Taxonomic status of the Apodemus agrarius chejuensis population of Cheju Island, Korea, From the standpoint of external and cranial characters

Oh, Hong-Shik 濟州大學校 基礎科學硏究所 2001 基礎科學硏究 Vol.14 No.2

제주도산 등줄쥐의 분류학적 위치를 재검토하기 위하여 두골의 특징과 외부형태를 한국 본토산 등줄쥐 Apodemus agraius coreae와 근연종인 일본산 A. specious, A. argenteus 및 타이완산 A. semotus와 비교하였다. 외부형태 및 두골의 특징으로부터 제주도산 등줄쥐와 한국 본토산 등줄쥐 사이에는 2개의 계열에 속해 있었다. 체중의 회귀직선은 거의 평행으로 절편간에 유의차가 있었으며, 두골 각 부위의 두골전장에 대한 회귀직선의 비교에서도 8개의 부위에서 유의차가 있었다. 또한 절치공후단과 상악제일구치의 전단 사이의 거리도 서로 달라 제주도산 등줄쥐와 한국 본토산 등줄쥐는 형태학적으로 서도 다르다고 판단되어 제주도산 등줄쥐를 “Apodemus chejuensis"라고 제안한 Oh와 Mori(1998)의 의견을 지지한다. In order to re-examine status of the Korean striped field mice, Apodemus agrarius chejuensis from the Cheju Island, external values and skull characters were compared with A. a. coreae from the Korean Peninsula, A. specious, A. argenteus, and A. semotus. Skull characters of A. a. chejuensis(Cheju population) and A. a. coreae(main1and population) were fitted onto two different clines. The regression lines of the body weight of A. a. chejuensis and A. a. coreae were virtually parallel and there were significant differences between sections. Significant differences were furthermore detected between A. a. chejuensis and A. a. coreae in 8 parts(condylobasa1 length, nasal length, frontal length, interorbital breadth, auditory bulla length, breath of occipital foramen, height of mandible and length of the lower molar series). Moreover, distances between the posterior end of incisive foramina and anterior end of the first upper molar in the Cheju Island and mainland populations were different. These data support the specific division of "Apodemus chejuensis" occurring in the Cheju Island from A. agrarius in the mainland, as proposed by Oh and Mori(1998).

