Biodiversity & Conservation

, Volume 11, Issue 6, pp 975–985

Factors influencing the decline of a Bonelli's eagle Hieraaetus fasciatus population in southeastern Spain: demography, habitat or competition?

  • Martina Carrete
  • José Antonio Sánchez-Zapata
  • José Enrique Martínez
  • Miguel Ángel Sánchez
  • José Francisco Calvo
Article

DOI: 10.1023/A:1015856924451

Cite this article as:
Carrete, M., Sánchez-Zapata, J.A., Martínez, J.E. et al. Biodiversity and Conservation (2002) 11: 975. doi:10.1023/A:1015856924451

Abstract

We investigated three possible causes of territory desertion among Bonelli's eagles Hieraaetus fasciatus in Murcia (southeastern Spain): low demographic parameters, low habitat quality and competition with Golden eagles Aquila chrysaetos. From 1983 to 1997, we surveyed a Bonelli's eagle population. Abandoned and occupied territories were compared to find differences in demographic parameters (flight rate, productivity and mortality) or habitat characteristics. Mortality was significantly higher in abandoned territories. Abandoned territories also had larger areas of forest and extensive agriculture, while occupied territories had more shrublands. Competition with Golden eagles was not a determinant of territorial abandonement but interacted with human persecution of the species. Management implications are discussed.

CompetitionConservationDemographyFlagship speciesHabitatHieraaetus fasciatus

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • Martina Carrete
    • 1
  • José Antonio Sánchez-Zapata
    • 2
  • José Enrique Martínez
    • 1
  • Miguel Ángel Sánchez
    • 3
  • José Francisco Calvo
    • 1
  1. 1.Departamento de Ecología e HidrologíaUniversidad de Murcia, Campus de EspinardoMurciaSpain
  2. 2.Departamento de Biología AplicadaUniversidad Miguel Hernández, Ctra. de Beniel km 3.2, Area de EcologíaOrihuela, AlicanteSpain
  3. 3.Ctra. de los Jerónimos 69MurciaSpain