Mollusc grazing limits growth and early development of the old forest lichen Lobaria pulmonaria in broadleaved deciduous forests.
Identifieur interne : 001981 ( Main/Curation ); précédent : 001980; suivant : 001982Mollusc grazing limits growth and early development of the old forest lichen Lobaria pulmonaria in broadleaved deciduous forests.
Auteurs : Johan Asplund [Norvège] ; Yngvar GauslaaSource :
- Oecologia [ 0029-8549 ] ; 2008.
Descripteurs français
- KwdFr :
- MESH :
- croissance et développement : Lichens, Mollusca.
- parasitologie : Arbres, Salix.
- Animaux, Comportement alimentaire, Feuilles de plante, Saisons.
English descriptors
- KwdEn :
- MESH :
- growth & development : Lichens, Mollusca.
- parasitology : Salix, Trees.
- Animals, Feeding Behavior, Plant Leaves, Seasons.
Abstract
THIS STUDY AIMS: (1) to quantify mollusc grazing on juvenile and mature thalli of the foliose epiphytic lichen Lobaria pulmonaria, and (2) to test the hypothesis inferring a herbivore defensive role of lichen depsidones in forests with indigenous populations of lichen-feeding molluscs. Lichens were transplanted in shaded and less shaded positions in each of two calcareous broadleaved deciduous forests, one poor in lichens, one with a rich Lobarion community. Preventing the access of molluscs significantly reduced the loss of juvenile L. pulmonaria, particularly in the naturally lichen-poor forest. Molluscs also severely grazed mature thalli in the lichen-poor forest, especially thalli placed under the more shading canopies. Furthermore, reducing the natural concentration of depsidones by pre-rinsing with acetone increased subsequent grazing significantly, showing that lichen depsidones function as herbivore defence in natural habitats. Our results suggest that mollusc grazing may play important roles in shaping the epiphytic vegetation in calcareous deciduous forests, and that recently established juvenile L. pulmonaria thalli seem to be particularly vulnerable.
DOI: 10.1007/s00442-007-0891-z
PubMed: 17985157
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Box 5003, 1432 As</wicri:regionArea></affiliation></author><author><name sortKey="Gauslaa, Yngvar" sort="Gauslaa, Yngvar" uniqKey="Gauslaa Y" first="Yngvar" last="Gauslaa">Yngvar Gauslaa</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2008">2008</date><idno type="RBID">pubmed:17985157</idno><idno type="pmid">17985157</idno><idno type="doi">10.1007/s00442-007-0891-z</idno><idno type="wicri:Area/Main/Corpus">001981</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">001981</idno><idno type="wicri:Area/Main/Curation">001981</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">001981</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Mollusc grazing limits growth and early development of the old forest lichen Lobaria pulmonaria in broadleaved deciduous forests.</title><author><name sortKey="Asplund, Johan" sort="Asplund, Johan" uniqKey="Asplund J" first="Johan" last="Asplund">Johan Asplund</name><affiliation wicri:level="1"><nlm:affiliation>Department of Ecology and Natural Resource Management, Norwegian University of Life Sciences, P. 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Lichens were transplanted in shaded and less shaded positions in each of two calcareous broadleaved deciduous forests, one poor in lichens, one with a rich Lobarion community. Preventing the access of molluscs significantly reduced the loss of juvenile L. pulmonaria, particularly in the naturally lichen-poor forest. Molluscs also severely grazed mature thalli in the lichen-poor forest, especially thalli placed under the more shading canopies. Furthermore, reducing the natural concentration of depsidones by pre-rinsing with acetone increased subsequent grazing significantly, showing that lichen depsidones function as herbivore defence in natural habitats. Our results suggest that mollusc grazing may play important roles in shaping the epiphytic vegetation in calcareous deciduous forests, and that recently established juvenile L. pulmonaria thalli seem to be particularly vulnerable.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">17985157</PMID><DateCompleted><Year>2008</Year><Month>05</Month><Day>21</Day></DateCompleted><DateRevised><Year>2018</Year><Month>11</Month><Day>13</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">0029-8549</ISSN><JournalIssue CitedMedium="Print"><Volume>155</Volume><Issue>1</Issue><PubDate><Year>2008</Year><Month>Feb</Month></PubDate></JournalIssue><Title>Oecologia</Title><ISOAbbreviation>Oecologia</ISOAbbreviation></Journal><ArticleTitle>Mollusc grazing limits growth and early development of the old forest lichen Lobaria pulmonaria in broadleaved deciduous forests.</ArticleTitle><Pagination><MedlinePgn>93-9</MedlinePgn></Pagination><Abstract><AbstractText>THIS STUDY AIMS: (1) to quantify mollusc grazing on juvenile and mature thalli of the foliose epiphytic lichen Lobaria pulmonaria, and (2) to test the hypothesis inferring a herbivore defensive role of lichen depsidones in forests with indigenous populations of lichen-feeding molluscs. Lichens were transplanted in shaded and less shaded positions in each of two calcareous broadleaved deciduous forests, one poor in lichens, one with a rich Lobarion community. Preventing the access of molluscs significantly reduced the loss of juvenile L. pulmonaria, particularly in the naturally lichen-poor forest. Molluscs also severely grazed mature thalli in the lichen-poor forest, especially thalli placed under the more shading canopies. Furthermore, reducing the natural concentration of depsidones by pre-rinsing with acetone increased subsequent grazing significantly, showing that lichen depsidones function as herbivore defence in natural habitats. 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