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Geography

Which outcome results when insolation decreases in coastal dune ecosystems?

A)Vegetation species richness decreases considerably
B)Transverse dunes progressively become stabilized
C)Barchan dune migration accelerates rapidly
D)Longitudinal dune crests abruptly become undulated

💡 Explanation

Plant colonization slows due to reduced photosynthesis causing a net vegetation productivity decrease because energy via insolation becomes the limiting factor, hence species richness ultimately falls; therefore diversity decreases, rather than dune forms immediately shifting which requires longer term aeolian changes.

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