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Marine Ecology Progress Series

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MEPS 638:177-190 (2020)  -  DOI: https://doi.org/10.3354/meps13252

Spatial synchrony of breeding success in the blacklegged kittiwake Rissa tridactyla reflects the spatial dynamics of its sandeel prey

Agnes B. Olin1,2,*, Neil S. Banas1, Peter J. Wright3, Michael R. Heath1, Ruedi G. Nager2

1University of Strathclyde, Livingstone Tower, Glasgow G1 1XH, UK
2University of Glasgow, Graham Kerr Building, Glasgow G12 8QQ, UK
3Marine Scotland Science, Marine Laboratory, Aberdeen AB11 9DB, UK
*Corresponding author:

ABSTRACT: Synchrony in demographic rates between spatially disjunct populations is a widespread phenomenon, although the underlying mechanisms are often not known. This synchrony and its spatial patterns can have important consequences for the long-term persistence of metapopulations and can also be used to infer drivers of population dynamics. Here, we examined spatial patterns of synchrony in the breeding success of black-legged kittiwakes Rissa tridactyla in the UK, using an extensive dataset on kittiwake breeding success and 2 different ways of measuring synchrony: one reflecting synchrony in inter-annual fluctuations only (rdiff) and one reflecting synchrony in both inter-annual fluctuations and long-term trends (r). We found that between-colony synchrony in breeding success decreased with distance up to just over 200 km but that some colony pairs showed stronger or weaker synchrony than expected based on distance. This was also reflected in the configuration of spatially coherent clusters of kittiwake colonies with synchronous breeding success. Further, we compared the support for different drivers of these spatial patterns, including trophic interactions and weather conditions. We found that the spatial dynamics of the kittiwakes’ main prey in this region, the lesser sandeel Ammodytes marinus, appeared to play some role in generating synchrony in long-term patterns, but their role in generating synchrony in inter-annual fluctuations was less clear. The study shows that examining spatial patterns in synchrony can provide useful information for inferring potential drivers and the spatial scale over which they are acting.


KEY WORDS: Spatial population dynamics · Spatial autocorrelation · Seabird · Sand lance · North Sea · Forage fish · Cluster analysis


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Cite this article as: Olin AB, Banas NS, Wright PJ, Heath MR, Nager RG (2020) Spatial synchrony of breeding success in the blacklegged kittiwake Rissa tridactyla reflects the spatial dynamics of its sandeel prey. Mar Ecol Prog Ser 638:177-190. https://doi.org/10.3354/meps13252

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