• Title/Summary/Keyword: three species

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Eriophyid Mites Associated with Lycium chinese Mill in Korea (한국의 구기자에 기생하는 혹응애)

  • Lee, Won-Koo
    • The Korean Journal of Soil Zoology
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    • v.11 no.1_2
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    • pp.13-15
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    • 2006
  • This report concerns with three species of eriophyid mites on Licium chinensis in Korea. Of them, the external morphology of Aceria tjyingi (Manson 1973) was observed with Scanning Electron Microscope. The author reviewed three species of Korean eryophid mites and suggests Korean names of Aceria kuko kishida, A. macrodonis Keifer, and A. tjyngi (Manson), respectively.

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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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    • v.24 no.3
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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.

Morhological record of three soil ciliates (Ciliophora) from Korea

  • Kim, Kang-San;Min, Gi-Sik
    • Journal of Species Research
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    • v.6 no.spc
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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.

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

  • Chung Ja Sim
    • Animal Systematics, Evolution and Diversity
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    • v.14 no.1
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    • pp.35-42
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    • 1998
  • Three new Psammocinia species of the family Irciniidae, Psammocinia jejuensis, P. mosulpia and P. mammiformis, are described from Cheju Island and Namhae Island, Korea. The characteristic of these Psammocinian sponges is that they have the large quantity of sand grain in fibres, matrix and surface sand crust.

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New Records of Three Brachyuran Species (Crustacea, Decapoda) from Korea (韓國 未記錄 게類(甲殼類, 十脚目) 3種에 관하여)

  • Kim, Hoon-Soo;Choe, Byung-Lae
    • The Korean Journal of Zoology
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    • v.12 no.1
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    • pp.9-12
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    • 1969
  • Three species of Brachyura (Crustacea), Rhynchoplax coralicola Rathbun, Hemigrapsus sinensis Rathbun and Nanosesarma gordoni (Shen), are added in the list as new to the fauna of Korea, with brief descriptions stressed on the male first pleopods (except Nanosesarma grodoni).

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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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    • v.27 no.5_6
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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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The Marine Amphipod Crustaceans of Ulreung Island, Korea : Part II (울릉도 해역의 단각류(갑각류) II)

  • Kim, Won;Kim, Chang-Bae
    • Animal Systematics, Evolution and Diversity
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    • v.7 no.1
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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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    • v.2 no.2
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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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