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Bird assemblages on a Mediterranean sandy beach: a yearly study

Corrado Battisti
  • Corrado Battisti
    "Torre Flavia” LTER (Long Term Environmental Research) Station, Servizio Ambiente (“aree protette-parchi regionali”), Provincia di Roma, Roma, Italy | c.battisti@provincia.roma.it

Abstract

Around the 2007 yearly cycle, we carried out a transect in a Mediterranean sandy beach (central Italy), a structurally oversimplified ecosystem, elaborating the data in six bimonthly periods and in three longitudinal habitat types. We observed 25 bird species. Assemblages appear heterogeneous at taxonomic-, phenological- and ecological-level. Also normalizing (Margalef index), in winter the beach hosted the richest assemblage, in summer-autumn the lowest. The inner dunal area appears the richest habitat type. Here, the presence of vegetation presumably permits the occurrence of a large availability of different trophic resources for different species. Beaches represent patchy ecosystems with a different availability of resources in space and time that host heterogeneous bird assemblages, different in their ecology and phenology around a yearly cycle.

Keywords

Assemblages, species richness, Margalef index, abundance, beach, central Italy

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Submitted: 2015-01-08 09:57:15
Published: 2015-03-20 12:55:37
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Copyright (c) 2015 Corrado Battisti

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