Influence of the surrounding landscape on crop colonization by a polyphagous insect pest
Identifieur interne : 001416 ( Istex/Corpus ); précédent : 001415; suivant : 001417Influence of the surrounding landscape on crop colonization by a polyphagous insect pest
Auteurs : Frances S. Sivakoff ; Jay A. Rosenheim ; Pierre Dutilleul ; Yves CarrièreSource :
- Entomologia Experimentalis et Applicata [ 0013-8703 ] ; 2013-10.
Abstract
Landscape composition plays an important, but poorly understood, role in the population dynamics of agricultural pest species with broad host ranges including both crops and weeds. One such pest, the generalist plant bug Lygus hesperus Knight (Hemiptera: Miridae), is a key cotton pest that feeds on various hosts differing in quality in California's San Joaquin Valley (USA). We investigated the effects of 15 common crops and uncultivated agricultural land on L. hesperus populations, by correlating the densities of L. hesperus in focal cotton fields with the areas of the 16 crops in surrounding rings. Insect counts were provided by private pest‐control advisors, and spatial data were obtained from Kern County records. We first calculated Spearman's partial correlation coefficients on an annual basis for each crop separately, and then performed a meta‐analysis of these correlations across years to describe the overall effect of a particular crop on L. hesperus after the effects of the 15 other crops are removed. Consistent with studies conducted in other areas, L. hesperus density was positively correlated with safflower, and negatively with cotton. Lygus hesperus density was also correlated with several other crops that are often not considered in pest management, including grape, oat, and onion (positive correlations), and almond, pistachio, and potato (negative correlations). Lygus hesperus density was also found to be negatively correlated with alfalfa and positively correlated with uncultivated habitats, a relationship that receives mixed support in the literature. Several other crops tested were not significantly correlated with L. hesperus densities in focal cotton fields, suggesting a neutral role for them in L. hesperus dynamics. The improved understanding of the effects of a greater variety of crops on L. hesperus population dynamics will be useful in the design of agricultural landscapes for enhanced management of this important polyphagous pest.
Url:
DOI: 10.1111/eea.12101
Links to Exploration step
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<front><div type="abstract">Landscape composition plays an important, but poorly understood, role in the population dynamics of agricultural pest species with broad host ranges including both crops and weeds. One such pest, the generalist plant bug Lygus hesperus Knight (Hemiptera: Miridae), is a key cotton pest that feeds on various hosts differing in quality in California's San Joaquin Valley (USA). We investigated the effects of 15 common crops and uncultivated agricultural land on L. hesperus populations, by correlating the densities of L. hesperus in focal cotton fields with the areas of the 16 crops in surrounding rings. Insect counts were provided by private pest‐control advisors, and spatial data were obtained from Kern County records. We first calculated Spearman's partial correlation coefficients on an annual basis for each crop separately, and then performed a meta‐analysis of these correlations across years to describe the overall effect of a particular crop on L. hesperus after the effects of the 15 other crops are removed. Consistent with studies conducted in other areas, L. hesperus density was positively correlated with safflower, and negatively with cotton. Lygus hesperus density was also correlated with several other crops that are often not considered in pest management, including grape, oat, and onion (positive correlations), and almond, pistachio, and potato (negative correlations). Lygus hesperus density was also found to be negatively correlated with alfalfa and positively correlated with uncultivated habitats, a relationship that receives mixed support in the literature. Several other crops tested were not significantly correlated with L. hesperus densities in focal cotton fields, suggesting a neutral role for them in L. hesperus dynamics. The improved understanding of the effects of a greater variety of crops on L. hesperus population dynamics will be useful in the design of agricultural landscapes for enhanced management of this important polyphagous pest.</div>
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<abstract><p>Landscape composition plays an important, but poorly understood, role in the population dynamics of agricultural pest species with broad host ranges including both crops and weeds. One such pest, the generalist plant bug Lygus hesperus Knight (Hemiptera: Miridae), is a key cotton pest that feeds on various hosts differing in quality in California's San Joaquin Valley (USA). We investigated the effects of 15 common crops and uncultivated agricultural land on L. hesperus populations, by correlating the densities of L. hesperus in focal cotton fields with the areas of the 16 crops in surrounding rings. Insect counts were provided by private pest‐control advisors, and spatial data were obtained from Kern County records. We first calculated Spearman's partial correlation coefficients on an annual basis for each crop