Leaf litter degradation in the wave impact zone of a pre-alpine lake

Lade...
Vorschaubild
Dateien
2008_Pabst_etal_Leaf_litter_degradation.pdf
2008_Pabst_etal_Leaf_litter_degradation.pdfGröße: 460.02 KBDownloads: 771
Datum
2008
Autor:innen
Pabst, Simone
Scheifhacken, Nicole
Wantzen, Karl M.
Herausgeber:innen
Kontakt
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
ArXiv-ID
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Open Access Green
Sammlungen
Core Facility der Universität Konstanz
Gesperrt bis
Titel in einer weiteren Sprache
Forschungsvorhaben
Organisationseinheiten
Zeitschriftenheft
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Zusammenfassung

Contrary to streams, decomposition processes of terrestrial leaf litter are still poorly understood in lakes. Here, we examined the decomposition of two leaf species, beech (Fagus sylvatica) and poplar (Populus nigra italica ) in the littoral zone of a large pre-alpine lake at a wave exposed site. We focussed on the shredding impact of benthic invertebrates in a field experiment and on the effects of wave-induced disturbances under field and mesocosm conditions. In contrast to our expectations, benthic shredders did not reveal an important role in leaf processing under the conditions of the field experiment (early spring time, wave impact zone). Strong wave turbulence during storm events significantly reduced leaf mass, FPOM and invertebrate densities at field conditions. Several reasons can explain the low importance of shredders in our field study: (a) phenology of the shredder species, (b) feeding preferences and alternative food sources for gammarids, (c) generally low abundance of the native gammarid species due to the recent occurrence of an invasive predator, (d) disturbance of shredder activity due to high wave impact and (e) relatively low food value of the offered leaves. We suggest that leaf litter decomposition in lakes occurs in specific process domains, which largely depend on the hydraulic characteristics and on water-level fluctuations.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
570 Biowissenschaften, Biologie
Schlagwörter
Decomposition, Leaf hardness, Benthic invertebrates, Aquatic fungi, Hydrodynamics, Mesocosm, Littoral, Ergosterol
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690PABST, Simone, Nicole SCHEIFHACKEN, John HESSELSCHWERDT, Karl M. WANTZEN, 2008. Leaf litter degradation in the wave impact zone of a pre-alpine lake. In: Hydrobiologia. 2008, 613(1), pp. 117-131. ISSN 0018-8158. eISSN 1573-5117. Available under: doi: 10.1007/s10750-008-9477-y
BibTex
@article{Pabst2008litte-8192,
  year={2008},
  doi={10.1007/s10750-008-9477-y},
  title={Leaf litter degradation in the wave impact zone of a pre-alpine lake},
  number={1},
  volume={613},
  issn={0018-8158},
  journal={Hydrobiologia},
  pages={117--131},
  author={Pabst, Simone and Scheifhacken, Nicole and Hesselschwerdt, John and Wantzen, Karl M.}
}
RDF
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:void="http://rdfs.org/ns/void#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/8192">
    <dc:contributor>Scheifhacken, Nicole</dc:contributor>
    <dc:contributor>Hesselschwerdt, John</dc:contributor>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <dc:creator>Hesselschwerdt, John</dc:creator>
    <dc:format>application/pdf</dc:format>
    <dcterms:title>Leaf litter degradation in the wave impact zone of a pre-alpine lake</dcterms:title>
    <dcterms:abstract xml:lang="eng">Contrary to streams, decomposition processes of terrestrial leaf litter are still poorly understood in lakes. Here, we examined the decomposition of two leaf species, beech (Fagus sylvatica) and poplar (Populus nigra  italica ) in the littoral zone of a large pre-alpine lake at a wave exposed site. We focussed on the shredding impact of benthic invertebrates in a field experiment and on the effects of wave-induced disturbances under field and mesocosm conditions. In contrast to our expectations, benthic shredders did not reveal an important role in leaf processing under the conditions of the field experiment (early spring time, wave impact zone). Strong wave turbulence during storm events significantly reduced leaf mass, FPOM and invertebrate densities at field conditions. Several reasons can explain the low importance of shredders in our field study: (a) phenology of the shredder species, (b) feeding preferences and alternative food sources for gammarids, (c) generally low abundance of the native gammarid species due to the recent occurrence of an invasive predator, (d) disturbance of shredder activity due to high wave impact and (e) relatively low food value of the offered leaves. We suggest that leaf litter decomposition in lakes occurs in specific process domains, which largely depend on the hydraulic characteristics and on water-level fluctuations.</dcterms:abstract>
    <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/8192"/>
    <dc:language>eng</dc:language>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:41:18Z</dc:date>
    <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by-nc-nd/2.0/"/>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:issued>2008</dcterms:issued>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/28"/>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:41:18Z</dcterms:available>
    <dc:creator>Wantzen, Karl M.</dc:creator>
    <dc:rights>Attribution-NonCommercial-NoDerivs 2.0 Generic</dc:rights>
    <dc:creator>Pabst, Simone</dc:creator>
    <dc:creator>Scheifhacken, Nicole</dc:creator>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/8192/1/2008_Pabst_etal_Leaf_litter_degradation.pdf"/>
    <dcterms:bibliographicCitation>First publ. in: Hydrobiologia 613 (2008), 1, pp. 117-131</dcterms:bibliographicCitation>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/8192/1/2008_Pabst_etal_Leaf_litter_degradation.pdf"/>
    <dc:contributor>Wantzen, Karl M.</dc:contributor>
    <dc:contributor>Pabst, Simone</dc:contributor>
  </rdf:Description>
</rdf:RDF>
Interner Vermerk
xmlui.Submission.submit.DescribeStep.inputForms.label.kops_note_fromSubmitter
Kontakt
URL der Originalveröffentl.
Prüfdatum der URL
Prüfungsdatum der Dissertation
Finanzierungsart
Kommentar zur Publikation
Allianzlizenz
Corresponding Authors der Uni Konstanz vorhanden
Internationale Co-Autor:innen
Universitätsbibliographie
Ja
Begutachtet
Diese Publikation teilen