To draw : A food web and describe the consequences of humans “abstain from eating blue crab” on the food chain. Concept introduction : Food chain is the transfer of food energy from one trophic level to successive trophic levels. In other words, food chain refers to the way an organism obtains food in the ecosystem. The primary producers (plants) are eaten by the herbivores which in turn are eaten by carnivores. The carnivores are further eaten up by the top carnivores. When the organisms die, they are decomposed by the action of decomposers and return back the nutrients to the soil. In this way, food chain continues. The food chain never exists in isolation. The food chains are interconnected to form “food web”.

Question

Want to see the full answer?

Answer 1

Question

Chapter 54, Problem 10TYU

Summary Introduction

To draw: A food web and describe the consequences of humans “abstain from eating blue crab” on the food chain.

Concept introduction: Food chain is the transfer of food energy from one trophic level to successive trophic levels. In other words, food chain refers to the way an organism obtains food in the ecosystem. The primary producers (plants) are eaten by the herbivores which in turn are eaten by carnivores. The carnivores are further eaten up by the top carnivores. When the organisms die, they are decomposed by the action of decomposers and return back the nutrients to the soil. In this way, food chain continues. The food chain never exists in isolation. The food chains are interconnected to form “food web”.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Support this with evidence: In this food web model, plants A, B and C are the autotrophic organisms that serve as the producers of the food web model. The herbivores A, B and C serve as the primary consumers meanwhile the omnivores A and B serve as the secondary consumers of this model. Then, the last level is the top predator. To describe the model formulated, the populations of these organisms, in a particular ecosystem, was recorded over a period of 61 days. It is observed that at Day 0, the plant populations are the highest, which is around 5000. The herbivore populations are found in a range of 2000-3000 and the omnivore populations can be seen to be below 1000. With gradual increase in the number of days, we can see here that the food chain is coming into play. The green plants are being consumed by the herbivores, leading to fluctuations in the plant populations. The herbivores are, in turn, being consumed by the omnivores. We can see that with increasing time, only…

For each of the species appearing in the food web, identify its domain, its kingdom and its role in the food web (producer, consumer 1st order, 2nd order, 3rd order, decomposer). You can do this under tabular form if desired. If certain trophic levels are missing from the diagram, identify them and specify their role. 2. Which population of food web organisms is associated with the highest level of available energy? Briefly explain your reasoning 3. Using a concrete example, make a link between this food web and the biogeochemical cycle of nitrogen 4. Briefly explain how the harbor seal (Phoca vitulina) contributes to the stability of this food web. Your answer must include at least three (3) different types of interactions, intra or interspecific. 5. What keeps the population size of gulls stable if this species has no predators

Based on the food chain shown below, how can unregulated collection of shark fins used in shark fin soup cause the collapse of a coral reef ecosystem? To answer this question, continue the trend in abundance of each species indicated in the graph provided and explain your predicted trends. (PLS ANNOTATE THE GRAPH AS WELL)