Activity patterns throughout the annual cycle in a long-distance migratory songbird, the red-backed shrike Lanius collurio
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Activity patterns throughout the annual cycle in a long-distance migratory songbird, the red-backed shrike Lanius collurio. / Macías-Torres, Pablo; Alerstam, Thomas; Andersson, Arne; Bäckman, Johan; Thorup, Kasper; Tøttrup, Anders P.; Sjöberg, Sissel.
In: Movement Ecology, Vol. 10, 55, 2022.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Activity patterns throughout the annual cycle in a long-distance migratory songbird, the red-backed shrike Lanius collurio
AU - Macías-Torres, Pablo
AU - Alerstam, Thomas
AU - Andersson, Arne
AU - Bäckman, Johan
AU - Thorup, Kasper
AU - Tøttrup, Anders P.
AU - Sjöberg, Sissel
N1 - Publisher Copyright: © 2022, The Author(s).
PY - 2022
Y1 - 2022
N2 - Background: Long-distance migratory birds undergo complex annual cycles during which they must adjust their behaviour according to the needs and conditions encountered throughout the year. Yet, variation in activity throughout the entire annual cycle has rarely been studied in wild migratory birds. Methods: We used multisensor data loggers to evaluate the patterns of activity throughout the complete annual cycle of a long-distance migratory bird, the red-backed shrike Lanius collurio. Accelerometer data was used to identify life-history stages and to estimate levels of activity during various phases of the annual cycle. In this study, we analysed the variation in daytime activity along the annual cycle and between migratory and non-migratory days. Results: The birds’ daytime activity varied throughout the annual cycle while night-time activity was almost exclusively restricted to migratory flights. The highest daytime activity levels were observed during the breeding season, while it remained low during autumn migration and the winter period. Daytime activity differed between sexes during the breeding period, when the males showed the highest level in activity. During migratory periods, both sexes exhibited a higher daytime activity in spring compared to autumn migration, being particularly high in the final migratory leg towards the breeding ground. The birds showed a lower daytime activity on migratory days (days when a migratory flight took place during the succeeding night) than on non-migratory days during both migratory seasons. Conclusions: Activity measured during daytime results from a combination of several behaviours, and a high daytime activity during spring migration and the breeding period is possibly reflecting particularly energy-demanding periods in the annual cycle of migratory birds. The use of multisensor data loggers to track annual activity provides us with a full annual perspective on variation in activity in long-distance migratory species, an essential approach for understanding possible critical life-history stages and migration ecology.
AB - Background: Long-distance migratory birds undergo complex annual cycles during which they must adjust their behaviour according to the needs and conditions encountered throughout the year. Yet, variation in activity throughout the entire annual cycle has rarely been studied in wild migratory birds. Methods: We used multisensor data loggers to evaluate the patterns of activity throughout the complete annual cycle of a long-distance migratory bird, the red-backed shrike Lanius collurio. Accelerometer data was used to identify life-history stages and to estimate levels of activity during various phases of the annual cycle. In this study, we analysed the variation in daytime activity along the annual cycle and between migratory and non-migratory days. Results: The birds’ daytime activity varied throughout the annual cycle while night-time activity was almost exclusively restricted to migratory flights. The highest daytime activity levels were observed during the breeding season, while it remained low during autumn migration and the winter period. Daytime activity differed between sexes during the breeding period, when the males showed the highest level in activity. During migratory periods, both sexes exhibited a higher daytime activity in spring compared to autumn migration, being particularly high in the final migratory leg towards the breeding ground. The birds showed a lower daytime activity on migratory days (days when a migratory flight took place during the succeeding night) than on non-migratory days during both migratory seasons. Conclusions: Activity measured during daytime results from a combination of several behaviours, and a high daytime activity during spring migration and the breeding period is possibly reflecting particularly energy-demanding periods in the annual cycle of migratory birds. The use of multisensor data loggers to track annual activity provides us with a full annual perspective on variation in activity in long-distance migratory species, an essential approach for understanding possible critical life-history stages and migration ecology.
KW - Accelerometer
KW - Activity data
KW - Annual cycle
KW - Biologging
KW - Energy budget
KW - Migration
U2 - 10.1186/s40462-022-00355-0
DO - 10.1186/s40462-022-00355-0
M3 - Journal article
C2 - 36457000
AN - SCOPUS:85143317012
VL - 10
JO - Movement Ecology
JF - Movement Ecology
SN - 2051-3933
M1 - 55
ER -
ID: 334467649