Frog Living City Report Card grading.Frog/toad site scores were calculated by taking the sum of the scores for each unique species per site per year. If a site contained more than one survey station an average was taken. Final site scores were used for grading. Averages were calculated for each 5 year period and compared.Data is for period ending: 12/31/2019View the Natural Heritage System Reporting Key for detailed information about target setting and evaluation of current conditions and trends, including data collection and analysis methodologies.
