• Title/Summary/Keyword: Migratory bird

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Ornithodoros sawaii (Ixodida: Argasidae) Larvae Collected from Hydrobates monorhis on Sogugul and Gaerin Islands, Jeollanam-do (Province), Republic of Korea

  • Kim, Heung-Chul;Choi, Chang-Yong;Kwon, Young-Soo;Yun, Seok-Min;Lee, Won-Ja;Chong, Sung-Tae;Robbins, Richard G.;Klein, Terry A.
    • The Korean Journal of Parasitology
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    • v.54 no.2
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    • pp.233-238
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    • 2016
  • The 65th Medical Brigade and Public Health Command District-Korea, in collaboration with the Migratory Bird Research Center, National Park Research Institute, conducted migratory bird tick surveillance at Sogugul and Gaerin Islands (small rocky bird nesting sites), Jeollanam-do (Province), Republic of Korea (ROK), on 30 July and 1 August 2009. Breeding seabirds captured by hands in their nesting burrows were banded, identified to species, and carefully examined for ticks during the nesting season. A total of 9 Ornithodoros sawaii larvae were removed from 4 adult Hydrobates monorhis (Swinhoe's storm petrel). The identification of the larvae of O. sawaii collected from migratory seabirds were molecularly confirmed using mitochondrial 16S rDNA primer sets.

Economic Impacts of Regional Festivities : A Case of Seosan Migratory Bird Festival (지역축제의 경제적 파급효과 : 2006 서산천수만 세계철새 기행전의 경우)

  • Kim, Sang-Ho
    • 열린충남
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    • s.39
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    • pp.126-143
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    • 2007
  • This study evaluates the economic impacts of regional festivals and cultural events by utilizing regional input-output models of Seosan and Chungnam, which are derived by using a location-quotient approach. Tourism industry has modest forward and backward linkages with other industries, but its impacts on regional income and employment are much larger than other industries including manufacturing industry. Strong impacts on income and employment seem to provide rational for promoting tourism industry in Seosan and Chungnam. The Seosan Migratory Bird Festival increased city outputs approximately by 3929 million Won, increased employment by 56 people, and increased total income of the province by 774 million Won. All of the economic impacts were mostly concentrated in service related industries,

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Species composition, seasonal prevalence and flavivirus occurrence of mosquitoes in Daegu and Gunwi, South Korea during the period of 2015-2016

  • KIM, Da Yeong;CHOI, Moon Bo;LEE, Wook-Gyo;KWON, Ohseok
    • Entomological Research
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    • v.48 no.6
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    • pp.522-532
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    • 2018
  • As the vector-borne diseases rapidly increased due to climate change, we investigated the incidence of flavivirus occurrence among female mosquito species in urban and rural study sites in Daegu and Gunwi, South Korea using Realtime PCR. We collected more individuals and more species of mosquito in 2016 than in 2015. In 2015, we recorded a total of 22,033 mosquitoes (Trap Index, 224.8) representing 10 species from 5 genera, whereas in 2016, a total of 27,137 mosquitoes (Trap Index, 278.7) representing 13 species from 6 genera were collected. The number of mosquitoes in 2016 was higher in all study sites, except in the migratory bird habitats where the number decreased. Of the 14 species collected over the two years, Aedes vexans nipponii and Anopheles spp. were dominant in the cowsheds in rural farmland; Culex pipiens complex, in urban residential areas; and, Anopheles spp. and Cu. pipiens complex in migratory bird habitats caught in a black light trap. Cu. pipiens complex and Ae. albopictus in urban parks and Ae. albopictus and Armigeres subalbatus in migratory bird habitats were the dominant species caught in BG-sentinel traps. We found that the number of mosquitoes was highest during July-September. We analyzed 1,725 pools to detect flavivirus, where Chaoyang virus was detected among Ae. vexans niponii collected from cowsheds in rural farmland in 2016. The increased number of mosquitoes recorded in 2016 was mainly due to increased temperatures in the study areas, and reflected the change in study sites.

