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Evidence of Occasional Re-Laying in the British Storm-Petrel (Hydrobates pelagicus)

Eduardo Mínguez
Colonial Waterbirds
Vol. 20, No. 1 (1997), pp. 102-104
Published by: Waterbird Society
DOI: 10.2307/1521770
Stable URL: http://www.jstor.org/stable/1521770
Page Count: 3
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Evidence of Occasional Re-Laying in the British Storm-Petrel (Hydrobates pelagicus)
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Abstract

Procellariiformes is the only order of birds in which every species lays only a single egg. Although there is circumstantial evidence of occasional re-laying in petrels, currently Procellariiformes are considered unable to lay replacement clutches. This paper reports 4 cases of presumed re-laying (3 of these well documented) in the British Storm-petrel (Hydrobates pelagicus), the time elapsed between the laying of their first egg and the second egg and their breeding success. The evidence of occasional re-laying suggests this species can produce 2 eggs within the same breeding season. /// Las Procelariformes son el único orden de aves en el que todas las especies ponen únicamente un huevo. Aunque existe evidencia circunstancial de que los paíños ocasionalmente reponen su huevo, en la actualidad las procelariformes son consideradas a veces como incapaces de realizar puestas de reposición. Este trabajo muestra 4 casos (3 de ellos bien documentados) de aparentes reposiciones en el Paíño Europeo (Hydrobates pelagicus), el tiempo transcurrido entre la puesta del primer huevo y el segundo, y el éxito reproductor. Esta evidencia de reposiciones de puesta ocasionales sugiere una cierta habilidad en esta especie en producir dos huevos en la misma estación reproductora.

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