We conducted an elevational transect survey of mammals on the highest peak in the Mingan Mountains of Aurora and Nueva Ecija provinces in the central Sierra Madre Range of Luzon from May to August 2006 and documented 35 species of mammals. These included one shrew (Soricidae), six fruit bats (Pteropodidae), one ghost bat (Megadermatidae), three horseshoe bats (Rhinolophidae), three roundleaf bats (Hipposideridae), four evening bats (Vespertilionidae), one macaque (Cercopithecidae), 12 mice and rats (Muridae), two civets (Viverridae), one wild pig (Suidae), and one deer (Cervidae). Our survey of this small, poorly known mountain range included the discovery of two new species of forest mice (Apomys), a new species of shrew-mouse (Archboldomys), a probable new species of shrew-rat (Rhynchomys), and an unidentified species of tube-nosed bat (Murina). Species richness of bats decreased with increasing elevation, whereas that for native non-volant small mammals increased with increasing elevation up to 1677 m, then declined at 1681 and 1785 m. Statistically significant diel activity and bait preferences were observed among the native non-volant small mammals. Only the two species of small forest mice (Apomys microdon and A. musculus) were captured exclusively above ground; the other non-volant small mammals were nearly always captured on the ground. The Mingan Mountains, with either three or four endemic species, are clearly a significant center of mammalian endemism, deserving of conservation.
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Vol. 2011 • No. 2