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3 Cards in this Set
- Front
- Back
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is predation (+/-) a direct interaction? |
yes and direct interactions can give rise to indirect interactions - predation affects communities directly and indirectly |
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Indeterminacy in food webs - what dies it mean? - 3 reasons |
why we often cannot predict the effects of changes in the abundance of one species on other members of the food web
complexity- there are many many nodes and links time lags - effects don't show up until the interactions flow through many intermediate species unpredictable behavior- trait-mediated interactions, ecology of fear, ecosystem engineering |
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Trophic Cascades |
concept: changes in the abundances of organisms at one trophic level can influence energy flow at multiple trophic levels **invokes indirect effects beyond one trophic level |
