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Biol Lett. 2012 Oct 23;8(5):821-4. doi: 10.1098/rsbl.2012.0474. Epub 2012 Jul 4.

North Sea ecosystem change from swimming crabs to seagulls.

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1
Centre National de la Recherche Scientifique, LOG UMR 8187, Université Lille 1, France.

Abstract

A recent increase in sea temperature has established a new ecosystem dynamic regime in the North Sea. Climate-induced changes in decapods have played an important role. Here, we reveal a coincident increase in the abundance of swimming crabs and lesser black-backed gull colonies in the North Sea, both in time and in space. Swimming crabs are an important food source for lesser black-backed gulls during the breeding season. Inhabiting the land, but feeding mainly at sea, lesser black-backed gulls provide a link between marine and terrestrial ecosystems, since the bottom-up influence of allochthonous nutrient input from seabirds to coastal soils can structure the terrestrial food web. We, therefore, suggest that climate-driven changes in trophic interactions in the marine food web may also have ensuing ramifications for the coastal ecology of the North Sea.

PMID:
22764111
PMCID:
PMC3441004
DOI:
10.1098/rsbl.2012.0474
[Indexed for MEDLINE]
Free PMC Article
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