Ecosystem overviews

Azores Ecosystem Overview

State of ecosystem components: Seabirds

Six Procellariformes and four Charadriiformes breed in the ecoregion. These include: Monteiro's storm-petrel (Hydrobates monteiroi), which breeds endemically and is classified globally as "Vulnerable"; over 75% of Cory's shearwater world nesting populations (Calonectris borealis); and about 50% of the European population of the roseate tern (Sterna dougallii).

​There is some indication that the Cory´s shearwater population has declined between 1996 and 2001, but no census has been conducted since after this period. The tern populations have been monitored since 1989 and have remained relatively stable, although they show a slightly downward trend. The breeding numbers of both species of storm-petrel have increased ~8–12% since 2000, as a result of improved habitat management.

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Azores Ecosystem Overview

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