The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland
Identifieur interne : 001163 ( Istex/Corpus ); précédent : 001162; suivant : 001164The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland
Auteurs : Mark W. Wilson ; Sandra Irwin ; David W. Norriss ; Stephen F. Newton ; Kevin Collins ; Thomas C. Kelly ; John O AlloranSource :
- Ibis [ 0019-1019 ] ; 2009-04.
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Abstract
Hen Harriers Circus cyaneus are threatened across much of their range and their conservation requires appropriate habitat management. The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 2000 and 2005 were used to assess nest‐site selection. The distribution of these nests was compared to distributions of randomly located points to investigate selection at the scale of the nest‐site and landscape. The main nesting habitats selected were pre‐thicket stage of first and, particularly, second rotation plantations, mostly of exotic conifers. There was no evidence that the area of post‐closure plantations negatively affected Hen Harrier nest distribution. There was a positive correlation across study areas between changes in numbers of Hen Harrier nests between 2000 and 2005 and changes in the area of pre‐thicket second rotation plantations over the same period. The overall effect of plantation forests on breeding Hen Harriers in Ireland therefore appears to be positive. However, this study did not consider the effects of plantation habitats on breeding success. Improved grassland was strongly avoided as a nesting habitat. Furthermore, after controlling for the influence of nesting habitat on nest location, landscapes with a high percentage cover of improved grassland were also avoided. Further agricultural intensification of grassland in areas where Hen Harriers breed is likely to have a negative impact on this species. These results are required for the development of management strategies for the conservation of this species.
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DOI: 10.1111/j.1474-919X.2009.00918.x
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Wilson</name><affiliation><mods:affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</mods:affiliation></affiliation><affiliation><mods:affiliation>E-mail: mark.wilson@ucc.ie</mods:affiliation></affiliation></author><author><name sortKey="Irwin, Sandra" sort="Irwin, Sandra" uniqKey="Irwin S" first="Sandra" last="Irwin">Sandra Irwin</name><affiliation><mods:affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</mods:affiliation></affiliation></author><author><name sortKey="Norriss, David W" sort="Norriss, David W" uniqKey="Norriss D" first="David W." last="Norriss">David W. 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The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 2000 and 2005 were used to assess nest‐site selection. The distribution of these nests was compared to distributions of randomly located points to investigate selection at the scale of the nest‐site and landscape. The main nesting habitats selected were pre‐thicket stage of first and, particularly, second rotation plantations, mostly of exotic conifers. There was no evidence that the area of post‐closure plantations negatively affected Hen Harrier nest distribution. There was a positive correlation across study areas between changes in numbers of Hen Harrier nests between 2000 and 2005 and changes in the area of pre‐thicket second rotation plantations over the same period. The overall effect of plantation forests on breeding Hen Harriers in Ireland therefore appears to be positive. However, this study did not consider the effects of plantation habitats on breeding success. Improved grassland was strongly avoided as a nesting habitat. Furthermore, after controlling for the influence of nesting habitat on nest location, landscapes with a high percentage cover of improved grassland were also avoided. Further agricultural intensification of grassland in areas where Hen Harriers breed is likely to have a negative impact on this species. These results are required for the development of management strategies for the conservation of this species.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>MARK W. 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The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 2000 and 2005 were used to assess nest‐site selection. The distribution of these nests was compared to distributions of randomly located points to investigate selection at the scale of the nest‐site and landscape. The main nesting habitats selected were pre‐thicket stage of first and, particularly, second rotation plantations, mostly of exotic conifers. There was no evidence that the area of post‐closure plantations negatively affected Hen Harrier nest distribution. There was a positive correlation across study areas between changes in numbers of Hen Harrier nests between 2000 and 2005 and changes in the area of pre‐thicket second rotation plantations over the same period. The overall effect of plantation forests on breeding Hen Harriers in Ireland therefore appears to be positive. However, this study did not consider the effects of plantation habitats on breeding success. Improved grassland was strongly avoided as a nesting habitat. Furthermore, after controlling for the influence of nesting habitat on nest location, landscapes with a high percentage cover of improved grassland were also avoided. Further agricultural intensification of grassland in areas where Hen Harriers breed is likely to have a negative impact on this species. 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Journal compilation © 2009 British Ornithologists’ Union</p></availability><date>2009</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland</title><author xml:id="author-1"><persName><forename type="first">MARK W.