Dawn Road Reserve Bushcare’s next 2-hour working bee is on
Sunday, September 11, 2016, from 8am, at the end of McConachie Court.
Please come along and join our happy crew as we do
lots of important work in your neighbourhood.
*** Remember to at least wear long trousers, a long-sleeved shirt,
a broad-brimmed hat and sturdy, closed shoes. ***
Sunscreen, insect repellant, drinking and hand-washing water
as well as light refreshments will be provided.
February 2016:
Catch an audio update on this important revegetation project in this interview with the Dawn Road Reserve Bushcare group’s Janet Mangan.
August
There was so much achieved this month and the difference looking at our latest regeneration site is rather satisfying, after the Moreton Bay Regional Council helped move some mulch around the site so it could be spread, with a defined edge, to separate the revegetation site from its adjacent grassy verge.
The mulch – which came from pest species trees that were taken out early this year – will help suppress weed growth and help the shrubs and trees planted over the past few months to grow with less competition and better moisture retention. Over time, the mulch will break down to provide further nutrients to the soil.
The hard work in fact began the afternoon before that latest working bee, when Dawn Road Reserve Bushcare patron Janet Mangan dug almost 100 holes along the edge of the patch for volunteers to plant out with strappy perennials the following morning.
Just inside that sharply defined edge, the Dawn Road Reserve Bushcare volunteers then planted a neat line of creek matrush (Lomandra hystrix), which will easily withstand any overland flooding from the nearby creek.
In the middle of the site, a few more trees and shrubs were added, which will fill out the patch nicely over time and create a decent canopy.
It was interesting to note that the local wildlife – possibly red-necked wallabies (Macropus rufogriseus) – have already been feasting on some of the native plants in the midst of the freshly mulched area.
Where the Dawn Road Reserve’s latest revegation patch narrows, at the northern end of the site alongside Fred Campbell Drive, a second line of taller shrubs were planted.
Once the edging matrush plants were in place, it was time to position some taller plants behind them. Pic: Trina McLellan
And to mark the occasion, a special ‘souvenir’ tree was planted on the site by the Dawn Road Reserve Bushcare’s Janet Mangan. The species she chose is known as the cudgerie tree – or silver ash – (Flindersia schottiana) and it will grow to be a large tree with a dense canopy which will well and truly help fill out the view across the revegetation patch.
Where previously there had been a dense thicket of invasive broad leafed pepper and non-native radiata pines (Pinus radiata), the newly planted cudgerie and other species that have since been chosen for this site will help recreate a vista of green shrubs and trees that are more suitable for this location, which is on the western edge of one of Brisbane’s most biodiverse remaining bushland spaces and beside a usually quiet stream. However, summer downpours and flooding rains are likely to see this site inundated, so plant choice has been made with those things in mind.
July
What a lovely day to be working outside, with the cool, crisp air broken only by the plentiful sounds of a range of birdlife. This month we welcomed three new volunteers, who were inducted on the Dawn Road Reserve Bushcare group’s newest revegetation zone, which sits alongside a stream and partially underneath overhead powerlines. These high-tension power lines stretch all the way from a major electrical sub-station at Brendale through a number of suburbs to the south, including Albany Creek.
While the newcomers were being introduced to the site and the weeds they’d be working on, more regular volunteers were already busy thinning out identified weed species around the dozens of plants these volunteers had planted over the past six months.
Even though this zone had been thoroughly inundated, twice, in the past couple of months, preventative steps have meant almost no loss of new plantings. Simply having an upstream bamboo stake helps keep debris off the new plants and the positioning of a creek matrush (Lomandra hystrix) slightly upstream has slowed the flow of water and diverted much of the pressure that would otherwise have been exerted on the saplings and young shrubs.
Among the new plants introduced to this site was a gorgeous cordyline (one of at least 15 species of Cordyline, which are sometimes referred to as cabbage trees). And not all weed species were earmarked for immediate removal. For example, a smattering of the fast-growing wild tobacco plants (Solanum mauritianum) has been left to provide early canopy protection for slower-growing beneficial species. Once these new plants are well-established, the wild tobacco trees will be removed from the site.
