Ecology and conservation of a small insular bird population, the Réunion cuckoo-shrike Coracina newtoni
Identifieur interne : 000715 ( Main/Corpus ); précédent : 000714; suivant : 000716Ecology and conservation of a small insular bird population, the Réunion cuckoo-shrike Coracina newtoni
Auteurs : Jean-Marc Thiollay ; Jean-Michel ProbstSource :
- Biological Conservation [ 0006-3207 ] ; 1998.
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Abstract
The Réunion cuckoo-shrike Coracina newtoni is a rare endemic forest bird surviving on Réunion island in the Indian Ocean. Its current population is estimated at 120–150 pairs, restricted within a 16-km2 upland and montane forest area covering a mere 3% of the remaining forest cover of the island. This population has been stable in size and range for at least three decades but it is said to have been more widespread and abundant earlier. Its mountain range is cooler, with higher rainfall and cloud cover and lower prey abundance than the lowlands. Conversely, there are no apparent differences between its forest range and other existing forests, most of them now restricted within the same altitudinal level. It is hypothesized that the species was formerly a mainly lowland forest species which survives in a suboptimal habitat where poor breeding success or survival and lack of more suitable forests prevent it from spreading. Introduced predators, habitat degradation and poaching are additional limiting factors but are unlikely to explain the current status of the Réunion cuckoo-shrike and the difference from that of its Mauritius counterpart Coracina typica. Research guidelines and conservation priorities are suggested, including a feasibility study to establish a second population in the only lowland natural forest patch remaining in Réunion.
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DOI: 10.1016/S0006-3207(98)00062-7
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Its current population is estimated at 120–150 pairs, restricted within a 16-km2 upland and montane forest area covering a mere 3% of the remaining forest cover of the island. This population has been stable in size and range for at least three decades but it is said to have been more widespread and abundant earlier. Its mountain range is cooler, with higher rainfall and cloud cover and lower prey abundance than the lowlands. Conversely, there are no apparent differences between its forest range and other existing forests, most of them now restricted within the same altitudinal level. It is hypothesized that the species was formerly a mainly lowland forest species which survives in a suboptimal habitat where poor breeding success or survival and lack of more suitable forests prevent it from spreading. Introduced predators, habitat degradation and poaching are additional limiting factors but are unlikely to explain the current status of the Réunion cuckoo-shrike and the difference from that of its Mauritius counterpart Coracina typica. Research guidelines and conservation priorities are suggested, including a feasibility study to establish a second population in the only lowland natural forest patch remaining in Réunion. </div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>Jean-Marc Thiollay</name><affiliations><json:string>Laboratoire d'Ecologie, Ecole Normale Supérieure, 46, rue d'Ulm, 75230 Paris Cedex 05, France</json:string></affiliations></json:item><json:item><name>Jean-Michel Probst</name><affiliations><json:string>2, rue Claude Debussy 97490 Saint Clotilde, Réunion, France</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Endemic bird</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Tropical island</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Montane forest</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Conservation</value></json:item></subject><language><json:string>eng</json:string></language><abstract>The Réunion cuckoo-shrike Coracina newtoni is a rare endemic forest bird surviving on Réunion island in the Indian Ocean. Its current population is estimated at 120–150 pairs, restricted within a 16-km2 upland and montane forest area covering a mere 3% of the remaining forest cover of the island. This population has been stable in size and range for at least three decades but it is said to have been more widespread and abundant earlier. Its mountain range is cooler, with higher rainfall and cloud cover and lower prey abundance than the lowlands. Conversely, there are no apparent differences between its forest range and other existing forests, most of them now restricted within the same altitudinal level. It is hypothesized that the species was formerly a mainly lowland forest species which survives in a suboptimal habitat where poor breeding success or survival and lack of more suitable forests prevent it from spreading. Introduced predators, habitat degradation and poaching are additional limiting factors but are unlikely to explain the current status of the Réunion cuckoo-shrike and the difference from that of its Mauritius counterpart Coracina typica. Research guidelines and conservation priorities are suggested, including a feasibility study to establish a second population in the only lowland natural forest patch remaining in Réunion.