Röhrichtsterben beeinflusst Brutvervalten des Haubentauchers (Podiceps cristatus) am Dümmer (Niedersachsen, Deutschland).
Autor: | Marxmeier, Ulrike, Duttmann, Heinz |
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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 |
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