• 제목/요약/키워드: mammals and reptiles

검색결과 35건 처리시간 0.023초

동물원 동물에서의 Latex응집반응에 의한 Toxoplasmu항체가 (Toxoplasma Antibodies by Indirect Latex Agglutination Tests in Zoo Animals)

  • 최원영;유재을
    • Parasites, Hosts and Diseases
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    • 제25권1호
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    • pp.13-23
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    • 1987
  • 서울대공원에서 사육중인 각종동물을 대상으로 Toxoplasma의 보유숙주로서의 가능성을 간접 Latex 응집반응을 이용하여 항체가를 검토하였다. 포유류, 조류 및 파충류중 가능한 범위내에서 PKU여과지에 혈액을 흡착시킨 후 건조시켜서 조사하였다. 131개체의 포유류에서 20개체 (15.3%), 조류에서는 75개체에서 2개체 (2.7%)가 Toxoplasma 양성 항체가를 가진 것으로 나타났으며, 종별로는 68종의 포유류에서 15종(22. %), 36종의 조류에서 2종(5.6%)이었으며, 조사한 10개체 (7종)의 파충류는 모두 음성으로 나타났다. 포유류에서는 캉가루목의 6개체에서 2개체 (3종중 1종), 원숭이 목의 15개체중 1개체 (11종증 1종), 박쥐목의 1개체 (1종), 개목의 13개체중 6개체 (10종중 5종) 말목의 12개체중 1개체 (3종중 1종), 소목의 80개체 중 9개체 (38종중 6종)가 양성으로 나타났으며, 쥐목과 고래 목에서는 음성이었다. 조류에서는 닭목에서 1개체, 앵무목에서 1개체만이 양성이었다. 항체가별로는 포유류에서 1 : 64가 9개체, 1 : 32가 6개체, 1 : 128이 3개체, 1 256이 2개체로 나타났으며, 조류에서의 2 양성 개체는 모두 1 : 64의 항체가를 보였다.

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Flehmen Induction with Goats by the Urine of Twenty Animal Species

  • Kang, M.S.;Sasada, H.;Kanomata, K.;Fukuoka, T.;Masaki, J.
    • 한국가축번식학회지
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    • 제12권1호
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    • pp.48-50
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    • 1988
  • Flehmen is well-known response which often occurs during the process of courtship in most mammals. Recent studies with domestic ruminants suggest that the flehmen may be involved in the mechanism of transferring some pheromonal substances to vomeronasal organ. Thus, variety of its significancehas been supposed, besides that male animals may use it for estrus detection. In this experiment, 8 male, 3 female and3 castrated goats of Saanen and its hybrid were used to ascertain whether urine from alien species can induce flehmen as that from same species. Urine was collected from twenty species consisting of 15 mammals, 3 birds and 2 reptiles and frozen until use. Mostly urine was sprayed to the nose of goats, but some coagulated ones were sniffed. Duration of flehmen was scored to four ranks as 0, 1-19, 20-39 and >40 sec. Each urine sample induced the response in any goats. However, much difference in the in tensity was found between the samples and according to the reproductive state of the receptor goats. Although individual difference was manifest, male goats generally showed more intense response than did female. Castrated goats showed the intermediate pattern. Administration of antiandrogen to the male goat tended to reduce the response. The results indicate that flehmen in the goat could occur for the urine of alien species as that of same species and the androgen may be one of the factors regulating the response.

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Trichinosis Caused by Ingestion of Raw Soft-Shelled Turtle Meat in Korea

  • Lee, Sang-Rok;Yoo, Sang-Hoon;Kim, Hyun-Seon;Lee, Seung-Ha;Seo, Min
    • Parasites, Hosts and Diseases
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    • 제51권2호
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    • pp.219-221
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    • 2013
  • Reptiles, unlike mammals, have been considered to be unsuitable hosts of Trichinella spp., though larvae have been detected in their muscles and human outbreaks related to their consumption have, in fact, occurred. Herein we report 2 Korean cases of trichinosis, possibly transmitted via consumption of reptile meat. Both patients suffered from myalgia, headache, and facial edema. Laboratory examinations revealed leukocytosis with eosinophilia (54% and 39%, respectively) and elevated creatinine phosphokinase. ELISA was performed under the suspicion of trichinosis, showing positivity at the 29th and 60th day post-infection. Since they had consumed raw soft-shelled turtle meat, turtle was strongly suggested to be an infection source of trichinosis in Korea next to the wild boar and badger.

주교천 천변저류지의 사후 모니터링 (Monitoring of Detention Basin after Restoration at Joogyo Creek)

  • 김기흥;이형래;김철수
    • 한국환경복원기술학회지
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    • 제14권3호
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    • pp.177-194
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    • 2011
  • In order to assess ecologically for the restored detention basin in Joogyo creek, this study carried out a monitoring on the ecosystem of the detention basin. The study site was a small detention basin with an area $6,350m^2$, which had been established in March, 2004. The monitoring started in August and November, 2007. Terrestrial, riparian, and aquatic plants species have increased about 2 times at detention basin compared to that of streamside. Mammals, birds, reptiles, amphibians, aquatic insects and crustaceans were found more in species at detention basin, and especially there were a lot of more fish species. From the results, it seemed that various terrestrial, riparian, and aquatic ecosystem were made in the small detention basin.