</forename><surname>WILSON</surname></persName><email>mark.wilson@ucc.ie</email><affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</affiliation></author><author xml:id="author-2"><persName><forename type="first">SANDRA</forename><surname>IRWIN</surname></persName><affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</affiliation></author><author xml:id="author-3"><persName><forename type="first">DAVID W.</forename><surname>NORRISS</surname></persName><affiliation>National Parks and Wildlife Service, Department of Environment, Heritage and Local Government, 7 Ely Place, Dublin 2, Ireland</affiliation></author><author xml:id="author-4"><persName><forename type="first">STEPHEN F.</forename><surname>NEWTON</surname></persName><affiliation>BirdWatch Ireland, Rockingham House, Newcastle, Co. 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Tipperary, Ireland</affiliation></author><author xml:id="author-6"><persName><forename type="first">THOMAS C.</forename><surname>KELLY</surname></persName><affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</affiliation></author><author xml:id="author-7"><persName><forename type="first">JOHN</forename><surname>O’HALLORAN</surname></persName><affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</affiliation><affiliation>Environmental Research Institute, University College Cork, Cork, Ireland</affiliation></author></analytic><monogr><title level="j">Ibis</title><idno type="pISSN">0019-1019</idno><idno type="eISSN">1474-919X</idno><idno type="DOI">10.1111/(ISSN)1474-919X</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2009-04"></date><biblScope unit="volume">151</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="332">332</biblScope><biblScope unit="page" to="343">343</biblScope></imprint></monogr><idno type="istex">679C8A287267AF8181ADDE0C324537EF67E4ECBC</idno><idno type="DOI">10.1111/j.1474-919X.2009.00918.x</idno><idno type="ArticleID">IBI918</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2009</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Hen Harriers Circus cyaneus are threatened across much of their range and their conservation requires appropriate habitat management. The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 2000 and 2005 were used to assess nest‐site selection. The distribution of these nests was compared to distributions of randomly located points to investigate selection at the scale of the nest‐site and landscape. The main nesting habitats selected were pre‐thicket stage of first and, particularly, second rotation plantations, mostly of exotic conifers. There was no evidence that the area of post‐closure plantations negatively affected Hen Harrier nest distribution. There was a positive correlation across study areas between changes in numbers of Hen Harrier nests between 2000 and 2005 and changes in the area of pre‐thicket second rotation plantations over the same period. The overall effect of plantation forests on breeding Hen Harriers in Ireland therefore appears to be positive. However, this study did not consider the effects of plantation habitats on breeding success. Improved grassland was strongly avoided as a nesting habitat. Furthermore, after controlling for the influence of nesting habitat on nest location, landscapes with a high percentage cover of improved grassland were also avoided. Further agricultural intensification of grassland in areas where Hen Harriers breed is likely to have a negative impact on this species. These results are required for the development of management strategies for the conservation of this species.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>keywords</head><item><term>commercial forestry</term></item><item><term>conifer plantation</term></item><item><term>conservation</term></item><item><term>grassland</term></item><item><term>habitat selection</term></item><item><term>heath</term></item><item><term>raptors</term></item><item><term>second rotation</term></item><item><term>upland management</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2009-04">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/679C8A287267AF8181ADDE0C324537EF67E4ECBC/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Blackwell Publishing Ltd</publisherName><publisherLoc>Oxford, UK</publisherLoc></publisherInfo><doi origin="wiley" registered="yes">10.1111/(ISSN)1474-919X</doi><issn type="print">0019-1019</issn><issn type="electronic">1474-919X</issn><idGroup><id type="product" value="IBI"></id><id type="publisherDivision" value="ST"></id></idGroup><titleGroup><title type="main" sort="IBIS">Ibis</title></titleGroup></publicationMeta><publicationMeta level="part" position="04002"><doi origin="wiley">10.1111/ibi.2009.151.issue-2</doi><numberingGroup><numbering type="journalVolume" number="151">151</numbering><numbering type="journalIssue" number="2">2</numbering></numberingGroup><coverDate startDate="2009-04">April 2009</coverDate></publicationMeta><publicationMeta level="unit" type="article" position="10" status="forIssue"><doi origin="wiley">10.1111/j.1474-919X.2009.00918.x</doi><idGroup><id type="unit" value="IBI918"></id></idGroup><countGroup><count type="pageTotal" number="12"></count></countGroup><titleGroup><title type="tocHeading1">Nest site selection</title></titleGroup><copyright>© 2009 The Authors. Journal compilation © 2009 British Ornithologists’ Union</copyright><eventGroup><event type="firstOnline" date="2009-03-26"></event><event type="publishedOnlineFinalForm" date="2009-03-26"></event><event type="xmlConverted" agent="Converter:BPG_TO_WML3G version:2.3.16 mode:FullText" date="2010-08-19"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-27"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-24"></event></eventGroup><numberingGroup><numbering type="pageFirst" number="332">332</numbering><numbering type="pageLast" number="343">343</numbering></numberingGroup><correspondenceTo>*Corresponding author.
