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Moggill Creek

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mccgadmin

Ticks

February 2, 2020 by mccgadmin

Ticks can be bad in warm humid periods.  Apart from the annoyance of itchy bites, some people are allergic to ticks, so it’s worth knowing more about them, and particularly about removing them!

Note that although the method below has been found to be effective, readers need to satisfy themselves as to the effectiveness and side effects of the method.  MCCG does not claim to have any particular expertise in this field.

The following advice was published in the MCCG Summer Newsletter 2011, and matches that provided here by the Australian Society of Clinical Immunology and Allergy:

There are various ways to manage ticks, once attached, but a few years ago we adopted a method suggested by a doctor at Royal Brisbane Hospital and found it very easy and successful. You simply give the tick a couple of squirts with Aerostart and the tick dies within a few seconds. Very convenient! The earlier you squirt, the better, preferably without touching or poking it first because it will inject less of the foreign protein which causes a reaction. If it’s a small one (an early stage;some people don’t realise they are baby ticks), you don’t need to remove it. Larger ones can be removed with fine forceps once dead (no leg waving after a gentle poke), grasping where the ‘beak’ enters the skin. There’s no urgency to do that.

Aerostart is sold for starting recalcitrant two-stroke motors and can be purchased at SupaCheap Auto and such places.  WARNING: Aerostart is petroleum ether. It is flammable and an anaesthetic. USE IN A VENTILATED PLACE & AWAY FROM FLAME. It works very quickly because the ether dissolves the tick’s waxy cuticle and permeates the tick.

It’s only the female tick that sucks your blood. The males have a smaller rostrum (‘beak’) and you may find them crawling over you looking for a female with which to mate, or to feed on it. The life cycle varies a bit between years but, in general, tiny larvae (pinhead size, with 6 legs) hatch from eggs in late summer/ autumn. After their first feed they moult to a nymph (8 legs) and moult again after a second feed to become an adult. Fully fed females fall off a host in summer as a sac full of hundreds of eggs. If you are unlucky enough to sit where these eggs have hatched, e.g. in long grass, you may collect many dozens of tiny dark tick larvae, all having their first feed.

Aerostart is then magic; spray the affected area and kill the lot.

To avoid getting a tick in the first place, ‘Rid’ seems to be the best repellent.

The Queensland Museum has a downloadable Fact Sheet which can be found on the resources page of their web site (but it advises killing ticks with an insecticide, which is very slow!).


The photo shows a collection of ticks. Most are on their backs. The males are on the right, and their smaller ‘beaks’ can be seen.

Other sources of official advice tend to stick to the use of tweezers or insecticides.  See for instance:

Queensland Health

Department of Entomology Sydney University

Department of Health NSW

Return to Feral Animals

Filed Under: Feral Animals

Fire Ants

February 2, 2020 by mccgadmin

It’s important to identify and report any infestations of fire ants on your property. These ants are a serious threat to our environment and to our way of life.

The Queensland Government is actively involved in measures to prevent the spread of these introduced pests.

See here for further details, including how to identify fire ants and what to do if you find an infestation.

Return to Feral Animals

Filed Under: Feral Animals

Richmond Birdwing Butterfly

February 2, 2020 by mccgadmin

The spectacular Richmond birdwing butterfly (Ornithoptera richmondia) is the largest butterfly in South East Queensland and Northern New South Wales.

The colourful male has a wingspan of 12-13cm, with a black body, brilliant green stripes and spots on both sides of its wings, green patches on its hind wings and a bright red splash on its thorax.

©  Paul Wright

Declining populations

Sadly the numbers of this strikingly beautiful insect have been in decline since the late1880’s. Its numbers and its geographical range have contracted alarmingly.  In Queensland it is now listed as a vulnerable species.

The reasons for its decline are both man-made and natural. The ideal habitat for these butterflies is in lowland subtropical rainforests where the birdwing butterfly vine (Pararistolochia praevenosa and P. Laheyana) is available to support the butterflies during their immature stages as larvae.

Birdwing butterfly vine © RBCN

Habitat loss

The destruction of habitat to make way for forestry, agriculture and urban development has decimated wide areas of habitat for these butterflies, particularly in south-east Queensland.  

Pararistolochia praevenosa has been displaced by many exotic vines but one exotic in particular has had a devastating effect on local populations.

The Dutchman’s pipe vine (Aristolochia elegans) is an exotic species introduced from South America. It is similar in appearance to Pararistolochia praevenosa and attracts the female butterflies who lay their eggs on its leaves. Those leaves are highly toxic to any larvae which emerge. Sadly Dutchman’s pipe is more attractive to female butterflies than Pararistolochia praevenosa. Despite efforts to eradicate it, Dutchman’s pipe continues to thrive in gardens. It has escaped and now proliferates many bushland and waterway areas. It is very prevalent in the western suburbs of Brisbane.