제천시 솔방죽 습지생태공원 조성 전과 후의 동물상 비교 (The Faunae before and after Creating the Solbangjuk Wetland Ecological Park Located in Jecheon-City were Compared)

  • 김도성;강종현;이세재;임학상;김나래
    • 한국조경학회지
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    • 제42권3호
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    • pp.35-49
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    • 2014
  • 본 연구는 제천시에 위치한 솔방죽 습지생태공원의 조성 전과 후의 동물상을 비교하였다. 그 결과, 생태공원 조성에 따른 동물상의 변화는 야생성이 강한 종들이 감소하고, 일반종의 비율이 높아지는 것으로 나타났다. 또한 포유류, 양서 파충류와 같이 이동에 제약이 있는 종들은 생태공원 조성으로 늘어난 탐방객들에 의해서 점차 감소하고 있다. 그리고 어류는 공원 조성과정에서 저수지 물을 방류하고 작업하여 집단 폐사하는 사례가 있어 이에 대한 보완 작업이 필요하다. 곤충은 공원 조성 후에 조성된 화단의 꽃에서 꿀을 먹는 곤충과 습지 식물의 생육을 위하여 안정된 수계를 유지하고 있어, 이곳에서 서식하는 수서 곤충은 늘어난 것으로 나타났다. 이번 조사 결과, 주거지역과 인접한 농업용 저수지는 크기가 작은 경우가 많아 생태공원 조성시 이곳에서 생활하는 야생동물들에 대한 서식 공간 확보가 필요한 것으로 보인다. 또한 야생동물 서식처를 위하여 방문객들의 탐방로와 시설물 위치를 조정하여 저수지 일부 지역이 자연 상태로 유지할 수 있도록 하는 것이 고려되어야 한다.

Current status of alert alien species management for the establishment of proactive management systems in Korea

  • Son, Seung Hun;Jo, A-Ram;Kim, Dong Eon
    • Journal of Ecology and Environment
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    • 제45권4호
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    • pp.237-254
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    • 2021
  • Background: Some of the introduced alien species introduced settle, multiply, and spread to become invasive alien species (IAS) that threaten biodiversity. To prevent this, Korea and other countries legally designate and manage alien species that pose a risk to the environment. Moreover, 2160 alien species have been introduced in South Korea, of which 1826 animals and 334 plants are designated. The inflow of IAS can have negative effects such as ecosystem disturbance, habitat destruction, economic damage, and health damage to humans. To prevent damage caused by the inflow of IAS in advance, species that could potentially pose a risk to the environment if introduced in South Korea were designated as alert alien species (AAS). Results: The designation criteria were in accordance with the "Act on the Conservation and Use of Biological Diversity" and the "Regulations on the Ecological Risk Assessment of AAS and IAS" by the National Institute of Ecology. The analysis result of risk and damage cases indicated that mammals affect predation, competition, human economic activity, virus infection, and parasite infection. Birds have been demonstrated to affect predation, competition, human economic activity, and health. It was indicated that plants intrude on the ecosystem by competing with native species with their high-population density and capacity to multiply and cause allergic inducement. Interestingly, 300 species, including 25 mammals, 7 birds, 84 fishes, 28 amphibians, 22 reptiles, 1 insect, 32 spiders, 1 mollusk, 1 arthropod, and 99 plants, are included in the list of AAS. Conclusions: AAS designation plays a role in preventing the reduction of biodiversity by IAS in South Korea and preserving native species. Moreover, it is determined to provide considerable economic benefits by preventing socio-economic losses and ecological damage.

한·중 양국 동물의 상징적 의미의 비교연구 (A comparative study: symbolic meaning of animals between Korea and China)

  • 박민수
    • 비교문화연구
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    • 제21권
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    • pp.271-288
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    • 2010
  • In their everyday life, people form social phenomena and relations through the shapes and habits of animals. Therefore, animals contain the idea of the way of life of certain nations, spiritual and cultural feelings, and the symbolic meaning which can be recognized between the members of the unique nation. The symbolism of animals varies depending on different nations, because the adages are the essence of the language including their culture, thought, custom, and life. Examining their own adages can be one of the ways to find out what the animals symbolize in different nations. Another reason is that they are the dictionaries, reflecting their own way of thinking and traditional values, so to speak. The research shows that, between Korean and Chinese adages, it is in a similar frequency, using materials such as mammals, birds, fishes, reptiles, and insects. The adages are focused on the 12 animals which is familiar to both nations, a rat, an ox, a tiger, a rabbit, a dragon, a snake, a horse, a lamb, a monkey, a rooster, a dog and a boar. We compared the symbolism, the surface meanings in adages, and the figurative meanings of these animals in Korea and China. As a result, it is found that some are almost the same in usage. However, some are totally different such as expressions related to the animals, the cultural differences and clear understanding. It is necessary to do comparative researches in a detailed and various way by studying the issues derived from verbalism.