Seasonal Distribution of Mosquitoes According to Habitat Environment (2016-2018) (서식환경에 따른 모기 분포조사(2016-2018))

  • Park, Geun-Ho;Kim, Sung Il;Cho, Sung Woo;Cho, Sun-Ran;Lee, Seung-Ju;Kim, Hyun Kyung;Koo, Hyun-Na;Lee, Wook-Gyo;Cho, Shin-Hyeong;Kim, Gil-Hah
    • Korean journal of applied entomology
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    • v.57 no.4
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    • pp.381-392
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    • 2018
  • The distribution of mosquitoes collected in the Cheongju area from 2016-2018 were compared. The collection sites were established at a residential area, migratory bird sanctuary, and cowshed using black light (BL) and BG sentinel traps. Culex pipiens was the most collected species in the residential area, and Aedes vexans was the most collected species in the migratory bird sanctuary and cowshed in all years. The BG trap collected more individuals than did the BL trap in the residential area and migratory bird sanctuary. In total, 22,679 (10 species) mosquitoes were collected in 2016, and 6,502 (8 species) and 6,803 (9 species) mosquitoes were collected in 2017 and 2018, accounting for 3.49- and 3.33-fold decreases, respectively. The relationship between meteorological conditions and mosquito density, according to various variables, was not significant different. The Chaoyang virus was found in Aedes vexans and Culex pipiens collected at the cowshed in 2016 and 2018, respectively. Based on the results of this study, it is considered that continuous surveillance of mosquitoes should be performed for controlling mosquito populations and mediating diseases spread by this vector.

Introduction of Non-Native Ticks Collected from Fresh Migratory Bird Carcasses on a Stopover Island in the Republic of Korea

  • Choi, Chang-Yong;Kim, Heung-Chul;Klein, Terry A.;Nam, Hyun-Young;Bing, Gi-Chang
    • The Korean Journal of Parasitology
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    • v.60 no.1
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    • pp.57-63
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    • 2022
  • When free-ranging birds are accidentally killed or die, there may be greater potential for their associated ticks to detach, seek alternate hosts, and become established. We examined 711 carcasses of 95 avian species for ticks at a stopover island of migratory birds in the Republic of Korea where only Ixodes nipponensis and I. persulcatus were previously reported from local mammals and vegetation. A total of 16 ticks, I. turdus and Haemaphysalis flava, were collected from 8 fresh carcasses belonging to 5 avian species. Despite their known abundance on migratory birds and mainland Korea, these species had not colonized the isolated insular ecosystem possibly due to the low abundance and diversity of local hosts. The results imply that increasing human impact, such as the anthropogenic mortality of migratory birds and the introduction of non-native mammalian hosts, will increase the potential invasion and colonization risk of ticks. This finding also suggests that tick surveillance consisting of fresh carcasses of dead migratory birds may provide additional information, often ignored in surveillance of ticks on live birds, for the potential introduction of non-native ticks and associated pathogens affecting animal and human health.

Comparison of White-naped Crane Habitat Use Pattern with Land-coverage Map in the Han-River Estuary and DMZ (한강하구에 도래하는 재두루미(Grus vipio) 서식지이용과 토지피복도 상관관계 연구)

  • Kim, Sung-Ok;Lee, Sang-Don
    • Journal of Environmental Impact Assessment
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    • v.17 no.4
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    • pp.255-262
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    • 2008
  • For the Han-river estuary and DMZ where white-naped crane (Grus vipio; endangered migratory bird) stopover or spend winter, the habitat composition and the habitat use pattern of white-naped crane were analyzed with the position data obtained by the satellite tracking method. By the use of geographic information system (GIS), the percent composition of seven habitat categories of white naped-crane data points (n=228) was analyzed. The chi-square test showed that the white-naped crane habitat use pattern was significantly different (p<0.05) from that of random points (n=228). It means that white-naped crane select and use particular habitat area in the Han-river estuary and DMZ.

