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Great Spotted Cuckoo Fledglings Often Receive Feedings from Other Magpie Adults than Their Foster Parents: Which Magpies Accept to Feed Foreign Cuckoo Fledglings?

Identifieur interne : 000029 ( Pmc/Curation ); précédent : 000028; suivant : 000030

Great Spotted Cuckoo Fledglings Often Receive Feedings from Other Magpie Adults than Their Foster Parents: Which Magpies Accept to Feed Foreign Cuckoo Fledglings?

Auteurs : Manuel Soler [Espagne] ; Tomás Pérez-Contreras [Espagne] ; Juan Diego Ibá Ez-Álamo [Espagne] ; Gianluca Roncalli [Espagne] ; Elena Macías-Sánchez [Espagne] ; Liesbeth De Neve [Espagne, Belgique]

Source :

RBID : PMC:4182665

Abstract

Natural selection penalizes individuals that provide costly parental care to non-relatives. However, feedings to brood-parasitic fledglings by individuals other than their foster parents, although anecdotic, have been commonly observed, also in the great spotted cuckoo (Clamator glandarius) – magpie (Pica pica) system, but this behaviour has never been studied in depth. In a first experiment, we here show that great spotted cuckoo fledglings that were translocated to a distant territory managed to survive. This implies that obtaining food from foreign magpies is a frequent and efficient strategy used by great spotted cuckoo fledglings. A second experiment, in which we presented a stuffed-cuckoo fledgling in magpie territories, showed that adult magpies caring for magpie fledglings responded aggressively in most of the trials and never tried to feed the stuffed cuckoo, whereas magpies that were caring for cuckoo fledglings reacted rarely with aggressive behavior and were sometimes disposed to feed the stuffed cuckoo. In a third experiment we observed feedings to post-fledgling cuckoos by marked adult magpies belonging to four different possibilities with respect to breeding status (i.e. composition of the brood: only cuckoos, only magpies, mixed, or failed breeding attempt). All non-parental feeding events to cuckoos were provided by magpies that were caring only for cuckoo fledglings. These results strongly support the conclusion that cuckoo fledglings that abandon their foster parents get fed by other adult magpies that are currently caring for other cuckoo fledglings. These findings are crucial to understand the co-evolutionary arms race between brood parasites and their hosts because they show that the presence of the host's own nestlings for comparison is likely a key clue to favour the evolution of fledgling discrimination and provide new insights on several relevant points such as learning mechanisms and multiparasitism.