Periodic instances of prolonged drought have also damaged habitat, reducing the availability of soft leaves for food and denying essential moisture from growing pupae. The net result has been the isolation of a number of viable Richmond Birdwing Butterfly populations, leading to in-breeding due to population decline. In many areas, local populations have become entirely extinct.

A united conservation effort

For the past thirty years or so, a group of conservationists led by Dr Don Sands have quietly been tracking South East Queensland Richmond birdwing butterfly populations, re-establishing Pararistolochia praevenosa vines and removing Aristolochia elegans. Their efforts have paid off with a resurgence of the butterfly in the Sunshine Coast and Gold Coast hinterland regions.

Now the focus is on Brisbane. In an outstanding demonstration of collaboration many conservation groups and local residents have united with Brisbane City Council and the Richmond Birdwing Conservation Network (RBCN) in a determined effort to save the Richmond birdwing butterfly from extinction within the Brisbane environs.

In 2017 the “Bringing the Richmond Birdwing Butterfly Back to Brisbane” project was launched.

This is one of several projects which aim to systematically map the spread of Aristolochia elegans, map the current range and future range of the Richmond birdwing butterfly as a result of climate change, as well as co-ordinating  plantings of Pararistolochia praevenosa in “corridors” throughout Brisbane.

The intention is that these “corridors” will allow separate colonies to breed and thrive, encouraging the likelihood of mating between non-related insects to produce stronger, more viable populations. Several corridors have been identified as being critical to the survival of the Richmond birdwing vine and butterfly. These include sites in the Gold and Sunshine Coast hinterlands and in the western suburbs of Brisbane.

The MCCG and residents of the catchment are contributing greatly to help establish these corridors. The aim is to join up with current and future plantings in other council areas both north and south of Brisbane.

Cody Hochen is a Wildlife Conservation Partnerships Officer with Brisbane City Council. He has provided the MCCG with a wonderful description of the project, its goals and successes so far (January 2019).

To read Cody’s article, please click here: Bringing back the Richmond Birdwing Butterfly


What YOU can do to help

There are MANY things you can do to help bring back the Richmond birdwing butterfly.

You can plant Pararistolochia praevenosa vines to attract larvae and remove Aristolochia elegans in your own garden or you can volunteer to join bushcare groups who work in wider areas. Pararistolochia praevenosa requires moisture, so there is often a call out for volunteers to water vines during dry spells.

There are a number of species you can plant which will attract adult Richmond birdwings as well. For more info, please see the following guide produced by the Richmond Birdwing Conservation Network: Australian Nectar Plants for Adult RBB

Other activities you can join include:

  • Restoring Richmond birdwing habitats
  • Supporting scientific research
  • Hands-on school projects
  • Creating flagship corridors by planting vines
  • Educational publications
  • Removing Dutchman’s pipe vines.

The Richmond Birdwing Conservation Network has a wealth of information to help you find you a part to play. Call them on 3844 0129 or visit their website or Facebook page (highly recommended!)

Or, for starters, refer to the following fact sheets:

  • Richmond Birdwing Butterfly Factsheet
  • Birdwing Butterfly Vine Factsheet
  • Cultivation of Birdwing Vine Factsheet

Let’s bring back the Richmond birdwing butterfly!

 

Return to Butterflies

Filed Under: Butterflies

Butterfly attracting plants

February 2, 2020 by mccgadmin

Specific local butterflies need specific native plants – not for themselves as beautiful flower-sipping adults, but for their caterpillar leaf-munching stage.

You can attract butterflies to your garden simply by selecting the right plants!

Some butterflies, like the Chequered Swallowtail, have only one local host plant, while others have more options.

The Orchard Swallowtail, for example, uses a wide range of native and exotic citrus trees and does particularly well on all the Flindersia species in our area. The Blue Triangle also has choices in local laurels such as Cryptocarya species and Neolitsea dealbata.

Some plants host more than one butterfly species. A good example is Native Mulberry, Pipturus argenteus, a small tree which supports a lot of wildlife including Speckled Line Blue and Jezebel Nymph butterflies.

Surprisingly, the small herb, Love Flower, Pseuderanthemum variabile, hosts quite large butterflies – the Leafwing and Varied Eggfly.

So, planting local native plants is a great way to entice colourful butterflies into your garden or bit of bush!