As in recent months, the Dawn Road Reserve Bushcare volunteers were treated to visits by a few different bird species, including a juvenile and adult Australian magpie (Cracticus tibicen), rainbow lorikeets (Trichoglossus moluccanus), pied butcherbirds (Cracticus nigrogularis) and the rather naughty noisy miners (Manorina melanocephala), which like to chase away other bird species, even much larger avian cousins.
Locals may be wondering why the Dawn Road Reserve Bushcare group has been working so solidly on the two revegetation zone projects under the powerlines over the past 18 months, aided by two separate Moreton Bay Regional Council grants. Well, this month our patron, Janet Mangan, explained that because these areas had been heavily infested with invasive, aggressive weed trees and shrubs – primarily broad-leaf pepper, easter cassia, brazilian nightshade and the fast-spreading hibiscus rose (Hibiscus mutabilis) – they presented a long-term threat to precious nearby bushland, which is one of the region’s few remaining biodiverse tracts of dry schlerophyll forest. Once established these types of invasive weeds tend to overtake native and beneficial species, so the eradication of them on the north-western margin of the reserve is a sensible preventative measure.June
So now the cool weather has finally arrived, it is time to review recent growth on our original revegetation patch. The southern boundary zone has gone ahead leaps and bounds, so much so that it was past time to remove the tree guards originally positioned to keep hungry wildlife from nibbling on young leaves and branches.
We were blessed in June with two loftier visitors, with Wild BNE‘s Christian Perrin and Aspley resident Aaron Wiggan joining our small group to help with working bee tasks. With the new growth exceeding 2m in some cases, their extra height was put to good use.
But the end result was just fine, with all shrubs and young trees liberated from their protective guards and only one shrub lost during the recent downpour which scoured a path through the planting.
But tidying up this hillside planting was not the extent of the work done this month. Nearby, alongside the stream in the original revegetation patch, it was great to see that native grasses and sedges had moved in to keep the young beneficial plants company.
Finally, the volunteers moved on to the newest revegetation patch and began removing a number of weed species, including some young wild tobacco trees (Solanum mauritianum), while noting the healthy growth of the dozens of beneficial plants that had been introduced earlier this year. And there were a few nice surprises when the volunteers were working on this zone, including the spectacularly coloured hibiscus harlequin bug (Tectocoris diophthalmus), a pair of Australian wood ducks (Chenonetta jubata) and a laughing kookaburra (Dacelo) intently stalking its prey.
But the really unexpected discovery of the morning was the ‘tok, tok’ call of the striped marsh frog (Limnodynastes peronii), specimens of which had inhabited a small rainwater catchment that separates the two revegetation sites.
LISTEN: To a 2-minute interview with Wild BNE‘s Christian Perrin about this frog and listen carefully to hear its distinctive call. And to read all about
UPDATE: To read about the nature walk, pop over to Christian’s blog post.
May
At last, after an elongated, humid summer, the worst of the warm weather is behind us, however there has been very little rainfall over the Dawn Road Reserve Bushcare group’s second revegetation site, yet that does not seem to have deterred new growth of both beneficial plants and weed species.
So the volunteers got down to work after admiring the steaming pile of woodchips that will need to be spread soon to define a mowing edge for this space that sits alongside an easement that fronts several homes.
With the shortage of water from the heavens over recent weeks, volunteers found there was plenty of groundwork and watering to be done to help new plants get established.
And, in some places, the ground was too dry and hard to simply pull out invasive weeds, so a pick axe had to be brought into service.
The great news is the diversity of beneficial species is starting to become apparent, with locally endemic soap tree (Alphitonia excelsa), cheese tree (Glochidion ferdinandi), the magnificent rainforest species, the firewheel tree (Stenocarpus sinuartus), and the poison peach (Trema tormentosa) all establishing healthy specimens.
As ever, though, the battle against several invasive weed species goes on across the newest revegetation zone, with interlopers determined to set up house on the recently cleared ground.
The most persistent of them all is the broad-leaf pepper tree (Schinus terebinthifolius), which was initially cleared from the site and, while it’s branches and trunks were chipped for recycling, its stumps and its below-ground runners are still shooting up new growth that needs to be poisoned before that new growth throws seed-bearing fruits that can be spread by birds and small animals.
