stemHeights {NitrogenUptake2016}R Documentation

Data: Stem heights for each mesocosm and each measurement date

Description

A dataframe of Spartina alterniflora and Distichlis spicata stem heights, from the mesocosms used in 15N study. Samples were collected from Colt State Park, Bristol, RI, USA, and grown in the US EPA Atlantic Ecology Division greenhouse.

Usage

stemHeights

Format

A dataframe with 3315 observations of 10 variables:

date

Measurement date

core_num

Mesocosm number

species

Species, either Spartina alterniflora (SA) or Distichlis spicata (DS)

dead_live

Indicates whether plant was live or dead

plant_num

Plants were tagged to permit growth rate calculations; this is the plant tag number

height_cm

Stem height, in centimeters, from the sediment surface to the tip of the longest leaf

id

Unique plant identifier, combining species, mesocosm number, and plant tag number

day

Measurement date expressed in YYYY-MM-DD format (and structured as a POSIXct column in R)

timeSinceLast

Days since last measurement

new.core.id

Mesocosm ID, including species and a unique mesocosm number (time-zero mesocosms re-numbered as mesocosms 13, 14, and 15)

References

Hill, T.D., N.R. Sommer, C.R. Kanaskie, E.A. Santos, A.J. Oczkowski. 2018. Data and source code from: Nitrogen uptake and allocation estimates for Spartina alterniflora and Distichlis spicata. Data In Brief. 21: 466-472. https://doi.org/10.1016/j.dib.2018.09.133.

Hill, T.D., N.R. Sommer, C.R. Kanaskie, E.A. Santos, A.J. Oczkowski. 2018. Nitrogen uptake and allocation estimates for Spartina alterniflora and Distichlis spicata. Journal of Experimental Marine Biology and Ecology 507: 53-60. https://doi.org/10.1016/j.jembe.2018.07.006.

Examples

### export to .csv:
write.csv(stemHeights, file = file.path(tempdir(), "stemHeights.csv"))

[Package NitrogenUptake2016 version 0.2.3 Index]