Footnote 1
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Footnote 2
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Stephen J. Risch (1981). Insect Herbivore Abundance in Tropical Monocultures and Polycultures: An Experimental Test of Two Hypotheses. Ecology, 62(5), 1325–1340.
doi:10.2307/1937296
https://greener4life.com/blog/monoculture-and-food-security