![]() ![]() Forest management activities, especially logging, that reduce densities of hollow-bearing trees in the landscape are therefore likely to decrease the long-term carrying capacity of the landscape for the powerful owl. The diet of powerful owls (Ninox strenua) living at Christmas Hills, 35 km north-east of Melboume, was examined by analysis of 686 regurgitated pellets. The dietary reliance upon hollow-dependent mammals in foothill forests (averaging >70%) is of conservation concern, especially when non-hollow-dependent prey are rare. The breeding season diet of the Powerful Owl Ninox strenua at Brisbane, Queensland. Typically, a higher percentage of powerful owl diet comprised birds closer to cleared land. ![]() There was geographical dietary variation between coastal and foothill forest sites, with the sugar glider (Petaurus breviceps) and birds consumed more frequently in foothill forests, whereas the common ringtail possum (Pseudocheirus peregrinus) was frequently consumed only in coastal forests. The greater glider (Petauroides volans) was the dominant dietary item across the region in terms of both frequency of consumption and biomass contribution. Mammals dominated the diet at all sites, but birds were also consumed regularly. This study reports the diet of the powerful owl (Ninox strenua) in East Gippsland, from a dataset of 2009 vertebrate prey items collected from 53 sites. Powerful Owl Ninox strenua diet from two sites in the Australian Capital Territory Author: Olsen, J Judge, D Trost, S Rose, A. Geographic variation in the diet of the powerful owl (Ninox strenua) at a local scale Geographic variation in the diet of the powerful owl (Ninox strenua) at a local scale ![]()
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