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Overheidsorganisatie Rijkswaterstaat

Roofvogels in de Nederlandse wetlands : energie verbruik van mannelijke en vrouwelijke nestjongen bij de Bruine Kiekendief (Circus Aeruginosus)

Jaar: 1995 Documenten: 1
The aim of this study is to estimate the costs of rearing free living male and female Marsh Harrier mestlings that have to compete for a limited amount of food. And to study how and if these costs reflect the secondary sex ratio. This study was conducted in the Lauwersmeer area in the summer of ...