期刊
OECOLOGIA
卷 158, 期 1, 页码 65-75出版社
SPRINGER
DOI: 10.1007/s00442-008-1130-y
关键词
community genetics; herbivores; leaf litter; microarthropods; Solidago altissima
类别
资金
- EPA STAR
- NSF Graduate Research
- Department of Ecology and Evolutionary Biology at the University of Tennessee
- Oak Ridge National Laboratory [DE-AC05-00OR22725]
- US Department of Energy [DE-FG02-02ER63366]
Intraspecific diversity can influence the structure of associated communities, though whether litter-based and foliage-based arthropod communities respond to intraspecific diversity in similar ways remains unclear. In this study, we compared the effects of host-plant genotype and genotypic diversity of the perennial plant, Solidago altissima, on the arthropod community associated with living plant tissue (foliage-based community) and microarthropods associated with leaf litter (litter-based community). We found that variation among host-plant genotypes had strong effects on the diversity and composition of foliage-based arthropods, but only weak effects on litter-based microarthropods. Furthermore, host-plant genotypic diversity was positively related to the abundance and diversity of foliage-based arthropods, and within the herbivore and predator trophic levels. In contrast, there were minimal effects of plant genotypic diversity on litter-based microarthropods in any trophic level. Our study illustrates that incorporating communities associated with living foliage and senesced litter into studies of community genetics can lead to very different conclusions about the importance of intraspecific diversity than when only foliage-based community responses are considered in isolation.
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