</abstract><qualityIndicators><score>7.52</score><pdfVersion>1.2</pdfVersion><pdfPageSize>594 x 794 pts</pdfPageSize><refBibsNative>true</refBibsNative><abstractCharCount>1362</abstractCharCount><pdfWordCount>6264</pdfWordCount><pdfCharCount>39129</pdfCharCount><pdfPageCount>10</pdfPageCount><abstractWordCount>210 </abstractWordCount></qualityIndicators><title>Ecology and conservation of a small insular bird population, the Réunion cuckoo-shrike Coracina newtoni</title><pii><json:string>S0006-3207(98)00062-7</json:string></pii><genre></genre><host><volume>87</volume><pii><json:string>S0006-3207(00)X0042-0</json:string></pii><pages><last>200</last><first>191</first></pages><issn><json:string>0006-3207</json:string></issn><issue>2</issue><genre></genre><language><json:string>unknown</json:string></language><title>Biological Conservation</title><publicationDate>1999</publicationDate></host><publicationDate>1998</publicationDate><copyrightDate>1998</copyrightDate><doi><json:string>10.1016/S0006-3207(98)00062-7</json:string></doi><id>D7433A4B604D6362888F9DE89F96E9CA58639246</id><fulltext><json:item><original>true</original><mimetype>application/pdf</mimetype><extension>pdf</extension><uri>https://api.istex.fr/document/D7433A4B604D6362888F9DE89F96E9CA58639246/fulltext/pdf</uri></json:item><json:item><original>false</original><mimetype>application/zip</mimetype><extension>zip</extension><uri>https://api.istex.fr/document/D7433A4B604D6362888F9DE89F96E9CA58639246/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/D7433A4B604D6362888F9DE89F96E9CA58639246/fulltext/tei"><teiHeader type="text"><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Ecology and conservation of a small insular bird population, the Réunion cuckoo-shrike Coracina newtoni</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>Elsevier Science Ltd, ©1998</p></availability><date>1998</date></publicationStmt><notesStmt><note type="content">Fig. 1: Reconstructed distribution of natural vegetation before human colonization of Réunion island.</note><note type="content">Fig. 2: Current distribution of main vegetation types on Réunion island with breeding range of the Réunion cuckoo-shrike (black).</note><note type="content">Table 1: Réunion cuckoo-shrike population censused on two contiguous 1-km2 sample squares during the 1995–1996 breeding season. Each square is covered by a single forest type</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Ecology and conservation of a small insular bird population, the Réunion cuckoo-shrike Coracina newtoni</title><author><persName><forename type="first">Jean-Marc</forename><surname>Thiollay</surname></persName><note type="correspondence"><p>Corresponding author. Fax: (33)-01-44-32-38-85; e-mail: thiollay@biologie.ens.fr</p></note><affiliation>Laboratoire d'Ecologie, Ecole Normale Supérieure, 46, rue d'Ulm, 75230 Paris Cedex 05, France</affiliation></author><author><persName><forename type="first">Jean-Michel</forename><surname>Probst</surname></persName><affiliation>2, rue Claude Debussy 97490 Saint Clotilde, Réunion, France</affiliation></author></analytic><monogr><title level="j">Biological Conservation</title><title level="j" type="abbrev">BIOC</title><idno type="pISSN">0006-3207</idno><idno type="PII">S0006-3207(00)X0042-0</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1998"></date><biblScope unit="vol">87</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="191">191</biblScope><biblScope unit="page" to="200">200</biblScope></imprint></monogr><idno type="istex">D7433A4B604D6362888F9DE89F96E9CA58639246</idno><idno type="DOI">10.1016/S0006-3207(98)00062-7</idno><idno type="PII">S0006-3207(98)00062-7</idno><idno type="ArticleID">990</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1998</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>The Réunion cuckoo-shrike Coracina newtoni is a rare endemic forest bird surviving on Réunion island in the Indian Ocean. Its current population is estimated at 120–150 pairs, restricted within a 16-km2 upland and montane forest area covering a mere 3% of the remaining forest cover of the island. This population has been stable in size and range for at least three decades but it is said to have been more widespread and abundant earlier. Its mountain