Changes in timing of autumn migration in North European songbird populations

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Changes in timing of autumn migration in North European songbird populations. / Tøttrup, Anders Peter; Thorup, Kasper; Rahbek, Carsten.

In: Ardea, Vol. 94, No. 3, 2006, p. 527-536.

Research output: Contribution to journalJournal articleResearchpeer-review

Harvard

Tøttrup, AP, Thorup, K & Rahbek, C 2006, 'Changes in timing of autumn migration in North European songbird populations', Ardea, vol. 94, no. 3, pp. 527-536.

APA

Tøttrup, A. P., Thorup, K., & Rahbek, C. (2006). Changes in timing of autumn migration in North European songbird populations. Ardea, 94(3), 527-536.

Vancouver

Tøttrup AP, Thorup K, Rahbek C. Changes in timing of autumn migration in North European songbird populations. Ardea. 2006;94(3):527-536.

Author

Tøttrup, Anders Peter ; Thorup, Kasper ; Rahbek, Carsten. / Changes in timing of autumn migration in North European songbird populations. In: Ardea. 2006 ; Vol. 94, No. 3. pp. 527-536.

Bibtex

@article{00b0e4a06f7211dcbee902004c4f4f50,
title = "Changes in timing of autumn migration in North European songbird populations",
abstract = "Although studies of changes in the timing of passerine spring migrationare numerous, less is known about timing of their autumn departure.We present phenological data on 22 species based on mist-netted birdscaught on the Baltic island of Christians{\o} during autumn migrationbetween 1976 and 1997. We used least square and quantile regressionto test for changes in departure time of the last individuals and the dateat which 5{\%}, 50{\%} and 95{\%} of the season total remaining to be trapped(corrected for catch effort). For the entire group of 22 migrants therewas no overall change in median departure (-0.0426 days year-1, P =0.40). Testing the 12 species for which the entire migration period wasincluded (thus excluding many long-distance migrants), we found anoverall earlier departure (-0.18 days year-1, P = 0.007). Short-distancemigrants tended to show earlier departure, while long-distance migrantsonly showed advanced departure amongst the last individuals to leave.The magnitude of change in departure time was correlated with migrationdistance, longer distance migrants showing the least change.Overall, timing of autumn migration was more variable between speciesthan the unidirectional change reported in studies of spring arrival.",
author = "T{\o}ttrup, {Anders Peter} and Kasper Thorup and Carsten Rahbek",
note = "Key words: autumn migration, Northern Europe, passerines, phenology, population parts",
year = "2006",
language = "English",
volume = "94",
pages = "527--536",
journal = "Ardea",
issn = "0373-2266",
publisher = "Nederlandse Ornithologische Unie",
number = "3",

}

RIS

TY - JOUR

T1 - Changes in timing of autumn migration in North European songbird populations

AU - Tøttrup, Anders Peter

AU - Thorup, Kasper

AU - Rahbek, Carsten

N1 - Key words: autumn migration, Northern Europe, passerines, phenology, population parts

PY - 2006

Y1 - 2006

N2 - Although studies of changes in the timing of passerine spring migrationare numerous, less is known about timing of their autumn departure.We present phenological data on 22 species based on mist-netted birdscaught on the Baltic island of Christiansø during autumn migrationbetween 1976 and 1997. We used least square and quantile regressionto test for changes in departure time of the last individuals and the dateat which 5%, 50% and 95% of the season total remaining to be trapped(corrected for catch effort). For the entire group of 22 migrants therewas no overall change in median departure (-0.0426 days year-1, P =0.40). Testing the 12 species for which the entire migration period wasincluded (thus excluding many long-distance migrants), we found anoverall earlier departure (-0.18 days year-1, P = 0.007). Short-distancemigrants tended to show earlier departure, while long-distance migrantsonly showed advanced departure amongst the last individuals to leave.The magnitude of change in departure time was correlated with migrationdistance, longer distance migrants showing the least change.Overall, timing of autumn migration was more variable between speciesthan the unidirectional change reported in studies of spring arrival.

AB - Although studies of changes in the timing of passerine spring migrationare numerous, less is known about timing of their autumn departure.We present phenological data on 22 species based on mist-netted birdscaught on the Baltic island of Christiansø during autumn migrationbetween 1976 and 1997. We used least square and quantile regressionto test for changes in departure time of the last individuals and the dateat which 5%, 50% and 95% of the season total remaining to be trapped(corrected for catch effort). For the entire group of 22 migrants therewas no overall change in median departure (-0.0426 days year-1, P =0.40). Testing the 12 species for which the entire migration period wasincluded (thus excluding many long-distance migrants), we found anoverall earlier departure (-0.18 days year-1, P = 0.007). Short-distancemigrants tended to show earlier departure, while long-distance migrantsonly showed advanced departure amongst the last individuals to leave.The magnitude of change in departure time was correlated with migrationdistance, longer distance migrants showing the least change.Overall, timing of autumn migration was more variable between speciesthan the unidirectional change reported in studies of spring arrival.

M3 - Journal article

VL - 94

SP - 527

EP - 536

JO - Ardea

JF - Ardea

SN - 0373-2266

IS - 3

ER -

ID: 1157890