The Consequences of Ant-Attendance to the Biological Control of the Red Wax Scale Insect Ceroplastes rubens by Anicetus beneficus
1. The effects of an attendant ant (Lasius niger) on the host-parasitoid system of the red wax scale insect (Ceroplastes rubens) and its parasitoid wasp (Anicetus beneficus) and in relation to biological control efficiency of the wasp were examined by behavioural field observations, ant exclusion ex...
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| Veröffentlicht in: | The Journal of applied ecology 1996-06, Vol.33 (3), p.609-618 |
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| container_title | The Journal of applied ecology |
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| creator | Itioka, Takao Inoue, Tamiji |
| description | 1. The effects of an attendant ant (Lasius niger) on the host-parasitoid system of the red wax scale insect (Ceroplastes rubens) and its parasitoid wasp (Anicetus beneficus) and in relation to biological control efficiency of the wasp were examined by behavioural field observations, ant exclusion experiments in the field, and field censuses of the host population density and the percentage of parasitism. 2. Parasitoids were frequently observed to interrupt their ovipositional behaviour due to interactions with ants attending host aggregations. 3. Ant-exclusion experiments revealed that ant-attendance caused a decrease in the percentage parasitism and consequently an increase in the growth rate of the host population. 4. The results of field censuses showed that, under the natural conditions in which some generalist ant species usually attended the host aggregations, host density remained at a high level or gradually increased over a 5-year period. Inverse density dependence was detected in the parasitism, which was expected from the density-biased defensive effects of ant-attendance. 5. Overall, these results indicate that ant-attendance on C. rubens restricts the ovipositional ability of the parasitoid and thus reduces the effectiveness of the parasitoid as a control agent of C. rubens. |
| doi_str_mv | 10.2307/2404989 |
| format | Article |
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The effects of an attendant ant (Lasius niger) on the host-parasitoid system of the red wax scale insect (Ceroplastes rubens) and its parasitoid wasp (Anicetus beneficus) and in relation to biological control efficiency of the wasp were examined by behavioural field observations, ant exclusion experiments in the field, and field censuses of the host population density and the percentage of parasitism. 2. Parasitoids were frequently observed to interrupt their ovipositional behaviour due to interactions with ants attending host aggregations. 3. Ant-exclusion experiments revealed that ant-attendance caused a decrease in the percentage parasitism and consequently an increase in the growth rate of the host population. 4. The results of field censuses showed that, under the natural conditions in which some generalist ant species usually attended the host aggregations, host density remained at a high level or gradually increased over a 5-year period. Inverse density dependence was detected in the parasitism, which was expected from the density-biased defensive effects of ant-attendance. 5. Overall, these results indicate that ant-attendance on C. rubens restricts the ovipositional ability of the parasitoid and thus reduces the effectiveness of the parasitoid as a control agent of C. rubens.</description><identifier>ISSN: 0021-8901</identifier><identifier>EISSN: 1365-2664</identifier><identifier>DOI: 10.2307/2404989</identifier><identifier>CODEN: JAPEAI</identifier><language>eng</language><publisher>Oxford: Blackwell Science Ltd</publisher><subject>Aggregation ; Ants ; Applied ecology ; Biological and medical sciences ; Biological control ; Ceroplastes rubens ; Coccidae ; Coccoidea ; Control ; Encyrtidae ; Formicidae ; Fundamental and applied biological sciences. Psychology ; Insect behavior ; Insect ecology ; Insect pests ; Lasius niger ; Parasite hosts ; Parasitism ; Parasitoids ; Phytopathology. Animal pests. Plant and forest protection ; Protozoa. Invertebrates ; Scale insects</subject><ispartof>The Journal of applied ecology, 1996-06, Vol.33 (3), p.609-618</ispartof><rights>Copyright 1996 British Ecological Society</rights><rights>1996 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c378t-a153577d0454d1223e794f7e3c2481fa60c07da491e84a9085c37ad48270aa703</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/2404989$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/2404989$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,27901,27902,57992,58225</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3170827$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Itioka, Takao</creatorcontrib><creatorcontrib>Inoue, Tamiji</creatorcontrib><title>The Consequences of Ant-Attendance to the Biological Control of the Red Wax Scale Insect Ceroplastes rubens by Anicetus beneficus</title><title>The Journal of applied ecology</title><description>1. The effects of an attendant ant (Lasius niger) on the host-parasitoid system of the red wax scale insect (Ceroplastes rubens) and its parasitoid wasp (Anicetus beneficus) and in relation to biological control efficiency of the wasp were examined by behavioural field observations, ant exclusion experiments in the field, and field censuses of the host population density and the percentage of parasitism. 2. Parasitoids were frequently observed to interrupt their ovipositional behaviour due to interactions with ants attending host aggregations. 3. Ant-exclusion experiments revealed that ant-attendance caused a decrease in the percentage parasitism and consequently an increase in the growth rate of the host population. 4. The results of field censuses showed that, under the natural conditions in which some generalist ant species usually attended the host aggregations, host density remained at a high level or gradually increased over a 5-year period. Inverse density dependence was detected in the parasitism, which was expected from the density-biased defensive effects of ant-attendance. 