Highly specialized species tend to evolve on islands because of the environmental conditions and resource availability.Based on the theory of island biogeography, which of the following would most likely experience the greatest decline of specialist species if an invasive species emigrated from the mainland?ResponsesA small island a far distance from the mainlandA small island a far distance from the mainlandA small island in close proximity to the mainlandA small island in close proximity to the mainlandA large island a far distance from the mainlandA large island a far distance from the mainlandA large island in close proximity to the mainland
Question
Highly specialized species tend to evolve on islands because of the environmental conditions and resource availability.Based on the theory of island biogeography, which of the following would most likely experience the greatest decline of specialist species if an invasive species emigrated from the mainland?ResponsesA small island a far distance from the mainlandA small island a far distance from the mainlandA small island in close proximity to the mainlandA small island in close proximity to the mainlandA large island a far distance from the mainlandA large island a far distance from the mainlandA large island in close proximity to the mainland
Solution
The answer would be "A small island a far distance from the mainland".
Here's the step by step reasoning:
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Small islands have less resources and space, which means there's less room for species to adapt and evolve. This makes them more vulnerable to changes in their environment.
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Islands that are far from the mainland are more isolated, which means they have less chance of receiving new species from the mainland. This isolation allows specialist species to evolve without competition from other species.
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When an invasive species arrives, it can out-compete the specialist species for resources, leading to a decline in the specialist species.
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Therefore, a small, distant island would be the most affected by the arrival of an invasive species from the mainland.
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