Disparate effects of plant genotypic diversity on foliage and litter arthropod communities

Journal Article · Tue Jan 01 04:00:00 EST 2008 · Oecologia

DOI:https://doi.org/10.1007/s00442-008-1130-y· OSTI ID:939643

Crutsinger, Greg ^[1]; Reynolds, Nicholas ^[1]; Classen, Aimee T ^[2]; Sanders, Dr. Nathan James ^[1]

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1. University of Tennessee, Knoxville (UTK)
2. ORNL

Intraspecific diversity within plant species is increasingly recognized as an important influence on the structure of associated arthropod communities, though whether there are congruent responses of above- and belowground communities to intraspecific diversity remains unclear. In this study, we compare 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 influence on litter-based microarthropods. Furthermore, host-plant genotypic diversity was positively related to the abundance and diversity of foliage-based arthropods, including herbivore and predator trophic levels. In contrast, there were minimal effects of genotypic diversity in litter on microarthropods. Our study illustrates that incorporating both above- and belowground perspective into community genetics studies leads to very different conclusions about the importance of intraspecific diversity, than when considering aboveground responses in isolation.

• Research Organization: Oak Ridge National Laboratory (ORNL); Oak Ridge National Environmental Research Park
• Sponsoring Organization: ORNL LDRD Director's R&D; SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 939643
• Journal Information: Oecologia, Journal Name: Oecologia Journal Issue: 1 Vol. 158; ISSN OECOBX; ISSN 0029-8549
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
ABUNDANCE
ARTHROPODS
COMMUNITIES
Community genetics
GENETICS
GENOTYPE
LEAVES
PLANT TISSUES
Solidago altissima
decomposition
genotypic diversity
herbivores
host plant
leaf litter
microarthropods