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An initial estimate of age at first return and breeding in Madeiran storm-petrels Oceanodroma castro
Bried, J.; Bolton, M. (2005). An initial estimate of age at first return and breeding in Madeiran storm-petrels Oceanodroma castro. Atlant. Seabirds 7(2): 71-74
In: Atlantic Seabirds. Seabird Group and Dutch Seabird Group: Sandy, Bedfordshire. ISSN 1388-2511, more
Peer reviewed article  

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Keywords
    Oceanodroma castro (Harcourt, 1851) [WoRMS]; Marine

Authors  Top 
  • Bried, J.
  • Bolton, M.

Abstract
    The Madeiran Storm-petrel Oceanodroma castro is classified as “Rare” in Europe; however, its population dynamics and its demographic parameters remain unknown. Here, we provide the first estimates of the age at first return to the colony and age at first breeding in this species, using our data from a five-year demographic study conducted in the Azores (subtropical northern Atlantic). On average, Madeiran Storm-petrels return to their birth colony during their third year. They can breed when two years old, and the reproductive performances of first-time breeders are similar to those of experienced individuals.

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