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TITLE PAGE - acumen - The University of Alabama

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Figure 2. Mean (±1 SE) macroinvertebrate biomass per g ash-free dry mass (AFDM) <strong>of</strong> leaf litter remaining in litter bags placed in<br />

four cave streams in northeastern <strong>Alabama</strong> and southeastern Tennessee, U.S.A. (a, b) Coarse-mesh litter bags containing maple and<br />

corn litter, respectively. (c, d) Fine-mesh litter bags containing maple and corn litter, respectively. Vertical dashed line separates<br />

incubation periods: left = incubation period 1 (Jan to Jul 2008), right = incubation period 2 (Jul to Dec 2008, or to Jan 2009 for Tony<br />

Sinks Cave).<br />

10<br />

8<br />

a Maple (coarse) b Corn (coarse)<br />

50<br />

40<br />

6<br />

30<br />

Macroinvertebrate biomass<br />

(mg DM litter bag -1 )<br />

4<br />

2<br />

0<br />

30<br />

25<br />

20<br />

15<br />

10<br />

c<br />

Maple (fine)<br />

20<br />

10<br />

0<br />

50<br />

40<br />

30<br />

20<br />

d<br />

Corn (fine)<br />

5<br />

10<br />

0<br />

0<br />

J F M A M J J A S O N D J F J F M A M J J A S O N D J F<br />

Date<br />

Date<br />

Big Mouth Jess Elliot Salt River<br />

Tony Sinks<br />

35

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