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    <title>Trophic lengthening and its impact on the functional biodiversity of estuarine and brackish ecosystems</title>
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    <namePart>Voß, Maren</namePart>
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  <abstract type="Summary">The collapse of seabird or fish populations often signals disruptions in ecosystems altered by stressors. This dissertation compares food webs in the Elbe and Oder estuaries and the Baltic Sea to illustrate how stressors like eutrophication and turbidity affect food web structures. Stressed food webs elongate, causing energy loss at higher levels, which can lead to population collapse. Changes in nitrogen sources and the rise of microbial systems at the base of the food web are key factors in this trophic lengthening.&lt;eng&gt;</abstract>
  <abstract type="Summary">Der Zusammenbruch von Seevogel- oder Fischpopulationen ist häufig ein Zeichen für Stressor bedingte Störungen in Ökosystemen. In dieser Dissertation werden Nahrungsnetze im Elbe- und Oder Ästuar sowie der Ostsee verglichen, um zu veranschaulichen, wie Stressoren wie Eutrophierung und Trübung die Strukturen von Nahrungsnetzen beeinflussen. Diese Stressoren führen zu Verlängerung der Nahrungsnetze und zum Energieverlust in höheren trophischen Leveln. Veränderungen in den Stickstoffquellen und im mikrobiellen System an der Basis des Nahrungsnetzes sind Schlüsselfaktoren für diese Verlängerung.&lt;ger&gt;</abstract>
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  <note type="statement of responsibility">vorgelegt von Markus Steinkopf</note>
  <note>GutachterInnen: Maren Voss (Leibniz-Institut für Ostseeforschung Warnemünde) ; Agnes Karlsson (Stockholm University)</note>
  <note type="thesis">Dissertation Universität Rostock 2025</note>
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      <title>Trophic lengthening and its impact on the functional biodiversity of estuarine and brackish ecosystems</title>
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    <identifier type="local">(DE-627)1949626881</identifier>
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