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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Artificial irrigation ponds and sea coast as foraging habitat for larids breeding in protected wetlands

Texto completo
Autor(es):
Sebastian-Gonzalez, Esther [1, 2] ; Botella, Francisco [1] ; Ovaskainen, Otso [3] ; Delgado, Antonio [4] ; Sanchez-Zapata, Jose Antonio [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Miguel Hernandez Univ, Dept Appl Biol, E-03202 Elche - Spain
[2] Univ Sao Paulo IB USP, Dept Ecol, BR-05508900 Sao Paulo - Brazil
[3] Univ Helsinki, Dept Biosci, FI-00014 Helsinki - Finland
[4] CSIC UGR, Inst Andaluz Ciencias Tierra, E-18100 Granada - Spain
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: MARINE AND FRESHWATER RESEARCH; v. 66, n. 9, p. 831-840, 2015.
Citações Web of Science: 0
Resumo

Questions related to the preservation of foraging sites of breeding birds have received little attention, although they can be of major importance for population persistence. Here, we used stable isotopes and field observations to evaluate the relative importance of man-made irrigation ponds as foraging areas for a larid community of conservation concern. We also studied the habitat preferences of the bird species and determined whether pairs of species co-occurred or avoided each other while foraging. Six species used marine habitats preferentially, whereas three species preferred freshwater habitats, the latter being provided mainly by irrigation ponds. Larids foraged preferentially in large and vegetated ponds located close to the breeding areas, and avoided sandy areas at the coast. We propose that the European Union subsidies related to the creation and alteration of irrigation ponds should be linked to management strategies that maximise pond quality for waterbirds. A third of the species pairs examined showed strong support for the species co-occurring more often than expected by random. Our study showed that larids breeding in mixed colonies segregate spatially in their foraging niche between marine and freshwater environments. Both breeding and foraging habitats need to be addressed when analysing larid population dynamics and conservation strategies. (AU)

Processo FAPESP: 11/17968-2 - Variabilidade estrutural e geográfica em redes mutualísticas de plantas e aves frugívoras
Beneficiário:Esther Sebastián González
Linha de fomento: Bolsas no Brasil - Pós-Doutorado