Day roosts and roost-site selection of Ikonnikov's whiskered bat, Myotis ikonnikovi, in Nikko, Japan

Abstract

Abstract. Roost-site preferences of the tree-roosting bat (Myotis ikonnikovi) were examined using radio telemetry. Field investigations were conducted in Nikko, Tochigi, Japan, during the summers of 2001 and 2002. We radio-tracked nine bats, and 16 roost trees were found. Bats actively selected snags, more decayed stages of snags and larger stem diameters, compared to available trees in roost plots and trees in random plots. Bats changed roosts every 1 or 2 days. Low roost fidelity indicated that M. ikonnikovi needed many roosting trees. Of these roost trees, six were determined roost-sites: Four roosts were located under bark, one was in a small cavity of a broken stem, and one was in a narrow space between a climbing vine (liana) and a trunk. To improve conservation of M. ikonnikovi, a substantial number of snags and large trees must be preserved in the bat's habitat.

MonasticMyzopoda: the foraging and roosting ecology of a sexually segregated Malagasy endemic bat

“…Our results are similar to those of Yasui et al . (2004) who observed that Myotis ikkonikovi changed roosts every 1 or 2 days, and roosts tended to be close to one another.…”

Complete mitochondrial genome of the Korean ikonnikov’s batMyotis ikonnikovi(Chiroptera: Vespertilionidae)

“…The species is found in the Korean Peninsula, eastern Siberia, the Ussuri region, Sakhalin and Japan (Surhone et al, 2011). Bats of Myotis ikonnikovi use tree hollows for roosting places during daytime as well as overwintering places (Yasui, 2004). In South Korea, bats of M. ikonnikovi have been rarely discovered.…”

Long-lasting effects of historical land use on the current distribution of mammals revealed by ecological and archaeological patterns

“…Small body size is also related to habitat specialisation due to energetic constraints 44 , and habitats for some small mammals are irreplaceable and not readily-recoverable. For example, small mammals, such as tree-roosting bats 46 and the Japanese dwarf flying squirrel 47 , inhabit old-growth forests, which require a long time to recover after human disturbance. Although some small mammals became invasive and exhibited substantial range expansions, these species tended to have life history traits adapted to artificial open habitats and behavioural traits that allowed them to utilize human trade and transport to become established in human-dominated landscapes.…”