Cup plant biases community nitrogen composition in response to increasing prairie community diversity

dc.contributor.author Hill, Jacob
dc.contributor.department Natural Resource Ecology and Management
dc.date 2018-02-18T16:38:22.000
dc.date.accessioned 2020-07-07T05:11:48Z
dc.date.available 2020-07-07T05:11:48Z
dc.date.issued 2017-04-11
dc.description.abstract <p>High diversity grassland ecosystems such as Midwestern tallgrass prairies often exhibit increased biomass production and nutrient uptake relative to less diverse ecosystems due to complementarity between species and disproportionate influences of highly productive individual species. This positive empirical relationship between biodiversity and ecosystem function is often applied by land managers concerned with reducing nutrient runoff from agricultural landscapes. By comparing responses of the highly productive forb cup plant (Silphium perfoliatum) and less productive neighboring species to increasing diversity in reconstructed prairie plots, this study sought to understand the mechanisms responsible for such positive relationships between species diversity and ecosystem function in an agricultural context. Nitrogen content of aboveground tissue was measured in leaves of cup plant and neighboring species during and after the growing season. Results suggest that cup plant, when planted at high densities, may override the expected positive influence of species diversity on nitrogen removal by restored prairie communities. These findings indicate that complementarity in resource use and biased effects of the focal species operate simultaneously in prairies restored in agricultural environments. The differential response of co-occurring productive and less productive species are potentially important considerations for restoration projects in agricultural contexts.</p>
dc.identifier archive/lib.dr.iastate.edu/undergradresearch_symposium/2017/presentations/41/
dc.identifier.articleid 1221
dc.identifier.contextkey 10452476
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath undergradresearch_symposium/2017/presentations/41
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/91808
dc.source.bitstream archive/lib.dr.iastate.edu/undergradresearch_symposium/2017/presentations/41/Session_20II.F.1_Hill.pptx|||Sat Jan 15 00:09:53 UTC 2022
dc.subject.disciplines Biodiversity
dc.subject.disciplines Terrestrial and Aquatic Ecology
dc.title Cup plant biases community nitrogen composition in response to increasing prairie community diversity
dc.type event
dc.type.genre event
dspace.entity.type Publication
relation.isOrgUnitOfPublication e87b7b9d-30ea-4978-9fb9-def61b4010ae
thesis.degree.discipline Environmental Science and Biology
File
Original bundle
Now showing 1 - 1 of 1
Name:
Session_20II.F.1_Hill.pptx
Size:
17.82 MB
Format:
Microsoft Powerpoint XML
Description: