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Three prevailing hypotheses, namely resource availability, ecosystem size, and disturbance, are often used to explain variations in food chain length (FCL). Rivers vary widely in size, resources, and disturbance dimensions, even within the same catchment, providing an ideal platform to test ecological drivers of FCL in aquatic systems. In this study, we tested how resource availability (indicated...
Food chains illustrate the fundamental relationship among different producers and consumers in the natural world. The length of a food chain describes the relationship from primary producers to top predators, and has long been a central concept in community ecology. Many different drivers, including productivity and ecosystem size, explain natural variations in the lengths of food chains. A significant...
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