|
Study Number: |
1005 |
|---|---|
|
Project Title: |
Tree seedling densities across an elevation and moisture gradient. |
|
Investigator(s): |
James Clark E-Mail | Tel. 919.660.7402 | Biographical Sketch | The Clark Lab Janneke Hille Ris Lambers E-mail | Tel. 206.543.7389 |
| Affiliated Institution(s): | Duke University |
| Address: |
Duke University
Department of Biology Durham, North Carolina 27708 USA |
| Study Type: | Terrestrial |
| Project Type: | Coweeta Core Research |
| Study Period: |
06/1996 - 6/1999 |
| Status/Notes: | Type 1 |
| Funding Sources: | National Science Foundation, DEB-9632854 (Text Version) and DEB-0218001 (Text Version) to Coweeta LTER. |
| Abstract: |
First
year seedling densities of all woody perennials (trees, vines, shrubs)
were censused across five permanent vegetation plots to compare spatial
distributions with adult trees, seed densities and seed bank densities.
|
| Location(s), Described: |
Watershed 18
and
Watershed 27,
permanent vegetation plots 118, 218, 318, 427, 527. See Project Summary Sheet 1048 and Terrestrial Gradient Sites: Characteristics (photographs) for detailed information about plot locations and physical descriptions, respectively. |
| Location(s), Download GPS: | ArcView Shape Files (shp.): UTM, NAD83, Zone 17 | Lat/Lon |
| Location(s), Online Maps: |
 USGS
Topographic Mapsof research sites for this project (Printable for fieldwork) |
| Methods/Experimental Design: | We censused seedlings annually in 86 1 meter square quadrats at each permanent vegetation plot. Seedlings were identified as first year by the presence of cotyledons and/or woodiness. Quadrats are located roughly on a grid (every four meters) within the original 20 x 40 meter permanent plots. Censuses were initiated in 1996 (at all sites but 118). Quadrats are marked by pvc corners with flagging wrapped around them. We censused seedlings annually in 86 1 meter square quadrats at each permanent vegetation plot. Seedlings were identified as first year by the presence of cotyledons and/or woodiness. Quadrats are located roughly on a grid (every four meters) within the original 20 x 40 meter permanent plots. Censuses were initiated in 1996 (at all sites but 118). Quadrats are marked by pvc corners with flagging wrapped around them. |
| Sampling Frequency: | Once a year. |
| Data Columns: |
Plot - permanent
vegetation plot Year - year sampled Sample_No - 86 quadrats X_location - x coordinate within 80 x 80 meter plot Y_location - y coordinate within 80 x 80 meter plot BEUN - Betula lenta/lutea seedlings within quadrat NYSY - Nyssa sylvatica seedlings within quadrat FRAM - Fraxinus americana seedlings within quadrat TSCA - Tsuga canadensis seedlings within quadrat LITU - Liriodendron tulipifera seedlings within quadrat RHMA - Rhododendron maximum seedlings within quadrat VISP - Vitis spp seedlings within quadrat ACRU - Acer rubrum seedlings within quadrat ACPE - Acer pennsylvannicum seedlings within quadrat ACSA - Acer saccharum seedlings within quadrat CASP - Carya spp. seedlings within quadrat QUVE - Quercus velutina seedlings within quadrat AMUN - Amalanchier canadensis/laevis seedlings within quadrat ROPS - Robinia pseudoacacia seedlings within quadrat QURU - Quercus rubra seedlings within quadrat HAVI - Hamamelis virginiana seedlings within quadrat SAAL - Sassafras albidum seedlings within quadrat QUPR - Quercus prinus seedlings within quadrat MAFR - Magnolia frasierii seedlings within quadrat MAAC - Magnolia acuminata seedlings within quadrat |
| Publications: |
Clark, James S.; Silman,
Miles; Kern, Ruth; Macklin, Eric; Hille Ris Lambers, Janneke. 1999.
Seed
Dispersal Near And Far: Patterns Across Temperate And Tropical Forests.
Ecology. 80(5):
1475-1494. Hille Ris Lambers, Janneke. 2001. Dormancy, Dispersal, and Density-Dependent Mortality: Coexistence of Temperate Forest Tree Species. Ph.D. Dissertation. Duke University. |
| Data Restrictions: | Users must adhere to the Coweeta LTER Data Policy. |
| Metadata: | EML Format (XML Schema) | Information about EML |
| Data Downloads: |
Microsoft® Excel (.xls) Text Comma Delimited (.csv) DBase (.dbf) |
