• 제목/요약/키워드: three species

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Three Newly Recorded Campoplegine Species (Hymenoptera: Ichneumonidae: Campopleginae) from Korea

  • Choi, Jin-Kyung;Lee, Jong-Wook
    • Animal Systematics, Evolution and Diversity
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    • 제24권3호
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    • pp.285-289
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    • 2008
  • We report three newly recorded campoplegine species, Klutiana jezoensis (Uchida, 1957), Dusona maruyamator Hinz, 1979, Dusona petiolator (Fabricius, 1804), for the first time from Korea. Genus Klutiana Betrem (1933), is firstly recorded from Korea. Photographs and diagnosis are provided for identification.

Stability for a Holling Type IV Food Chain System With Impulsive Perturbations

  • Baek, Hunki;Do, Young-Hae
    • Kyungpook Mathematical Journal
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    • 제48권3호
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    • pp.515-527
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    • 2008
  • We investigate a three species food chain system with a Holling type IV functional response and impulsive perturbations. We find conditions for local and global stabilities of prey(or predator) free periodic solutions by applying the Floquet theory and the comparison theorems.

Morhological record of three soil ciliates (Ciliophora) from Korea

  • Kim, Kang-San;Min, Gi-Sik
    • Journal of Species Research
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    • 제6권spc호
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    • pp.110-113
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    • 2017
  • We collected three soil ciliates, Colpoda maupasi Enriquez, 1908, Tillina minima Alekperov, 1985, and Gonostomum singhii Kamra et al., 2008, in Korea. The two genera, Colpoda and Tillina, belong to the class Colpodea, and the other, Gonostomum belongs to the class Spirotrichea. We describe these species based on observations of live and protargol-impregnated specimens.

한국 각질해면류 모래해면속(망각해면목: 가는실해면과)의 3신종 (Three New Horny Sponges of the Genus Psammocinia (Dictyoceratida: Irciniidae) from Korea)

  • Chung Ja Sim
    • Animal Systematics, Evolution and Diversity
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    • 제14권1호
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    • pp.35-42
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    • 1998
  • 제주도와 남해도에서 채집된 모래해면속의 3신종, Psammocinia mammiformis, P. mosulpia, 그리고 P. jejuensis를 기재한다. 모래해면속의 특징은 많은 양의 모래입자가 그들의 섬유나 기질안에 포함되어 있거나 또는 해면의 표면에 모래껍질로서 포함되어 있는 것이 특징이다.

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PERMANENCE FOR THREE SPECIES PREDATOR-PREY SYSTEM WITH DELAYED STAGE-STRUCTURE AND IMPULSIVE PERTURBATIONS ON PREDATORS

  • Zhang, Shuwen;Tan, Dejun
    • Journal of applied mathematics & informatics
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    • 제27권5_6호
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    • pp.1097-1107
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    • 2009
  • In this paper, three species stage-structured predator-prey model with time delayed and periodic constant impulsive perturbations of predator at fixed times is proposed and investigated. We show that the conditions for the global attractivity of prey(pest)-extinction periodic solution and permanence of the system. Our model exhibits a new modelling method which is applied to investigate impulsive delay differential equations. Our results give some reasonable suggestions for pest management.

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울릉도 해역의 단각류(갑각류) II (The Marine Amphipod Crustaceans of Ulreung Island, Korea : Part II)

  • 김원;김창배
    • Animal Systematics, Evolution and Diversity
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    • 제7권1호
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    • pp.13-38
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    • 1991
  • This study on the five families (Anamixidae, Colomastigidae, Eophliantidae, Eusiridae, and Hyalidae) of fammaridean amphipods of Ulreung Island was based on the materials collected at eight localities in Ulreung Island. Nine speices of seven genera were identified. Of these, three (Paranamixis denticulus, Colomastix prionotos, and Hyale bisaeta) were new to science. Three species (Ceinina japonica, Eusiroides monoculoides japonicus, and Allorchestes angusta) were new recordsfor Korean waters. These six species were descirbed with illustrations.

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Zoeal Stages of Alpheus brevicristatus De Haan, 1849 (Decapoda, Caridea, Alpheidae) with a Key to the First Zoeal Larvae of Three Korean Alpheus Species

  • Yang, Hoi-Jeong;Kim, Chang-Hyun
    • Animal cells and systems
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    • 제2권2호
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    • pp.187-193
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    • 1998
  • The four zoeal stages of Alpheus brevicristatus De Haan, 1849 are described and illustrated in detail from larvae roared in the laboratory. The larvae of A. brevicristatus was compared with those of the other Alpheus and a key to the first zoeal larvae of three Korean Alpheus species is provided.

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해초류에 공생하는 한국산 요각류 3종 (Three Species of the Notodelphyid Copepods(Cyclopoida) Associated with the Solitary Ascidians(Tunicata) in Korea)

  • In-Soon Seo;Kyung-Sook Lee
    • Animal Systematics, Evolution and Diversity
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    • 제14권4호
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    • pp.391-413
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    • 1998
  • 해초류 (피낭류)로부터 채집된 한국산 요각류 3미기록종(Doropygus curvipes Gotto: Notodelphys agilis villosus Ooishi: Bonnierilla curvicaudata Ooishi)이 확인되어 재기재한다. 따라서 해초류에 공생하는 한국산 요각류는 11종이 보고 되어진다.

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