16 Questions
What is the definition of Native and Indigenous species?
Species that naturally occur or originate in a geographical region
What is the key difference between Alien and Exotic species?
Alien species are accidentally released into new areas, while Exotic species are intentionally introduced
What defines Nuisance and Noxious species?
Any species that interfere with requirements of people
How are Invasive species defined?
Species capable of causing significant harm to the environment, economy, or society
What are the potential impacts of Invasive marine species?
Displacing native species, degrading habitats, spreading disease, disrupting human activities
How were all invasive non-native species introduced?
By people, either accidentally or on purpose
What are the principal mechanisms of marine algal invasions?
Transportation
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
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
How can algae spread rapidly and grow in the absence of their natural herbivores?
Excessive fishing and the presence of non-native exotic species
What factors influence marine macroalgal invasions?
Abiotic and biotic factors
What may be a major factor controlling the susceptibility of a community to invasion?
Nutrient fluctuations
When does a community become susceptible to invasion according to the study discussed?
When there is an increase in unused resources
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
What can contribute to the resistance to herbivory?
Abiotic and biotic factors
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
Test your knowledge of ecological terms with this quiz! From native and indigenous species to alien and exotic introductions, and distinguishing between nuisance and noxious species, challenge yourself to see how well you know these important ecological concepts.
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