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Table 2.

Independent and dependent variables that can be used to design leaf-pack experiments. (F) = Functional measure. (S) = Structural measure.

Variables
IndependentDependent
Leaf type Decay rates (F) 
Leaf condition (from tree, ground, or stream) Invertebrates (S) 
Location in stream (pool, riffle, run) Abundance/Diversity 
Time left in stream Microbes (S) 
Presence/absence of invertebrates Abundance/Diversity 
Variables
IndependentDependent
Leaf type Decay rates (F) 
Leaf condition (from tree, ground, or stream) Invertebrates (S) 
Location in stream (pool, riffle, run) Abundance/Diversity 
Time left in stream Microbes (S) 
Presence/absence of invertebrates Abundance/Diversity 
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