La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Test of an inexpensive camera set for nest and animal activity observations.
Auteurs :	Thomas Schaefer, Auteur ; Georg Heine, Auteur
Type de document :	Article
Dans :	Vogelwarte (41(4) Dezember 2002)
Article en page(s) :	295-298
Langues:	Allemand
Résumé :	In order to determine predators of baited nests, we developed a photo trap system that bypasses undesired functions of simple AF rangefinder cameras. The system can be fitted with different triggers such as motion sensitive devices and light barriers and can be used in different setups. We used simple rangefinder cameras with automatic film advance and databack and tested 15 systems during six months in 2000 and 2001 under field conditions at nests baited with infertile eggs of the Blackcap (Sylvia atricapilla). The time of each event could be determined, and successive pictures allowed assessing the duration of the event. The system cost ca. EUR 50 without trigger and batteries.

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