Url:
DOI: 10.1371/journal.pone.0107412
PubMed: 25272009
PubMed Central: 4182665

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PMC:4182665

Le document en format XML

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<p>Natural selection penalizes individuals that provide costly parental care to non-relatives. However, feedings to brood-parasitic fledglings by individuals other than their foster parents, although anecdotic, have been commonly observed, also in the great spotted cuckoo (
<italic>Clamator glandarius</italic>
) – magpie (
<italic>Pica pica</italic>
) system, but this behaviour has never been studied in depth. In a first experiment, we here show that great spotted cuckoo fledglings that were translocated to a distant territory managed to survive. This implies that obtaining food from foreign magpies is a frequent and efficient strategy used by great spotted cuckoo fledglings. A second experiment, in which we presented a stuffed-cuckoo fledgling in magpie territories, showed that adult magpies caring for magpie fledglings responded aggressively in most of the trials and never tried to feed the stuffed cuckoo, whereas magpies that were caring for cuckoo fledglings reacted rarely with aggressive behavior and were sometimes disposed to feed the stuffed cuckoo. In a third experiment we observed feedings to post-fledgling cuckoos by marked adult magpies belonging to four different possibilities with respect to breeding status (i.e. composition of the brood: only cuckoos, only magpies, mixed, or failed breeding attempt). All non-parental feeding events to cuckoos were provided by magpies that were caring only for cuckoo fledglings. These results strongly support the conclusion that cuckoo fledglings that abandon their foster parents get fed by other adult magpies that are currently caring for other cuckoo fledglings. These findings are crucial to understand the co-evolutionary arms race between brood parasites and their hosts because they show that the presence of the host's own nestlings for comparison is likely a key clue to favour the evolution of fledgling discrimination and provide new insights on several relevant points such as learning mechanisms and multiparasitism.</p>
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<journal-id journal-id-type="nlm-ta">PLoS One</journal-id>
<journal-id journal-id-type="iso-abbrev">PLoS ONE</journal-id>
<journal-id journal-id-type="publisher-id">plos</journal-id>
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<journal-title>PLoS ONE</journal-title>
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<issn pub-type="epub">1932-6203</issn>
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<publisher-name>Public Library of Science</publisher-name>
<publisher-loc>San Francisco, USA</publisher-loc>
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<article-meta>
<article-id pub-id-type="pmid">25272009</article-id>
<article-id pub-id-type="pmc">4182665</article-id>
<article-id pub-id-type="publisher-id">PONE-D-14-10325</article-id>
<article-id pub-id-type="doi">10.1371/journal.pone.0107412</article-id>
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<subj-group subj-group-type="heading">
<subject>Research Article</subject>
</subj-group>
<subj-group subj-group-type="Discipline-v2">
<subject>Biology and Life Sciences</subject>
<subj-group>
<subject>Ecology</subject>
<subj-group>
<subject>Evolutionary Ecology</subject>
</subj-group>
</subj-group>
<subj-group>
<subject>Evolutionary Biology</subject>
</subj-group>
<subj-group>
<subject>Psychology</subject>
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<subject>Behavior</subject>
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<subject>Parenting Behavior</subject>
</subj-group>
</subj-group>
</subj-group>
<subj-group>
<subject>Zoology</subject>
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<subject>Animal Behavior</subject>
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</subj-group>
</subj-group>
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<article-title>Great Spotted Cuckoo Fledglings Often Receive Feedings from Other Magpie Adults than Their Foster Parents: Which Magpies Accept to Feed Foreign Cuckoo Fledglings?</article-title>
<alt-title alt-title-type="running-head">Which Magpies Feed Foreign Cuckoo Fledglings?</alt-title>
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<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Soler</surname>
<given-names>Manuel</given-names>
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<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
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<xref ref-type="corresp" rid="cor1">
<sup>*</sup>
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</contrib>
<contrib contrib-type="author">
<name>
<surname>Pérez-Contreras</surname>
<given-names>Tomás</given-names>
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<xref ref-type="aff" rid="aff1">
<sup>1</sup>
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<xref ref-type="aff" rid="aff2">
<sup>2</sup>
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</contrib>
<contrib contrib-type="author">
<name>
<surname>Ibáñez-Álamo</surname>
<given-names>Juan Diego</given-names>
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<xref ref-type="aff" rid="aff1">
<sup>1</sup>
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<name>
<surname>Roncalli</surname>
<given-names>Gianluca</given-names>
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<xref ref-type="aff" rid="aff1">
<sup>1</sup>
