와 서울지역이 0.8333으로 가장 높았다. 서울과 성남지역은 봄과 여름에, 인천지역은 여름과 가을에, 양수리지역은 겨울철에 다른 조사지역보다 진드리류가 많이 나타났으며 인천지역은 다른 3척 조사지역과는 달리 집쥐에서보다 곰쥐에서 더 많은 충체를 보유하고 있었다.

• The Korean Journal of Ecology
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• 제11권1호
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• pp.17-28
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• 1988

Five hundrad and eight rats were caught in Shiheung-dong and Mt. Kwan-ak from 1986 to 1987 in this survey. Ectoparasites were got from these rats and classified. The results were as follows: 9,191 mites (16 genera, 30 species), 408 fleas (4 genera, 4 species), and 521 lice (3 genera, 5 species) were observed in this survey. In the residential area, Rattus norvesicus(71.74%) was dominant species and in Mt. Kwan-ak Apodemus agrarius(93.62%). In these areas, the mites belonging to suborder Mesostigmata were dominant (Laelaps nuttli, 52.61%; Ornithonyssus bacoti, 36.05%). In Mt. Kwan-ak, family Frombiculidae belonging to suborder Prostigmata were dominant (Leptotromibidium orientalis, 31.04%; Leptotrombidium palpalis, 30.00%). In this way, it was discovered that the difference between the two regions in dominant species was noticeable. As for the hosts parasitized by mites, L. nuttalli in R. norvegicus (54.85%), L. nuttalli in R. rattus (32.90%), and L. orientalis in A. agrarius (31.27%) were dominant species, respectively. In the mites parasitizing on A. agrarius in each altitude, the species were more varied as the region was lower and the dominant species were more concentrated as it was higher.

• Animal Systematics, Evolution and Diversity
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• 제26권2호
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• pp.99-104
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• 2010

The subfamily Murinae is a very controversial group concerning their phylogenetic relationship. Previous studies could not resolve phylogeny among four genera Apodemus, Micromys, Mus and Rattus of the Muridae. In the present study, eight rodent species resident in South Korea were collected and phylogenetically analyzed based on sequence data of five mitochondrial and nuclear DNA regions: 12S rRNA, cytochrome b gene (cyt b), cytochrome oxidase II (COII), control region of mitochondrial DNA, and a thyroglobulin (Tg) of nuclear DNA. According to the phylogeny of the concatenated data, M. musculus separated early in Murinae (ML 100%; BA 1.00 pp) and the genus Rattus grouped with the harvest mouse, M. minutes; these were separated from the genus Apodemus with relatively strong support (ML 74%; BA 0.76 pp). The Siberian chipmunk population was also examined using the five genes to obtain better resolution. The phylogeny for Korean rodents determined using the 12S rRNA, cyt b, COII and control regions discriminated the Siberian chipmunk populations from Korea, Russia, and China.