The Short-Eared Owls of Muskeget Island

Snowy Owl Predation on Short-eared Owls

A problem confronting Snowy Owls (Nyctea scandiaca) in their southern incursions is the shortage of food. This difficulty is raised by the presence of other raptors that feed on small mammals. This note shows how little food is found by migrant Snowy Owls and indicates a complex temporary ecological solution. At Tatoosh Island, Washington (48”24’ N, 124” 44’ W) on 25 November 1973, we observed ...

DIFFERENTIAL mIGRATION BY SEx IN NORTH AmERICAN SHORT-EARED OWLS

Differential migration of the sexes is known in over 60 bird species and may be the predominant pattern in migratory birds. Identifying the causes of differential migration has been difficult, in part because sex-specific migratory patterns have yet to be described for a majority of species. We used the Internet specimen-data portal Ornis to compile sex-specific data on the seasonal distributio...

Status of the Short-eared Owl (Asio flammeus) in Alberta

phylogeography and genetic diversity of the lesser mouse- eared bat (myotis blythii) in iran

in current study, 63 samples of bat populations collected from differ regions were used for evaluating the geographic variations. twenty cranial and dental characters for traditional morphometric and landmarks method on the ventral, dorsal skull and mandible for geometry morphometric studies were used. statistical analyses of traditional morphometric and geometry morphometric data indicated low...

Short Term Growth Rate of Acropora downingi in the Coral Reef of Hengam Island, the Persian Gulf

In the Persian Gulf, Acropora- dominated coral reefs have been damaged by global and local disturbances. Inversion of coral colonies mostly occur due to anchoring and fishing in many coral reefs, particularly those established nearby human societies, like the coral reef of Hengam Island, in the Persian Gulf. The short term growth rates (weight increment) of inversely and normally transplanted c...