Email: <email>mark.wilson@ucc.ie</email></correspondenceTo><linkGroup><link type="toTypesetVersion" href="file:IBI.IBI918.pdf"></link></linkGroup></publicationMeta><contentMeta><unparsedEditorialHistory>Received 28 August 2008; revision accepted 3 February 2009.</unparsedEditorialHistory><countGroup><count type="figureTotal" number="5"></count><count type="tableTotal" number="3"></count></countGroup><titleGroup><title type="main">The importance of pre‐thicket conifer plantations for nesting Hen Harriers <i>Circus cyaneus</i> in Ireland</title><title type="shortAuthors"><i>M. W. Wilson</i> et al.</title><title type="short"><i>Hen Harrier habitat selection</i></title></titleGroup><creators><creator creatorRole="author" xml:id="cr1" affiliationRef="#a1" corresponding="yes"><personName><givenNames>MARK W.</givenNames><familyName>WILSON</familyName></personName></creator><creator creatorRole="author" xml:id="cr2" affiliationRef="#a1"><personName><givenNames>SANDRA</givenNames><familyName>IRWIN</familyName></personName></creator><creator creatorRole="author" xml:id="cr3" affiliationRef="#a2"><personName><givenNames>DAVID W.</givenNames><familyName>NORRISS</familyName></personName></creator><creator creatorRole="author" xml:id="cr4" affiliationRef="#a3"><personName><givenNames>STEPHEN F.</givenNames><familyName>NEWTON</familyName></personName></creator><creator creatorRole="author" xml:id="cr5" affiliationRef="#a4"><personName><givenNames>KEVIN</givenNames><familyName>COLLINS</familyName></personName></creator><creator creatorRole="author" xml:id="cr6" affiliationRef="#a1"><personName><givenNames>THOMAS C.</givenNames><familyName>KELLY</familyName></personName></creator><creator creatorRole="author" xml:id="cr7" affiliationRef="#a1 #a5"><personName><givenNames>JOHN</givenNames><familyName>O’HALLORAN</familyName></personName></creator></creators><affiliationGroup><affiliation xml:id="a1" countryCode="IE"><unparsedAffiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</unparsedAffiliation></affiliation><affiliation xml:id="a2" countryCode="IE"><unparsedAffiliation>National Parks and Wildlife Service, Department of Environment, Heritage and Local Government, 7 Ely Place, Dublin 2, Ireland</unparsedAffiliation></affiliation><affiliation xml:id="a3" countryCode="IE"><unparsedAffiliation>BirdWatch Ireland, Rockingham House, Newcastle, Co. Wicklow, Ireland</unparsedAffiliation></affiliation><affiliation xml:id="a4" countryCode="IE"><unparsedAffiliation>Irish Raptor Study Group, Ballygambon, Lisronagh, Clonmel, Co. Tipperary, Ireland</unparsedAffiliation></affiliation><affiliation xml:id="a5" countryCode="IE"><unparsedAffiliation>Environmental Research Institute, University College Cork, Cork, Ireland</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup xml:lang="en"><keyword xml:id="k1">commercial forestry</keyword><keyword xml:id="k2">conifer plantation</keyword><keyword xml:id="k3">conservation</keyword><keyword xml:id="k4">grassland</keyword><keyword xml:id="k5">habitat selection</keyword><keyword xml:id="k6">heath</keyword><keyword xml:id="k7">raptors</keyword><keyword xml:id="k8">second rotation</keyword><keyword xml:id="k9">upland management</keyword></keywordGroup><abstractGroup><abstract type="main" xml:lang="en"><p>Hen Harriers <i>Circus cyaneus</i> are threatened across much of their range and their conservation requires appropriate habitat management. The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 2000 and 2005 were used to assess nest‐site selection. The distribution of these nests was compared to distributions of randomly located points to investigate selection at the scale of the nest‐site and landscape. The main nesting habitats selected were pre‐thicket stage of first and, particularly, second rotation plantations, mostly of exotic conifers. There was no evidence that the area of post‐closure plantations negatively affected Hen Harrier nest distribution. There was a positive correlation across study areas between changes in numbers of Hen Harrier nests between 2000 and 2005 and changes in the area of pre‐thicket second rotation plantations over the same period. The overall effect of plantation forests on breeding Hen Harriers in Ireland therefore appears to be positive. However, this study did not consider the effects of plantation habitats on breeding success. Improved grassland was strongly avoided as a nesting habitat. Furthermore, after controlling for the influence of nesting habitat on nest location, landscapes with a high percentage cover of improved grassland were also avoided. Further agricultural intensification of grassland in areas where Hen Harriers breed is likely to have a negative impact on this species. These results are required for the development of management strategies for the conservation of this species.