A range-wide domino effect and resetting of the annual cycle in a migratory songbird

A range-wide domino effect and resetting of the annual cycle in a migratory songbird. Gow, E., A., Burke, L., Winkler, D., W., Knight, S., M., Bradley, D., W., Clark, R., G., Bélisle, M., Berzins, L., L., Blake, T., Bridge, E., S., Dawson, R., D., Dunn, P., O., Garant, D., Holroyd, G., Horn, A., G., Hussell, D., J., T., Lansdorp, O., Laughlin, A., J., Leonard, M., L., Pelletier, F., Shutler, D., Siefferman, L., Taylor, C., M., Trefry, H., Vleck, C., M., Vleck, D., Whittingham, L., A., & Norris, D., R. Proceedings of the Royal Society B: Biological Sciences, 286(1894):20181916, 1, 2019.

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Latitudinal differences in timing of breeding are well documented but how such differences carry over to influence timing of events in the annual cycle of migratory birds is not well understood. We examined geographical variation in timing of events throughout the year using light-level geolocator tracking data from 133 migratory tree swallows (Tachycineta bicolor) originating from 12 North American breeding populations. A swallow's breeding latitude influenced timing of breeding, which then carried over to affect breeding ground departure. This resulted in subsequent effects on the arrival and departure schedules at autumn stopover locations and timing of arrival at non-breeding locations. This 'domino effect' between timing events was no longer apparent by the time individuals departed for spring migration. Our range-wide analysis demonstrates the lasting impact breeding latitude can have on migration schedules but also highlights how such timing relationships can reset when individuals reside at non-breeding sites for extended periods of time.

@article{
 title = {A range-wide domino effect and resetting of the annual cycle in a migratory songbird},
 type = {article},
 year = {2019},
 keywords = {Carry-over effects,Life history,Migration,Tachycineta bicolor,Timing of breeding,Tree swallow},
 pages = {20181916},
 volume = {286},
 websites = {https://royalsocietypublishing.org/doi/10.1098/rspb.2018.1916},
 month = {1},
 day = {16},
 id = {6c10800e-33c5-32fc-b4b8-012540f1c96f},
 created = {2020-01-10T20:37:57.954Z},
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 profile_id = {22e419ab-7898-32a2-a0e2-263b41aa7868},
 last_modified = {2020-01-10T22:05:08.317Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 citation_key = {Gow2019},
 private_publication = {false},
 abstract = {Latitudinal differences in timing of breeding are well documented but how such differences carry over to influence timing of events in the annual cycle of migratory birds is not well understood. We examined geographical variation in timing of events throughout the year using light-level geolocator tracking data from 133 migratory tree swallows (Tachycineta bicolor) originating from 12 North American breeding populations. A swallow's breeding latitude influenced timing of breeding, which then carried over to affect breeding ground departure. This resulted in subsequent effects on the arrival and departure schedules at autumn stopover locations and timing of arrival at non-breeding locations. This 'domino effect' between timing events was no longer apparent by the time individuals departed for spring migration. Our range-wide analysis demonstrates the lasting impact breeding latitude can have on migration schedules but also highlights how such timing relationships can reset when individuals reside at non-breeding sites for extended periods of time.},
 bibtype = {article},
 author = {Gow, Elizabeth A. and Burke, Lauren and Winkler, David W. and Knight, Samantha M. and Bradley, David W. and Clark, Robert G. and Bélisle, Marc and Berzins, Lisha L. and Blake, Tricia and Bridge, Eli S. and Dawson, Russell D. and Dunn, Peter O. and Garant, Dany and Holroyd, Geoff and Horn, Andrew G. and Hussell, David J. T. and Lansdorp, Olga and Laughlin, Andrew J. and Leonard, Marty L. and Pelletier, Fanie and Shutler, Dave and Siefferman, Lynn and Taylor, Caz M. and Trefry, Helen and Vleck, Carol M. and Vleck, David and Whittingham, Linda A. and Norris, D. Ryan},
 doi = {10.1098/rspb.2018.1916},
 journal = {Proceedings of the Royal Society B: Biological Sciences},
 number = {1894}
}

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