도림천 수변지역 조성을 위한 생태적 관리방안 및 하천환경 관리방안에 관한 연구 (Studies on the Ecological Management and Stream Environment in Dorim Stream for Establishing Eco-wetland Parks)

  • 이상돈;김석철
    • 한국습지학회지
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    • 제10권3호
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    • pp.133-139
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    • 2008
  • 도심하천은 도심개발과 오염으로 인해 기능이 점차 상실되고 있다. 본 연구는 도림천의 출현 동물상 및 식물상을 파악하여 도심하천의 건강성을 평가하는 지표종을 발굴하고, 습지보전지역의 가능성을 위한 방안을 토론하였다. 도림천에서 안양천에 이르는 구간에 총 113종의 식물종, 포유류 9종, 조류 23종, 양서류 4종, 파츙류 2종과 어류 2종이 관찰되었다. 육상곤충은 71종이 관찰되었으며, 습지식생은 매우 다양하며 총 4개의 권역으로 나누었으며, 도심하천의 특징을 나타내는 수변지역 및 습지식물권역(습지식물권역, 반습지식물권역, 습지주변초지 지역, 습지주변교목지역)에 대한 관리방안이 도출되었다.

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도시의 개발 사업에 따른 생물다양성 변화 추세 분석 - 환경영향평가의 육상 동물종을 중심으로 - (Analysis of biodiversity change trend on urban development project - Focusing on terrestrial species in Environmental Impact Assessment -)

  • 김은섭;이동근;전윤호;최지영;김신우;황혜미;김다슬;문현빈;배지호
    • 한국환경복원기술학회지
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    • 제26권6호
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    • pp.21-32
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    • 2023
  • The Environmental Impact Assessment (EIA) plays a pivotal role in predicting the potential environmental impacts of proposed developments and planning appropriate mitigation measures to minimize effects on species. However, as concerns over biodiversity loss rise, there's ongoing debate about the efficacy of these mitigation plans. In this study, we utilized data from EIAs and post-environmental impact surveys to understand the trends in biodiversity during construction and operation phases. By examining 30 urban development projects, we categorized species richness indices of mammals, birds, amphibians, and reptiles into pre-construction, during construction, and post-construction operational stages. The biodiversity trends were analyzed based on the rate of change in these indices. The results revealed three distinct biodiversity change patterns: (A) An initial increase in biodiversity indices post-development, followed by a gradual decline over time; (B) a sustained increase in biodiversity as a result of mitigation measures; and (C) a continuous decline in biodiversity post-development. Furthermore, all species exhibited a higher rate of biodiversity decline during the construction phase compared to the operational phase, with mammals showing the most significant rate of change. Notably, the biodiversity change rate during operation was generally lower than during construction. In particular, mammals seemed to be most influenced by mitigation measures, displaying the smallest rate of change. This study provides empirical evidence on the efficacy of mitigation measures and deliberates on ways to enhance their effectiveness in minimizing the adverse impacts of urban development on biodiversity. These findings can serve as foundational data for addressing terrestrial biodiversity reduction.

Maxent 모형을 이용한 서식지 잠재력 평가 - 하천으로부터의 거리, 하천의 차수, 토지이용을 중심으로- (Habitat Potential Evaluation Using Maxent Model - Focused on Riparian Distance, Stream Order and Land Use -)

  • 이동근;김호걸
    • 한국환경복원기술학회지
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    • 제13권6호
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    • pp.161-172
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    • 2010
  • As the interest on biodiversity has increased around the world, researches about evaluating potential for habitat are also increasing to find and comprehend the valuable habitats. This study focus on comprehending the significance of stream in evaluating habitat's potential. The purpose of this study is to evaluate habitat potential with applying stream as a main variable, and to comprehend the relationship between the variables and habitat potential. Basin is a unit that has hydrological properties and dynamic interaction with ecosystem. Especially, biodiversity and suitability of habitat in basin area has direct correlation with stream. Existing studies also are proposing for habitat potential evaluation in basin unit, they applied forest, slope and road as main variables. Despite stream is considered the most important factor in basin area, researchers haven't applied stream as a main variable. Therefore, in this study, three variables that can demonstrate hydrological properties are selected, which are, riparian distance, stream order and land use disturbance, and evaluate habitat potential. Habitat potential is analyzed by using Maxent (Maximum entropy model), and vertebrate's presence data is used as dependent variables and stream order map and land cover map is used as base data of independent variables. As a result of analysis, habitat potential is higher at riparian and upstream area, and lower at frequently disturbed area. Result indicates that adjacent to stream, upstream, and less disturbed area is the habitat that vertebrate prefer. In particular, mammals prefer adjacent area of stream and forest and reptiles prefer upriver area. Birds prefer adjacent area of stream and midstream and amphibians prefer adjacent area of stream and upriver. The result of this research could help to establish habitat conservation strategy around basin unit in the future.