README document for the Supporting Information to:
"Using Unstructured Crowd-sourced Data to Evaluate Urban Tolerance of Terrestrial Native Species within a California Mega-City"

by Joseph N. Curti, Michelle Barton, Rhay G. Flores, Maren Lechner, Alison Lipman, Graham A. Montgomery, Albert Y. Park, Kirstin Rochel, Morgan W. Tingley 

Any questions should be directed to Morgan Tingley at mtingley@ucla.edu

There are 12 R scripts associated with this work, including: 

	1. 1_LABuffer.R - Create a 200 km buffer around Los Angeles
	2. 2_GISProcessing.R - Process the raw GIS layers to calculate the urban index
	3. 3_UrbanPCA.R - Calculate the spatial PCA of urban intensity
	4. 4_iNat_query.R - Download iNaturalist data for target taxa within study region
	5. 5_iNat_clean.R - Take raw iNaturalist data and do an initial cleaning of data to species-level
	6. 6_DeepClean.R - Take cleaned iNaturalist data and eliminated non-native species, other excluded species, and records with missing key data
	7. 7_Effort.R - Create taxa-specific occurrence matrices across entire SoCal study area at 0.25-mi grid
	8. 8_UAI.R - Calculate UAI scores for each taxa based off of Effort & Grid
	9. 9_CUTI.R - Calculate CUTI index for all taxa in Los Angeles
	10. 10_PostAnalyses.R - A bunch of analyses and summaries of the data product used in the manuscript including figures
	11. 11_AffinityFig.R - Create figure of UAI versus occurrence for 3 example species
	12. 12_SummaryTables.R - Creation of 2 summary tables for manuscript

There are 3 additional files in this supplemental data repository:

	1. Supplement_PLOS_Curti.docx - This file contains all supplemental figures and tables mentioned in the main text except S2 Table
	2. SITable2_PLOS_Curti.csv - This file corresponds to S2 Table in the main text and contains all 511 native species assessed in this paper and their corresponding UAI values
	3. RawData_PLOS_Curti.csv - This file contains links to all 958,624 unfiltered iNaturalist observations used in this paper