Aboveground competition influences density-dependent effects of cordgrass on sediment biogeochemistry

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dc.contributor.authorWalker, Janet B.
dc.contributor.authorRinehart, Shelby
dc.contributor.authorGreenberg-Pines, Gabriel
dc.contributor.authorWhite, Wendi K.
dc.contributor.authorDeSantiago, Ric
dc.contributor.authorLipson, David A.
dc.contributor.authorLong, Jeremy D.
dc.contributor.otherSan Diego State University
dc.contributor.otherSouthern California Coastal Water Research Project
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.contributor.otherUniversity of British Columbia
dc.contributor.otherUniversity of Massachusetts Boston
dc.contributor.otherUniversity of California Davis
dc.date.accessioned2023-10-02T15:15:07Z
dc.date.available2023-10-02T15:15:07Z
dc.date.issued2022
dc.description.abstractInterspecific interactions between plants influence plant phenotype, distribution, abundance, and community structure. Each of these can, in turn, impact sediment biogeochemistry. Although the population and community level impacts of these interactions have been extensively studied, less is known about their effect on sediment biogeochemistry. This is surprising given that many plants are categorized as foundation species that exert strong control on community structure. In southern California salt marshes, we used clipping experiments to manipulate aboveground neighbor presence to study interactions between two dominant plants, Pacific cordgrass (Spartina foliosa) and perennial pickleweed (Sarcocornia pacifica). We also measured how changes in cordgrass stem density influenced sediment biogeochemistry. Pickleweed suppressed cordgrass stem density but had no effect on aboveground biomass. For every cordgrass stem lost per square meter, porewater ammonium increased 0.3-1.0 mu M. Thus, aboveground competition with pickleweed weakened the effects of cordgrass on sediment biogeochemistry. Predictions about plant-soil feedbacks, especially under future climate scenarios, will be improved when plant-plant interactions are considered, particularly those containing dominant and foundation species.en_US
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.citationWalker, J. B., Rinehart, S., Greenberg‐Pines, G., White, W. K., DeSantiago, R., Lipson, D. A., & Long, J. D. (2022). Aboveground competition influences density‐dependent effects of cordgrass on sediment biogeochemistry. In Ecology and Evolution (Vol. 12, Issue 3). Wiley. https://doi.org/10.1002/ece3.8722
dc.identifier.doi10.1002/ece3.8722
dc.identifier.orcidhttps://orcid.org/0000-0001-9820-1350
dc.identifier.orcidhttps://orcid.org/0000-0001-7735-5879
dc.identifier.urihttps://ir.ua.edu/handle/123456789/12492
dc.languageEnglish
dc.language.isoen_US
dc.publisherWiley
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectecosystem function
dc.subjectinterspecific competition
dc.subjectnitrogen cycling
dc.subjectplant-plant interactions
dc.subjectplant-soil feedbacks
dc.subjectsalt marshes
dc.subjectSALT-MARSH
dc.subjectSPARTINA-ALTERNIFLORA
dc.subjectINTERSPECIFIC COMPETITION
dc.subjectCOMMUNITY STRUCTURE
dc.subjectRELATIVE IMPORTANCE
dc.subjectFIELD EXPERIMENTS
dc.subjectPLANT ZONATION
dc.subjectDIVERSITY
dc.subjectSTABILITY
dc.subjectRESPONSES
dc.subjectEcology
dc.subjectEvolutionary Biology
dc.titleAboveground competition influences density-dependent effects of cordgrass on sediment biogeochemistryen_US
dc.typeArticle
dc.typetext

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