Relationships between Spatial Metrics and Plant Diversity in Constructed Freshwater Wetlands

Title:
Relationships between Spatial Metrics and Plant Diversity in Constructed Freshwater Wetlands
Authors:
Brandt, Erika C.; Petersen, John E.; Grossman, Jake J.; Allen, George A.; Benzing, David H.
Abstract:
The diversity of plant species and their distribution in space are both thought to have important effects on the function of wetland ecosystems. However, knowledge of the relationships between plant species and spatial diversity remains incomplete. In this study, we investigated relationships between spatial pattern and plant species diversity over a five year period following the initial restoration of experimental wetland ecosystems. In 2003, six identical and hydrologically-isolated 0.18 ha wetland "cells" were constructed in former farmland in northeast Ohio. The systems were subjected to planting treatments that resulted in different levels of vascular plant species diversity among cells. Plant species diversity was assessed through annual inventories. Plant spatial pattern was assessed by digitizing low-altitude aerial photographs taken at the same time as the inventories. Diversity metrics derived from the inventories were significantly related to certain spatial metrics derived from the photographs, including cover type diversity and contagion. We found that wetlands with high cover type diversity harbor higher plant species diversity than wetlands with fewer types of patches. We also found significant relationships between plant species diversity and spatial patterning of patch types, but the direction of the effect differed depending on the diversity metric used. Links between diversity and spatial pattern observed in this study suggest that high-resolution aerial imagery may provide wetland scientists with a useful tool for assessing plant diversity.
Citation:
Brandt, E.C., J.E. Petersen, J.J. Grossman, G.A. Allen, and D.H. Benzing. 2015. "Relationships between Spatial Metrics and Plant Diversity in Constructed Freshwater Wetlands." PLoS ONE 10(8): e0135917.
Publisher:
Public Library of Science
DATE ISSUED:
2015-08-21
Department:
Environmental Studies
Type:
Article
PUBLISHED VERSION:
10.1371/journal.pone.0135917
Additional Links:
http://dx.plos.org/10.1371/journal.pone.0135917
PERMANENT LINK:
http://hdl.handle.net/11282/594047

Full metadata record

DC FieldValue Language
dc.contributor.authorBrandt, Erika C.en
dc.contributor.authorPetersen, John E.en
dc.contributor.authorGrossman, Jake J.en
dc.contributor.authorAllen, George A.en
dc.contributor.authorBenzing, David H.en
dc.date.accessioned2016-01-19T13:22:30Zen
dc.date.available2016-01-19T13:22:30Zen
dc.date.issued2015-08-21en
dc.identifier.citationBrandt, E.C., J.E. Petersen, J.J. Grossman, G.A. Allen, and D.H. Benzing. 2015. "Relationships between Spatial Metrics and Plant Diversity in Constructed Freshwater Wetlands." PLoS ONE 10(8): e0135917.en
dc.identifier.issn1932-6203en
dc.identifier.urihttp://hdl.handle.net/11282/594047en
dc.description.abstractThe diversity of plant species and their distribution in space are both thought to have important effects on the function of wetland ecosystems. However, knowledge of the relationships between plant species and spatial diversity remains incomplete. In this study, we investigated relationships between spatial pattern and plant species diversity over a five year period following the initial restoration of experimental wetland ecosystems. In 2003, six identical and hydrologically-isolated 0.18 ha wetland "cells" were constructed in former farmland in northeast Ohio. The systems were subjected to planting treatments that resulted in different levels of vascular plant species diversity among cells. Plant species diversity was assessed through annual inventories. Plant spatial pattern was assessed by digitizing low-altitude aerial photographs taken at the same time as the inventories. Diversity metrics derived from the inventories were significantly related to certain spatial metrics derived from the photographs, including cover type diversity and contagion. We found that wetlands with high cover type diversity harbor higher plant species diversity than wetlands with fewer types of patches. We also found significant relationships between plant species diversity and spatial patterning of patch types, but the direction of the effect differed depending on the diversity metric used. Links between diversity and spatial pattern observed in this study suggest that high-resolution aerial imagery may provide wetland scientists with a useful tool for assessing plant diversity.en
dc.language.isoen_USen
dc.publisherPublic Library of Scienceen
dc.identifier.doi10.1371/journal.pone.0135917en
dc.relation.urlhttp://dx.plos.org/10.1371/journal.pone.0135917en
dc.subject.departmentEnvironmental Studiesen_US
dc.titleRelationships between Spatial Metrics and Plant Diversity in Constructed Freshwater Wetlandsen_US
dc.typeArticleen
dc.identifier.journalPLOS ONEen
dc.subject.keywordFloristic quality assessmenten_US
dc.subject.keywordSpecies richnessen_US
dc.subject.keywordSeine Riveren_US
dc.subject.keywordBiodiversityen_US
dc.subject.keywordHeterogeneityen_US
dc.identifier.volume10en_US
dc.identifier.issue8en_US
dc.rightsArchived with thanks to PLOS ONEen
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