pone.0222232.g001.tif (398.78 kB)
Example time-series graphs of bird captures at Manomet for four different species from four different trend clusters.
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posted on 2019-09-06, 17:41 authored by Matthew D. Kamm, Trevor L. Lloyd-Evans, Maina Handmaker, J. Michael ReedGrey lines indicate raw capture data, blue lines indicate state-space estimates of actual migratory cohort size, and the shaded area is the 95% confidence interval around the state-space model estimate. Some species are unambiguously increasing or declining, while others show more complicated patterns. Lincoln’s Sparrow data is from spring migration, all others are from fall.
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spring migrationinterannual variationfall migrationOther specieslandbird populationscohort sizeobservation errorspecies groups40 years2015. Migration countslandbird numbersabundance trendsBBS trend dataspruce budworm specialistsUSAlife-history traitsestimate patternsabundance patternsspecies groupingspasserine birdBayesian state-space modeling approach
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