| genetic and acoustic population structuring in the okinawa least horseshoe bat: are intercolony acoustic differences maintained by vertical maternal transmission? | the origin and meaning of echolocation call frequency variation within rhinolophid bats is not well understood despite an increasing number of allopatric and sympatric examples being documented. a bimodal distribution of mean regional call frequency within the okinawa-jima island population of rhinolophus cornutus pumilus (rhinolophidae) provided a unique opportunity to investigate geographic call frequency variation early in its development. individual resting echolocation frequencies, partial ... | 2008 | 19120986 |
| maximum likelihood analysis of the complete mitochondrial genomes of eutherians and a reevaluation of the phylogeny of bats and insectivores. | the complete mitochondrial genomes of two microbats, the horseshoe bat rhinolophus pumilus, and the japanese pipistrelle pipistrellus abramus, and that of an insectivore, the long-clawed shrew sorex unguiculatus, were sequenced and analyzed phylogenetically by a maximum likelihood method in an effort to enhance our understanding of mammalian evolution. our analysis suggested that (1) a sister relationship exists between moles and shrews, which form an eulipotyphlan clade; (2) chiropterans have a ... | 2006 | 11675611 |
| geographical variation in echolocation call and body size of the okinawan least horseshoe bat, rhinolophus pumilus (mammalia: rhinolophidae), on okinawa-jima island, ryukyu archipelago, japan. | the okinawan least horseshoe bat, rhinolophus pumilus, is a cave-dwelling species endemic to the central and southern ryukyus, japan. we analyzed variation in the constant frequency (cf) of the echolocation call and in forearm length (fal) of this species on okinawa-jima island on the basis of data for 479 individuals from 11 caves scattered over the island. cf values in samples from six caves, all located in the southwestern half of okinawa-jima, were significantly higher than those in samples ... | 2006 | 16971783 |