Cuclotogaster heterographus and Anaticola anseris(Mallophagh; Ischnocera): Collection fram Ciconia boyciana, Description and Observation with Scanning Electron Microscopy (황새의 이(蝨) Cuclotogaster heterographus와 Anaticola anseris의 주사전자현미경적관찰(走査電子顯微鏡的觀察))

  • Kang, Yung-bai;Byun, Si-yul
    • Korean Journal of Veterinary Research
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    • v.24 no.2
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    • pp.227-236
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    • 1984
  • A migratory bird, the white stork, Ciconia boyciana was captured from a pond in the Cheju Island on the 18th of December in 1982. The morphological characteristics were described as seen in the binocular stereoscopic microscope and the further fine structures were observed by means of the scanning electron microscope (Model; ISI-DS-130). The bird was examined for the ectoparasites at the Cheju Provincial Veterinary Research Laboratory. Two kinds of specimens were collected from the head and body feathers. The specimens were sent to the Institute of Veterinary Research in Anyang for the classification and identification. The specimens preserved in 70% ethyl alcohol were examined and identified as the fowl head-louse, Cuclotogaster heterographus and the slender goose-louse, Anaticola anseris both classified into Family Philopteridae, Ischnocera, Order Mallophaga.

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Effects of Landscape Ecological Characteristics on Bird Appearance - Focused on The Nakdong River Estuary - (경관생태학적 특성이 조류출현에 미치는 영향 - 낙동강 하구를 대상으로 -)

  • Kim, Bum-soo;Yeo, Unsang;Oh, Dongha;Sung, Kijune
    • Journal of Environmental Impact Assessment
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    • v.24 no.3
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    • pp.287-299
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    • 2015
  • If the Nakdong River estuary is to be sustainable, land use management practices need to consider bird habitat requirements, especially given that the area serves as an important migratory bird sanctuary. In this study, bird habitats found in the Nakdong River estuary were classified into 11 different types including Phragmites australiss, mud flat, farmland, open surface in freshwater, sand bar, riparian forest, Scirpus planiculmis, waterway, construction, grasslands, and open surface in sea or brackish water. Taking into consideration the regional characteristics, habitat properties, and landscape indices, a total of 12 study sites were analyzed. Mud flat, construction, farmland, and P. australis account for 80% of the total land area. The high area ratio of construction and farmland to other types of habitat revealed a high amount of historical human activity and intervention in the area. Both patch numbers as well as patch density were high in West Nakdong River, Samrak Waterfront, Maekdo River, and Daejeo Floodgate, with these areas showing the greatest fragmentation as well. Total numbers of species and individuals had a positive correlation with the area and the number of habitat types. Findings suggest that protecting the habitat area, especially in S. planiculmis, is the most important factor for bird habitat management and that future development could result in habitat loss, having a profoundly adverse impact on bird populations. Therefore, it is important that the total area should be carefully protected by land use regulations in order to ensure that the Nakdong River estuary maintains its functional integrity as a migratory bird sanctuary.

A Qualitative Study on Difficulties of Teachers and Young Children in the Operation of the Full day Public Kindergarten Classes Regrouped in the Afternoon (공립유치원의 오후 재편성 종일반 운영에 따른 교사와 유아의 어려움에 대한 질적 연구)

  • Seo, Hyun;Lee, Seung-Eun
    • Korean Journal of Human Ecology
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    • v.17 no.3
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    • pp.399-411
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    • 2008
  • The study purposes to survey teacher's and child's difficulties which full day classes of public kindergarten regrouped in the afternoon time are having. The subjects are 4 full day class pre-service kindergarten teachers and 8 full-day class children in G Metropolitan City and in J Province. Data were collected through in depth interviews and participatory observation. According to the results, the variables of teachers' difficulties in managing full day classes regrouped in the afternoon time are "living as an outsider without a sense of belonging", "living as a false teacher rather than a real class teacher", and "living as a teacher giving specialty and aptitude education". The variables of children's difficulties are "moving like a migratory bird", "watching the clock and the door", and "being unable to concentrate". The study is expected to be useful as one of basic findings for desirable management of kindergarten full day classes regrouped in the afternoon time.