Climatic niche data for presences and pseudo-absences of four desert plant species

Presence data for four plant species (Bromus rubens, Layia platyglossa, Phacelia tanacetifolia, and Salvia columbariae) scraped from the Global Biodiversity Information Facility for a section of Southern California along with matching climatic data from WorldClim. Pseudo absences were randomly selected within the same extent as the presence data (latitude: 35.28531- 36.56198; longitude: -120.2184- -116.7162) using the biomod2 package in R. WorldClim version 2.1 climate data was extracted at a resolution of 0.5 minutes (~1 km2) and pseudo absences were selected from the raster pixels not containing any presences. The number of pseudo absences selected was based on three times the number of presences for each species. All temperatures are in degrees Celsius.

Data Headings:

long = longitude

lat = latitude

ops_type = whether obersavation is a true presence or psuedo absence

species = plant species

presence = 1 for presence, 0 for absence

bio1 = Mean annual temperature

bio2 = Mean diurnal range (mean of max temp - min temp)

bio3 = Isothermality (bio2/bio7) (* 100)

bio4 = Temperature seasonality (standard deviation *100)

bio5 = Max temperature of warmest month

bio6 = Min temperature of coldest month

bio7 = Temperature annual range (bio5-bio6)

bio8 = Mean temperature of the wettest quarter

bio9 = Mean temperature of driest quarter

bio10 = Mean temperature of warmest quarter

bio11 = Mean temperature of coldest quarter

bio12 = Total (annual) precipitation

bio13 = Precipitation of wettest month

bio14 = Precipitation of driest month

bio15 = Precipitation seasonality (coefficient of variation)

bio16 = Precipitation of wettest quarter

bio17 = Precipitation of driest quarter

bio18 = Precipitation of warmest quarter

bio19 = Precipitation of coldest quarter