Population Dynamics

Information associated with the population dynamics of organisms

Biomass and shoot densities of marsh grasses at hayed and reference sites for samples collected in June and early July 2000

Abstract: 

Biomass and shoot densities of dominant marsh grasses at hayed and reference sites for samples collected in June and early July 2000 at hayed and reference marsh sites near Stackyard Rd. and Patmos Rd, Rowley, Massachusetts

Core Areas: 

Data set ID: 

23

Keywords: 

Short name: 

LTE-MD-EARLYVEG

Data sources: 

LTE-MD-EARLYVEG_csv
LTE-MD-EARLYVEG_xls

Methods: 

Shoot densities and biomass of individual species within four vegetation zones (Spartina alterniflora, S. patens, Distichlis spicata, Juncus gerardi) were compared at four marsh sites (2 hayed and 2 reference).

Sampling was carried out by placing three 0.1 m2 quadrats within identified vegetation zones at each marsh site. Plants were clipped at the surface of the substrate and then divided into live and dead material. The live plants were further separated into individual species. The number of shoots per species per quadrat was determined by counting individual shoots. After counting, plant material was dried at 60oC to constant weight (about 48 hrs) and the plants weighed on an electronic balance.

NOTES AND COMMENTS: Vegetation zones were determined visually and were therefore somewhat subjective. Abbreviations for “Collector” RB (Robert Buchsbaum), AC (Amy Chiuchiolo), LD (Linda Deegan), JH (Julie Horowitz), MM (Maria Mensching), GDA (Governor Dummer students)

Maintenance: 

Version 01: initial Excel to EML metadata
Version 02: keyword update
Version 03: March 7, 2016, data and metadata updates to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Mar2016.xlsm 3/07/16 3:34 PM for QA/QC to EML 2.1.0

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