Calibrating vegetation cover and grassland pollen assemblages in the Flint Hills of Kansas, USA

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dc.contributor.author Commerford, Julie L.
dc.contributor.author McLauchlan, Kendra K.
dc.contributor.author Sugita, Shinya
dc.date.accessioned 2013-09-16T17:02:53Z
dc.date.available 2013-09-16T17:02:53Z
dc.date.issued 2013-07-01
dc.identifier.uri http://hdl.handle.net/2097/16428
dc.description.abstract Grassland cover and composition respond to climate and have undoubtedly changed during the Holocene, but quantitative reconstructions from fossil pollen have been vague about spatial scale and taxon-specific cover. Here, we estimate the relevant source area of pollen for sedimentary basins approximately 50 m in radius, and we report pollen productivity estimates for 12 plant taxa in the tallgrass prairies of central North America. Both relevant source area of pollen and pollen productivity estimates were calculated via the Extended R-Value Model. To obtain these estimates, we collected and quantified the pollen found in surface sediment samples from 24 ponds across the study area. Vegetation was surveyed in the field in a 100 m radius around each pond, and vegetation maps from the Kansas Gap Analysis Project (GAP) were used to a radius of 2 km. Pollen fall speeds were calculated according to Stoke’s Law. Pollen assemblages from basins approximately 50 m in radius have a relevant source area of 1060 m in this grassland landscape. Pollen productivity estimates range from 0.02 to over 30 among the 12 taxa: Artemisia, Ambrosia, Asteraceae, Chenopodiaceae, Cornus, Fabaceae, Juniperus, Maclura, Poaceae, Populus, Quercus, and Salix. Woody taxa generally have higher pollen productivity than herbaceous taxa (except for Chenopodiaceae and Ambrosia). en_US
dc.language.iso en_US en_US
dc.relation.uri http://doi.org/10.4236/ajps.2013.47A1001 en_US
dc.rights This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.uri http://rightsstatements.org/vocab/InC/1.0/
dc.subject Grasslands en_US
dc.subject Pollen en_US
dc.subject Prairie en_US
dc.subject North America en_US
dc.subject Paleoecology en_US
dc.subject Flint Hills en_US
dc.title Calibrating vegetation cover and grassland pollen assemblages in the Flint Hills of Kansas, USA en_US
dc.type Article (publisher version) en_US
dc.date.published 2013 en_US
dc.citation.doi 10.4236/ajps.2013.47A1001 en_US
dc.citation.epage 10 en_US
dc.citation.issue 7A1 en_US
dc.citation.jtitle American Journal of Plant Sciences en_US
dc.citation.spage 1 en_US
dc.citation.volume 4 en_US
dc.contributor.authoreid mclauch en_US


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