What are the thewo primary reasons for morhpologicl change in G.fortis and G. scandens in the grant study article.
http://bio.classes.ucsc.edu/bioe200b/pdf%20files/Grant_GrantSci2002.pdf
http://bio.classes.ucsc.edu/bioe200b/pdf%20files/Grant_GrantSci2002.pdf
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I skimmed over it and it seems to be temporal change as one, and environmental/shortage of food resource as another.