BIO120H1 Chapter Notes - Chapter 16: Sea Level Rise, Climax Community, The Climax
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BIO120H1 Full Course Notes
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Document Summary
Agents of change: agents of change act on communities across all temporal and spatial scales, consider coral reef community: over last few decades, might have seen considerable change, both subtle and catastrophic. Species interactions (such as competition, predation, disease) can cause gradual replacement of species over time. Changes in abiotic conditions, such as sea level and water temp, can cause physiological stress, coral bleaching and eventually mortality. Ex, temperature, sea level rise: abiotic and biotic factors interact to produce change in communities. Beavers- cause changes in abiotic conditions that in turn cause species replacement. Can be very slow b/c the first arrivals typically face extremely unhospitable conditions. Multiple methods of succcession were stimulated by lack of scientific consensus: facilitation model: inspired by clements. Describes sitations in which the earliest species modify the env in was that ultimately benefit later species but hinder their own continued dominance.
