It is a moderately small member of its genus, with a forearm length of. Its head and body length is, while its tail is. Its fur is soft and short. Fur on the back is tricolored, with reddish brown tips, pale middles, and dark roots. The belly fur is pale and grayish in comparison. The tops of its feet and legs are very hairy, as well as the back of its uropatagium. Individuals weigh.
Biology and ecology
Roosting behavior
In the spring and autumn, it primarily roosts in clumps of dead leaves, but it also utilizes tree cavities and peeling tree bark. Trees used for roosting include Litsea acuminata, Neolitsea sericea, Camellia sasanqua, Ardisia sieboldii, Cinnamomum camphora, and Ficus superba. Females switch roosts frequently, moving to a new roost every day in one study. It is colonial, with females forming maternity colonies. These colonies last from June to August; the rest of the year, each sex is solitary. These colonies consist of 2-22 individuals. The frequent roost-switching and variable colony sizes exhibited in maternity colonies suggests a fission-fusion social structure. It is the only known bat that hibernates in snow. In the winter, it has been found roosting within cylindrical or conical holes in snowbanks. It is hypothesized that the bats excavate these cavities themselves. Hibernating within the snow may protect it from predators and prevent water loss; the snow holes likely have a stable thermal environment, as well. The only other mammal species known to hibernate within snow is the polar bear.
Females are strongly philopatric, meaning that they likely stay in their natal ranges. Therefore, females in a given area are closely related, influencing the social structure of colonies. Females give birthin the summer to an offspring called a pup. Pups are weaned in the summer, and some reach sexual maturity in their first autumn. It is a relatively short-lived species for a bat, with maximum agerecorded as 4 and 4.5 years for males and females, respectively.
Parasites and disease
The Ussuri tube-nosed bat is affected by endoparasites such as Vampirolepis yakushimaensis, a species of Hymenolepidid tapeworm. V. yakushimaensis was described as a new species based on 13 specimens recovered from the small intestine of one individual. It was also one of the first bat species in Asia to test positive for Pseudogymnoascus destructans, the fungus that causes white-nose syndrome. One individual tested positive for the fungus during summer sampling of a cave inNortheast China. The disease does not appear as lethal in China as it is to bats in the United States, though.
Distribution
It can be found in North Korea, South Korea, Japan and Russia. It has been reported In northeast China but this has yet to be verified.
