Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"trophic transfer efficiency"”.
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The influence of spatiotemporal variation in food web models
… stable isotopes of δ13C, δ15N, and δ34S in lower trophic level organisms throughout Lake Erie, establishing an isotopic baseline which could be used to investigate larger spatial trends in food web structure using stable isotopes. Finally, I use the foundational food web structure provided by …
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Zooplankton abundance, community composition and grazing in the James River Estuary (Virginia, USA)
… primary production was directly passed to higher trophic levels. Low grazing rates were attributed to poor food quality owing to the presence of non-algal particulate matter and a predominance of cyanobacteria comprising the phytoplankton community. These findings are consistent with prior studies …
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Dynamik und Energietransfer einer planktischen Crustaceengemeinschaft in Abhängigkeit von der Nahrungsgrundlage und den Planktivoren
… unter mesotrophen Bedingungen die trophische Transfereffizienz vom Phytoplankton zum Crustaceenplankton maximal ist, in einem Ganz-Seen-Experiment zu überprüfen. Die Untersuchungen erfolgten im Rahmen des Projektes "Top-Down-Steuerung planktischer Biozönosen" am mesotrophen Großen …
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Food web regulation under different forcing regimes in shallow lakes
… organisms’ biotic environment, which arises from trophic and non-trophic interactions among them. The trophic interactions between the different groups of organisms form the food web of an ecosystem, with the autotrophic and bacterial production at the basis and potentially several levels of …