Correction factors.

• Main Authors: Richard Condit (114548), Sarah G. Allen (11993642), Daniel P. Costa (7359032), Sarah Codde (11993645), P. Dawn Goley (11993648), Burney J. Le Boeuf (11993651), Mark S. Lowry (11993654), Patricia Morris (11993657)
• Format: Still Image
• Language: unknown
• Published: 2022
• Subjects: Evolutionary Biology; Ecology; Inorganic Chemistry; Environmental Sciences not elsewhere classified; Biological Sciences not elsewhere classified; particularly colonial birds; yield total population; total population size; produce population estimates; single count throughout; one count captures; female population size; several additional colonies; northern elephant seals; asynchronous breeding phenology; estimating population size; years within sites; many seasonal species; female count; many years; elephant seals; entire population; single site; seasonal breeders; one day; asynchronous species; yet studied; xlink ">; seven colonies; quantifying asynchrony; minimized error; minimal expenditure; facilitate monitoring; correction factors; correction factor; common problem; 5 days; 30 jan; 2 days; 15 yielded; &# 241; King Range; Elephant Seals
• Online Access: https://doi.org/10.1371/journal.pone.0262214.g004

The model’s estimated multiplier for converting any daily count into a total female population, as a function of date (ANI = Año Nuevo Island, ANML = Año Nuevo Mainland, PR = Point Reyes, CI = Channel Islands, KR = King Range). Each panel shows the curve for one of those four sites highlighted in blue, including credible intervals; the red lines are the remaining sites, with King Range added in green in all panels. Dotted horizontal guide lines are at 1.1 and 1.2. The census and hence the correction curve was earlier at Año Nuevo Island and the Channel Islands, later at the other three sites.