Life Sciences & Biomedicine - Other Topics
; Environmental Sciences & Ecology
; Evolutionary Biology
英文摘要:
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 notwell 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.
1.Univ Guelph, Dept Integrat Biol, Guelph, ON N1G 2W1, Canada 2.Dalhousie Univ, Dept Biol, Halifax, NS B3H 4R2, Canada 3.Cornell Univ, Museum Vertebrates, Dept Ecol & Evolutionary Biol, Lab Ornithol, Ithaca, NY 14853 USA 4.Bird Studies Canada, Delta, BC V4K 3N2, Canada 5.Environm & Climate Change Canada, Saskatoon, SK S7N 0X4, Canada 6.Univ Sherbrooke, Dept Biol, Sherbrooke, PQ J1K 2R1, Canada 7.Univ Northern British Columbia, Ecosyst Sci & Management Program, Prince George, BC V2N 4Z9, Canada 8.Alaska Songbird Inst, Fairbanks, AK 99708 USA 9.Univ Oklahoma, Oklahoma Biol Survey, Norman, OK 73019 USA 10.Univ Wisconsin, Dept Biol Sci, Behav & Mol Ecol Grp, POB 413, Milwaukee, WI 53201 USA 11.Beaverhill Bird Observ, Box 1418, Edmonton, AB T5J 2N5, Canada 12.Ontario Minist Nat Resources, Peterborough, ON K9J 7BS, Canada 13.Simon Fraser Univ, Dept Biol Sci, Burnaby, BC V5A 1S6, Canada 14.UNC Asheville, Dept Environm Studies, Asheville, NC 28804 USA 15.Acad Univ, Dept Biol, Wolfville, NS B4P 2R6, Canada 16.Appalachian State Univ, Dept Biol, Boone, NC 28608 USA 17.Tulane Univ, Dept Ecol & Evolutionary Biol, New Orleans, LA 70118 USA 18.Iowa State Univ, Dept Ecol Evolut & Organismal Biol, Ames, IA 50011 USA
Recommended Citation:
Gow, Elizabeth A.,Burke, Lauren,Winkler, David W.,et al. A range-wide domino effect and resetting of the annual cycle in a migratory songbird[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2019-01-01,286(1894)