BIO120H1 Lecture Notes - Lecture 9: Climax Community, Pioneer Species, Secondary Succession
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BIO120H1 Full Course Notes
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*change in community comp over time = succession: community comp changes because of succession, this change that can be influenced by environ, abiotic factors, biotic interactions, and dispersal. Exploited by humans with manipulation of habitat to promote abundance of certain plant/animal species for our benefit. Defined laws of underlying the patterns in community change. Basic idea = plant communities of different ages in sand dunes reflected how communities changed over time. Used the chronosequence approach to better understand succession. Succession is categorized into 2 types, based on properties of habitat where they happen: primary succession: colonization of habits devoid of life, happens in new habitats with no vegetation. New lands made by things that make species colonize are from outside: volcanism, dune and barrier island forms, glaciation. Rate tends to be slow cause of arduous process of soil development: secondary succession: reestablishment of a community where most, but not all, orgs are destroyed.