range is cooler, with higher rainfall and cloud cover and lower prey abundance than the lowlands. Conversely, there are no apparent differences between its forest range and other existing forests, most of them now restricted within the same altitudinal level. It is hypothesized that the species was formerly a mainly lowland forest species which survives in a suboptimal habitat where poor breeding success or survival and lack of more suitable forests prevent it from spreading. Introduced predators, habitat degradation and poaching are additional limiting factors but are unlikely to explain the current status of the Réunion cuckoo-shrike and the difference from that of its Mauritius counterpart Coracina typica. Research guidelines and conservation priorities are suggested, including a feasibility study to establish a second population in the only lowland natural forest patch remaining in Réunion.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Keywords</head><item><term>Endemic bird</term></item><item><term>Tropical island</term></item><item><term>Montane forest</term></item><item><term>Conservation</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1997-09-29">Received</change><change when="1998-05-05">Registration</change><change when="1998-04-25">Modified</change><change when="1998">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/D7433A4B604D6362888F9DE89F96E9CA58639246/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: ce:floats; body; tail"><istex:xmlDeclaration>version="1.0" encoding="UTF-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"><istex:entity SYSTEM="gr1" NDATA="IMAGE" name="gr1"></istex:entity><istex:entity SYSTEM="gr2" NDATA="IMAGE" name="gr2"></istex:entity></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla" xml:lang="en"><item-info><jid>BIOC</jid><aid>990</aid><ce:pii>S0006-3207(98)00062-7</ce:pii><ce:doi>10.1016/S0006-3207(98)00062-7</ce:doi><ce:copyright year="1998" type="full-transfer">Elsevier Science Ltd</ce:copyright></item-info><head><ce:title>Ecology and conservation of a small insular bird population, the Réunion cuckoo-shrike <ce:italic>Coracina newtoni</ce:italic></ce:title><ce:author-group><ce:author><ce:given-name>Jean-Marc</ce:given-name><ce:surname>Thiollay</ce:surname><ce:cross-ref refid="AFF1">a</ce:cross-ref><ce:cross-ref refid="CORR1">*</ce:cross-ref></ce:author><ce:author><ce:given-name>Jean-Michel</ce:given-name><ce:surname>Probst</ce:surname><ce:cross-ref refid="AFF2">b</ce:cross-ref></ce:author><ce:affiliation id="AFF1"><ce:label>a</ce:label><ce:textfn>Laboratoire d'Ecologie, Ecole Normale Supérieure, 46, rue d'Ulm, 75230 Paris Cedex 05, France</ce:textfn></ce:affiliation><ce:affiliation id="AFF2"><ce:label>b</ce:label><ce:textfn>2, rue Claude Debussy 97490 Saint Clotilde, Réunion, France</ce:textfn></ce:affiliation><ce:correspondence id="CORR1"><ce:label>*</ce:label><ce:text>Corresponding author. Fax: (33)-01-44-32-38-85; e-mail: thiollay@biologie.ens.fr</ce:text></ce:correspondence></ce:author-group><ce:date-received day="29" month="9" year="1997"></ce:date-received><ce:date-revised day="25" month="4" year="1998"></ce:date-revised><ce:date-accepted day="5" month="5" year="1998"></ce:date-accepted><ce:abstract class="author"><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para view="all" id="simple-para.0025">The Réunion cuckoo-shrike <ce:italic>Coracina newtoni</ce:italic> is a rare endemic forest bird surviving on Réunion island in the Indian Ocean. Its current population is estimated at 120–150 pairs, restricted within a 16-km<ce:sup loc="post">2</ce:sup> upland and montane forest area covering a mere 3% of the remaining forest cover of the island. This population has been stable in size and range for at least three decades but it is said to have been more widespread and abundant earlier. Its mountain range is cooler, with higher rainfall and cloud cover and lower prey abundance than the lowlands. Conversely, there are no apparent differences between its forest range and other existing forests, most of them now restricted within the same altitudinal level. It is hypothesized that the species was formerly a mainly lowland forest species which survives in a suboptimal habitat where poor breeding success or survival and lack of more suitable forests prevent it from spreading. Introduced predators, habitat degradation and poaching are additional limiting factors but are unlikely to explain the current status of the Réunion cuckoo-shrike and the difference from that of its Mauritius counterpart <ce:italic>Coracina typica</ce:italic>. Research guidelines and conservation priorities are suggested, including a feasibility study to establish a second population in the only lowland natural forest patch remaining in Réunion.