Aquatic Ecology

, Volume 42, Issue 4, pp 701–706

Response of waterbirds to alternating clear and turbid water phases in two shallow Mediterranean lakes

  • Enrique Moreno-Ostos
  • Mariano Paracuellos
  • Inmaculada de Vicente
  • Juan C. Nevado
  • Luis Cruz-Pizarro
Article

DOI: 10.1007/s10452-007-9141-z

Cite this article as:
Moreno-Ostos, E., Paracuellos, M., de Vicente, I. et al. Aquat Ecol (2008) 42: 701. doi:10.1007/s10452-007-9141-z

Abstract

Albufera de Adra (Southern Spain) constitutes an internationally-recognised marsh for waterbirds; important populations of some endangered species such as White-headed Duck and Red-crested Pochard overwinter and breed in its two shallow permanent lakes (Lake Honda and Lake Nueva). In a recently published article, we revealed the factors responsible for the irregular alternation between phytoplankton-dominated turbid phases and macrophyte-dominated clear water phases in Lake Honda and Lake Nueva. In this note, we try to clarify the impact of such an alternation of equilibrium states on the waterbird dynamics. Marked increments in abundance, and brood recruitment of dabbling and diving waterbirds were recorded during the clear water phases in contrast with the turbid water phases, as the increase of macrophytes associated with increased water transparency attract waterbirds for available food. Implications for ecosystem management, restoration and conservation are identified.

Keywords

Albufera de Adra Alternative equilibria states Clear water phase Macrophytes Plankton Netta rufina Oxyura leucocephala Shallow lakes Waterbirds 

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • Enrique Moreno-Ostos
    • 1
    • 2
  • Mariano Paracuellos
    • 3
  • Inmaculada de Vicente
    • 2
  • Juan C. Nevado
    • 4
  • Luis Cruz-Pizarro
    • 2
  1. 1.Flumen Research Group. Department of EcologyUniversity of BarcelonaBarcelonaSpain
  2. 2.Institute of Water ResearchUnivesity of GranadaGranadaSpain
  3. 3.Aquatic Ecology and Aquiculture Research GroupUniversity of AlmeríaAdra (Almeria)Spain
  4. 4.Department of Flora and FaunaEnvironmental Council. Andalusian GovernmentAlmeriaSpain

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