Lesser black-backed gulls (Larus fuscus) consuming swimming crabs: An important link in the food web of the southern North Sea

2013 ◽  
Vol 119 ◽  
pp. 71-78 ◽  
Author(s):  
Henriette Schwemmer ◽  
Philipp Schwemmer ◽  
Siegfried Ehrich ◽  
Stefan Garthe
Keyword(s):  
Food Web ◽  
North Sea ◽  
Southern North Sea ◽  
Important Link ◽  
Larus Fuscus ◽  
Swimming Crabs

Combining efforts to make maximum sustainable yields and good environmental status match in a food-web model of the southern North Sea

2016 ◽  
Vol 331 ◽  
pp. 17-30 ◽  
Author(s):  
Moritz Stäbler ◽  
Alexander Kempf ◽  
Steven Mackinson ◽  
Jan Jaap Poos ◽  
Clement Garcia ◽  
...  
Keyword(s):  
Food Web ◽  
North Sea ◽  
Southern North Sea ◽  
Environmental Status ◽  
Good Environmental Status ◽  
Food Web Model

scholarly journals North Sea ecosystem change from swimming crabs to seagulls

2012 ◽  
Vol 8 (5) ◽  
pp. 821-824 ◽  
Author(s):  
C. Luczak ◽  
G. Beaugrand ◽  
J. A. Lindley ◽  
J-M. Dewarumez ◽  
P. J. Dubois ◽  
...  
Keyword(s):  
Food Web ◽  
North Sea ◽  
Terrestrial Ecosystems ◽  
Ecosystem Change ◽  
Sea Temperature ◽  
The North ◽  
The North Sea ◽  
Important Food Source ◽  
Induced Changes ◽  
Swimming Crabs

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.

Assessing the structure and functioning of the southern North Sea ecosystem with a food-web model

2018 ◽  
Vol 165 ◽  
pp. 280-297 ◽  
Author(s):  
Moritz Stäbler ◽  
Alexander Kempf ◽  
Axel Temming
Keyword(s):  
Food Web ◽  
North Sea ◽  
Southern North Sea ◽  
Food Web Model

Detrital zircon geochronology and heavy mineral analysis as complementary provenance tools in the presence of extensive weathering, reworking and recycling: the Neogene of the southern North Sea Basin

2021 ◽  
pp. 1-13
Author(s):  
Jasper Verhaegen ◽  
Hilmar von Eynatten ◽  
István Dunkl ◽  
Gert Jan Weltje
Keyword(s):  
North Sea ◽  
Chemical Weathering ◽  
Heavy Mineral ◽  
Mineral Analysis ◽  
Provenance Analysis ◽  
Detrital Zircon Geochronology ◽  
Southern North Sea ◽  
Variable Heavy ◽  
Mineral Data ◽  
Heavy Mineral Analysis

Abstract Heavy mineral analysis is a long-standing and valuable tool for sedimentary provenance analysis. Many studies have indicated that heavy mineral data can also be significantly affected by hydraulic sorting, weathering and reworking or recycling, leading to incomplete or erroneous provenance interpretations if they are used in isolation. By combining zircon U–Pb geochronology with heavy mineral data for the southern North Sea Basin, this study shows that the classic model of sediment mixing between a northern and a southern source throughout the Neogene is more complex. In contrast to the strongly variable heavy mineral composition, the zircon U–Pb age spectra are mostly constant for the studied samples. This provides a strong indication that most zircons had an initial similar northern source, yet the sediment has undergone intense chemical weathering on top of the Brabant Massif and Ardennes in the south. This weathered sediment was later recycled into the southern North Sea Basin through local rivers and the Meuse, leading to a weathered southern heavy mineral signature and a fresh northern heavy mineral signature, yet exhibiting a constant zircon U–Pb age signature. Thus, this study highlights the necessity of combining multiple provenance proxies to correctly account for weathering, reworking and recycling.

scholarly journals Macrofauna as a major driver of bentho‐pelagic exchange in the southern North Sea

2021 ◽  
Author(s):  
Andreas Neumann ◽  
Justus E. E. Beusekom ◽  
Annika Eisele ◽  
Kay‐Christian Emeis ◽  
Jana Friedrich ◽  
...  
Keyword(s):  
North Sea ◽  
Southern North Sea
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