DIET SHIFTS OF BLACK-CHESTED EAGLES (GERANOAETUS-MELANOLEUCUS) FROM NATIVE PREY TO EUROPEAN RABBITS IN CHILE

Simple item page
dc.contributor.authorPAVEZ, EF
dc.contributor.authorGONZALEZ, CA
dc.contributor.authorJIMENEZ, JE
dc.date.accessioned2025-01-23T19:22:17Z
dc.date.available2025-01-23T19:22:17Z
dc.date.issued1992
dc.description.abstractFor two years we studied the feeding ecology of Black-chested Eagles (Geranoaetus melanoleucus) in San Carlos de Apoquindo, central Chile. We estimated the diet of eagles using three different methods and evaluated the abundance of introduced European Rabbits (Oryctolagus cuniculus) throughout one year. Eagles preyed in decreasing order of frequency on mammals, reptiles, insects and birds. The biomass component of insects in the diet was negligible. At the species level, the European Rabbit was the most frequently consumed prey (43.9% by number and 81.7% by biomass). The diet composition changed only slightly throughout the year. During non-breeding seasons birds and insects were not consumed. Depending on the technique used, we found differences in the estimated diet. Birds were underestimated and insects were overestimated by direct observations of prey captures and transportations. In contrast, insects were underestimated by the analysis of prey remains. At the class level, the analysis of regurgitated pellets seems to represent the diet of eagles better. European Rabbits were present throughout the year in the study site, peaking during the eagles' breeding season, when kittens were abundant. Eagles preyed preferentially on small rabbits and apparently avoided large individuals. Eagles have increased their consumption of European Rabbits over time as did foxes in the study area.
dc.fuente.origenWOS
dc.identifier.issn0892-1016
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/99006
dc.identifier.wosidWOS:A1992HW29300007
dc.issue.numero1
dc.language.isoen
dc.pagina.final32
dc.pagina.inicio27
dc.revistaJournal of raptor research
dc.rightsacceso restringido
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.titleDIET SHIFTS OF BLACK-CHESTED EAGLES (GERANOAETUS-MELANOLEUCUS) FROM NATIVE PREY TO EUROPEAN RABBITS IN CHILE
dc.typeartículo
dc.volumen26
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
Files
Collections
Artículos de revistas