• 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.
    • Parasites, Hosts and Diseases
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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.

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
    • Parasites, Hosts and Diseases
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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.

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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Landscape Planning for Shiwha Migratory Birds Habitat

  • Joo Shin-Ha;Ahn Se-Hyon
    • Journal of the Korean Institute of Landscape Architecture International Edition
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    • no.2
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    • pp.130-139
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    • 2004
  • Shiwha Lake is an excellent example of a body of water restored from a state of heavy pollution to a cleaner and more ecological state. This paper will explore techniques and methods available to landscape planning for the creation of new migratory birds habitats in Shiwha Lake. Because Shiwha lake is located adjacent to a new industrial site on reclaimed land, any planning effort aimed at restoring bird habitats must carefully consider the existing context. This plan had 3 goals; (1) to restore the coastal environment, (2) to create a habitat for migratory birds, and (3) to administer environmental education programs. To achieve these goals, several objectives were determined and planning criteria were proposed for topology, water environment(fresh, brackish and salt water swamps), zoning(for experts and general visitors), circulations, planting and mounding. The flora and fauna of the site was surveyed, and 5 alternatives were suggested and compared in several aspects. Planting species were carefully selected considering target birds and habitat requirements. In order to increase bio-diversity of the site, the plan proposed multi-staired mounds and extensive drainage systems. Bird watching facilities with natural materials, and the remote observing system using CCTV and the internet were some of the ecological techniques recommended by the plan. The bird watching trails are divided into two different zones for experts and general visitors.

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Exotic Seeds on the Feathers of Migratory Birds on a Stopover Island in Korea

  • Choi, Chang-Yong;Nam, Hyun-Young;Chae, Hee-Young
    • Journal of Ecology and Environment
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    • v.33 no.1
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    • pp.19-22
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    • 2010
  • Migratory birds, by crossing significant ecological barriers, carry and may subsequently introduce exotic seeds into new ecological zones during period of migration. The study of epizoochory, which includes seed dispersal by adhesion to bird feathers, has been relatively neglected compared to the study of seed dispersal by frugivores. To determine whether exotic seeds are being imported to stopover islands by migrating birds, and to estimate the quantity of seeds of exotic species being introduced, we examined migratory birds that were captured in mist nets for attached exotic plant diaspores in 2008 and 2009 on Hongdo Island, Korea. From a total of 3,947 birds examined, we found exotic seeds of Japanese Chaff Flowers (Achyranthes japonica) attached to three species of migratory birds (0.08%; Eurasian Bittern Botaurus stellaris, Swinhoe's Rail Coturnicops exquisitus and Oriental Turtle Dove Streptopelia orientalis). Despite the low occurrence of A. japonica seeds on the external parts of birds, the results suggest that migratory birds may be potential dispersing agents for A. japonica, a species that is currently threatening native ecosystems on many islands in Korea.

Study on the Wintering of Aegypius monachus, No. 243-1 Natural Monument Bird (천연기념물 제 243-1호 독수리(Aegypius monachus)의 월동실태에 관한 연구)

  • Jin, Seon Deok;Yu, Jae Pyoung;Paik, In Hwan;Han, Sung Woo;Kim, Seong Man;Han, Kab Soo;Kang, Tae Han;Kim, In Kyu;Yoo, Seung Hwa;Lee, Ki Sup;Kim, Soo Ho;Kim, Tae Jwa;Kim, Sung Hyun;Choi, Jong Soo;Hong, Kil Pyo;Cho, Hae Jin;Ping, Ki Chang;Kang, Jung Hoon;Park, Chi Young;Kim, Woo Yeol;Oh, Hong Shik;Paek, Woon Kee
    • Korean Journal of Heritage :History & Science
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    • v.42 no.1
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    • pp.62-70
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    • 2009
  • The study was conducted from Jan. 11 to Jan. 12 2008 on 17 areas which were the wintering area of Aegypius monachus and where the birds were observed. In the study, a total of 1,912 individuals were observed to winter in the areas, which was larger than any previous observation. The study found that 1,500 individuals wintered in the central region of Korea including Gyeonggido and Kangwondo, which accounted for 78.45%, and 412 individuals (21.55%) in the southern region such as Gyeongbuk, Gyeongnam, Jeannam and Jejudo (Island). Given the number of individuals wintering by region, Jangdan Peninsula (777 individuals), Cheorwon (488 individuals) and Sancheonggun(193 individuals) were mostly found. In comparison with the previous studies, 20-30% of the individuals have moved south since 2006. This movement might be attributed to the suspension of feeding campaigns, but the birds still crowded some specific areas.

