Project Kial
A
Bridled Nailtail Wallaby Recovery Project
The
start of Project Kial
Since the end of 2003, QPWS officers
and wildlife carer volunteers have captured 130 Bridled Nailtail wallabies
that had been kept in a 60 hectare enclosure at a mine site in central
Queensland. The mine owners sponsored a university Bridled Nailtail
wallaby research programme on their land as an environmental project.
When the university concluded the Bridled Nailtail wallaby research
project, wildlife care volunteers from Australian Animals Care and
Education Inc (AACE) and QPWS officers determined that the living
conditions had become highly detrimental to the health of the animals.
The wallabies were relocated to a private property (Kial) where they
have successfully undergone intensive treatment for various conditions
including those caused by an over abundance of parasites (ticks, mites
and worms) and severe malnutrition. The animals’ poor health
was attributed to the decline in the nutritional quality of the natural
food plants within the enclosure and the seasonal increase in the
tick and mite parasite populations.

About
the Bridled Nailtail Wallaby
(aka flashjack)
The Bridled Nailtail Wallaby (Onychogalea fraenata) is one of the
three nailtail species, only two of which exist today. The Crescent
Nailtail Wallaby was declared extinct in 1956 as a result of fox predation
and land clearing.
The Northern Nailtail inhabits northern Queensland and the Northern
Territory where its numbers remain steady. Some scientists believe
that this species has managed to survive so well due to the fact that
the centre of their home range lies north of the country populated
by rabbits.
The
nail on the tail
All three species are named after the bony nail like projection
at the end of their tails. Scientists debate its function. Some believe
that it is dragged along the ground as a stabilising aid when the
animal travels at high speeds while others think that it is used as
a dental hygiene tool used in much the same way as we use toothpicks
and a third theory is that it is used to draw squiggly lines in the
dirt as part of a courting ritual.
Bridled
Nailtail wallaby description
A beautiful grey, white and yellowish wallaby measuring slightly
over a metre in length including the tail, the Bridled Nailtail wallaby
was believed to be extinct until 1973 when a small colony was discovered
on a Central Queensland property. The Bridled Nailtail was named for
the distinctive darkly-bordered white stripes that run from its ears
down across the shoulders to under the forearms.
Social
structure
The Bridled Nailtail wallaby is believed to be solitary animal
preferring to spend its day alone, and only forming groups when seeking
a mate.
Behaviour
The Bridled Nailtail wallaby feeds at night and shelters
on the edges of brigalow scrub during the day. It becomes active a
few hours before nightfall when it comes out to browse and groom.
It eats herbs and malvaceous plants in open eucalypt woodland and
grass is a minimal part of its diet unless forbs are in short supply.
This wallaby has very acute hearing that alerts it to something approaching
from quite a long distance. When frightened its first reaction is
to freeze. They may seek shelter in a hollowed out log, or under a
bush or even lay flat on the ground in the hopes that grass will conceal
it effectively.
Breeding
Bridled Nailtail wallabies are good breeders. Females produce
2.5 joeys a year with a gestation period averaging 26 days and the
pouch life lasting 120 days.
Habitat
Before the European settlers arrived in Australia, the Bridled
Nailtail wallaby territory consisted of acacia forests (Brigalow)
and grassy woodland that stretched from Charters Towers, Queensland
down through New South Wales and into northern Victoria. Today they
inhabit four different types of vegetation on the Taunton Scientific
Research property in central Queensland:
- open grassy eucalypt woodland dominated by popular box (Eucalyptus
populnea)
- dense acacia forest dominated by brigalow (Acacia harpophylla)
- transitional vegetation intermediate between the woodland and forest
areas of very dense brigalow regrowth
AACE Inc
PO Box 47, Marlborough, QLD 4705
Tel: 07-4935-6076. Email: info@aace.org.au