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Manipulating earthworm abundance using electroshocking in deciduous forests

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dc.contributor.author Szlavecz, Katalin en
dc.contributor.author Pitz, Scott L. en
dc.contributor.author Bernard, Michael J. en
dc.contributor.author Xia, Lijun en
dc.contributor.author O'Neill, John P. en
dc.contributor.author Chang, Chih-Han en
dc.contributor.author McCormick, Melissa K. en
dc.contributor.author Whigham, Dennis F. en
dc.date.accessioned 2013-02-01T16:04:08Z
dc.date.available 2013-02-01T16:04:08Z
dc.date.issued 2013
dc.identifier.citation Szlavecz, Katalin, Pitz, Scott L., Bernard, Michael J., Xia, Lijun, O'Neill, John P., Chang, Chih-Han, McCormick, Melissa K., and Whigham, Dennis F. 2013. "<a href="https://repository.si.edu/handle/10088/19520">Manipulating earthworm abundance using electroshocking in deciduous forests</a>." <em>Pedobiologia</em>. 56 (1):33&ndash;40. <a href="https://doi.org/10.1016/j.pedobi.2012.08.008">https://doi.org/10.1016/j.pedobi.2012.08.008</a> en
dc.identifier.issn 0031-4056
dc.identifier.uri http://hdl.handle.net/10088/19520
dc.description.abstract Summary Earthworms influence the biotic and abiotic characteristics of soils, including the diversity and abundance of bacteria and fungi, some of which form essential mycorrhizal connections with plants. The indirect effects that earthworms have on plants through their impacts on mycorrhiza are poorly understood. To investigate the effect of earthworms on mycorrhizae-tree seedling interactions, we manipulated earthworm densities in 1 m2 enclosures located at 12 study sites within four different-aged forest stands at the Smithsonian Environmental Research Center (SERC) in Maryland, USA. The treatment plots were created by trenching around the perimeter and lining the trenches with fiberglass mesh before backfilling. Two types of untrenched plots served as control and leaf litter treatment plots. Enclosures were electroshocked between four and nine times over a two-year period to remove earthworms and to compare densities among treatment and untrenched plots. Earthworms were weighed and identified to determine whether removal by electroshocking varied depending on body size or ecological grouping. Earthworm abundances were 30-50% lower in reduced-density enclosures than in high density enclosures; however, the efficiency of the exclusion treatments varied by earthworm size and ecological group. Manipulating earthworm populations in temperate forests to assess their influence on ecological functions is feasible using electroshocking, but careful planning is essential given the amount of effort required to set-up and maintain the desired experimental conditions.Keywords: earthworm manipulation, electroshocking, deciduous forests en
dc.relation.ispartof Pedobiologia en
dc.title Manipulating earthworm abundance using electroshocking in deciduous forests en
dc.type Journal Article en
dc.identifier.srbnumber 112944
dc.identifier.doi 10.1016/j.pedobi.2012.08.008
rft.jtitle Pedobiologia
rft.volume 56
rft.issue 1
rft.spage 33
rft.epage 40
dc.description.SIUnit SERC en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 33
dc.citation.epage 40

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