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Chapter 6: The Ecology of Parasitism Review of Terms

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Chapter 6: The Ecology of Parasitism Review of Terms

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Questions and Answers

What is the primary factor that determines whether a parasite can successfully infect a host?

The small-scale spatial distribution (habitat use) of the host and parasite

The compatibility filter - whether the host species is resistant or unsuitable for the parasite (correct)

The ecology of the host, such as whether it eats the upstream host

The large-scale spatial distribution of the host and parasite

How can parasites and hosts modify their behavior to influence the encounter filter?

Parasites and hosts cannot modify their behavior to influence the encounter filter

Parasites can try to chase the host, while hosts can try to avoid the parasite (correct)

Hosts can try to open the encounter filter, while parasites can try to close it

Parasites can try to open the encounter filter, while hosts can try to close it

How does host specificity affect the evolution of parasites?

Parasites with high host specificity have evolved a suite of traits to access and grow in many different host species

Parasites with high host specificity have evolved a suite of traits to access and grow in only one host species (correct)

Host specificity does not affect the evolution of parasites

Parasites with low host specificity have evolved a suite of traits to access and grow in many different host species

How can climate change affect the abundance of parasites?

Climate change can cause shifts in parasite abundance by altering both their encounter and compatibility filters Signup and view all the answers

What is the relationship between host specificity and a parasite's ability to access and grow in a host?

Parasites with high host specificity have evolved a suite of traits that help them access and grow in only one host species Signup and view all the answers

What is the relationship between a host species passing both the encounter and compatibility filters, and the evolution of a parasite's traits?

When a host species passes both filters, the parasite has evolved a specialized suite of traits to access and grow in that specific host species Signup and view all the answers

What is the primary reason for the aggregated distribution of parasites across hosts?

Successful parasites weaken the host, making it susceptible to other parasites Signup and view all the answers

Which type of competition occurs when two parasite species indirectly affect each other by exploiting the same host?

Apparent competition Signup and view all the answers

What is the primary factor that regulates parasite population size in a density-dependent manner?

Competition with other parasite species Signup and view all the answers

What is the term used to describe the immunity acquired by a host against a parasite due to a previous or ongoing infection?

Both premunition and concomitant immunity Signup and view all the answers

Which of the following factors determines whether a parasite can ever encounter a potential host?

Encounter filter Signup and view all the answers

What is the term used to describe the role an organism plays in a community?

Niche Signup and view all the answers