Inter- und intraspezifische Nahrungskonkurrenz bei Altweltgeiern

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Video in TIB AV-Portal: Inter- und intraspezifische Nahrungskonkurrenz bei Altweltgeiern

Formal Metadata

Title
Inter- und intraspezifische Nahrungskonkurrenz bei Altweltgeiern
Alternative Title
Ecological Differentiation of Feeding Habits in Old World Vultures
Author
Contributors
License
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF Signature
D 1374
Publisher
Release Date
1981
Language
German
Producer
Claus König (Stuttgart)

Technical Metadata

IWF Technical Data
Film, 16 mm, LT, 151 m ; F, 14 min

Content Metadata

Subject Area
Abstract
Darstellung von Differenzierungen in der Ernährungsweise bei acht Geierarten (die Aufnahmen sind aus Transvaal/Südafrika). Dokumentation der Faktoren, welche die Nahrungskonkurrenz mildern. Inter- und intraspezifische Rangordnungen. 1. Pickende Arten: Kappengeier (Necrosyrtes monachus), Schmutzgeier (Neophron percnopterus); 2. Wühlende Arten: Gänsegeier (Gyps fulvus), Weißrückengeier (Gyps africanus), Fahlgeier (Gyps coprotheres); 3. Reißende Arten: Mönchsgeier (Aegypius monachus), Ohrengeier (Aegypius tracheliotus), Wollkopfgeier (Trigonoceps occipitalis).
Vultures often gather in large numbers on carcasses. This leads inevitably to inter- and intraspecific competition for food. The different preferences of the individual species for certain parts of carcasses alleviates this to some extent. With the exception of the Bearded Vulture (Gypaetus barbatus) and the Palm-Nut Vulture (Gypohierax angolensis), the old world vultures can be divided into three feeding types: 1) pulling; 2) tearing; 3) pecking species. Species of the genus Gyps belong to type 1; with the exception of the Hooded (Necrosyrtes monachus) and the Egyptian vulture (Neophron percnopterus) which both are type 3 feeders, all other species belong to type 2.
Keywords Geier / Weißrückengeier Weißrückengeier Geier / Wollkopfgeier Wollkopfgeier Geier / Schmutzgeier Schmutzgeier Geier / Kappengeier Kappengeier Kapgeier Geier / Fahlgeier Fahlgeier Geier / Ohrengeier Ohrengeier Geier / Gänsegeier Gänsegeier Geier / Mönchsgeier Mönchsgeier Gyps africanus Trigonoceps occipitalis Neophron percnopterus Necrosyrtes monachus Gyps coprotheres Aegypius tracheliotus Gyps fulvus Aegypius monachus Nahrungsaufnahme / Falconiformes Rangordnung / Aves Nahrungskonkurrenz / Aves food competition / Aves ingestion / Falconiformes pecking order / Aves Aegypius monachus Gyps fulvus Aegypius tracheliotus Gyps coprotheres Necrosyrtes monachus Neophron percnopterus Trigonoceps occipitalis Gyps africanus monk vulture Eurasian black vulture griffon vulture lappet-faced Vulture eared vulture cape vulture hooded vulture Egyptian vulture white-headed vulture white-backed vulture

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