EUCALYPT LEAF DECOMPOSITION IN AN INTERMITTENT-STREAM IN SOUTH-EASTERN AUSTRALIA

被引:63
作者
BOULTON, AJ [1 ]
机构
[1] MONASH UNIV, CTR STREAM ECOL, DEPT BOT & ZOOL, CLAYTON, VIC 3168, AUSTRALIA
关键词
LEAF DECOMPOSITION; INTERMITTENT STREAM; MICROBIAL CONDITIONING; FUNCTIONAL FEEDING GROUPS; AUSTRALIA;
D O I
10.1007/BF00037368
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Eucalypt leaf packs were placed at two sites in an intermittent stream during summer to examine the hypothesis that terrestrially-exposed leaf litter accumulates a richer microbial flora than submerged leaves-a phenomenon observed in Canadian temporary vernal pools. This did not occur; during the experiment, microbial biomass (as ATP) rose steadily on submerged leaves but remained low on terrestrially-exposed leaves. Densities of most functional feeding groups on the submerged leaves increased with time. Scrapers appeared to be more important than shredders in eucalypt leaf breakdown at both sites.
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页码:123 / 136
页数:14
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