제주도의 주요 습지에 도래하는 도요·물떼새류의 현황

오홍식,임인추,김병수,김완병,박행신 경희대학교 한국조류연구소 2002 연구보고 Vol.8 No.1

본 연구는 제주도 주요 습지에 도래하는 도요ㆍ물떼새류의 지소적인 연구의 일환으로, 1998년 3월부터 2000년 2월까지 2년간 매월 2회씩, 1) 동부지역(하도리 양어장, 종달리 해안 및 성산포 양어장)과, 2)서부지역(용수리 저수지, 금등리 해안 및 대정읍 일과리 해안)으로 나누어 조사하였다. 조사기간 중 2개 지역에서 관찰된 도요ㆍ물떼새류는 총 45종 5,117개체였으며, 지역별로는 동부지역에서 40종 4,910개체, 서부지역에서 38종 927개체로 나타났다. 계절별로는 봄철 2,821개체, 가을철 1,229개체로 봄철에 도래하는 개체수가 가을철보다 많았다. 우점종은 제1차 조사기간인 봄철에는 민물도요 Calidris alpina 2,024개체(88.5%), 흰물떼새 Charadrius alexandrinus 84개체(3.7%), 흰목물떼새 Charadrius placidus 11개체(2.4%)의 순으로 나타났으며, 가을철에도 민물도요 384개체(82.9%), 흰물떼새 20개체(4.3%), 흰목물떼새 11개체(2.4%)의 순으로 나타났다. 제2차 조사기간에는 봄철에 좀도요 Calidria ruficollis 116개체(21.8%), 민물도요 67개체(12.6%), 청다리도요 Tringa nebularia 58개체(10.9%)의 순으로, 가을철에는 민물도요 191개체(24.9%), 노랑발도요 T. brevipes 156개체(20.4%), 삑삑도요 T. ochropus 104개체(13.6%)의 순으로 나타났다. 동부지역은 서부지역에 비하여 우점도는 높았으나, 종다양도와 균등도는 낮게 나타났다. 동부지역과 서부지역간의 유사도는 0.85였다. 본 연구를 통해 물꿩 Hydrophasianus chirurgus, 검은머리물떼새 Haematopus ostralegus, 바늘꼬리도요 Gallinago stenura, 흰꼬리좀도요 Calidrius temminckii 등 4종의 제주도 미기록종과, 검은머리물떼새, 흰목물떼새, 넓적부리도요 Eurynorhynchus pygmeus, 알락꼬리마도요 Numenius madagascariensis 등 3종의 환경부 지정 보호조류가 관찰되었다. This study was part of a continuous research project on the status of migrating shorebirds on major wetlands in Cheju Island. This study was conducted twice every month for two years, from March 1998 to February 2000. The investigated location are mainly two areas. The first census areas were Hado-ri fishfarm and the coast of Jongdal-ri in Kujaw-up and Sungsan-po fishfarm in Sungsan-up, all located in the eastern part of Cheju Island. The second census areas were Yongsu-ri reservoir and the coast of Kumdung-ri in Hangyoung-myon and the coast of Ilgwa-ri in Dejong-up, all located in the western part of Cheju Island. In total, 45 species consisting 5,117 individuals were observed during the census period. There were 40 species and 4,910 individuals in the eastern area, 38 species and 927 individuals in the western area. The number of individuals of shorebirds in the spring migratory season was greater than in the autumn. The dominant species researched during the first census period were 2,024 individuals of Calidrius alpina (88.5%), 84 individuals of Charadrius alexandrinus (3.7%), 59 individuals of Charadrius placidus (2.6%) in spring and 384 individuals of Calidrius alpina (82.9%), 20 individuals of Charadrius alexandrinus (4.3%), 11 individuals of Charadrius placidus (2.4%) in autumn. The dominant species researched during the second census period were 116 individuals of Calidrius ruficolis (21.8%), 67 individuals of Calidrius alpina (12.6%), 58 individuals of Tringa nebularia (10.9%) in spring and 191 individuals of Calidrius alpina (24.9%), 156 individuals of Tringa brebipes (20.4%), 104 individuals of Tringa ochropus (13.6%) in autumn. Dominance index were recorded better in the eastern area than the western area, but species diversity and evenness index were recorded lower in the eastern area than the western area. Similarity index were 0.85 between the eastern area and the western area. Hydrophasianus chirurgus, Haematopus ostralegus, Gallinago stenura and Calidrius temminuckii, which are observed during the census period are previously unrecorded species on Cheju Island. Rare and endangered species were observed such as Haematopus ostralegus, Charadrius placidus, Numenius madagascariensis, and Eurynorhynchus pygmeus.

차귀도의 조류상

오홍식 濟州大學校 基礎科學硏究所 2003 基礎科學硏究 Vol.16 No.2

본 연구는 2002년 2월~9월에 차귀도에 서식하는 조류의 서식현황을 조사하였다. 조사기간동안 관찰된 조류는 모두 39종이었다. 서식현황별로는 텃새가 21종으로 가장 많았고, 다음으로 여름철새가 8종, 겨울철새가 7종이었으며, 나머지 3종은 통과조류였다. 우점종으로는 재갈매기 Larus argentatus, 괭이갈매기 Larus crassirostris, 흰뺨검둥오리 Anas poecilorhyncha, 가마우지 Phalacrocorax capillatus, 칼새 Apus pacificus, 바다직박구리 Monticola solitarius 등이었다. 종 다양도 지수 (H￣)는 3.95-4.31, 종 풍부도 지수는 4.650이었다. 관찰된 조류중법적 보호조류는 환경부가 지정한 멸종 위기조류인 매 Falco peregrinus와 보호조류인 솔개 Milvus migrans, 새홀리기 Falco subbuteo 등3종이었다. A bird survey conducted in Chagwido Island from February to September 2002. A total of 39 bird species was recorded including forest, shrubgrassland and water birds. Among the total 39 species, 21 resident, 8 summer visitor 7 winter visitor, and three passenger migrant were identified in migratory pattern categories. Main bird species are Phalacrocorax capillatus, Anas poecilorhyncha, Larus crassirostris, Larus argentatus Monticola solitarius, Shannon-Weaver species diversity indices (H￣) ranged from 3.95 to 4.31, and the index of bird species richness was 4.650. Three species (Falco peregrinus, Mulvus migrans and Falco subbuteo) - the protected wildlife species designated by the Ministry of Environment was also observed.

