Cost of being an intraguild predator in predatory ladybirds
Survival and growth efficiency of fourth-instar larvae of two species of aphidophagous ladybirds, Coccinella septempunctata brucki Mulsant and Harmonia axyridis Pallas were determined when fed aphid, Acyrthosiphon pisum Harris, or intraguild prey, another species of aphidophagous ladybird, Propylea...
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| Veröffentlicht in: | Applied Entomology and Zoology 2008/02/25, Vol.43(1), pp.143-147 |
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| creator | Sato, Satoru Jimbo, Rie Yasuda, Hironori Dixon, Anthony F. G. |
| description | Survival and growth efficiency of fourth-instar larvae of two species of aphidophagous ladybirds, Coccinella septempunctata brucki Mulsant and Harmonia axyridis Pallas were determined when fed aphid, Acyrthosiphon pisum Harris, or intraguild prey, another species of aphidophagous ladybird, Propylea japonica Thunberg. The percentage of fourth instars fed intraguild prey that completed their development was 42.9% for C. septempunctata brucki and 100% for H. axyridis, respectively. All fourth-instar larvae of both species fed aphids completed their development. The average growth efficiency (increase in body weight/weight of prey consumed) of fourth instars of H. axyridis was significantly lower than that of C. septempunctata brucki when fed aphids. In contrast, when fed intraguild prey, it was significantly higher than that of C. septempunctata brucki. Adaptive significance and determinants of prey specialization in aphidophagous ladybirds are discussed. |
| doi_str_mv | 10.1303/aez.2008.143 |
| format | Article |
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In contrast, when fed intraguild prey, it was significantly higher than that of C. septempunctata brucki. Adaptive significance and determinants of prey specialization in aphidophagous ladybirds are discussed.</description><subject>Acyrthosiphon pisum</subject><subject>Aphididae</subject><subject>Coccinella septempunctata brucki</subject><subject>growth efficiency</subject><subject>Harmonia axyridis</subject><subject>Harmonia axyridis Pallas</subject><subject>intraguild predator</subject><subject>prey specialization</subject><subject>Propylea japonica</subject><issn>0003-6862</issn><issn>1347-605X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNpdkE1PwzAMhiMEEmNw4wdUQuJEh52kbSIOCE18SZO4gMQtctN0dOrakXSH8esJFO3Axbbs57Wtl7FzhBkKENfkvmYcQM1QigM2QSGLNIfs_ZBNAECkucr5MTsJYQXApVZywm7mfRiSvk5K13TLhLqk6QZPy23TVsnGu4qG3sfevt4lLVW7svFVOGVHNbXBnf3lKXt7uH-dP6WLl8fn-d0itZmCIdWoC4RKW6RaYS2KeFiVEijTaCstdWFlnaNAVUmNVNYFkgWuSq41LySKKbsc9258_7l1YTDrJljXttS5fhsMh5xnXOkIXvwDV_3Wd_E3g1IqpTjHLFJXI2V9H4J3tdn4Zk1-ZxDMj48m-mh-fIwqEfHbEV-FgZZuD5MfGtu6X1gKg2OIiv3EfpA3rhPfEfV6vw</recordid><startdate>2008</startdate><enddate>2008</enddate><creator>Sato, Satoru</creator><creator>Jimbo, Rie</creator><creator>Yasuda, Hironori</creator><creator>Dixon, Anthony F. 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The average growth efficiency (increase in body weight/weight of prey consumed) of fourth instars of H. axyridis was significantly lower than that of C. septempunctata brucki when fed aphids. In contrast, when fed intraguild prey, it was significantly higher than that of C. septempunctata brucki. Adaptive significance and determinants of prey specialization in aphidophagous ladybirds are discussed.</abstract><cop>Heidelberg</cop><pub>JAPANESE SOCIETY OF APPLIED ENTOMOLOGY AND ZOOLOGY</pub><doi>10.1303/aez.2008.143</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Applied Entomology and Zoology, 2008/02/25, Vol.43(1), pp.143-147 |
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| language | eng |
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| source | J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese; EZB-FREE-00999 freely available EZB journals |
| subjects | Acyrthosiphon pisum Aphididae Coccinella septempunctata brucki growth efficiency Harmonia axyridis Harmonia axyridis Pallas intraguild predator prey specialization Propylea japonica |
| title | Cost of being an intraguild predator in predatory ladybirds |
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