What is the optimal foraging theory? How does it apply to plants and animals? Ho
ID: 214828 • Letter: W
Question
What is the optimal foraging theory? How does it apply to plants and animals? How does it relate to the principle of allocation? Understand the three food density and animal response curves. What is the relationship between the number of predators in an ecosystem and the overall species diversity of that system? What are strong interactions? How do they affect food web structure? What are keystone species? Describe the general relationship between biomass and keystones. What are some ways to make studying complex food webs easier? How can non-native species become keystone species? What are some of the consequences of a particular non-native species on the food web of the site it is introduced to? Explain how pollution in an ecosystem bioaccumulates? What are the consequences of bioaccumulation and biomagnification?Explanation / Answer
Answer:- optimal foraging theory postulates how an animal behaves during search for food. As per this model organism develop best strategy to acheive its goal of food . This strategey or foraging pattern is selected by natural selection during the course of evolution to increase organisms fitness.
Answer:- Predators regulate the over all diversity of ecosystems as shown by Robert paine in his experiment on starfish pisaster (keystone species) showed that diversity decreased when starfish was removed from the shore and bivalve mytilus dominated the shore.
Answers:- Keystone species are those species which play an important role in the functioning and regulation of an ecosystem even though of their low biomass . Ecosystems would cease to function without keystone species for example Pisaster , corals or beavers etc.
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