Below is a short list of some local native plants with the colourful butterflies they attract:

Scientific Tree Name Common Name Butterfly
Alphitonia Pink ash, Soap Tree for Small Green-banded Blues
Breynia oblongifolia Breynia for Large Grass Yellows
Citrus australis Native lime for Dainty Swallowtails
Cryptocarya triplinervis Three-veined laurel for Blue Triangles
Cullen tenax Emu foot for Chequered Swallowtails
Flindersia australis  Crows Ash for Orchard Swallowtails
Lomandra longifolia Lomandra for Splendid Ochre Skippers

Pipturus argenteus

Native mulberry for Jezebel Nymphs & Speckled Line Blues

Senna acclinis

Brush Senna for Yellow Migrants

For more information about butterflies see:

  • Field Guide to Butterflies in the Moggill Creek Catchment (includes images)
  • DPA Sands Butterfly List

For information about free plants for MCCG members, please visit our Nursery page.

Return to Butterflies

Filed Under: Butterflies

About Lepidoptera

February 2, 2020 by mccgadmin

Butterflies and moths belong to the scientific order of Lepidoptera, which means “scaly wings”.

The Latin name originates from thin scales which cover the insects’ bodies and wings, giving rise to their spectacular colours. It is thought that the scales have evolved as protection against spider’s webs. Both butterflies and moths have six legs and the three main body parts of head, thorax and abdomen.

Butterflies and moths undergo metamorphosis during their lifetimes. What we know as caterpillars are generally butterfly larvae. This is followed by the pupal stage of development,often characterised by a cocoon for moths and chrysalids for butterflies.

Adults generally have two pairs of wings and tubular-shaped mouthparts which have evolved to enable the insects to drink flower nectar, sap and various liquids to maintain their energy stores.

Although butterflies and moths are closely related, there are some differences between the two:

  • Moths are nocturnal whilst butterflies are active during the day
  • When butterflies are resting, they hold their wings vertically above their body, whilst moths will rest with their wings laying flat  
  • Butterflies have a thickened knob or club at the end of their antennae; moths do not have any structures at the end of their antennae, which are thinner and more thread-like than the butterfly’s antennae
  • The wings of most moths are linked by a frenulum – a bristle-like structure, which is absent in butterflies 

It is said that moths are more dull than butterflies. If you take a look at our online Butterfly Field Guide, you may wish to differ!

A Heliotrope moth © Ed Frazer

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Filed Under: Butterflies

Up the Creek – Ed Frazer

February 2, 2020 by mccgadmin

With the dry so bad I have been concentrating my wildlife photography to the two large holes of Gold Creek that border our property.

Of course, the Platypus are the main interest, and now that the pups are growing I am finding the mothers are out feeding frantically through the day. One was out at 2pm in the second week in November!

Now is definitely the time to go watching Platypus!

Find the best spots by looking at the locations where they’ve been sighted in our annual Platypus Survey. Take a chair and just sit quietly and wait! Early in the morning or the last hour before sunset are the times you are most likely to see them.

Watch out for lots of bubbles rising to the surface and often a stream of mud being brought up from the bottom of the creek. I find they surface about every 45 seconds while they are feeding.

If you are lucky one will stay on top of the water to chew on the creatures it has stored in its cheeks.

But there is plenty of other life up the creek!

We have several Sandpaper Figs hanging over the water and one very old one has a huge crop ripening at present.

Every few minutes a ripe fig will fall into the water and it can be a torrent of figs falling when a flock of Fig Birds and Orioles start feeding in the tree.

Under the water are a number of Eel-tailed Catfish and I think one has a nest there too.  I am not sure if the fish eat the ripe figs or the creatures attracted by the figs.

Another that hangs around the same area is a good-sized eel. They are ultra-designed and can move with the slightest effort.

The creek has a large number of Water Dragons.

Each has a territory and there are frequent standoffs between territory owners. The area “owned” is relative to the dragon’s size and I think the males get a bit more as they appear to be more aggressive.

The Water Dragons were not to be seen as they were hibernating until late August and then they were mostly sitting on the banks or in branches of trees sunning themselves. Now it has heated up they spend much of their time in the water with just their heads poking out.

Just occasionally I see a Water Snake, a Keelback, swimming by.

They are beautiful to watch and the ones around here have a bluish tinge. They are quite an aggressive snake when encountered around the house, but they are not poisonous. They eat skinks and frogs and I have heard young cane toads but I have not seen that happening.

Something must though, as millions hatch, but clearly they don’t all survive.

Dragonfly larvae are one of the most important food for Platypus and they must be in short supply this year as the number of adults is way down this year.

The adults of most species catch midges and other small insects on the wing and they must be short of food and consequently few are laying eggs in the creek.

One species that is still around and spends all its life cycle at the creek is the Australian Emerald. It never seems to stop flying and is very hard to photograph and I took my best shot of it waiting for the Platypus to appear.

Sometimes just watching the combination of wind, reflections and sunlight on the water with it changing like a Kaleidoscope  is worth a photo or two.

