Janneke HilleRisLambers

Department of Botany Duke University Durham North Carolina 27708 USA

(919) 660-7402 jannekeh@duke.edu http://coweeta.ecology.uga.edu James Clark

Department of Botany Duke University Durham North Carolina 27708 USA

(919) 660-7402 jimclark@duke.edu http://cwt33.ecology.uga.edu/piprofiles/pro_clark.html We determined the distribution of seed bank densities of woody perennial species across 5 permanent vegetation plots. We found that the distribution of seeds in the soil was determined by the spatial location of parent trees at all sites, but that absolute densities varied significantly between plots. Densities of viable seeds in soil was determined across five permanent vegetation plots, in 4 years. Soil cores were taken to 2 inches deep (including litter), soil was stratified at 4 degrees C for 6 weeks, spread out over sterile potting soil, and left in the greenhouse with plenty of light and water. Seedlings were censused as they emerged, censuses continued for 8 mo. Each soil core is 3.5 inches in diameter. Coweeta LTER seed bank dormancy Acer rubrum Betula spp. Liriodendron tulipifera Rhododendron maximum Vitis spp. Must adhere to the Coweeta LTER Data Policy (See http://coweeta.ecology.uga.edu/webdocs/3/static/datapolicies.html). http://cwt33.ecology.uga.edu/summaries/summary1006.html WS18 and WS27, permanent vegetation sites 118, 218, 318, 427, 527 2000-01-01 1995-06-01 Coweeta LTER Information Manager

Institute of Ecology University of Georgia Athens Georgia 30602 USA

(828) 524-2128 Ted Gragson

Institute of Ecology University of Georgia Athens Georgia 30602 USA

tgragson@earthlink.net principalInvestigator James Vose

Institute of Ecology University of Georgia Athens Georgia 30602 USA

jvose@fs.fed.us principalInvestigator Brian Kloeppel

Institute of Ecology University of Georgia Athens Georgia 30602 USA

kloeppel@sparc.ecology.uga.edu principalInvestigator The Coweeta LTER Research Program has evolved since 1980 from a site-based to a site- and region-based project examining the effects of disturbance and environmental gradients on biogeochemical cycling, and the underlying watershed ecosystem processes that regulate and respond to those cycles. The objective for the 2002-2008 research is to advance scientific understanding of the spatial, temporal, and decision-making components of land use and land-use change in the southern Appalachian Mountains over the last 200 years, and forecast patterns into the future 30 years. This will be accomplished by addressing ecological and socioeconomic aspects of land-use change while continuing long-term studies of environmental gradients and natural disturbance regimes. The result will be a more complete understanding of ecological dynamics in the southern Appalachian Mountains that makes possible the development of reasonable forecasts of its future ecological state. | The guiding hypothesis for the proposed research is that the frequency, intensity, and extent of land use represents human decision-making in response to socioeconomic and bio-geophysical conditions with consequences that cascade through ecosystems. The research activities are organized into three initiatives: (1) Characterization of the Socio-Natural Template, (2) Ecosystem Responses to the Socio-Natural Template, and (3) Forecasting Ecosystem Responses to Changes in the Socio-Natural Template. The integrated scientific research will provide both a description as well as an explanation of the underlying causes of land use and the consequences of land-use change for southern Appalachian ecosystems and society. It thus recognizes the complexity of land use as a process and the research needs as defined in the LTER Program and the broader scientific community. National Science Foundation. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. uid=cwt,o=lter,dc=ecoinformatics,dc=org all public read 1006.csv 1006.csv 1 \n \n column , http://cwt33.ecology.uga.edu/data/1006.csv Plot Plot one of 5 permanent vegetation plots 118, 218, 318, 427, 527 one of 5 permanent vegetation plots 118, 218, 318, 427, 527 None Missing Value Year Year year sampled YYYY None Missing Value Sample_No Sample_No sample identificator, numbered from 1 to 167 sample identificator, numbered from 1 to 167 None Missing Value X_Location X_Location x coordinate on 80 x 80 meter plot meter real None Missing Value Y_Location Y_Location y coordinate on 80 x 80 meter plot meter real None Missing Value BEUN BEUN numbers of viable seeds of Betula spp. dimensionless real None Missing Value NYSY NYSY numbers of viable seeds of Nyssa sylvatica dimensionless real None Missing Value RUSP RUSP numbers of viable seeds of Rubus spp. dimensionless real None Missing Value LITU LITU numbers of viable seeds of Liriodendron tulipifera. dimensionless real None Missing Value RHMA RHMA numbers of viable seeds of Rhododendron maximum. dimensionless real None Missing Value VISP VISP numbers of viable seeds of Vitis spp.. dimensionless real None Missing Value ACRU ACRU numbers of viable seeds of Acer rubrum. dimensionless real None Missing Value ROPS ROPS numbers of viable seeds of Robinia psuedoacacia. dimensionless real None Missing Value SAAL SAAL numbers of viable seeds of Sassafras albidum. dimensionless real None Missing Value