VCE Environmental Science Practice Questions - VCE Environmental Science Units 3 & 4 (VCAA) Exam

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A highway construction project fragments a continuous temperate forest into small, isolated remnants. Which ecological consequence is most likely to occur along the borders of these fragments?

An increase in edge effects leading to microclimate alterations, elevated wind exposure, and increased invasion by opportunistic weed species. A decrease in total perimeter length relative to forest area, reducing predator penetration into the core habitat. An increase in core habitat availability, benefiting deep-forest specialist bird species. A complete cessation of seed dispersal due to the elimination of all soil invertebrates.

Correct Answer:

An increase in edge effects leading to microclimate alterations, elevated wind exposure, and increased invasion by opportunistic weed species.

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