Röhrichtsterben beeinflusst Brutvervalten des Haubentauchers (Podiceps cristatus) am Dümmer (Niedersachsen, Deutschland).

Autor: Marxmeier, Ulrike, Duttmann, Heinz
Zdroj: Journal fuer Ornithologie; jan2002, Vol. 143 Issue 1, p15, 18p
Abstrakt: Examines whether the decrease in the breeding population of the Great Crested Grebe in Lake D uumi mer in the 1990s was due to changes in prey availability or to changes in nesting sites. Clutch size; Mode time interval between two feedings; Relation of changes in reproductive behavior to nesting sites.
Databáze: Supplemental Index