• 제목/요약/키워드: Fauna distribution

검색결과 211건 처리시간 0.023초

Aquatic Beetles Fauna in Nohwa and Bogil Islands, and Copelatus parallelus (Coleoptera: Dytiscidae) and Scirtes sobrinus (Coleoptera: Scirtidae) New to South Korea

  • Jung, Sang Woo;Min, Hong Ki;Lee, Dae-Hyun
    • Animal Systematics, Evolution and Diversity
    • /
    • 제36권2호
    • /
    • pp.128-138
    • /
    • 2020
  • A faunistic list and distribution of aquatic beetles were given with two newly records, Copelatus parallelus Zimmermann, 1920 (family Dytiscidae) and Scirtes sobrinus Lewis, 1895 (family Scirtidae) from Nohwa and Bogil islands in South Korea. As a result, a total of 30 species belonging to 24 genera and eight families were recognized: 12 Dytiscidae species, eight Hydrophilidae species, three Haliplidae species, two Scirtidae species, two Gyrinidae species, one Noteridae species, one Elmidae species, and one Psephenidae species. Composition and habitus photographs of all collected aquatic beetles, habitats, and the diagnostic characters of C. parallelus and S. sobrinus are provided.

A Catalogue of the Mollusks of Jeju Island, South Korea

  • Noseworthy, Ronald G.;Lim, Na-Rae;Choi, Kwang-Sik
    • 한국패류학회지
    • /
    • 제23권1호
    • /
    • pp.65-104
    • /
    • 2007
  • This catalogue is the result of a four-year survey of the mollusks of Jeju Island, the southernmost island in the Republic of Korea. Forty-eight survey stations were visited, with a total of 82 specific localities being sampled. Literature records were also obtained. Local and world distribution of each species is included. This survey reports a total of 1,072 mollusk species and subspecies; 1,015 marine and 57 land and freshwater. There are 812 gastropods, of which 755 are either entirely marine or have marine affinities. The best represented of the marine families are the Pyramidellidae, Trochidae, and Ovulidae. There are 225 bivalves, none being freshwater species, with the Veneridae, Mytilidae, and Arcidae having the largest number of species. Among the smaller classes there are sixteen Cephalopoda, eleven Polyplacophora, and eight Scaphopoda. Compared to mainland Korea, Jeju Island has a rather small terrestrial mollusk fauna and a depauperate freshwater one, with mainly Palearctic connections. The Helixarionidae and Bradybaenidae are the largest terrestrial families. The marine faunal affinities with the neighboring Japonic and Indo-West Pacific provinces are also discussed, revealing that this island's mollusk fauna is a blend of warm-temperate and subtropical-tropical species.

  • PDF

A Study on the Fish Community and Various Guilds to Stream Order in Geum River Watershed

  • Lee, Su-Ho;Lee, Jae-Hoon;Han, Jeong-Ho;An, Kwang-Guk
    • 생태와환경
    • /
    • 제43권4호
    • /
    • pp.503-512
    • /
    • 2010
  • This study was conducted to evaluate fish fauna, species composition, and various guilds against stream orders along with analysis of fish community structure and diversity in Geum River watershed from 2005 to 2007. The total number of fish collected was 4,216 representing 12 families with 56 species. Zacco platypus was the most abundant fish species with 26% in relative abundance (RA). Korean endemic species were 24 species including Zacco koreanus, Microphysogobio yaluensis, Gobiobotia nakdongensis, and Iksookimia koreensis, etc. We also collected endangered fish species such as G. nakdongensis, Liobagrus obesus, and Pseudopungtungia nigra, etc., and their new distribution sites were found in the survey, providing some sites of the fish conservation and protection. Fish tolerance and trophic guilds analysis showed that the proportion of sensitive species, intermediate species, and tolerant species were 33.4%, 29.3%, and 37.3%, respectively and omnivores and insectivores were 48.1 % and 38.4%, respectively. Analysis of site-base study indicated that tolerant species and omnivore species were high in some polluted tributary streams (i.e., Gap and Miho stream) and sensitive and insectivore species were low. In the functional relations, expressed as simple linear regression equations, of stream order on fish metric attributes, showed that the number of species and the number of individuals increased as the stream order increases. This phenomenon was explained by greater availability of stable water volume, rich food, and higher physical habitat capacity. Such guild compositions and stream order characteristics of the river influenced the community structures, based on species diversity, dominance and evenness index in the study. This study may be used as important data in the future for comparisons of fish fauna and compositions before and after two weir (dam) constructions in the middle of Geum River by the government.

