DIFFERENTIALAGE-RELATED PHENOLOGY IN LESSER BLACK-BACKED GULL LARUS FUSCUS WINTERING IN THE MALAGAAREA

SUMMARY.—We aimed to identify the existence of age-classes groups that shared similar seasonal patterns in migration movements for the lesser black-backed gull Larus fuscus. The gull age-classes groups were defined as sets of age-classes that were present in the harbour of Malaga (South of Spain) si...

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Bibliographic Details
Main Authors: Fenología Diferencial, Relacionada Con, La Edad, En La, Gaviota Sombría, Larus Fuscus, Desde Elárea, De Invernada, De Málaga, Salvador García-barcelona, José C. Báez, Ana Luz Márquez, Alba Estrada, Raimundo Real, David Macías
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
Gaviota
Hora
gaviota sombría
Lesser black-backed gull
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.670.4113
http://gull-research.org/papers/papers6/salvador1496.pdf
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Summary:SUMMARY.—We aimed to identify the existence of age-classes groups that shared similar seasonal patterns in migration movements for the lesser black-backed gull Larus fuscus. The gull age-classes groups were defined as sets of age-classes that were present in the harbour of Malaga (South of Spain) simultaneously during the wintering season. We distinguished ten groups of age-classes, which can be subsequently lumped into four big age-class groups: (i) immature stage-class, (ii) young breeders, (iii) age-classes from 6 to 11 years old, and (iv) age-classes older than 11 years old. Our present results supported the ‘dominance and arrival time model’. RESUMEN.—Se pretendía identificar la existencia de grupos de clases de edad con un patrón esta-cional similar en la gaviota sombría Larus fuscus. Los grupos se definieron como conjuntos de clases de edad que estuvieron presentes de forma simultánea siguiendo un mismo patrón temporal en el puer-to de Málaga durante la temporada de invernada. Se distinguieron diez grupos de clases de edad, los cuales a su vez pueden agruparse en cuatro grandes grupos: (i) inmaduros, (ii) jóvenes reproductores, (iii) clases de edad de 6 a 11 años y (iv) clases de aves mayores de 11 años. Nuestros resultados apo-yan la teoría de la ‘posición dominante y el modelo de la hora de llegada’.

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