Cold spell en route delays spring arrival and decreases apparent survival in a long-distance migratory songbird
Open Access
- 4 April 2017
- journal article
- research article
- Published by Springer Science and Business Media LLC in BMC Ecology
- Vol. 17 (1), 1-8
- https://doi.org/10.1186/s12898-017-0121-4
Abstract
Adjusting the timing of annual events to gradual changes in environmental conditions is necessary for population viability. However, adaptations to weather extremes are poorly documented in migratory species. Due to their vast seasonal movements, long-distance migrants face unique challenges in responding to changes as they rely on an endogenous circannual rhythm to cue the timing of their migration. Furthermore, the exact mechanisms that explain how environmental factors shape the migration schedules of long-distance migrants are often unknown. Here we show that long-distance migrating semi-collared flycatchers Ficedula semitorquata delayed the last phase of their spring migration and the population suffered low return rates to breeding sites while enduring a severe cold spell en route. We found that the onset of spring migration in Africa and the timing of Sahara crossing were consistent between early and late springs while the arrival at the breeding site depended on spring phenology at stopover areas in each particular year. Understanding how environmental stimuli and endogenous circannual rhythms interact can improve predictions of the consequences of climate changes on migratory animals.Keywords
Funding Information
- Grantová Agentura České Republiky (13-06451S)
This publication has 35 references indexed in Scilit:
- Effect of Geolocators on Migration and Subsequent Breeding Performance of a Long-Distance Passerine MigrantPLOS ONE, 2013
- Geolocation by light: accuracy and precision affected by environmental factorsMethods in Ecology and Evolution, 2012
- Ecological and Evolutionary Responses to Recent Climate ChangeAnnual Review of Ecology, Evolution, and Systematics, 2006
- The role of wind in passerine autumn migration between Europe and AfricaBehavioral Ecology, 2005
- The influence of climate on the timing and rate of spring bird migrationOecologia, 2004
- Ecological responses to recent climate changeNature, 2002
- Energetic and Fitness Costs of Mismatching Resource Supply and Demand in Seasonally Breeding BirdsScience, 2001
- Observed climate variability and change of relevance to the biosphereJournal of Geophysical Research: Solid Earth, 2000
- The NCEP/NCAR 40-Year Reanalysis ProjectBulletin of the American Meteorological Society, 1996
- Genetic control of migratory behaviour in birdsTrends in Ecology & Evolution, 1991