진도 해역의 극피동물상 (Fauna of Echinoderms from Jindo Island and Its Adjacent Waters, Korea)

  • 신숙
    • Animal Systematics, Evolution and Diversity
    • /
    • nspc5호
    • /
    • pp.47-60
    • /
    • 2005
  • 2004년 6월 29일부터 7월 1일까지 이루어진 한국동물분류학회 창립 20주년 기념 합동채집회에서 벌포와 초평, 수품, 회동, 서망, 북위 $34^{\circ}11'N$과 동경 $126^{\circ}21'E$ 등, 진도의 6개 지역에서 채집되어 동정된 극피동물은 4강 10목 13과 20종으로서 바다나리가 1목 1과 1종, 불가사리류가 3목 4과 7종. 거미불가사리 류가 2목 3과 5종, 성게류가 1목 2과 4종, 해삼류가 3목 3과 3종이었다. 이들 중 바다니리류 1종, 가시예쁜갯고사리 (Antedon serrata)와 불가사리류 2종, 도우손햇님불가사리 (Solaster dawsoni)와 일본불가사리 (Distolasterias nipon), 그리고 거미불가사리류 1종, 나무거미불가사리 (Astrodendrum sagaminum)는 진도에서 처음 기록되는 종이며 1종의 한국 미기록 해삼류 (Pseudocnus sp.)가 포함된다. 과거기록을 포함하여 총 31종의 종 목록을 작성하였으며, 분포형과 종 출현양상을 근거로 진도 해역의 극피동물상을 논하였다.

북동태평양 심해저 퇴적물에 서식하는 대형저서동물의 군집 (Macrozoobenthic Communities of the Deep Sea Sediments in the Northeastern Pacific Ocean)

  • 최진우;김동성;현정호;이창훈
    • Ocean and Polar Research
    • /
    • 제26권2호
    • /
    • pp.367-376
    • /
    • 2004
  • Macrobenthos were collected at 7 stations located from $5^{\circ}N$ to $10^{\circ}N$ with 1o interval along the longitude of $131^{\circ}W$ using a box corer with sampling area of $0.25\;m^2$ in July, 1999. In order to see the vertical distribution of macrobenthos in sediments, each subcore sample was divided into 5 layers with 1 cm interval up to 6 cm depth. Each subcore sample was sieved through 0.3 mm mesh screen and fixed with 10% Rose Bengal added formalin. A total of 22 faunal groups in 11 phyla were sampled and the average density was $959\;{\pm}\;584\;ind./m^2$. Foraminiferans comprised 34.8% of total specimens were the most abundant fauna, and followed by nematodes (27.5%), polychaete worms (15.7%), and benthic harpactoid copepods (10.4%). A latitudinal trend was shown in the distribution of macrobenthos; the maximum density of $1,832\;ind./m^2$ appeared at station N06 and the most poverished community occurred at station N09 with the density of $248\;ind./m^2$. The density of typical macrofaunal taxa except foraminiferans and nematods was $116\;ind./m^2$. In the vertical distribution of macrobenthos, more than 70% of macrobenthos occurred in the upper 2 cm layer, and upper 4 cm layer contained about 90% of macrofauna. Polychaete worms consisted of 22 families, and cirratulid and paraonid worms were dominant polychaete species. The prominant feeding guilds of polychaete worms were SDT (surface, descretely motile, tenaculate feeding) and SMX (surface, motile, non-jawed); they comprised more than 50% of polychaete abundance. These feeding guilds of polychaete worms suggests that the deep sea benthos should be well adapted the newly settled deposits from water column, but this should be clarified by the further studies.

한국산 개미의 분포에 관한 연구(9) -덕유산의 개미상- (Studies on the Distribution of Ants(Formicidae) in Korea (9) -Ant Fauna in Mt. Togyusan)

  • 최병문;방종렬
    • 한국응용곤충학회지
    • /
    • 제31권2호
    • /
    • pp.101-112
    • /
    • 1992
  • 덕유산 지역의 개미의 분포와 개미상을 밝히기 위하여 덕유산 지역을 5개 코스로 나누어 1986년, 1989년, 1991년의 3개년간 16차례에 걸쳐 476 colony를 채집하여 4아과 22속 44종의 분포를 확인하였다. 아과별 종조성은 두마디개미아과가 12속 21종으로 가장 많고 불개미아과가 6속 20종, 침개미아과가 3속 4종, 시베리아개미아과가 1속 1종 이었다. 수직분포의 경향은 고도 500 m에서 전체종의 93%인 41종의 집중 분포하고 있었으며 종별수직분포의 상한계선은 고도 700 m에서 일본침개미와 장구개미를 포함한 5종, 고도 1,000 m에서는 침개미, 호리가슴개미, 나도누은털개미, 스미드개미를 포함하여 10종이 분포하고 있었다.

  • PDF

한국산 개미의 분표에 관한 연구(8) -전라남도 도서지역(10개 도)의 개미상- (Studies on the Distribution of Ants(Formicidae) in Korea(8) -Ant Fauna in 10 Islands, Chollanam-do-)

  • 김창효;최병문;박종열
    • 한국응용곤충학회지
    • /
    • 제31권4호
    • /
    • pp.345-359
    • /
    • 1992
  • 전라남도 도라지역에 분포하는 개미의 종류와 그의 종조성을 조사할 목적으로 1986년, 1989년, 1990년, 1991년의 4년간 10개 도서의 31개 지역에서 740 colony를 채집하여 동정 한 결과 4아과 30속 54종이 분포하는 것을 확인하였으며, 그 중에 대흑산도 예리에서 채집한 쌍털비늘개미(신칭)와 소안도 맹선리에서 채집된 조개무늬비늘개미(신청)는 한국산 미기록종인 것으로 사료된다. 10개 도라지역에 분포하는 개미의 종조성이 밝혀졌으며 Nomura-Simpson's Coefficient(NSC) 공식에 의한 종류사도를 분석한 바 전라남도 도라지역의 개미상은 연속적이였다.

