|
Study Number: |
1007 |
|---|---|
|
Project Title: |
Rhododendron maximum cover across an elevation gradient. |
|
Investigator(s): |
James Clark E-Mail
|
Tel.
919.660.7402
|
Biographical Sketch |
The Clark
Lab Janneke Hille Ris Lambers Email | 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: |
06/1997 - 06/1999 |
| Status/Notes: | |
| Funding Sources: |
National Science Foundation, DEB-9632854 (Text Version) and DEB-0218001 (Text Version) to Coweeta LTER. |
| Abstract: |
Rhododendron maximum
leaf area was measured at 167 locations to determine the spatial extent
of this understory shrub, and compare Rhododendron maximum cover with
seedling germination rates and seedling diversity (measured in another
study).
Rhododendron maximum leaf
area index was determined at 167 points within each permanent vegetation
plot. Resources
for students about terms used in this
study:Rhododendron maximum - Source: USDA Plants Database Plant Parameter Database - Source: University of Guissen LAI (Leaf Area Index) - Source: Oak Ridge National Laboratory |
| 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-based maps of research sites for this project(Printable for fieldwork) |
| Methods/Experimental Design: | Rhododendron maximum leaf area index was determined at 167 points within each permanent vegetation plot. LAI (leaf area index) was estimated by counting the number of leafs touching a 2 meter pole. Each estimate is the average of four equidistant points. |
| Sampling Frequency: | Initial 86 points sampled in 1997, remainder sampled in the summer of 1999. |
| Data Columns: |
Plot - One of 4 permanent
vegetation plots; 218, 318, 427, 527. Sample_No - 1 through 167 X_Location - X coordinate on 80 x 80 meter plot Y_Location - Y coordinate on 80 x 80 meter plot LAI - Rhododendron maximum Leaf Area Index; # leaves |
| 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; Clark, James S. 2003. Effects of dispersal, shrubs, and density-dependent mortality on seed and seedling distributions in temperate forests. Canadian Journal Forestry Research. 33:783-795. Hille Ris Lambers, Janneke; Clark, James S. 2005. The benefits of seed banking for red maple (Acer rubrum): maximizing seedling recruitment. Canadian Journal Forestry Research. 35: 806-813. Hille Ris Lambers, Janneke; Clark, James S.; Beckage, Brian. 2002. Density-dependent mortality and the latitudinal gradient in species diversity. Nature. 417: 732-735. 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) |