A carregar...
Publicação
Shorebirds assemblages as indicators of ecological status and sediment quality in the Ria Formosa lagoon
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 2.69 MB | Adobe PDF |
Autores
Orientador(es)
Resumo(s)
The Ria Formosa lagoon is a site of international environmental importance, included
into Natura 2000 Network, Ramsar Convention and European Water Framework
Directive (WFD). This thesis focuses on the study of shorebird assemblages feeding on
intertidal flats in relation with physical properties of the sediments, meiobenthos and
macrobenthos communities. The study sites were presumably different in ecological
status, both located close to the WFD intercalibration sites with defined ecological
status. The study sites did not differ significantly by sediment granulometry, but
differed in total organic content and redox potential of the sediment. Bird communities
consisted of the same species but differed in relative densities between sites. No
relation was found between bird densities and their benthic prey. The other habitat
characteristics, tidal channels, disturbance of sediment by shellfishery and distance to
roost sites, presence of complementary feeding sites influenced bird communities.
Descrição
Dissertação de mest., Gestão da Água e da Costa, Faculdade de Ciências e Tecnologia, Univ. do Algarve, 2010
Palavras-chave
Aves Limícolas Macrobenthos Meiobenthos Estado ecológico Ria Formosa