  • PDF

Endemic and sub-endemic water beetles of Mongolia and their distribution ranges

  • Enkhnasan, Davaadorj;Boldgiv, Bazartseren
    • Journal of Species Research
    • /
    • 제8권4호
    • /
    • pp.395-406
    • /
    • 2019
  • The aim of this study was to compile a species list of endemic water beetles of Mongolia and determine their distribution patterns. A total of 1,179 individuals of endemic water beetles were collected from nine different sub-basins (123 sample points) throughout the country. Currently, 21 endemic and sub-endemic species have been recorded in Mongolia. Eight of these species were strictly endemic. The endemic and sub-endemic species were found only among four families: Dytiscidae (10 out 99 spp.), Gyrinidae (1 out 7 spp.), Helophoridae (5 out 16 spp.), and Hydraenidae (5 out 13 spp.). The rate of endemism was higher in Hydraenidae than other families (38.4%). Endemic beetle fauna was most similar between the Onon and Kherlen River Basins (80%). Helophorus parajacutus Angus, 1970 was common in five sub-basins, but Agabus kaszabi $Gu{\acute{e}}orguiev$, 1972, Gyrinus sugunurensis Nilsson, 2001 and Ochthebius mongolicus Janssens, 1967 were recorded from only one sub-basin. In terms of sub-endemic species, Mongolia was mostly similar to the fauna of Eastern Siberia, Russia (73.7%) than other neighboring regions. Due to Mongolia's vast territory and different natural zones, endemism was exceptionally low (12.4%), but these data provide baseline information of endemic and rare species for their further conservation.

한국 해산 원시복족목(연체동물문.복족강)의 분류 및 분포 (On the Classfication and Distribution of Archeogastropods from Korean Waters)

  • 최병래;김훈수
    • Animal Systematics, Evolution and Diversity
    • /
    • nspc2호
    • /
    • pp.135-198
    • /
    • 1988
  • 저자들은 1979년 7월부터 1988년 5월까지 전국 해안 60개 지점에서 채집한 해산 원시복족류를 동정 분류하고 과거의 문헌들을 종합정리하여 한국산 원시복족류의 분포를 조사하였다. 지금까지 한국 해산 원시복족류는 52종 8아종이 보고 되었으며 저자들이 한국 미기록 9종을 추가하여 총 4아목, 5상과, 10과, 61종, 8아종이 되었으며 한국미기록 9종의 목록은 다음과 같다. Diodora sieboldii (Reeve), Montfortula pulchra A. Adams, Collisella langfordi Habe, Notoacmea gloriosa Habe, Mesoclanculus ater (Pilsbry), Cantharidus hiraesei (Pilsbry), Cuildfordia triumphans (Philippi), Tristichotrochus aculeatus (Sowerby). Homalopoma sangarense(Schrenck). 저자는 각 종에 대한 Synonym등 학명을 정리하고 종 및 상위 분류군에 대한 검색표를 작성하였으며 미기록종에 대한 기재를 하였다.

  • PDF

남산과 광릉의 토양 미소절지동물에 관한 연구 (Soil Microarthropods Fauna at the Namsan and Kwangreung)

  • 박홍현;정철의;이준호;이범영
    • 한국토양동물학회지
    • /
    • 제1권1호
    • /
    • pp.37-47
    • /
    • 1996
  • This research was carried out to investigate soil mictoarthropods fauna in Namsan and Kwangreung which were considered to receive different degreeds of environmental pressures. In basic environmental data, Namsan where under rather accelerated acidification by air contamination and acidic rain showed low pH, tardy decomposition and turnover rate. Population density of soil microarthropods was high in Kwangreung 17,169.8/\ulcorner\ulcorner(coniferous forests), 17,892.6/$\textrm{m}^2$(deciduous forests) than in Namsan, 12,143.8/$\textrm{m}^2$ (coniferous forests), 14,216$\textrm{m}^2$(deciduous forests). Biomass of soil microarthropods was 2,020.219mg/$\textrm{m}^2$ at coniferous forests and 4,270.172mg/$\textrm{m}^2$ at deciduous forests in Namsan, and 3,287.326mg/$\textrm{m}^2$ at coniferous forests and 4326.1mg/$\textrm{m}^2$ at deciduous forests in Kwangreung. Population density constantly showed high in spring, and seasonal fluctuations were correlated with seasonal precipitation. As far as vertical distribution is concerned, population density was concentrated in litter layer as 70% while 30% are in soil layer and also decreased with increasing depth.

  • PDF