Spatio-temporal population change of arctic-breeding waterbirds We mapped the relative density (km

Appendix 5 – Density (km²) Maps 1 Appendix 5. Density (km²) maps

Spatio-temporal population change of arctic-breeding waterbirds

We mapped the relative density (km²) within approximately 36 km² (6 km by 6 km) cells to 20 waterbird species observed during the Arctic Coastal Plain Breeding Waterfowl Survey, Alaska, 1992–2016. We estimated density using hierarchical generalized linear mixed models (see main text, Methods). We present maps in taxonomic order (Chesser et al. 2018) for Lesser Snow Goose, Greater White-fronted Goose, Black Brant, Cackling Goose, Tundra Swan, Northern Pintail, Scaup (Lesser and Greater combined), Steller’s Eider, Spectacled Eider, King Eider, White- winged Scoter, Long-tailed Duck, Red-breasted Merganser, Jaeger (Pomarine, Parasitic, and Long-tailed combined), Sabine’s Gull, Glaucous Gull, Arctic Tern, Red-throated Loon, Pacific Loon, and Yellow-billed Loon.

Chesser, R. T., K. J. Burns, C. Cicero, J. L. Dunn, A. W. Kratter, I. J. Lovette, P. C. Rasmussen, J. V. Remsen, Jr., J. D. Rising, D. F. Stotz, and K. Winker. 2018. Fifty-ninth supplement to the American Ornithological Society’s check-list of North American birds. The Auk:

Ornithological Advances 135:798–813.

Appendix 5 – Density (km²) Maps 2 Figure A5.1. Lesser Snow Goose density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 3 Figure A5.2. Greater White-fronted Goose density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 4 Figure A5.3. Black Brant density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 5 Figure A5.4. Cackling Goose density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 6 Figure A5.5. Tundra Swan density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 7 Figure A5.6. Northern Pintail density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 8 Figure A5.7. Scaup sp. (Lesser and Greater combined) density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 9 Figure A5.8. Steller’s Eider density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 10 Figure A5.9. Spectacled Eider density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 11 Figure A5.10. King Eider density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 12 Figure A5.11. White-winged Scoter (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 13 Figure A5.12. Long-tailed Duck density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 14 Figure A5.13. Red-breasted Merganser density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 15 Figure A5.14. Jaeger (Pomarine, Parasitic and Long-tailed combined) density (km²) across the Arctic Coastal Plain, Alaska 1992–

2016.

Appendix 5 – Density (km²) Maps 16 Figure A5.15. Sabine’s Gull density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 17 Figure A5.16. Glaucous Gull density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 18 Figure A5.17. Arctic Tern density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 19 Figure A5.18. Red-throated Loon density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 20 Figure A5.19. Pacific Loon density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.

Appendix 5 – Density (km²) Maps 21 Figure A5.20. Yellow-billed Loon density (km²) across the Arctic Coastal Plain, Alaska 1992–2016.