Detritivory and the stoichiometry of nutrient cycling by a dominant fish species in lakes of varying productivity
Article Abstract:
Stoichiometric relations in an omnivorous/detritivorous fish, gizzard shad, their food resources, and their excreta were tested in three lakes that differed in productivity. It was observed that the ratio at which gizzard shad excreted nutrients was relatively constant among lakes, and appears to be driven by stoichiometric constraints, in particular the relative imbalances between nutrients ingested and sequestered in fish bodies.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2006
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Are you what you eat? Physiological constraints on organismal stoichiometry in an elementally imbalanced world
Article Abstract:
The effect of resource imbalance that affects the three basic physiological processes common to all organisms, such as, elemental uptake, incorporation, and release, is considered. The review shows the importance that organism elemental homeostasis plays in determining the types of physiological processes used to acquire, assemble, store, and release biogenic elements, which are found in widely varying ratios in the environment.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2005
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A conceptual framework for ecosystem stoichiometry: Balancing resource supply and demand
Article Abstract:
The development of ecological stoichiometry has centered on organisms and their interactions, with less emphasis on the meaning or value of a comprehensive ecosystem stoichiometry at larger scales. A conceptual framework that relates internal processes and exogenous factors in spatially and temporally linked ecosystems is developed.
Publication Name: Oikos
Subject: Environmental issues
ISSN: 0030-1299
Year: 2005
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