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Steller's eider (Polysticta stelleri) population and density estimates from the Arctic Coastal Plain and Utqiagvik Triangle surveys using generalized additive models

Dates

Release Date
2024-12-17 09:00:00
Start Date
2024-08-01 08:00:00

Citation

Osnas, E.E. 2024. Steller’s eider (Polysticta stelleri) population and density estimates from the Arctic Coastal Plain and Utqiagvik Triangle surveys using generalized additive models. US Fish and Wildlife Service, Division of Migratory Bird Management, Anchorage, AK. Version 0.1.0, https://doi.org/10.7944/3vzp-0r93.

Summary

Annual populations and spatial density estimates are needed for the threatened Alaska-breeding population of Steller’s eiders (Polysticta stelleri) to assess recovery status and guide recovery actions but these quantities are poorly estimated in this rare species using traditional methods. Therefore, population size and spatial variation in density were estimated across the Arctic Coastal Plain (ACP) and Utqiagvik Triangle (Triangle) survey areas using spatio-temporal generalized additive models and compared to traditional design-based estimates. Compared to design-based estimates, model-based estimates were more precise and less variable between years. Moreover, data sets can be combined to produce common estimates, detection probability [...]

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md_metadata.json 22.2 KB application/json
metadata_iso1.xml 194.32 KB application/vnd.iso.19139-1+xml
STEI__report_440ee11.pdf
“report”
1.86 MB application/pdf

Material Request Instructions

U.S. Fish and Wildlife Service, Alaska Region(Distributor); Migratory Bird Management Alaska(Distributor)

Additional Information

Identifiers

Type Scheme Key
urn:uuid urn:uuid bbde2a28-567a-4a0e-8bcc-2e12a8fa9a97
Alaska Regional Data Repository Alaska Regional Data Repository mbm7ss_004
info:doi/ info:doi/ 10.7944/3vzp-0r93

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