separately, and then performed a meta‐analysis of these correlations across years to describe the overall effect of a particular crop on L. hesperus after the effects of the 15 other crops are removed. Consistent with studies conducted in other areas, L. hesperus density was positively correlated with safflower, and negatively with cotton. Lygus hesperus density was also correlated with several other crops that are often not considered in pest management, including grape, oat, and onion (positive correlations), and almond, pistachio, and potato (negative correlations). Lygus hesperus density was also found to be negatively correlated with alfalfa and positively correlated with uncultivated habitats, a relationship that receives mixed support in the literature. Several other crops tested were not significantly correlated with L. hesperus densities in focal cotton fields, suggesting a neutral role for them in L. hesperus dynamics. The improved understanding of the effects of a greater variety of crops on L. hesperus population dynamics will be useful in the design of agricultural landscapes for enhanced management of this important polyphagous pest.</p>
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<orgName>McGill University</orgName>
<address><street>Macdonald Campus, 21111 Lakeshore Road</street>
<city>Ste‐Anne‐de‐Bellevue</city>
<countryPart>QC</countryPart>
<postCode>H9X 3V9</postCode>
<country>Canada</country>
</address>
</affiliation>
<affiliation countryCode="US" type="organization" xml:id="eea12101-aff-0003"><orgDiv>Department of Entomology</orgDiv>
<orgName>University of Arizona</orgName>
<address><street>410 Forbes Building</street>
<city>Tucson</city>
<countryPart>AZ</countryPart>
<postCode>85721</postCode>
<country>USA</country>
</address>
</affiliation>
</affiliationGroup>
<keywordGroup type="author"><keyword xml:id="eea12101-kwd-0001">correlative methods</keyword>
<keyword xml:id="eea12101-kwd-0002">crop hosts</keyword>
<keyword xml:id="eea12101-kwd-0003">landscape composition</keyword>
<keyword xml:id="eea12101-kwd-0004">large survey data sets</keyword>
<keyword xml:id="eea12101-kwd-0005"><i><fc>L</fc>
ygus hesperus</i>
</keyword>
<keyword xml:id="eea12101-kwd-0006">meta‐analysis</keyword>
<keyword xml:id="eea12101-kwd-0007"><fc>H</fc>
emiptera</keyword>
<keyword xml:id="eea12101-kwd-0008"><fc>M</fc>
iridae</keyword>
<keyword xml:id="eea12101-kwd-0009">cotton</keyword>
<keyword xml:id="eea12101-kwd-0010"><fc>M</fc>
alvaceae</keyword>
</keywordGroup>
<fundingInfo><fundingAgency>USDA</fundingAgency>
<fundingNumber>ARZT‐358320‐G‐30‐505</fundingNumber>
</fundingInfo>
<abstractGroup><abstract type="main" xml:id="eea12101-abs-0001"><title type="main">Abstract</title>
<p>Landscape composition plays an important, but poorly understood, role in the population dynamics of agricultural pest species with broad host ranges including both crops and weeds. One such pest, the generalist plant bug <i><fc>L</fc>
ygus hesperus </i>
<fc>K</fc>
night (<fc>H</fc>
emiptera: <fc>M</fc>
iridae), is a key cotton pest that feeds on various hosts differing in quality in <fc>C</fc>
alifornia's <fc>S</fc>
an <fc>J</fc>
oaquin <fc>V</fc>
alley (<fc>USA</fc>
). We investigated the effects of 15 common crops and uncultivated agricultural land on <i><fc>L</fc>
. hesperus</i>
populations, by correlating the densities of <i><fc>L</fc>
. hesperus</i>
in focal cotton fields with the areas of the 16 crops in surrounding rings. Insect counts were provided by private pest‐control advisors, and spatial data were obtained from <fc>K</fc>
ern <fc>C</fc>
ounty records. We first calculated <fc>S</fc>
pearman's partial correlation coefficients on an annual basis for each crop separately, and then performed a meta‐analysis of these correlations across years to describe the overall effect of a particular crop on <i><fc>L</fc>
. hesperus</i>
after the effects of the 15 other crops are removed. Consistent with studies conducted in other areas, <i><fc>L</fc>
. hesperus</i>
density was positively correlated with safflower, and negatively with cotton. <i><fc>L</fc>
ygus hesperus</i>
density was also correlated with several other crops that are often not considered in pest management, including grape, oat, and onion (positive correlations), and almond, pistachio, and potato (negative correlations). <i><fc>L</fc>
ygus hesperus</i>
density was also found to be negatively correlated with alfalfa and positively correlated with uncultivated habitats, a relationship that receives mixed support in the literature. Several other crops tested were not significantly correlated with <i><fc>L</fc>
. hesperus</i>
densities in focal cotton fields, suggesting a neutral role for them in <i><fc>L</fc>
. hesperus</i>
dynamics. The improved understanding of the effects of a greater variety of crops on <i><fc>L</fc>
. hesperus</i>
population dynamics will be useful in the design of agricultural landscapes for enhanced management of this important polyphagous pest.</p>
</abstract>
</abstractGroup>
</contentMeta>
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<mods version="3.6"><titleInfo lang="en"><title>Influence of the surrounding landscape on crop colonization by a polyphagous insect pest</title>
</titleInfo>
<titleInfo type="alternative" contentType="CDATA" lang="en"><title>Influence of the surrounding landscape on crop colonization by a polyphagous insect pest</title>
</titleInfo>
