ABA 2013 Figure 1.3.

ABA 2013 Figure 1.3.

ABA 2013 01 03 

Arctic Biodiversity Assessment (ABA) 2013.

Figure 1.3. In 1987, the breeding population of common murre Uria aalge in the Barents Sea collapsed as a result of concomitantly low populations of their preferred prey, 0-group Atlantic cod Gadus morhua, capelin Mallotus villosus and 0-group Atlantic herring Clupea harengus. These low fish population levels were probably caused by a combination of climate variability, ocean current variability and overharvest with diff erent weight of these causes between populations. Since such a situation of concomitantly low populations has not occurred since then (upper panel), the annual common murre population growth on Hornøya in NE Norway has remained high, and the murre population on this island is now higher than before the collapse (from Erikstad et al. 2013).

 

Conservation of Arctic Flora and Fauna (CAFF)

www.caff.is 

The data can be downloaded freely.

Users are requested to reference it source.

Meltofte, H. (ed.) 2013. Arctic Biodiversity Assessment. Status and trends in Arctic biodiversity. Conservation of Arctic Flora and Fauna, Akureyri.

 
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