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Explain when competition will occur within a species (intraspecific) and between two different species (interspecific). Explain Gauseâs competitive exclusion principle (CEP). What was his reasoning for concluding that two species occupying exactly the same niche could not coexist indefinitely ? Species interactions like competition and predation can prevent a species from occupying its fundamental niche. Explain the concept of the realized niche. How does the realized niche of a species compare to its fundamental niche?
What is character displacement, and why does it support the idea that competition affects the reproductive potential of individuals in competing species? Explain the evidence for character displacement in two species of Galapagos finches . Explain how the components of natural selection acting within populations of these two species could result in the apparent character displacement of beak depth observed when they occur together on the same island. To do this assume that when the two species first came together on the same island they exhibited the same overlapping distributions of beak sizes as are now observed on the islands where only one of the species is found. Now ask the question, "Which individuals within the G. fulginosa population had an advantage over other individuals of the same species when the competing species G. fortis was present"? Recall that for G. fulginosa, G. fortis represents an environmental factor. Then use the components of NS to explain how this would result in a decrease in mean beak size in the G. fulginosa population over time. Use the same reasoning to explain the increase in mean beak size in G. fortis.
Explain Connellâs experiments on competition between Balanus and Chthalmus barnacles . Explain the results of removing each species on the distribution of the other and what this indicated about what factor was limiting the distribution of each species. Explain how specialization and resource partitioning allow insectivorous warbler species to coexist
Please answer all the parts!!!1
*
Explain when competition will occur within a species (intraspecific) and between two different species (interspecific). Explain Gauseâs competitive exclusion principle (CEP). What was his reasoning for concluding that two species occupying exactly the same niche could not coexist indefinitely ? Species interactions like competition and predation can prevent a species from occupying its fundamental niche. Explain the concept of the realized niche. How does the realized niche of a species compare to its fundamental niche?
What is character displacement, and why does it support the idea that competition affects the reproductive potential of individuals in competing species? Explain the evidence for character displacement in two species of Galapagos finches . Explain how the components of natural selection acting within populations of these two species could result in the apparent character displacement of beak depth observed when they occur together on the same island. To do this assume that when the two species first came together on the same island they exhibited the same overlapping distributions of beak sizes as are now observed on the islands where only one of the species is found. Now ask the question, "Which individuals within the G. fulginosa population had an advantage over other individuals of the same species when the competing species G. fortis was present"? Recall that for G. fulginosa, G. fortis represents an environmental factor. Then use the components of NS to explain how this would result in a decrease in mean beak size in the G. fulginosa population over time. Use the same reasoning to explain the increase in mean beak size in G. fortis.
Explain Connellâs experiments on competition between Balanus and Chthalmus barnacles . Explain the results of removing each species on the distribution of the other and what this indicated about what factor was limiting the distribution of each species. Explain how specialization and resource partitioning allow insectivorous warbler species to coexist
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