Light Measurements
PAR and UV-A/B radiation (250 – 400 nm) were measured under windows and
at nearby un-manipulated site reference mosses in April 2019 using
LightScout UV and Quantum Sensors and the LightScout Sensor Reader
(Spectrum Technologies, Aurora, IL, USA). Data were first tested for
normality with the Shapiro-Wilk test (Shapiro & Wilk 1965). Differences
in PAR between field treatments were tested for with two-tailed paired
Student’s T-tests and differences in UV were tested for with Wilcoxon
signed-rank tests (Wilcoxon 1945). Significance was adjusted with the
Benjamini and Hochberg correction (Benjamini & Hochberg 1995) to
account for the false discovery rate of multiple tests (Jafari &
Ansari-Pour 2019).