5. Overall, these results indicate that ant-attendance on C. rubens restricts the ovipositional ability of the parasitoid and thus reduces the effectiveness of the parasitoid as a control agent of C. rubens.</description><subject>Aggregation</subject><subject>Ants</subject><subject>Applied ecology</subject><subject>Biological and medical sciences</subject><subject>Biological control</subject><subject>Ceroplastes rubens</subject><subject>Coccidae</subject><subject>Coccoidea</subject><subject>Control</subject><subject>Encyrtidae</subject><subject>Formicidae</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Insect behavior</subject><subject>Insect ecology</subject><subject>Insect pests</subject><subject>Lasius niger</subject><subject>Parasite hosts</subject><subject>Parasitism</subject><subject>Parasitoids</subject><subject>Phytopathology. Animal pests. Plant and forest protection</subject><subject>Protozoa. Invertebrates</subject><subject>Scale insects</subject><issn>0021-8901</issn><issn>1365-2664</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEQhoMoWKv4F3IQPa1ONtlN9liLH4WCoBWPS5qd1S3bTU2yYI_-c7O06MnThJlnnjAvIecMrlMO8iYVIApVHJAR43mWpHkuDskIIGWJKoAdkxPvVwBQZJyPyPfiA-nUdh4_e-wMemprOulCMgkBu0rHFg2WhkjdNra1743R7bAQnG0Hdpg8Y0Xf9Bd9iTOksygzgU7R2U2rfYhO1y-x83S5jerGYOjjGzusG9P7U3JU69bj2b6Oyev93WL6mMyfHmbTyTwxXKqQaJbxTMoKRCYqlqYcZSFqidykQrFa52BAVloUDJXQBags7ulKqFSC1hL4mFzuvBtn460-lOvGG2xb3aHtfckyxZhUeQSvdqBx1nuHdblxzVq7bcmgHCIu9xFH8mKv1D6eXrsYV-N_cc4kxO__sJUP1v1r-wEkdoVa</recordid><startdate>19960601</startdate><enddate>19960601</enddate><creator>Itioka, Takao</creator><creator>Inoue, Tamiji</creator><general>Blackwell Science Ltd</general><general>Blackwell Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>7SS</scope><scope>C1K</scope></search><sort><creationdate>19960601</creationdate><title>The Consequences of Ant-Attendance to the Biological Control of the Red Wax Scale Insect Ceroplastes rubens by Anicetus beneficus</title><author>Itioka, Takao ; Inoue, Tamiji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c378t-a153577d0454d1223e794f7e3c2481fa60c07da491e84a9085c37ad48270aa703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Aggregation</topic><topic>Ants</topic><topic>Applied ecology</topic><topic>Biological and medical sciences</topic><topic>Biological control</topic><topic>Ceroplastes rubens</topic><topic>Coccidae</topic><topic>Coccoidea</topic><topic>Control</topic><topic>Encyrtidae</topic><topic>Formicidae</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Insect behavior</topic><topic>Insect ecology</topic><topic>Insect pests</topic><topic>Lasius niger</topic><topic>Parasite hosts</topic><topic>Parasitism</topic><topic>Parasitoids</topic><topic>Phytopathology. Animal pests. Plant and forest protection</topic><topic>Protozoa. Invertebrates</topic><topic>Scale insects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Itioka, Takao</creatorcontrib><creatorcontrib>Inoue, Tamiji</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Entomology Abstracts (Full archive)</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>The Journal of applied ecology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Itioka, Takao</au><au>Inoue, Tamiji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The Consequences of Ant-Attendance to the Biological Control of the Red Wax Scale Insect Ceroplastes rubens by Anicetus beneficus</atitle><jtitle>The Journal of applied ecology</jtitle><date>1996-06-01</date><risdate>1996</risdate><volume>33</volume><issue>3</issue><spage>609</spage><epage>618</epage><pages>609-618</pages><issn>0021-8901</issn><eissn>1365-2664</eissn><coden>JAPEAI</coden><abstract>1. The effects of an attendant ant (Lasius niger) on the host-parasitoid system of the red wax scale insect (Ceroplastes rubens) and its parasitoid wasp (Anicetus beneficus) and in relation to biological control efficiency of the wasp were examined by behavioural field observations, ant exclusion experiments in the field, and field censuses of the host population density and the percentage of parasitism. 2. Parasitoids were frequently observed to interrupt their ovipositional behaviour due to interactions with ants attending host aggregations. 3. Ant-exclusion experiments revealed that ant-attendance caused a decrease in the percentage parasitism and consequently an increase in the growth rate of the host population. 4. The results of field censuses showed that, under the natural conditions in which some generalist ant species usually attended the host aggregations, host density remained at a high level or gradually increased over a 5-year period. Inverse density dependence was detected in the parasitism, which was expected from the density-biased defensive effects of ant-attendance. 5. Overall, these results indicate that ant-attendance on C. rubens restricts the ovipositional ability of the parasitoid and thus reduces the effectiveness of the parasitoid as a control agent of C. rubens.</abstract><cop>Oxford</cop><pub>Blackwell Science Ltd</pub><doi>10.2307/2404989</doi><tpages>10</tpages></addata></record> |
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| ispartof | The Journal of applied ecology, 1996-06, Vol.33 (3), p.609-618 |
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| source | Jstor Complete Legacy |
| subjects | Aggregation Ants Applied ecology Biological and medical sciences Biological control Ceroplastes rubens Coccidae Coccoidea Control Encyrtidae Formicidae Fundamental and applied biological sciences. Psychology Insect behavior Insect ecology Insect pests Lasius niger Parasite hosts Parasitism Parasitoids Phytopathology. Animal pests. Plant and forest protection Protozoa. Invertebrates Scale insects |
| title | The Consequences of Ant-Attendance to the Biological Control of the Red Wax Scale Insect Ceroplastes rubens by Anicetus beneficus |
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