Function to calculate temperature stress status for each individual species on the basis of air temperature values.
Data frame of climate data, including temperature, precipitation, water year, and dates
Data frame of species temperature and precipitation characteristics
Temperature stress evaluted by computing the number of annual climate stress days, or the number of days per year where tmax >86 deg F (>30 deg C). Air temperatures of >86 deg F (>30 deg C) are considered high stress temperatures for most plant species (see references). If the number of species tolerable temperature stress days <= climate stress days, than the species stressed column equals yes (species faces temperature stress), otherwise it equals no. There is a unique stressed column for each species, with the species identifier as the column name header. Plant characteristic information and climate tolerance information is sourced from the USDA.
This function can be used to assess which species face reoccurring temperature stress in the region, and may need additional support.
Data frame including the number of annual high temperature stress days and species temperature stress status by year
Sofie McComb & Margaux Sleckman
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