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12 Cards in this Set
- Front
- Back
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What is carrying capacity |
The carrying capacity of a biological species in an environment is the maximum population size of the species that the environment can sustain indefinitely |
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Carrying Capacity is determined by |
•Ecological Constraints •Human choices |
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Carrying Capacity Negatives |
•K is not static •Human choices not captured in biological definition •Predictions about the future of a complex system is inherently difficult •We have a limited understanding of all the resource components and their interactions •Calculations require massive assumptions about the future influence of technology •Predictions are associated with large uncertainty which makes it difficult to use them for planning |
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What is Biocapacity |
Represents the planets current biologically productive areas . Areas that provide resources and can absorb waste |
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What is Ecological Footprint ? |
Describes how much land and water area a population requires to produce the resource it consumes and to absorb its C02 emission human demand on nature capital |
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What is Global Overshoot |
Occurs when humamitys demand on nature exceeds the biosphere's supply or rengenerative capacity |
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What is Earths Overshoot day |
The calendar day , on which we used up the ecological resources and services that nature can regenerate in one year. |
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Positive of Ecological Footprint |
Accounting system that does not require any assumptions regarding future . |
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Negative of Ecological Footprint |
Method relies on accurate assessments of ecosystem functions, which vary spatially and are in state of continual change . |
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Resilience |
Resilence is the capacity of a system to absorb shocks and remain with in the current state and maintain integrity. |
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Postives about Planetary Boundaries |
Adaptive approach that acknowledges non-limited predictability of system and focuses on resilence by investing in
- Ability of socail and ecological systems to withstand shocks
- ability to rise after crisis
- ability to adapt to unavoidable change |
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Negative on Planetary Boundaries |
Precautionary perspective |
