Tuesday, 6 March 2012

Eastern Tube-nosed Bat

© Mnolf
Scientific Name: Nyctimene robinsoni

Conservation Status: Least Concern 
     
Range: Found from the Cape York Peninsula and Torres Strait, along the east coast of QLD and down into NSW.

They can be found in New Guinea under different names.
     
Description: This fruit bat is discernable by its elongated protruding cylinder like nostrils. They have yellow spots speckled across their wings and ears. Fur is grey to reddish brown with noticeable slender black bands along the spine.

Upper incisors are present but are absent on the lower jaw. The lower canines are quite cute in appearance. The tail is quite long (max 24mm) and while flying they make a noticeable whistling call.

In QLD during the night they can be heard in the forest, and in NSW they only call out in the warmer months, usually between October to April.
     
Life Span:

Adult Weight: 42 - 60gms

Forearm Length: 38 - 43mm

Body Length: 82 - 93mm
     
Roosting Preference: During the day, these bats can be found roosting with their wings wrapped around foliage. Even when quite exposed they can be hard to detect.

Normally, they roost alone, but groups of up to five have been discovered roosting together.

Individuals commonly roost in the same place each day for years, while others with roost in the tree they were feeding in prier to dawn.
     
Diet: They feed on plump fruit from both the under storey of rainforests and canopy tree and particularly like Ficus, Eugenia, Syzigium and Randia sessilis. Fruit is consumed on the spot or carried away. Their large wings enable them to carry fruit up to 30gms in size. They can hover and turn in mid-air while manoeuvring in thick vegetation.

In NSW their nightly foraging is usually within 200m of their roost, while in QLD they travel further, usually up to 500m, and up to 1km from the roost.

They often forage up in the canopy over 20m above the ground in rainforest trees like, Bangalow palm, Mistletoe, and Eucalyptus blossom. While feeding they hold the fruit against their chest and use their thumb claws to keep the fruit in place.

Reproduction: During the months of October & December, they give birth to a single pup. Females carry their young until fairly heavy. Lactating mother have been caught in November & December.

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