BIOA02H3 Chapter 55: Chapter 55
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Charles darwin also a p ioneer ing ecologist who understood the nature and complexi ty of the. I n teract ions among a comm un i ty. Com mun it ies are loose assemblages of species. H engry gleason argued t hat plant commun it ies were loose assemblages of species, each of wh ic h was. I n d iv idually d istr ibuted according to i ts un ique in teract ion with the physical env ironment. F reder ick clements argued t hat plant commun it ies were t ig htly in tegrated superorganisms and t hat. Commun it ies in sim i lar env iron ments would have the same species composit ion unless t hey had been. H enry was right ecological commun it ies are not assemblags of organisms t hat move together as un its.