Changes in Kernel Density Estimates for Black-Necked Stilts in South San Francisco Bay
By Western Ecological Research Center (WERC)
2021 (approx.)
Detailed Description
Changes in kernel density estimates for Black-necked Stilts in south San Francisco Bay between the 2001 and 2019 surveys. Darker blue colors indicate declining abundance whereas darker red colors indicate an increase in abundance from 2001 to 2019. Areas in white were not estimated because they were not surveyed in one or both years.
Sources/Usage
Public Domain.