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:keywords class="keyword"><ce:section-title>Keywords</ce:section-title><ce:keyword><ce:text>Endemic bird</ce:text></ce:keyword><ce:keyword><ce:text>Tropical island</ce:text></ce:keyword><ce:keyword><ce:text>Montane forest</ce:text></ce:keyword><ce:keyword><ce:text>Conservation</ce:text></ce:keyword></ce:keywords></head></converted-article></istex:document></istex:metadataXml><!--Version 3.6 générée le 14-10-2015--><mods version="3.6"><titleInfo lang="en"><title>Ecology and conservation of a small insular bird population, the Réunion cuckoo-shrike Coracina newtoni</title></titleInfo><titleInfo type="alternative" lang="en" contentType="CDATA"><title>Ecology and conservation of a small insular bird population, the Réunion cuckoo-shrike Coracina newtoni</title></titleInfo><name type="personal"><namePart type="given">Jean-Marc</namePart><namePart type="family">Thiollay</namePart><affiliation>Laboratoire d'Ecologie, Ecole Normale Supérieure, 46, rue d'Ulm, 75230 Paris Cedex 05, France</affiliation><description>Corresponding author. Fax: (33)-01-44-32-38-85; e-mail: thiollay@biologie.ens.fr</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Jean-Michel</namePart><namePart type="family">Probst</namePart><affiliation>2, rue Claude Debussy 97490 Saint Clotilde, Réunion, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1998</dateIssued><dateCaptured encoding="w3cdtf">1997-09-29</dateCaptured><dateValid encoding="w3cdtf">1998-05-05</dateValid><dateModified encoding="w3cdtf">1998-04-25</dateModified><copyrightDate encoding="w3cdtf">1998</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">The Réunion cuckoo-shrike Coracina newtoni is a rare endemic forest bird surviving on Réunion island in the Indian Ocean. Its current population is estimated at 120–150 pairs, restricted within a 16-km2 upland and montane forest area covering a mere 3% of the remaining forest cover of the island. This population has been stable in size and range for at least three decades but it is said to have been more widespread and abundant earlier. Its mountain range is cooler, with higher rainfall and cloud cover and lower prey abundance than the lowlands. Conversely, there are no apparent differences between its forest range and other existing forests, most of them now restricted within the same altitudinal level. It is hypothesized that the species was formerly a mainly lowland forest species which survives in a suboptimal habitat where poor breeding success or survival and lack of more suitable forests prevent it from spreading. Introduced predators, habitat degradation and poaching are additional limiting factors but are unlikely to explain the current status of the Réunion cuckoo-shrike and the difference from that of its Mauritius counterpart Coracina typica. Research guidelines and conservation priorities are suggested, including a feasibility study to establish a second population in the only lowland natural forest patch remaining in Réunion. </abstract><note type="content">Fig. 1: Reconstructed distribution of natural vegetation before human colonization of Réunion island.</note><note type="content">Fig. 2: Current distribution of main vegetation types on Réunion island with breeding range of the Réunion cuckoo-shrike (black).</note><note type="content">Table 1: Réunion cuckoo-shrike population censused on two contiguous 1-km2 sample squares during the 1995–1996 breeding season. Each square is covered by a single forest type</note><subject lang="en"><genre>Keywords</genre><topic>Endemic bird</topic><topic>Tropical island</topic><topic>Montane forest</topic><topic>Conservation</topic></subject><relatedItem type="host"><titleInfo><title>Biological Conservation</title></titleInfo><titleInfo type="abbreviated"><title>BIOC</title></titleInfo><originInfo><dateIssued encoding="w3cdtf">199902</dateIssued></originInfo><identifier type="ISSN">0006-3207</identifier><identifier type="PII">S0006-3207(00)X0042-0</identifier><part><date>1998</date><detail type="volume"><number>87</number><caption>vol.</caption></detail><detail type="issue"><number>2</number><caption>no.</caption></detail><extent unit="issue pages"><start>155</start><end>276</end></extent><extent unit="pages"><start>191</start><end>200</end></extent></part></relatedItem><identifier type="istex">D7433A4B604D6362888F9DE89F96E9CA58639246</identifier><identifier type="DOI">10.1016/S0006-3207(98)00062-7</identifier><identifier type="PII">S0006-3207(98)00062-7</identifier><identifier type="ArticleID">990</identifier><recordInfo><recordOrigin>ELSEVIER</recordOrigin><recordContentSource>Elsevier Science Ltd, ©1998</recordContentSource></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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