Biology 3445F Lecture Notes - Lecture 18: Time Series, Ecosystem Management, State Space
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O duration: how long a disturbance affects the community (press vs. pulse: frequency: how often a community is disturbed scale: the spatial extent of the impact relative to the size of the landscape. Intensity population of a species that are killed by the disturbance. : the strength of the disruptive forces; typically measured by the proportion of total biomass, or. Hypotheses proposed are mainly concerned with: succession and biodiversity, evolutionary processes, biological invasions, ecosystem functions, productivity in natural communities. The most prominent theory on disturbance, and possibly ecology in general, is the intermediate disturbance. Define: a discrete event in time that disrupts ecosystem, community, and/or population structure and changes substrate and resource availability as well as the physical environment. Types: physical (e. g. fire, ice, too dry, climate), chemical (e. g. Types: physical (e. g. fire, ice, too dry, climate), chemical (e. g. toxic waste), or biological (e. g. Types: physical (e. g. fire, ice, too dry, climate), chemical (e. g. toxic waste), or biological (e. g. predators)
