SectionsScience Practice Challenge Questions
Science Practice Challenge Questions
37.1 Ecology of Ecosystems
The food web shown below utilizes an arrow pointing from a species feeds on another to indicate the trophic structure of a simplified estuarine ecosystem at the boundary between the ocean and the shore.
- Analyze the interactions among species and indicate primary producers by circling the node in the food web. Identify the primary producers by circling the nodes in the food web.
- Predict quantitatively how free energy availability for a top species such as the one designated as T in the web changes if it feeds directly on S, assuming the abundance of species S is limited only by radiant energy input.
- Consider the consequences of the dietary shift described in B if the abundance of species becomes depleted due to consumption by species T. Under those circumstances refine your analysis of the food web to describe the potential effect on species Q and R.
- Based on the preceding analyses, construct a claim regarding the effect of the structure, in terms of biodiversity and number of interactions among species, on ecosystem stability.