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<contrib contrib-type="author">
<name>
<surname>Macías-Sánchez</surname>
<given-names>Elena</given-names>
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<xref ref-type="aff" rid="aff1">
<sup>1</sup>
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<name>
<surname>de Neve</surname>
<given-names>Liesbeth</given-names>
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<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
</contrib>
</contrib-group>
<aff id="aff1">
<label>1</label>
<addr-line>Departamento de Zoología, Facultad de Ciencias, Universidad de Granada, Granada, Spain</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Grupo Coevolución, Unidad Asociada al Consejo Superior de Investigaciones Científicas (CSIC), Universidad de Granada, Granada, Spain</addr-line>
</aff>
<aff id="aff3">
<label>3</label>
<addr-line>Department of Biology, Terrestrial Ecology Unit, Ghent University, Gent, Belgium</addr-line>
</aff>
<contrib-group>
<contrib contrib-type="editor">
<name>
<surname>Roulin</surname>
<given-names>Alexandre</given-names>
</name>
<role>Editor</role>
<xref ref-type="aff" rid="edit1"></xref>
</contrib>
</contrib-group>
<aff id="edit1">
<addr-line>University of Lausanne, Switzerland</addr-line>
</aff>
<author-notes>
<corresp id="cor1">* E-mail:
<email>msoler@ugr.es</email>
</corresp>
<fn fn-type="conflict">
<p>
<bold>Competing Interests: </bold>
The authors have declared that no competing interests exist.</p>
</fn>
<fn fn-type="con">
<p>Conceived and designed the experiments: MS TPC LDN. Performed the experiments: MS TPC JDIA GR EMS LDN. Analyzed the data: MS TPC JDIA GR LDN. Contributed reagents/materials/analysis tools: MS TPC JDIA GR EMS LDN. Wrote the paper: MS TPC JDIA GR EMS LDN.</p>
</fn>
</author-notes>
<pub-date pub-type="collection">
<year>2014</year>
</pub-date>
<pub-date pub-type="epub">
<day>1</day>
<month>10</month>
<year>2014</year>
</pub-date>
<volume>9</volume>
<issue>10</issue>
<elocation-id>e107412</elocation-id>
<history>
<date date-type="received">
<day>11</day>
<month>3</month>
<year>2014</year>
</date>
<date date-type="accepted">
<day>14</day>
<month>8</month>
<year>2014</year>
</date>
</history>
<permissions>
<copyright-year>2014</copyright-year>
<copyright-holder>Soler et al</copyright-holder>
<license>
<license-p>This is an open-access article distributed under the terms of the
<ext-link ext-link-type="uri" xlink:href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution License</ext-link>
, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</license-p>
</license>
</permissions>
<abstract>
<p>Natural selection penalizes individuals that provide costly parental care to non-relatives. However, feedings to brood-parasitic fledglings by individuals other than their foster parents, although anecdotic, have been commonly observed, also in the great spotted cuckoo (
<italic>Clamator glandarius</italic>
) – magpie (
<italic>Pica pica</italic>
) system, but this behaviour has never been studied in depth. In a first experiment, we here show that great spotted cuckoo fledglings that were translocated to a distant territory managed to survive. This implies that obtaining food from foreign magpies is a frequent and efficient strategy used by great spotted cuckoo fledglings. A second experiment, in which we presented a stuffed-cuckoo fledgling in magpie territories, showed that adult magpies caring for magpie fledglings responded aggressively in most of the trials and never tried to feed the stuffed cuckoo, whereas magpies that were caring for cuckoo fledglings reacted rarely with aggressive behavior and were sometimes disposed to feed the stuffed cuckoo. In a third experiment we observed feedings to post-fledgling cuckoos by marked adult magpies belonging to four different possibilities with respect to breeding status (i.e. composition of the brood: only cuckoos, only magpies, mixed, or failed breeding attempt). All non-parental feeding events to cuckoos were provided by magpies that were caring only for cuckoo fledglings. These results strongly support the conclusion that cuckoo fledglings that abandon their foster parents get fed by other adult magpies that are currently caring for other cuckoo fledglings. These findings are crucial to understand the co-evolutionary arms race between brood parasites and their hosts because they show that the presence of the host's own nestlings for comparison is likely a key clue to favour the evolution of fledgling discrimination and provide new insights on several relevant points such as learning mechanisms and multiparasitism.</p>
</abstract>
<funding-group>
<funding-statement>This work was supported by the Spanish Ministerio de Economía y Competitividad/FEDER (research project CGL2011-25634/BOS). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.</funding-statement>
</funding-group>
<counts>
<page-count count="10"></page-count>
</counts>
<custom-meta-group>
<custom-meta id="data-availability">
<meta-name>Data Availability</meta-name>
<meta-value>The authors confirm that all data underlying the findings are fully available without restriction. All data are within the paper and its Supporting Information files.</meta-value>
</custom-meta>
</custom-meta-group>
</article-meta>
<notes>
<title>Data Availability</title>
<p>The authors confirm that all data underlying the findings are fully available without restriction. All data are within the paper and its Supporting Information files.</p>
</notes>
</front>
</pmc>
</record>

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