Studies of Avian Species in the Islands of Korea based on the Theory of Island Biogeography (도서생물지리학 관점에서 본 우리나라 도서지역의 조류에 관한 연구)

  • Lee, Sang-Don
    • Journal of Environmental Impact Assessment
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    • v.19 no.6
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    • pp.547-552
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    • 2010
  • The theory of island biogeography has influenced strongly on the conservation and management issues of species diversity in the islands. The theory has not limited to islands in the ocean, but expanded to isolated and fragmented areas in the forests and urban. This study has a rare opportunity to explore the species diversity and abundance of birds in the islands of Korea. A total of 151 islands in the west and south areas in the Korean peninsula were examined. The number of species and the area of islands were highly significant (P<0.000) and the number of species and the distance from the mainland showed not so strong relationship. This indicated that bird species diversity has more influenced by the size of the islands not the distance. This can be from the study species of birds that can fly long distance, and also natural characteristics of migratory and resident status. Species-area curve showed that the z-value was 0.21 indicating the area and the bird species are strongly correlated. The long-term monitoring of bird species presence in the islands should be followed for a proper management plan.

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.

Evaluation of Agri-Environmental Performance of Convention on Biological Diversity Using Winter Paddy Field in Korea

  • Lee, Deog-Bae;Park, Sang-Hyun;Kang, Kee-Kyung;Ko, Byong-Gu;Park, Kwang-Lai;Seo, Myeong-Cheol;Kim, Jong-Gil
    • Korean Journal of Environmental Agriculture
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    • v.27 no.4
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    • pp.464-473
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    • 2008
  • Winter migratory birds gather in paddy rice fields to feed shed rice grains. The Korean Ministry of Environment has practiced a policy program Contract on Paddy Field Management (CPFM) during winter fallow since 2002. This program starts with a contract between local governments and farmers, and the government pays a differential subsidy to farmers who finish spreading rice straw, cultivating barley, letting the whole rice plant without harvest, and submerging paddy fields for winter migratory birds. As more local governments have operated CPFM program, the total area on the contract and subsidy budget has increased yearly since 2002. This program could have its stable position as a successful policy by giving profits to farmers. With the program extended, the population of winter migratory birds has been greatly. For the evaluation of environmental performance of a policy, we analyzed this CPFM program by introducing some indicators in the form of Driving Force-State-Response Framework. The indicators were composed of 3 categorized indicators; the area of paddy land contracted under this program as 'driving force' indicator, population of birds, the number of bird species and the amount of feces as 'state' indicators, and the size of monetary support, the number of farmers or local governments participating, and public perception as 'response' indicators. The contract area of paddy field under CPFM could be a good biodiversity indicator reflecting potential performance of this policy measure in the light of its linkage to the population of winter migratory birds. And the share of CPFM land of the whole agricultural land might also be used as a useful indicator of policy evaluation for improvement of wildlife diversity. The 'state' indicators such as population of birds and the number of bird species could be matched to 'driving force' indicator, but the total CPFM area of each site could not reflect the effect of areas under different management practices. However, the amount of bird feces could reflect differences in environmental performance with management practices as 'state' indicators. The development of indicators indicating 'response' such as farmers' behavior, public perception, and policy makers' willingness is also needed to support a successful implementation and improvement of this policy measure with the development of 'performance' indicators integrating all these indicators.