Study Number: 

1066

Project Title:

Nematode total numbers in greenfall and litterfall exclusion quadrat treatments on canopy plots.

Investigator(s):

Barbara C. Reynolds  E-Mail | Tel. 706.542.1837 | Biographical Sketch
 Mark D. Hunter  Biographical Sketch  (Retired)
Affiliated Institution(s): University of North Carolina - Asheville  (Reynolds)
University of Georgia  (Hunter)
Address: Department of Environmental Studies
University of North Carolina - Asheville
Asheville, North Carolina 28804 USA

Institute of Ecology
University of Georgia
Athens, Georgia 30602  USA
Study Type: Terrestrial
Project Type: Coweeta Core Research
Study Period:

05/1998 to 09/1998

Status/Notes:

Type 1
Funding Sources:

National Science Foundation, DEB-9632854 (Text Version) and DEB-0218001 (Text Version) to Coweeta LTER.
Abstract: Numbers of nematodes per gram dry weight of liter are reported from litterbags placed in quadrat treatment boxes on canopy gradient sites. Treatments for this project are greenfall exclusion and litterfall exclusion. See Reynolds 2000 dissertation, Effects of canopy herbivores on soil systems along an elevation gradient (in Publications section below). All data are from collections made in 1998.


Resources for students about terms used in this study:
What are Nematodes? - Source: University of Nebraska-Lincoln
Biodiversity in Soil and Leaf Litter - Source: Australian Museum
Location(s), Described: Quadrat treatment boxes on Watershed 18, Canopy site 218; Watershed 27, Canopy sites 427 and 527(photographs).

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
(Printable for fieldwork)
Methods/Experimental Design: Treatments used on quadrat boxes for these data are greenfall exclusion (boxes 2,7,12,17,22) and litterfall exclusion (boxes 1,6,11,16,21). Nematodes were extracted from approximately half of the litter in a litter bag. The other half of the litter was weighed (wet wt) dried and weighed again (dry wt litter). % moisture was calculated from those weights. Litter used for nematode extractions was weighed before extraction (wet wt sample). The calculated % moisture was applied to that wet weight in order to calculate the dry weight of the nematode litter sample. Final nematode numbers are expressed on basis of dry weight of litter.
Sampling Frequency: Monthly
Data Columns:

ID - Record identification
Site - Site number - 218, 427, 527 (See Locations, Described above)
Date - Date
Box - Box number
Total - Total number of nematodes per sample
Bag - Bag number
Comments - General comments
Wet_Wt - Wet weight of litter sample; grams (g)
Dry_Wt - Dry weight of litter sample; grams (g)
Wet_Wt_Sample - Wet weight of nematode litter sample; grams (g)
Per_Moisture - Percent (%) moisture of litter sample
Dry_Wt_Sample - Calculated dry weight of nematode litter sample; grams (g)
Total_NM - Total number of nematodes per gram dry weight of litter

Missing Data Codes: . (Period)
Publications:

Reynolds, Barbara, C.; Crossley, D.A., Jr.; Hunter, Mark D. 2003. Response of soil invertebrates to forest canopy inputs along a productivity gradient. Pedobiologia. 47:127-139.

Reynolds, Barbara C. 2000. Effects of canopy herbivores on soil systems along an elevation gradient. PhD Dissertation. University of Georgia.
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)