Ecological Terms Quiz

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What is the definition of Native and Indigenous species?

Species that are harmful or destructive to natural communities

Species that are intentionally introduced by people

Species that naturally occur or originate in a geographical region (correct)

Species that displace native species and degrade habitats

What is the key difference between Alien and Exotic species?

Alien species are native to the area, while Exotic species are not

Alien species displace native species, while Exotic species spread diseases

Alien species are accidentally released into new areas, while Exotic species are intentionally introduced (correct)

Alien species are always harmful, while Exotic species are not

What defines Nuisance and Noxious species?

Any species that interfere with requirements of people (correct)

Species that are always harmful to natural communities

Species that displace native species and degrade habitats

Species that are native to a geographical region

How are Invasive species defined?

Species capable of causing significant harm to the environment, economy, or society Signup and view all the answers

What are the potential impacts of Invasive marine species?

Displacing native species, degrading habitats, spreading disease, disrupting human activities Signup and view all the answers

How were all invasive non-native species introduced?

By people, either accidentally or on purpose Signup and view all the answers

What are the principal mechanisms of marine algal invasions?

Transportation Signup and view all the answers

Why are native species often unable to compete with invasive species?

Invasive species are often bigger, faster growing, or more aggressive, and may have no natural predators Signup and view all the answers

What are the reported reasons for the increased invasion rates of species into the Baltic Sea?

Intentional introductions, transport via shipping, and intercontinental dispersal via canals Signup and view all the answers

How can algae spread rapidly and grow in the absence of their natural herbivores?

Excessive fishing and the presence of non-native exotic species Signup and view all the answers

What factors influence marine macroalgal invasions?

Abiotic and biotic factors Signup and view all the answers

What may be a major factor controlling the susceptibility of a community to invasion?

Nutrient fluctuations Signup and view all the answers

When does a community become susceptible to invasion according to the study discussed?

When there is an increase in unused resources Signup and view all the answers

In what situations can a community become susceptible to invasion according to the study discussed?

When an invader has a higher resource acquisition rate than the resident, and when the invader has lower maintenance requirements than the resident Signup and view all the answers

What can contribute to the resistance to herbivory?

Abiotic and biotic factors Signup and view all the answers

How can ships contribute to the spread of aquatic organisms?

Ships can carry aquatic organisms in their ballast water, while smaller boats may carry them on their propellers Signup and view all the answers

Ecological Terms Quiz

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