Apparent survival rate in a bluethroat "Luscinia svecica azuricollis" population in Spain

• Autores: Juan Arizaga Martínez, Javier García Fernández
• Localización: Ardeola, ISSN 0570-7358, Vol. 60, Nº. 2, 2013, págs. 371-376
• Idioma: inglés
• Títulos paralelos:
  • Tasa de supervivencia aparente en el pechiazul "Luscinia svecica azuricollis" en España
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• Resumen

  • Survival estimation is fundamental to understanding population dynamics and has great value from a conservation standpoint. We calculated the apparent survival rate and its variation between age classes and years for a bluethroat Luscinia svecica azuricollis breeding population in spain. Cormack-Jolly-Seber models were used on capture-recapture data obtained during the breeding season from 1998 to 2005. Bluethroats first captured as adults exhibited higher apparent annual survival (0.52) than those first captured as first-year birds (0.31). We discuss these results within a larger geographic context and compare them with other similar species.