Data from: Using citizen-science observations to understand long-term trends in common and Pacific loon populations in urbanized Southcentral Alaska

Table A1Citizen scientists collected observational data of common loon Gavia immer chick survival across five sub-regions of Southcentral Alaska; Anchorage, Joint Base Elmendorf-Richardson (JBER), Kenai Peninsula (Kenai), Matanuska-Susitna Valley (Mat-Su) and Outlying, 1985-2015. Data is summarized by sub-region, location or town within the sub-region, name of lake observed, year of observation, number of nesting pairs, number of chicks hatched per breeding pair and number of chicks that survived past the defined survival threshold (16 September for common loon, 26 August for Pacific loon). A metadata (data dictionary) file is associated with the data file.Table_A1.xlsxTable A2Citizen scientists collected data on anthropogenic and natural disturbances for lakes observed in the five sub-regions of Southcentral Alaska; Anchorage, Joint Base Elmendorf-Richardson (JBER), Kenai Peninsula (Kenai), Matanuska-Susitna Valley (Mat-Su) and Outlying, 1985-2015. Anthropogenic disturbances include: swimming, fishing, non-motor craft, motor boats, jet skis, float planes and dogs. Natural disturbances include: eagles, mammals and flooding. Disturbance is summarized by frequency of occurrence; daily, weekly, monthly, occasionally or never occurred. A metadata (data dictionary) file is included in this data file.Table_A2.xlsxTable A3Presence or absence of common loon Gavia immer and Pacific loon Gavia pacifica on lakes observed by citizen scientists in five sub-regions of Southcentral Alaska; Anchorage, Joint Base Elmendorf-Richardson (JBER), Kenai Peninsula (Kenai), Matanuska-Susitna Valley (Mat-Su) and Outlying, 1985-2015. Adults and chicks are ranked as (1) if present or (0) is absent from an observed lake. A metadata (data dictionary) file is associated with this data file.Table_A3.xlsxTable A4Number of structures located within a 150m buffer of lakes observed by citizen scientists in five sub-regions of Southcentral Alaska; Anchorage, Joint Base Elmendorf-Richardson (JBER), Kenai Peninsula (Kenai), Matanuska-Susitna Valley (Mat-Su) and Outlying, 1985-2015. Only lakes with a least 3 observations over a 5 year period and only years where Google Earth imagery was available were included in the analysis. A metadata (data dictionary) file is associated with this data file.Table_A4.xlsx