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>Hen Harrier habitat selection</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>The importance of pre‐thicket conifer plantations for nesting Hen Harriers Circus cyaneus in Ireland</title></titleInfo><name type="personal"><namePart type="given">MARK W.</namePart><namePart type="family">WILSON</namePart><affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</affiliation><affiliation>E-mail: mark.wilson@ucc.ie</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">SANDRA</namePart><namePart type="family">IRWIN</namePart><affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">DAVID W.</namePart><namePart type="family">NORRISS</namePart><affiliation>National Parks and Wildlife Service, Department of Environment, Heritage and Local Government, 7 Ely Place, Dublin 2, Ireland</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">STEPHEN F.</namePart><namePart type="family">NEWTON</namePart><affiliation>BirdWatch Ireland, Rockingham House, Newcastle, Co. Wicklow, Ireland</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">KEVIN</namePart><namePart type="family">COLLINS</namePart><affiliation>Irish Raptor Study Group, Ballygambon, Lisronagh, Clonmel, Co. Tipperary, Ireland</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">THOMAS C.</namePart><namePart type="family">KELLY</namePart><affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">JOHN</namePart><namePart type="family">O’HALLORAN</namePart><affiliation>Department of Zoology, Ecology and Plant Science, University College Cork, Enterprise Centre, Distillery Fields, North Mall, Cork, Ireland</affiliation><affiliation>Environmental Research Institute, University College Cork, Cork, Ireland</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><place><placeTerm type="text">Oxford, UK</placeTerm></place><dateIssued encoding="w3cdtf">2009-04</dateIssued><edition>Received 28 August 2008; revision accepted 3 February 2009.</edition><copyrightDate encoding="w3cdtf">2009</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">5</extent><extent unit="tables">3</extent></physicalDescription><abstract lang="en">Hen Harriers Circus cyaneus are threatened across much of their range and their conservation requires appropriate habitat management. The locations of 148 Hen Harrier nests found in the Republic of Ireland during national breeding surveys in 2000 and 2005 were used to assess nest‐site selection. The distribution of these nests was compared to distributions of randomly located points to investigate selection at the scale of the nest‐site and landscape. The main nesting habitats selected were pre‐thicket stage of first and, particularly, second rotation plantations, mostly of exotic conifers. There was no evidence that the area of post‐closure plantations negatively affected Hen Harrier nest distribution. There was a positive correlation across study areas between changes in numbers of Hen Harrier nests between 2000 and 2005 and changes in the area of pre‐thicket second rotation plantations over the same period. The overall effect of plantation forests on breeding Hen Harriers in Ireland therefore appears to be positive. However, this study did not consider the effects of plantation habitats on breeding success. Improved grassland was strongly avoided as a nesting habitat. Furthermore, after controlling for the influence of nesting habitat on nest location, landscapes with a high percentage cover of improved grassland were also avoided. Further agricultural intensification of grassland in areas where Hen Harriers breed is likely to have a negative impact on this species. These results are required for the development of management strategies for the conservation of this species.</abstract><subject lang="en"><genre>keywords</genre><topic>commercial forestry</topic><topic>conifer plantation</topic><topic>conservation</topic><topic>grassland</topic><topic>habitat selection</topic><topic>heath</topic><topic>raptors</topic><topic>second rotation</topic><topic>upland management</topic></subject><relatedItem type="host"><titleInfo><title>Ibis</title></titleInfo><genre type="journal">journal</genre><identifier type="ISSN">0019-1019</identifier><identifier type="eISSN">1474-919X</identifier><identifier type="DOI">10.1111/(ISSN)1474-919X</identifier><identifier type="PublisherID">IBI</identifier><part><date>2009</date><detail type="volume"><caption>vol.</caption><number>151</number></detail><detail type="issue"><caption>no.</caption><number>2</number></detail><extent unit="pages"><start>332</start><end>343</end><total>12</total></extent></part></relatedItem><identifier type="istex">679C8A287267AF8181ADDE0C324537EF67E4ECBC</identifier><identifier type="DOI">10.1111/j.1474-919X.2009.00918.x</identifier><identifier type="ArticleID">IBI918</identifier><accessCondition type="use and reproduction" contentType="copyright">© 2009 The Authors. 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