In 2019, California researchers used 1,500 volunteers to count seals and sea lions from drone images; 11 repeated counts improved accuracy |
More than 1,500 people helped researchers count seals and sea lions on California’s Año Nuevo Island by studying thousands of drone photographs. The citizen science project ran for 212 days, with volunteers counting about 94,000 image tiles. Researchers then compared the volunteer counts with counts made by experts. According to the study published in Plos…
