• Title/Summary/Keyword: Roe Deer Population

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제주도 한라산 노루 적정 개체수에 관한 시스템 다이내믹스 모델링 (System Dynamics Modeling for Management of Roe Deer Population in Jejudo)

  • 김도훈;홍영교
    • 한국시스템다이내믹스연구
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    • 제9권2호
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    • pp.45-75
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    • 2008
  • Roe Deer has been preserved for 25 years by the local government and the residents in Jejudo. However, the damage and harm of crops of the residents by Roe Deer are increasing as well. So, some experts worry about the unstability of ecosystem in Mt. Halla where Roe Deer live. This paper discuss the suitable number of Roe Deer population in Jejudo to protect the ecosystem in Mt. Halla and minimize the damage of residents in Jejudo. With system dynamics modeling and simulation, the population of Roe Deer at present is estimated about 2,300. However, the population of Roe Deer stays 'unstable balance'. So, a little change such as poaching and the increase of wild dogs may make the balance of ecosystem broken. According to the result of policy test simulation, we should keep on watching the poaching and maintain the number of wild dogs at about 100, so that the ecosystem in Jejudo can be stable. To reduce the moving of Roe Deer to low region, moreover, we should protect the Mt. Halla which is Roe Deer's habitat. If we are indifferent about these efforts, the ecosystem of Roe Deer in Mt. Halla will be ruined.

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제주도 노루의 개체수 관리를 위한 확장적 피식-포식모형의 적용에 관한 연구 (Application of an Augmented Predator-Prey Model to the Population Dynamics of Roe Deer in Jeju)

  • 전대욱;김도훈
    • 한국시스템다이내믹스연구
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    • 제12권2호
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    • pp.95-126
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    • 2011
  • This paper aims at developing a System Dynamics model with an augmented predator-prey interaction structure to deal with the population management of roe deer in Jeju, Korea. Although people still regard the creature as one of the important tourist attractions, there has been much debate on the issues of the appropriateness of the population size of roe deers because they have been stigmatized as crop damagers, and roadkill/poaching victims due to their natural habit to move around from the top mountain to the lowland of the island. The model is therefore to incorporate these migrating and grazing behaviors into an augmented Lotka-Volterra model coupling roe deer population in both parts of the island to that of predators and preys of the species. The authors also provide a comprehensive set of dynamic hypotheses and relevant CLD/SFD to understand the population dynamics of roe deer and co-evolving species and perform the steady-state analysis of the proposed equation system to verify the model behavior of the numerical example lastly presented in this paper.

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제주 노루와 진드기에서 타일레리아 감염 조사 (Investigation of Theileria sp. from Ticks and Roe Deer (Capreolus pygargus) in Jeju Island)

  • 문경하;이상;최창용;김소연;강창완;이경갑;윤영민
    • 한국임상수의학회지
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    • 제31권1호
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    • pp.6-10
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    • 2014
  • 제주도에 서식하는 노루는 육지부 다른 종으로 대부분이 진드기에 심하게 감염되어 있다. 제주노루가 진드기 매개질병에 감염 및 다른 야생동물이나 가축에게 질병을 전파할 수 있다. 이에 본 연구에서는 제주야생동물구조센에서 구조 및 치료되는 제주노루 23마리의 혈액과 진드기를 대상으로 진드기 종을 동정하고 주혈원충 감염을 확인하였다. 구조된 노루의 대부분은 심하게 진드기에 감염되었고 모두가 작은소참진드기(100%)였다. 감염노루 혈액과 진드기를 대상으로 주혈원충에 대한 PCR, RFLP 및 염기서열 분석한 결과 혈액시료 모두(100%)에서 Theileria luwenshuni로 확인되었으며, 진드기에서는 23개군중 8개군(34.8%)에서 확인되었다. 제주 노루 감염 진드기는 주로 작은소참진드기며, 이들이 T. luwenshuni 매개함을 확인하였다. 그러나 감염에 따른 혈액 및 혈청학적 검사에서 정상소견과 유의적 차이를 보이지 않았다. 앞으로 사람이나 가축으로 질병을 전파할 수 있는 진드기 매개질병 보균숙주로서 가능성이 있음으로 지속적인 조사 관찰이 필요하다.

The influence of individual factors on the number of reindeer (Cervidae) in the Baikal region

  • Vashukevich, Yury Evgenjevich;Zhovtyuk, Pavel Ivanovich;Shvetsova, Svetlana Viktorovna;Bogdanov, Alexandr Sergeevich
    • Journal of Species Research
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    • 제3권1호
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    • pp.35-38
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    • 2014
  • The article considers the influence of hunting (legitimate and uncontrolled) on the population of the Siberian roe deer, musk deer, elk, red and northern deer in Pribaikalje. The data on the forms and methods of hunting, the dynamics of the number of animals and the results of their production are given. For comparison, the acts of such a limiting factor as predators are specified. Reasons for the low number of wild ungulates are determined and main problems are formulated.