Chengjin Chu, John Norman, Robert Flynn, Nicole Kaplan, William K. Lauenroth, and Peter B. Adler. 2013. Cover, density, and demographics of shortgrass steppe plants mapped 1997–2010 in permanent grazed and ungrazed quadrats. Ecology 94:1435. http://dx.doi.org/10.1890/13-0121.1


Data Paper

Ecological Archives E094-128-D1.

Copyright


Authors
Data Files
Abstract
Metadata


Author(s)

Chengjin Chu
Department of Wildland Resources and the Ecology Center
Utah State University
Logan, UT 84322-5230 USA

John Norman
USDA-NRCS MLRA Soils Project
1170 Campus Delivery
Colorado State University
Fort Collins, CO 80523 USA

Robert Flynn
Shortgrass Steppe-LTER
1499 Campus Delivery
Colorado State University
Fort Collins, CO 80523 USA

Nicole Kaplan
Shortgrass Steppe-LTER
1499 Campus Delivery
Colorado State University
Fort Collins, CO 80523 USA

William K. Lauenroth
Department of Botany
University of Wyoming
Laramie, WY 82070 USA

Peter B. Adler
Department of Wildland Resources and the Ecology Center
Utah State University
Logan, UT 84322-5230 USA
Corresponding author. E-mail: peter.adler@usu.edu


Data Files

allrecords_density.csv (MD5: a402cf1e63f2d7f141c233553375430a)

allrecords_cover.csv (MD5: d03e1ed92c34cb02656b7bc1f419addb)

quad_inventory.csv (MD5: 2a48e9b26527feb44976703065bab3f8)

quad_info.csv (MD5: cf6a9ea425049e5892b6fe679d51df91)

quad_stocking_rate.csv (MD5: 9c4bfc65ea924777b7ccfa8e1fa80a4a)

daily_climate_data.csv (MD5: 8f28d4b6c636f720d8a75e78aac594b5)

species_list.csv (MD5: 6abaa00e0b2744c3da8361509d33ee04)

species_name_changes.csv (MD5: daae6f3b8983c41e83fbe2f2815a053e)

shapefiles.zip (MD5: 32b1fa8d6d9edba2499dd45f60033553)


Abstract

This data set was created to map and analyze demographic rates of many common plant species in the shortgrass steppe of North America under grazed and ungrazed conditions. Twenty-four permanent 1-m² quadrats were established as part of the Shortgrass Steppe Long Term Ecological Research project in six grazed and ungrazed study sites on the Central Plains Experimental Range in Nunn, Colorado, USA. We used a pantograph to record the location and shape of individual plants annually from 1997 to 2010. These data make it possible to determine the fate of individual plants using a Geographic Information System and spatial analysis techniques. The data provide unique opportunities to test the interactive effects of grazing and climate variables on demographic rates, plant–plant interactions, and population and community dynamics. We provide the following data and data formats: (1) the digitized maps in shapefile format; (2) a tabular representation of centroid or point location (x, y coordinates), and basal cover (m²) for plants mapped as polygons; (3) quadrat information including location (longitude and latitude), elevation, and livestock grazing treatment and history; (4) detailed information on stocking rates during the period of quadrat sampling; (5) daily temperature and precipitation values; (6) a species list including the total records for each species, plant growth forms, and longevity; and (7) an inventory of the years each quadrat was sampled.

Key words: climate; Colorado; Geographic Information Systems (GIS); livestock grazing; plant community; plant demography; shortgrass steppe; species interaction.