| altai pika (ochotona alpina) alarm calls: individual acoustic variation and the phenomenon of call-synchronous ear folding behavior. | non-hibernating pikas collect winter food reserves and store them in hay piles. individualization of alarm calls might allow discrimination between colony members and conspecifics trying to steal food items from a colony pile. we investigated vocal posture, vocal tract length, and individual acoustic variation of alarm calls, emitted by wild-living altai pikas ochotona alpina toward a researcher. recording started when a pika started calling and lasted as long as possible. the alarm call series ... | 2018 | 29892847 |
| comparative anatomy and systematic implications of the turbinal skeleton in lagomorpha (mammalia). | in order to elucidate the systematic relevance of the turbinal skeleton in lagomorpha the ethmoidal regions of 6 ochotonid, 21 leporid, and 2 outgroup species (sciurus vulgaris, tupaia sp.) species were investigated by high-resolution computed tomography (μct). number and shape of turbinals correspond to major clades and to several genera. all lagomorpha under study have a deeply excavated nasoturbinal that is continuous with the lamina semicircularis; a feature likely to be an autapomorphy of l ... | 2014 | 25312363 |