Indonesian Mountain Weasel (scientific name: Mustela lutreolina) Foreign name Indonesian Mountain Weasel, no subspecies.
Little is known about the behavior of the Indonesian Mountain Weasel. Other weasels tend to be solitary and nocturnal, interacting only for breeding or territorial disputes. Since the species has a solitary territorial mating system, the main concern of females is to defend the homeland that provides enough resources for their offspring. Males want to have as many females as possible living in their territories. Like other weasels, the Indonesian mountain weasel communicates mainly by scent, and secondarily by vocalization, using "clicks" or other auditory noises.
The Indonesian mountain weasel is completely carnivorous. It particularly likes to eat rodents. Their agility and speed allow them to kill prey much larger than themselves. They are also very good at catching rodents from burrows. The Indonesian mountain weasel will stay in the prey's nest during each hunt until all the inhabitants of the nest are completely eliminated.
The Indonesian mountain weasel reaches sexual maturity at about 1 year old. The breeding season is between March and May, and the gestation period is about 30 days. Like other weasels, the pups of the Indonesian mountain weasel are also small white weasels. Young weevils are born with their eyes closed, have little fur, and are completely dependent on their mother for care. It takes about a month for the pups' eyes to fully open, and another month for them to be fully weaned. For weevils, care of the young is entirely the responsibility of the mother. Weevils are fully weaned and leave their mother after 2 months. However, the pups tend to stay together until the fall. Lifespan 7-10 years.
There are no obvious potential major threats to the Indonesian mountain weevils. It lives above sea level in Sumatra, where harassment and trapping of ground mammals is common and deforestation is high. In the past, much of the natural habitat on Java has been lost in this elevation zone, and what remains are scattered patches, but the total area is relatively stable. There is no doubt that some Indonesian mountain weevils have fallen victim to non-selective hunting methods on both islands, but there is no reason to think that the numbers are high enough to affect its survival prospects.
Listed in the 2016 IUCN Red List of Threatened Species ver 3.1 - Least Concern (LC).
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