Coyote Brush Habitat Suitability (Baseline), Golden Gate Biosphere Network

This habitat suitability model used 1859 presence and 983 absence points collected between 1980 and 2023 from multiple sources, cleaned for accuracy and quality, and filtered to 1-km minimum nearest neighbor distance. The model calibration extent was limited to a 5-km buffer of the known species range within the California Floristic Province. The model has a spatial resolution of 270m and is based on baseline (1981-2010) climate conditions and 9 predictors: summer precipitation, summer maximum temperature, winter minimum temperature, annual runoff, terrain ruggedness, topographic heterogeneity, soil pH, soil percent clay, and soil drainage index.

Model performance was evaluated with both threshold-independent and threshold dependent metrics, and the model-specific threshold maximizing the sum of sensitivity and specificity was used for calculating threshold-dependent model evaluation metrics. This model had an AUC of 0.77, sensitivity of 0.77, specificity of 0.65, TSS of 0.42, Jaccard index of 0.64, and Sorensen similarity index of 0.78.

Values below the maximum sum of sensitivity and specificity threshold (0.5840) were assigned a value of 0. A land cover mask was used in post processing to convert the suitability value of high intensity development, barren, cultivated crops, and open water (NLCD 2021) land covers to 0 and the output was clipped to the Golden Gate Biosphere Network terrestrial boundary.