This file includes variable descriptions for the  dataset that accompanies:

Beck, Rugenski, and Poff (2021). Limiting nutrients drive mountain stream ecosystem processes along an elevation gradient. Freshwater Science. 
Contact: whitneyshannonbeck@gmail.com
All data was analyzed in R version 3.5.0

Dataset: “Excretion Data.csv”

Date = excretion measurement date
Site = Stream Site (BV = Beaver Creek, EFSC = East Fork Sheep Creek, EK = Elkhorn Creek, KP = Killpecker Creek, LB = Little Beaver Creek, PG = Cache la Poudre River at Pingree Park, SM = Seven Mile Creek, WFSC = West Fork Sheep Creek)
Species = insect species
Type = insect family 
Elevation = elevation in m of stream site
Temp = water temperature in Celsius
Length = insect length in cm
DM = insect dry mass in mg
Ng = grams of N excreted (NH4) per hour 
Numol = umol of N excreted (NH4) per hour
Pg = grams of P excreted (SRP) per hour
Pumol = umol of P excreted (SRP) per hour
NgPerMass = grams of N excreted per insect mg per hour
NumolPerMass = umol of N excreted per insect mg per hour
PgPerMass = grams of P excreted per insect mg per hour
PumolPerMass = umol of P excreted per insect mg per hour
NPMolar = ratio of Numol excreted to Pumol excreted