제주도의 천연기념물 조류 동계 조사

오홍식 제주대학교 해양연구소 2001 해양자원연구소연구보고 Vol.25 No.-

한라산국립공원의 조류군집

오홍식 제주대학교 기초과학연구소 2002 基礎科學硏究 Vol.15 No.1

본 연구는 한라산국립공원에 서식하고 있는 조류의 군집특성을 파악하기 위하여 2001년 4월부터 2002년 2월까지 조사되었다. 조사기간 동안 서식이 확인된 조류는 모두 72종 15,621개체였다. 관찰된 조류를 계절별 이동형으로 분류해보면, 텃새가 34종, 여름철새가 19종, 겨울철새가 11종이었으며 나머지 8종은 통과조류였다. 가장 많은 조류가 관찰된 서식지는 낙엽활엽수림지대로 69종 9,066개체였다. 한라산은 임연부에서 관목림에 걸쳐, 상록수림, 저지대의 혼효림, 낙엽활엽수림, 고지관목림 4가지형의 연속적인 식생의 다양성을 보여주고 있는데, 낙엽활엽수림대와 혼효림대에는 박새 Parus major, 직박구리 Ixos amaurotis, 큰부리까마귀 Corvus macrorhynchos가, 저지대의 혼효림대에는 큰부리까마귀, 직박구리, 참새 Passer mantanusm, 박새, 고지대의 관목림대에는 큰부리까마귀, 진박새 P. ater, 박새, 상록활엽수림대에는 큰부리까마귀, 직박구리, 멧비둘기 Streptopelia orientalis가 우점을 차지하고 있었다. 고도별로 각각의 종들이 해발고도별로 다른 분포양상을 보였는데, 이는 서식에 필요한 다양한 자원을 효과적으로 얻기 위한 적응수단인 것으로 보인다. The study conducted here is designed to clarify the characteristics of bird communities in Mt. Hall National Park, Jeju Island. For this study, 15,621 individuals among 72 species of birds are recorded during the period of April 2001 to February 2002. Thirty-four species were residents, nineteen summer visitors, eleven winter visitors and the others migrants. The maximum number of birds observed in the deciduous broad-leaved forest is 69 species and 9,066 individuals, respectively. Four types of groups of dominant species are noticed in the varying plant communities ranging from the forest edge to the scrub forest: Parus major, Ixos amaurotis and Corvus macrorhynchos in the deciduous broad-leaved forest and in the mixed (broad and needle) forest, C. macrorhynchos, I. amaurotis, Passer montanus and P. major in mixed forest of the lower montane zone, C. macrorhynchos, P. ater and P. major in the scrub forest and C. macrohychos, I. amaurotis and Streptopelia orientafis in an evergreen broad-leaved forest. There are different distributional patterns of birds in terms of the altitude. It is observed that there is difference in habitat preference or selection of each species, as well.

濟州島産 등줄쥐 Apodemus chejuensis의 精子와 精子變態의 微細構造

오홍식,김원택 제주대학교 생명과학연구소 1998 제주생명과학연구 Vol.1 No.-

Fine structure of spermiogenesis and morphological features of the mature sperms in the Korean striped field mouse, Apodemus chejuensis, were examined by light and electron microscopy. Spermiogenesis was divided into Golgi phase, cap phase, acrosome phase and maturation phase. Early spermiogenesis the Golgi body secreted a proacrosomal granule posteriorly which migrated along the plasma membrane to the anterior of the spermatids. During the cap phase, both the acrosomal granule and vesicle moed toward the anterior pole of the nucleus. The acrosomal vesicle grew and covered approximately the anterior two thirds of the nucleus at the head cap. During the acrosomal phase, most of the acrosomes localized at the anterior pole of the nucleus, and the remainder spreaded into the head cap. And the acrosome contained substances which were different in electron density. The perforatorium and acrosomal ring consisted of densely packed cytoplasmic elements invested by the inner acrosomal membrane. After the development of the tail was completed, the residual body, which consisted of excess cytoplasm containing of few inclusions and organelles, was separated from the spermatozoon. The species of the genus Apodemus have been known that their sperms have a long apical hook that projects caudally. However, the sperm head of A. chejuensis was very truncated. The sperm head of this species also had a falciform, and the outer dense fibers of middle piece were arranged in a horseshoe fashion. It was considered so that the fine structure of the spermatozoon may be a reasonable criterion for determining the phylogenetic relationships of the genus Apodemus.

제주도 초지대 조류의 군집에 관한 연구

오홍식,박행신 濟州大學校 師範大學 科學敎育硏究所 1993 科學敎育 Vol.10 No.1

An investigation into a bird community on grassland in Cheju Island was performed in 4 location : north, south, east and west which are selected as ecotone within a radius of 2km of Mt. Halla. The survey was done twice a month from July 1988 to June 1989 at 4 areas. 1. The total number and species birds observed during survey period were 2,758 and 55 respectively. And the dominant species were Hypsipetes amauroatis Parus major, Passer montarus in order. 2. 7 species were observed continuously during the all period of the survey, 22 species were observed for only a month. There was no species which was observed during the 4 month and 11 month periods of investigation 3. The regression line between the number of individuals and species showed 5% significance and its the correlativity was very high. 4. From the result of log. + ax. = b equation of MOTOMURA, the community structure of January was most simple and the order month was complex. 5. The diversity was high throught the three months of July, March, June and was low in August and January.

