Question
An invasive species is one that is not native to a particular ecosystem, but it has the ability to grow, reproduce, and flourish in these new conditions. Invasive species are often introduced to an ecosystem by humans. Many plants were brought over by horticulturalists and they became invasive and dangerous to the natural population over time. If left unchecked, invasive species can lead to the death, and even extinction, of native species.
Question 1
PART A
Which of these characteristics would classify an introduced species as being invasive?
Responses
A they can be grown easilythey can be grown easily
B they have many natural predatorsthey have many natural predators
C they take away resources from native organismsthey take away resources from native organisms
D they tend to not survive well with changes to a new environmentthey tend to not survive well with changes to a new environment
Question 2
PART B
Which of these would not be considered an invasive species?
Responses
A Kudzu is introduced from Japan as an ornamental vine and it spread quickly and utilized many of the resources needed by the local, native trees.Kudzu is introduced from Japan as an ornamental vine and it spread quickly and utilized many of the resources needed by the local, native trees.
B Sciurus carolinensis, common name eastern gray squirrel or grey squirrel depending on region, is a tree squirrel in the genus Sciurus. It is native to eastern North America, where it is the most prodigious and ecologically essential natural forest regenerator.Sciurus carolinensis , common name eastern gray squirrel or grey squirrel depending on region, is a tree squirrel in the genus Sciurus. It is native to eastern North America, where it is the most prodigious and ecologically essential natural forest regenerator.
C In 1946, the Argentinian government imported fifty beavers from Canada, which were to be released in Cami Lake with the intention of creating a commercial fur trading industry. Though a viable industry ultimately failed to materialize, the introduction of the beavers into the region has had far-reaching consequences.In 1946, the Argentinian government imported fifty beavers from Canada, which were to be released in Cami Lake with the intention of creating a commercial fur trading industry. Though a viable industry ultimately failed to materialize, the introduction of the beavers into the region has had far-reaching consequences.
D Shortly after World War II, and before 1952, the brown tree snake was accidentally transported from its native range in the South Pacific to Guam, probably as a stowaway in ship cargo or by crawling into the landing gear of Guam-bound aircraft. As a result of abundant prey resources on Guam and the absence of natural predators outside of feral pigs and mangrove monitors, brown tree snake populations reached unprecedented numbers.
Question 1
PART A
Which of these characteristics would classify an introduced species as being invasive?
Responses
A they can be grown easilythey can be grown easily
B they have many natural predatorsthey have many natural predators
C they take away resources from native organismsthey take away resources from native organisms
D they tend to not survive well with changes to a new environmentthey tend to not survive well with changes to a new environment
Question 2
PART B
Which of these would not be considered an invasive species?
Responses
A Kudzu is introduced from Japan as an ornamental vine and it spread quickly and utilized many of the resources needed by the local, native trees.Kudzu is introduced from Japan as an ornamental vine and it spread quickly and utilized many of the resources needed by the local, native trees.
B Sciurus carolinensis, common name eastern gray squirrel or grey squirrel depending on region, is a tree squirrel in the genus Sciurus. It is native to eastern North America, where it is the most prodigious and ecologically essential natural forest regenerator.Sciurus carolinensis , common name eastern gray squirrel or grey squirrel depending on region, is a tree squirrel in the genus Sciurus. It is native to eastern North America, where it is the most prodigious and ecologically essential natural forest regenerator.
C In 1946, the Argentinian government imported fifty beavers from Canada, which were to be released in Cami Lake with the intention of creating a commercial fur trading industry. Though a viable industry ultimately failed to materialize, the introduction of the beavers into the region has had far-reaching consequences.In 1946, the Argentinian government imported fifty beavers from Canada, which were to be released in Cami Lake with the intention of creating a commercial fur trading industry. Though a viable industry ultimately failed to materialize, the introduction of the beavers into the region has had far-reaching consequences.
D Shortly after World War II, and before 1952, the brown tree snake was accidentally transported from its native range in the South Pacific to Guam, probably as a stowaway in ship cargo or by crawling into the landing gear of Guam-bound aircraft. As a result of abundant prey resources on Guam and the absence of natural predators outside of feral pigs and mangrove monitors, brown tree snake populations reached unprecedented numbers.
Answers
GPT-4o mini
**Question 1 PART A**
The characteristic that would classify an introduced species as being invasive is:
**C they take away resources from native organisms.**
Invasive species disrupt local ecosystems by outcompeting native species for resources such as food, light, and space.
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**Question 2 PART B**
The option that would not be considered an invasive species is:
**B Sciurus carolinensis, common name eastern gray squirrel or grey squirrel depending on region, is a tree squirrel in the genus Sciurus. It is native to eastern North America, where it is the most prodigious and ecologically essential natural forest regenerator.**
This species is native to eastern North America, thus it does not qualify as an invasive species. The other options describe species that were introduced to new environments and caused ecological issues.
The characteristic that would classify an introduced species as being invasive is:
**C they take away resources from native organisms.**
Invasive species disrupt local ecosystems by outcompeting native species for resources such as food, light, and space.
---
**Question 2 PART B**
The option that would not be considered an invasive species is:
**B Sciurus carolinensis, common name eastern gray squirrel or grey squirrel depending on region, is a tree squirrel in the genus Sciurus. It is native to eastern North America, where it is the most prodigious and ecologically essential natural forest regenerator.**
This species is native to eastern North America, thus it does not qualify as an invasive species. The other options describe species that were introduced to new environments and caused ecological issues.