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Diverse migration strategies with similar investments in movement

Research output: Contribution to conferencePaper/Powerpoint/Abstract

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Diverse migration strategies with similar investments in movement. / Shamoun-Baranes, Judy; Burant, Joseph; van Loon, Emiel; Ross-Smith, Viola; Thaxter, Chris; Stienen, Eric; Bouten, Willem; Camphuysen, Kees.

2017. Paper presented at 11th Conference of the European Ornithologists’ Union, Turku, Finland.

Research output: Contribution to conferencePaper/Powerpoint/Abstract

Harvard

Shamoun-Baranes, J, Burant, J, van Loon, E, Ross-Smith, V, Thaxter, C, Stienen, E, Bouten, W & Camphuysen, K 2017, 'Diverse migration strategies with similar investments in movement', Paper presented at 11th Conference of the European Ornithologists’ Union, Turku, Finland, 18/08/17 - 22/08/17.

APA

Shamoun-Baranes, J., Burant, J., van Loon, E., Ross-Smith, V., Thaxter, C., Stienen, E., ... Camphuysen, K. (2017). Diverse migration strategies with similar investments in movement. Paper presented at 11th Conference of the European Ornithologists’ Union, Turku, Finland.

Author

Shamoun-Baranes, Judy ; Burant, Joseph ; van Loon, Emiel ; Ross-Smith, Viola ; Thaxter, Chris ; Stienen, Eric ; Bouten, Willem ; Camphuysen, Kees. / Diverse migration strategies with similar investments in movement. Paper presented at 11th Conference of the European Ornithologists’ Union, Turku, Finland.101 p.

Bibtex

@conference{1420ce13947b44698fca9b79258f173f,
title = "Diverse migration strategies with similar investments in movement",
abstract = "In several species of birds, migration strategies may differ greatly even within a single population. Migration is often assumed to be a costly endeavour, especially for long distance migrants and these costs are presumablycompensated for by better survival conditions in the non-breeding area. One way to assess the cost of alternative strategies is to study the investment in movement within the context of the entire annual cycle. In this study wecompare trade-offs associated with several migration strategies in a generalist seabird. We used GPS tracking data to quantify lesser black-backed gulls’ movement throughout their annual cycle. The annual cumulativedistance travelled by long distance migrants wintering in west Africa, thousands of kilometres from their breeding colony, did not differ significantly from individuals of the same breeding colony wintering only a few hundred kilometres away. Within a year, birds travelled approximately 30,000 km across all migrations strategies. Short distance migrants returned earlier than long distance migrants. Maximum range, cumulative distance travelled or timing of arrival at the breeding area were not correlated with sex and wing length. Individuals spent only a small proportion of their time in flight and generally spent < 20{\%} of their time at sea throughout an annual cycle, suggesting a reliance on inland resources for many individuals. Studying movement throughout the annual cycle may change our perspective when considering the consequences of different migration strategies.",
author = "Judy Shamoun-Baranes and Joseph Burant and {van Loon}, Emiel and Viola Ross-Smith and Chris Thaxter and Eric Stienen and Willem Bouten and Kees Camphuysen",
year = "2017",
month = "9",
language = "English",
note = "null ; Conference date: 18-08-2017 Through 22-08-2017",

}

RIS

TY - CONF

T1 - Diverse migration strategies with similar investments in movement

AU - Shamoun-Baranes, Judy

AU - Burant, Joseph

AU - van Loon, Emiel

AU - Ross-Smith, Viola

AU - Thaxter, Chris

AU - Stienen, Eric

AU - Bouten, Willem

AU - Camphuysen, Kees

PY - 2017/9

Y1 - 2017/9

N2 - In several species of birds, migration strategies may differ greatly even within a single population. Migration is often assumed to be a costly endeavour, especially for long distance migrants and these costs are presumablycompensated for by better survival conditions in the non-breeding area. One way to assess the cost of alternative strategies is to study the investment in movement within the context of the entire annual cycle. In this study wecompare trade-offs associated with several migration strategies in a generalist seabird. We used GPS tracking data to quantify lesser black-backed gulls’ movement throughout their annual cycle. The annual cumulativedistance travelled by long distance migrants wintering in west Africa, thousands of kilometres from their breeding colony, did not differ significantly from individuals of the same breeding colony wintering only a few hundred kilometres away. Within a year, birds travelled approximately 30,000 km across all migrations strategies. Short distance migrants returned earlier than long distance migrants. Maximum range, cumulative distance travelled or timing of arrival at the breeding area were not correlated with sex and wing length. Individuals spent only a small proportion of their time in flight and generally spent < 20% of their time at sea throughout an annual cycle, suggesting a reliance on inland resources for many individuals. Studying movement throughout the annual cycle may change our perspective when considering the consequences of different migration strategies.

AB - In several species of birds, migration strategies may differ greatly even within a single population. Migration is often assumed to be a costly endeavour, especially for long distance migrants and these costs are presumablycompensated for by better survival conditions in the non-breeding area. One way to assess the cost of alternative strategies is to study the investment in movement within the context of the entire annual cycle. In this study wecompare trade-offs associated with several migration strategies in a generalist seabird. We used GPS tracking data to quantify lesser black-backed gulls’ movement throughout their annual cycle. The annual cumulativedistance travelled by long distance migrants wintering in west Africa, thousands of kilometres from their breeding colony, did not differ significantly from individuals of the same breeding colony wintering only a few hundred kilometres away. Within a year, birds travelled approximately 30,000 km across all migrations strategies. Short distance migrants returned earlier than long distance migrants. Maximum range, cumulative distance travelled or timing of arrival at the breeding area were not correlated with sex and wing length. Individuals spent only a small proportion of their time in flight and generally spent < 20% of their time at sea throughout an annual cycle, suggesting a reliance on inland resources for many individuals. Studying movement throughout the annual cycle may change our perspective when considering the consequences of different migration strategies.

M3 - Paper/Powerpoint/Abstract

ER -

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