A revision of vulture feeding classification
| Autor: | Carmen Guerra, Marta Linde-Medina, Josep Antoni Alcover |
|---|---|
| Přispěvatelé: | Agencia Estatal de Investigación (España), European Commission, Ministerio de Economía, Industria y Competitividad (España) |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Zoology 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Discriminant function analysis biology.animal medicine Animals Skull morphology Morphological integration Falconiformes Vulture Gyps indicus biology Skull Feeding Behavior Gypohierax angolensis biology.organism_classification 030104 developmental biology medicine.anatomical_structure Limb bones Feeding behaviour Animal Science and Zoology Scavenging Convergence |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | Pioneering fieldwork identified the existence of three feeding groups in vultures: gulpers, rippers and scrappers. Gulpers engulf soft tissue from carcasses and rippers tear off pieces of tough tissue (skin, tendons, muscle), whereas scrappers peck on small pieces of meat they find on and around carcasses. It has been shown that these feeding preferences are reflected in the anatomy of the skull and neck. Here, we demonstrate that these three feeding groups also emerge when body core and limb bones are added to the analysis. However, the resulting classification differs from that which is based on skull morphology for three species, namely Gypaetus barbatus (Linnaeus, 1758), Gypohierax angolensis (Gmelin, 1788) and Gyps indicus (Scopoli, 1786). The proposed classification would improve the interrelationship between form and feeding habits in vultures. Moreover, the results of this study reinforce the value of the categorisation system introduced by Kruuk (1967), and expanded by König (1974, 1983), Houston (1988) and Hertel (1994), as it would affect not only the skull morphology but the whole-body architecture. This paper contributes to the research project CGL2016-79795-R funded by the Agencia Estatal de Investigación (Ministerio de Economía, Industria y Competitividad)/ Fondo Europeo de Desarrollo Regional (FEDER). |
| Databáze: | OpenAIRE |
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