<name type="personal"><namePart type="given">Frances S.</namePart>
<namePart type="family">Sivakoff</namePart>
<affiliation>Department of Entomology, University of California, 1 Shields Ave., CA, 95616, Davis, USA</affiliation>
<affiliation>E-mail: Frances_sivakoff@ncsu.edu</affiliation>
<role><roleTerm type="text">author</roleTerm>
</role>
</name>
<name type="personal"><namePart type="given">Jay A.</namePart>
<namePart type="family">Rosenheim</namePart>
<affiliation>Department of Entomology, University of California, 1 Shields Ave., CA, 95616, Davis, USA</affiliation>
<role><roleTerm type="text">author</roleTerm>
</role>
</name>
<name type="personal"><namePart type="given">Pierre</namePart>
<namePart type="family">Dutilleul</namePart>
<affiliation>Department of Plant Science, McGill University, Macdonald Campus, 21111 Lakeshore Road, QC, H9X 3V9, Ste‐Anne‐de‐Bellevue, Canada</affiliation>
<role><roleTerm type="text">author</roleTerm>
</role>
</name>
<name type="personal"><namePart type="given">Yves</namePart>
<namePart type="family">Carrière</namePart>
<affiliation>Department of Entomology, University of Arizona, 410 Forbes Building, AZ, 85721, Tucson, USA</affiliation>
<role><roleTerm type="text">author</roleTerm>
</role>
</name>
<typeOfResource>text</typeOfResource>
<genre type="article" displayLabel="article"></genre>
<originInfo><publisher>Blackwell Publishing Ltd</publisher>
<dateIssued encoding="w3cdtf">2013-10</dateIssued>
<dateCreated encoding="w3cdtf">2013-07-06</dateCreated>
<dateValid encoding="w3cdtf">2013-06-11</dateValid>
<copyrightDate encoding="w3cdtf">2013</copyrightDate>
</originInfo>
<language><languageTerm type="code" authority="rfc3066">en</languageTerm>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
</language>
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</physicalDescription>
<abstract>Landscape composition plays an important, but poorly understood, role in the population dynamics of agricultural pest species with broad host ranges including both crops and weeds. One such pest, the generalist plant bug Lygus hesperus Knight (Hemiptera: Miridae), is a key cotton pest that feeds on various hosts differing in quality in California's San Joaquin Valley (USA). We investigated the effects of 15 common crops and uncultivated agricultural land on L. hesperus populations, by correlating the densities of L. hesperus in focal cotton fields with the areas of the 16 crops in surrounding rings. Insect counts were provided by private pest‐control advisors, and spatial data were obtained from Kern County records. We first calculated Spearman's partial correlation coefficients on an annual basis for each crop separately, and then performed a meta‐analysis of these correlations across years to describe the overall effect of a particular crop on L. hesperus after the effects of the 15 other crops are removed. Consistent with studies conducted in other areas, L. hesperus density was positively correlated with safflower, and negatively with cotton. Lygus hesperus density was also correlated with several other crops that are often not considered in pest management, including grape, oat, and onion (positive correlations), and almond, pistachio, and potato (negative correlations). Lygus hesperus density was also found to be negatively correlated with alfalfa and positively correlated with uncultivated habitats, a relationship that receives mixed support in the literature. Several other crops tested were not significantly correlated with L. hesperus densities in focal cotton fields, suggesting a neutral role for them in L. hesperus dynamics. The improved understanding of the effects of a greater variety of crops on L. hesperus population dynamics will be useful in the design of agricultural landscapes for enhanced management of this important polyphagous pest.</abstract>
<note type="funding">USDA - No. ARZT‐358320‐G‐30‐505; </note>
<subject><genre>keywords</genre>
<topic>correlative methods</topic>
<topic>crop hosts</topic>
<topic>landscape composition</topic>
<topic>large survey data sets</topic>
<topic>Lygus hesperus</topic>
<topic>meta‐analysis</topic>
<topic>Hemiptera</topic>
<topic>Miridae</topic>
<topic>cotton</topic>
<topic>Malvaceae</topic>
</subject>
<relatedItem type="host"><titleInfo><title>Entomologia Experimentalis et Applicata</title>
</titleInfo>
<titleInfo type="abbreviated"><title>Entomol Exp Appl</title>
</titleInfo>
<genre type="journal">journal</genre>
<subject><genre>article-category</genre>
<topic>Original Article</topic>
</subject>
<identifier type="ISSN">0013-8703</identifier>
<identifier type="eISSN">1570-7458</identifier>
<identifier type="DOI">10.1111/(ISSN)1570-7458</identifier>
<identifier type="PublisherID">EEA</identifier>
<part><date>2013</date>
<detail type="volume"><caption>vol.</caption>
<number>149</number>
</detail>
<detail type="issue"><caption>no.</caption>
<number>1</number>
</detail>
<extent unit="pages"><start>11</start>
<end>21</end>
<total>11</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">17BD4B8509D2D04A4B247484AE8E029821BDC229</identifier>
<identifier type="DOI">10.1111/eea.12101</identifier>
<identifier type="ArticleID">EEA12101</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Entomologia Experimentalis et Applicata © 2013 The Netherlands Entomological Society© 2013 The Netherlands Entomological Society</accessCondition>
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