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| Description: Communities experience many types of disturbance Removal of keystone species, spread of invasive species, natural disturbances Human impacts cause major changes * Resistance = community of organisms resists change and remains stable despite the disturbance * Resilience = a community changes in response to a disturbance, but later returns to its original state * Succession = the predictable series of changes in a community following a disturbance ** Primary succession = disturbance eliminates all vegetation and/or soil life ** Secondary succession = a disturbance dramatically alters, but does not destroy, all local organisms Primary succession: Glaciers, drying lakes, volcanic lava Pioneer species = the first species to arrive in a primary succession area (ex, lichens) Picture Stats: Views: 277 Filesize: 233.7kB Height: 802 Width: 707 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=35677 |