제주도의 천연기념물 조류 동계 조사

오홍식 제주대학교 해양과환경연구소 2001 해양과환경연구소 연구논문집 Vol.25 No.-

This study was part of continuous research project on the status of birds designated as Natural Mounments by the korean government. This study was conducted once each month for six months, from October 2000 to March 2001. The investigated location are mainly three areas. The first census area was Hado-ri fishfarm and the coast of Jongdal-ri in Kujaw-up. The second census area was all of Sungsan-po fishfarm in Sungsan-up, al located in the eastern part of Jeju Island. The third census areas were Yongsu-ri reservoir and the coast of Kumdung-ri in Hangyoung-myon, and the coast of Ilgwa-ri in Dejong-up, all located in th western part of Jeju Island. 1. The birds designated as Natural Mounments were recorded in these sites, which were Ciconia nigra, Platalea leucordia, P. minor, Aix galericulata, Anser cygnoides, Branta bernicla, Cygnus cygnus, Grus vipio and eight more species in the survey areas during the research. 2. The dominant species was Aix galericulata 9,564 individuals (96.61%), followed by Platalea minor 107 individuals(1.08%), and then Falco tinnunculus 67 individuals(0.68%), Falco peregrinus 43 individuals(0.68%) 3. The others bird: In total, 133 species consisting 36,205 individuals birds were observed during the census period. There were 121 species and 13,141 individuals in Hado-ro fishfarm, 91 species and 10,255 individuals in Sungsan-po fishfarm, and 104 species and 12,809 individuals in the western area. The dominant species, represented as monthly peak counts, were Anas penelope, A. strepera, A. poecilorhyncha, A. platyrhynchos, Larus argentatys, L. crassirostris, Corvus corone and C. frugllegus. 4. This survey area used for a suitable roosting and feeding place by many waterbirds. Thus, there is a need of critical plans for the conservation and management of birds wintering in this area which includes the prevention of deteriorating habitat quality and preservation of species diversity.

제주도의 주요 습지에 도래하는 도요ㆍ물떼새류의 현황

김완병,오흥식,박행신,임인추 제주대학교 생명과학연구소 1999 제주생명과학연구 Vol.2 No.-

This study was part of a continuous research project on the status of waterbirds on major wetlands on Cheju Island. This study was researched twice each month for two years, from March 1997 to February 1999. In total, 29 species consisting of 4,887 individual birds were observed. The number of individuals of shorebirds was greater in the spring migratory season than in the autumn - in 1997, 131 birds in the spring, 104 birds in the autumn and in 1998, 2,453 birds in the spring, 635 birds in the autumn Pheasant-tailed Jacana, Eurasian Oystercatcher, Pintail Snipe and Temminck's Stint observed at the Hado-ri or Sungsan-po fishfarm are the first recordes on Cheju Island, Korea. Rare and endangered species were observed such as Eurasian Oystercatcher, Long-billed Plover, Far Eastern Curlew, and Spoon-billed Sandpiper. This survey area used for a suitable roosting and feeding place by many shorebirds. Thus, there is a need of critical plans for the conservation and management of shorebirds migrating in this area.

한라산 국립공원내 습지의 동물상 조사

김완병,오홍식,김원택 제주대학교 생명과학연구소 2001 제주생명과학연구 Vol.4 No.-

We surveyed fauna of three inland wetlands, which situated in Mt. Halla National Park-Dongsuak, 1100 High Ground, and Baengnokdam. The total species number of birds observed at three areas was 44 species and the individual numbers were 140 of 24 species at Dongsuak, 204 of 29 species at 1100 High Ground, and 205 of 18 species at Baengnokdam. Species diversity and species richness were the highest at 1100 High Ground. The total species number of Amphibia and Reptilia were 5 and 6, respectively, and any reptile was not observed at Baengnokdam. Survey of mammalians was limited to only four species (Carpreolus pygargus tianschanicus, Meles meles melanogenys, Mustela sibirica quelpartis, and Tamias sibiriricus barberi) and appearance of M. sibirica quelpartis and T. sibiriricus barberi was restricted to Baengnokdam and Dongsuak, respectively.