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La partición del espacio sin territorialidad en las gannets.

Ewan D Wakefield1, Thomas W Bodey, Stuart Bearhop

  • 1School of Biology, University of Leeds, Leeds, UK. e.d.wakefield@leeds.ac.uk

Science (New York, N.Y.)
|June 8, 2013
PubMed
Resumen
Este resumen es generado por máquina.

Las gallinas del norte exhiben áreas de alimentación distintas entre las colonias, impulsadas por la competencia. Esta segregación espacial puede implicar el aprendizaje social, promoviendo la divergencia de las colonias.

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Área de la Ciencia:

  • Comportamiento animal Comportamiento animal.
  • Ecología Ecología Ecología.
  • Ornitología Ornitología.

Sus antecedentes:

  • La cría colonial es común en los animales.
  • Las especies difieren en sus estrategias de búsqueda de alimento, algunas utilizan territorios y otras no.

Objetivo del estudio:

  • Para investigar los patrones de búsqueda de alimento de las gaviotas del norte de 12 colonias.
  • Determinar los factores que influyen en la segregación espacial de las áreas de forrajeo.

Principales métodos:

  • Rastreo por satélite de las gaviotas del norte de 12 colonias.
  • Análisis de rango de hogares de forrajeo y superposición.

Principales resultados:

  • Las gallinas del norte de diferentes colonias se alimentan en áreas en gran medida mutuamente excluyentes.
  • Los rangos de forrajeo específicos de la colonia están influenciados por la competencia dependiente de la densidad.

Conclusiones:

  • La competencia dependiente de la densidad da forma a la segregación de la búsqueda de alimento en las gallinas del norte.
  • La transferencia de información pública puede mejorar la segregación y conducir a la divergencia de las colonias.