How can the existence of inverted pyramids of biomass be explained?
In the inverted pyramid, the primary producers reproduce quickly and are eaten quickly, so that at any given time, a small population of primary producers exist relative to the heterotroph population. FIGURE 55.13 Trophic cascades. Streams with trout have fewer herbivorous invertebrates and more algae than streams without trout. Why do streams with trout have more algae? Answer: Because the trout eat the invertebrates which graze the algae. With fewer grazers, there is more algae. FIGURE 55.14 Four-level trophic cascades. Streams with large, carnivorous fish have fewer lower- level predators, such as damselflies, more herbivorous insects (exemplified by the number of chironomids, a type of aquatic insect), and lower levels of algae. What might be the effect if snakes that prey on fish were added to the enclosures? Answer: The snakes might reduce the number of fish, which would allow an increase in damselflies, which would reduce the number of chironomids and increase the algae. In othe
Related Questions
- How do you know the people who complained about needing it explained to them are the same ones complaining that the existence of an explanation proves that it sucks?
- What is the value of the Petri plate in microbiology? Why are they cultured inverted?
- How can the existence of inverted pyramids of biomass be explained?