I still get to do a bit of bird photography. My biggest challenge is to get a good photo of the resident Grey Goshawk, which almost every time I’m at the creek flies very fast under the canopy of the trees lining the creek. With the low light because of the closed canopy and the speed the bird goes it is still a challenge.

Equally fast just one metre above the water is the Azure Kingfisher. However, it likes to perch on horizontal branches over the creek, so I have added to the ones naturally there – strategically placed with a suitable background.

Around the creek are two very interesting ground birds. One is spectacularly coloured, the Noisy Pitta, and the other is highly cryptic, the Russet-tailed Thrush. The Noisy Pitta just visits in the cold weather and returns to nest along the Scenic Rim at higher altitude.

The Russet-tailed Thrush stays all year and nests at the base of a tree in a tangle of vines.

Both are in serious trouble from cats, which are rampant in the Catchment.

With the Grey Goshawk patrolling and cats along the banks, the creek is a dangerous place for ducklings. There are water rats with their distinctive white tipped tails the size of cats and a vicious predator too.

Yet one very disciplined duck family visits regularly and I have never seen a clutch of chicks move so fast and stay so close to mother. They posed beautifully on a log behind mother before they took off.

Another predator is the Nankeen Night Heron.

It is a highly under-rated ambush hunter that I think gets up to a lot of mischief at night. It roosts in the trees along the creek during the day and while the books say it eats frogs and fish.

I think it does well on ducklings and other young birds. We have Australasian Grebes nesting on most of our dams and I think the Nankeens take all their chicks up to about March when the Nankeens move off to the north.

There is a lot more going on than is obvious and its well worth the effort to put on some insect repellent and take a chair and sit and watch early one morning or just before dusk. It’s some of our Moggill Catchment fauna and flora at its best.

Return to Bush Bites

Filed Under: Bush Bites

The birds are burning

February 2, 2020 by mccgadmin

There has been plenty of discussion about recovery options on offer for those affected by our ongoing bushfire crisis.

But what does bushfire recovery mean for birds?

For humans, animals and plants alike, the slow road to recovery is very much tied up in initially finding a safe and well resourced haven to call home.

Sadly, this will be a slow journey. How long will it take for bird life to recover from the devastation?

For an informed answer from our resident birder Jim Butler, please head to our Feather Fascination page and check out the January 2020 issue.

You will also find some great articles on this subject on the Birdlife Australia website.

Filed Under: MCCG

McKay Brook Bushcare new start time on Saturday

February 2, 2020 by mccgadmin

Please be aware the Section 11 working bee scheduled for Saturday 1st February has been put back a week to Saturday 8 February.

The group will meet at their Mabb St site and they will be working across the creek from Belford Street.

Start time is 2.30pm.

Best to park at the end of Belford Street (UBD Map 177, K7). Turn to your right and walk upstream, cross the bridge and head downstream and you will soon find the crew.

Bring protective clothing (long-sleeved shirts, jeans, sensible shoes/boots), gloves, drinking water, hat and sunscreen. Refreshments are provided!

Please come if you can – new members are always welcome and they’d love some help!

For more info please contact Bryan Hacker on 3374 1468.

Filed Under: News

Huntington/Tuckett Bushcare postponed

January 27, 2020 by mccgadmin

The Huntington/Tuckett bushcare has changed the date of their next working bee. It will be put back by a week to Sunday 1st March, instead of the previously advised 23 February. Start time is 8:30am.

The group, led by Jim Pope, has hit the new year at full speed!

Last year their Habitat Brisbane bushcare section was extended from Tuckett Street Park down to the footbridge at the bottom of Branton Street. This encompasses the riparian zone on the western side of Moggill Creek, opposite Kensington Circuit at Brookfield.

The group’s first working bee was held at Kensington Circuit on Australia Day, and the objective was to clear the area to make way for new plantings.

With eight new volunteers turning up on the day, the group made great progress and the difference was notable! What a great start to 2020!

Jim extends a warm THANK YOU to all his wonderful volunteers, old and new!

If you’d like to get involved, please contact Jim on 3374 4181.

Great progress on Australia Day – next step: planting!

Filed Under: News

Facing Fire in a Changing Climate

January 18, 2020 by mccgadmin

Although the rain has fallen it will take resilience and time to recover from our catastrophic Summer break. There are many lessons to be learned.

The SEQ Fire & Biodiversity Consortium’s annual Fire Science Forum may be of interest to many. Topics include prescribed burning, smoke, fire ecology, infrastructure risk, fire weather and an overview of Queensland’s 2019/20 Bushfire Emergency

The event will be held at the Queensland State Library on Tuesday 17, March.

For more info and to purchase tickets, please head to Eventbrite.

Filed Under: News

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