Can noxious odours effectively protect clutches of ground-nesting birds?

Autor(en): Duettmannn, Heinz
Lettau, Karsten
Barkow, Andreas
Stichwörter: ARTIFICIAL NESTS; CURLEW NUMENIUS-ARQUATA; FOX PREDATION; Lapwing; LAPWINGS VANELLUS-VANELLUS; NONLETHAL CONTROL; odour repellents; Ornithology; PREDATION RATES; predator control; REAL; REPELLENTS; SUCCESS; WAXES; Zoology
Erscheinungsdatum: 2007
Herausgeber: NEDERLANDSE ORNITHOLOGISCHE UNIE
Journal: ARDEA
Volumen: 95
Ausgabe: 2
Startseite: 267
Seitenende: 274
Zusammenfassung: 
in search for an alternative to lethal methods of predator control, we tested the efficacy of two noxious odours, Hukinol and Hundeschreck, as predator repellents in field experiments with artificial and real nests. Hukinol produces a strong human scent, whereas Hundeschreck is a combination of minerals, plant extracts, and pelargonic acid. In two field experiments with artificial nests exposed in open landscapes of Western Lower Saxony, we found no evidence for a longer survival rate of nests treated with the odour repellents. The same result was obtained in a pilot study with real nests of Lapwing Vanellus vanellus. In the latter study half of the nests were treated with Hukinol, the others were used as controls. In summary, both chemicals show little promise in reducing predation-dependent nest failure in ground-nesting birds.
ISSN: 03732266
DOI: 10.5253/078.095.0209

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