La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Frugivory and size variation of animal prey in Black Redstart Phoenicurus ochruros during summer and autumn in south-western Poland
Auteurs :	Grzegorz Orlowski, Auteur ; Jerzy Karg, Auteur ; Joanna Czarnecka, Auteur
Type de document :	Article
Dans :	Ornis Fennica (88(3) 2011)
Article en page(s) :	161-171
Langues:	Anglais
Résumé :	Analyses of faeces of the Black Redstart Phoenicurus ochruros from the countryside of south-western Poland revealed a significant increase in the proportion of plant items (mainly berries of Sambucus nigra/racemosa) between July and October; for animal prey items an inverse trend was found. During summer-autumn, no significant trends in the mass of all animal prey were found. The most numerous animal prey were three genera of ants (Lasius, Formica and Myrmica; 44.1% by number of all animal prey). Large numbers of undamaged seeds of several species of shrubs in the analyzed faeces, including non-native species, indicate that the Black Redstart is a potential disperser of woody plants in rural landscapes of Europe.

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