• 한국동물학회:뉴스레터
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• 제12권2호
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• pp.125.1-125
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• 1995

No Abstract, See Full Text

• 한국동물학회:뉴스레터
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• 제12권2호
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• pp.125.2-125
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• 1995

No Abstract, See Full Text

• 한국동물학회:학술대회논문집
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• 한국동물학회 1995년도 한국생물과학협회 학술발표대회
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• pp.301.1-301
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• 1995

No Abstract, See Full Text

• 한국동물학회:학술대회논문집
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• 한국동물학회 1995년도 한국생물과학협회 학술발표대회
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• pp.301.2-301
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• 1995

No Abstract, See Full Text

• Ocean and Polar Research
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• 제36권1호
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• pp.49-57
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• 2014

The seabird plays an important role as one of the indicator species for the status of and changes within marine ecosystems. Therefore, the conservation of seabirds and their habitats is important for maintaining the structure and function of marine ecosystems. Biological invasions affect most ecosystems on oceanic islands. In particular, Rattus spp. is the invasive species with the greatest impact on the seabird population. Introduced predators, like rats, severely affect seabirds and endanger them worldwide. The breeding population of Streaked Shearwaters Calonectris leucomelas in Sasu Island is one of biggest seabird colonies in Korea, and the Norway Rat Rattus norvegicus is known as an alien predator in this island. In this study we investigated rates of burrow occupancy and breeding success of Streaked Shearwaters for 7 years, and the impact of Norway Rats on the breeding success of Streaked Shearwaters breeding in Sasu Island for 4 years. Our results show that the percentage of breeding burrows decreased according to breeding stage during several years in the monitoring period, and that predation by the Norway Rat was the main cause in hatching failures. Consequently, although our results indicate that their breeding population is not likely to decline, Norway Rats have been affecting the breeding status of Streaked Shearwaters on Sasu Island during the last decade.

• 한국응용곤충학회지
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• 제13권4호
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• pp.251-253
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• 1974

한국에 있어서 쥐로 인한 곡물의 피해는 연간 곡물총생산량의 $20\%$에 달한다. 우리나라의 쥐종류는 12종으로 알려져 있으며 그중 집쥐<시궁 쥐>, 지붕쥐<곰쥐>, 생쥐 및 등줄쥐가 대표적이다. 1962년 이래 구서사업은 정부의 주관하에 실시되어 왔다. 살서제로서는 당초 항혈액의고제를 사용하였으나 예산의 제약 때문에 기대하는 결과를 얻지 못하였고 그후 1970년이후 인화아연제로 대체하여 계속사용하였던 결과 기피성으로 인하여 사업성과는 매년 떨어지고 있는 현실이다. 필자는 이러한 문제를 해결하기 위하여 $\ulcorner$파라핀옥스$\lrcorner$를 사용하여 인산아연제의 입자를 피복하여 본제의 독특한 맛을 제거하고 또한 약제의 분해를 지연시키므로서 호식성을 증가시켜 높이는데 성공하였다. 앞으로 이러한 방법이 구서사업에 도입된다면 약효를 상당화 증가시켜줄 것으로 사료된다. 그러나 보다 근본적인 구서대책을 위하여는 본 사업에 대한 국민들의 보다 많은 관심과 이에 대한 철저한 연구, 훈련 및 충분한 자금의 뒷받침이 수반되어야 할 것이다.

• 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.

• Proceedings of the National Institute of Ecology of the Republic of Korea
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• 제3권3호
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• pp.165-171
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• 2022

The Chinese crested tern (Thalasseus bersteini) is one of the most globally endangered species, listed as "Critically Endangered (CE)" on the IUCN Red List, with only approximately 30-49 individuals surviving in the wild. Chinese crested terns were discovered to breed in South Korea for the first time in 2016 while conducting a census on uninhabited islands. The Ministry of Environment has declared the breeding habitat of the Chinese crested terns as "Specified Island" to protect this CE species. However, brown rats (Rattus norvegicus) inhabiting the breeding grounds of the Chinese crested terns and Black-tailed gulls may potentially pose a threat to the breeding of these avian species. Therefore, we conducted a study on the feeding behavior of brown rats involving stable isotope analysis to determine their food sources. Fecal analysis showed that brown rats mainly fed on plants, whereas they scarcely fed on animals, such as insects. In addition, the stable isotope analysis showed that the δ¹³C values of brown rats, insects, and Indian goosegrasses were approximately -16 to -11‰, whereas the δ¹³C value of Chinese crested terns that obtained their food from the marine ecosystem was approximately -22 to -18‰. Hence, we conclude that the source of carbon for brown rats on this island is the terrestrial ecosystem. We ruled out the possibility of any direct prey-predator interaction between the brown rat and the Chinese crested tern or Black-tailed gull.

• 대한바이러스학회지
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• 제28권2호
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• pp.157-164
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• 1998

Various hantaviruses were isolated from HFRS patients and various rodent species, in many parts of the world. Bandicotas were captured at Yogyakarta, east region of Sumatura island, Indonesia; and 4 rodents species including Bandicotas were captured at Chiang Rai in Thailand during 1995. Sera were collected from captured bandicotas and other rodent spicies were screened for antibody test against Hantaan (HTN), Seoul (SEO), Puumala (PUU) and Sin Nombre (SN) viruses by immunofluoresence antibody assay (IFA). Hantavirus antigen in lung tissues were tested by IFA. Among 55 captured Bandicota indica in Indonesia, 14 (25.5%) were antibody positive against HTN, SEO, PUU and SN virus. Hantavirus antigen were detected from 5 (9.0%) out of 55 lungs tested. Among 34 captured Bandicota indica in Thailand, 9 (26.5%) were antibody positive against HTN, SEO, PUU and SN virus. Among 34 lungs tissues of Bandicota indica examined, 3 (8.8%) were antigen positive. In other rodent species, antibody positive against Hantaviruses of Rattus rattus, Rattus losea and Mus cervicolor were 4/62 (6.5%), 5/25 (20%), 1/1 (100%), respectively. But no one has antigen in their lung tissues. Antigen positive lungs suspension were inoculated into vero E6 cells for virus isolation and 4 viruses were isolated from Indonesian Badicota and 3 viruses from Thailand.

• 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.