Then there were spots of climbing asparagus fern (Asparagus africanus), Easter cassia (Senna pendula var. glabrata), balloon cottonbush (Gomphocarpus physocarpus) and Brazilian nightshade (Solanum seaforthianum).
But the biggest buzz this month was the visiting birdlife, with a pair of galahs (known either as Eolophus roseicapillus or Cacatua roseicapillus) who were perched on one of the remaining pine trees, happily watching over the volunteers as they worked. You can read more about them here.
Then an eagle-eyed visiting volunteer, Christian Perrin – of Wild BNE fame – noticed a tawny frogmouth (Podargus strigoides) asleep in the crook of a nearby tree.
And, finally, just before the working bee concluded, we were graced with the solo cacophony generated by a lone sulphur-crested cockatoo (Cacatua galerita) that passed overhead while calling to all of its mates who might have been lurking in the district.
April
After reviewing the magnificent growth of the southern edge of the original regeneration patch that the Dawn Road Reserve Bushcare volunteers have worked on for more than a year, this month’s working bee got an early start on our latest regeneration project area, removing some of the invasive weeds that had taken advantage of the recently cleared zone.
Thankfully, some were quite easily pulled by hand and left to rot, including quite a bit of newly sprouted balloon cotton bush (Gomphocarpus physocarpus), held aloft here by our patron, Janet Mangan. This milkweed species is quite prevalent in this neck of the reserve. This may explain why you often can see plenty of Monarch (or wanderer) butterflies (Danaus plexippus), which love to feed on this pest plant.
One eagle-eyed volunteer even found a distinctively marked caterpillar which will soon turn into another Monarch butterfly.
And, it being Easter time, the bright yellow blooms of the Easter cassia (Senna pendula var. glabrata) were evident everywhere, including in a dense thicket to the east of our latest regeneration zone.
But not all the new growth in the recently cleared zone itself involved unwanted species. This hardy native sedge was establishing itself among other less favoured weeds.
After 8am, the busy group of volunteers trekked into the reserve itself to a lovely creekside spot known locally as Dingley Dell, where concerns had been raised about a growing number of weed species invading what is an ecologically diverse riparian zone that is slowly evolving into a rainforest zone.
In Dingley Dell, the main concerns were the widespread appearance of Mickey Mouse plant (Ochna serrulata), an ornamental exotic that has escaped from local gardens and is proving a real menace in woodland areas, and the coral berry (Ardisia crenata). Both have red berries that are extremely attractive to birds and other wildlife, so their seeds are easily spread. And removing Ochna is no easy task, but if left to its own devices – or removed incorrectly or by fire – it will thrive and regenerate, often with up to five times the original shoots.
While the group was working hard at Dingley Dell, it was time to duck down the track to see if our small koala was still residing in a nearby tree. And, lo and behold, she’s still there. However, as you can see from this picture, she seems to have a discoloured rear end and that could indicate that she is unwell. So a local koala group has been notified and will soon check on her welfare.
If you do happen to be koala-spotting in the reserve, here are the kinds of trees to look around for (thanks to the Queensland Parks and Wildlife Service).
March
While steamy, overcast conditions deterred some Dawn Road Reserve Bushcare volunteers, others were more than willing to pitch in on the new revegetation site, which now has dozens of new plants to replace the dense, overgrown and weedy species that were removed earlier this year.
One of the side benefits of the clearing of pest species is that the broad leaf peppers and radiata pine trees provided plenty of woodchips that will be spread around the revegation areas to help define mowing edges and protect young plants from being overrun by weeds.
Two of the replanted species in the new revegetation site this month were the water-tolerant Bblack tea tree (Melaleuca bracteata), a medium-sized screening plant with fine, scented foliage and profuse, white, brush-like flowers that appear in all seasons except autumn, and the tall native wetland tree known as the weeping lilly pilly (Waterhousea floribunda). These should fare well because the stream that flows through the area is prone to overflowing its banks during a downpour.
While the footprint of such occasional ‘flooding’ is restricted to a few metres either side of the stream – occurring well within the site itself – this means young and small plants need to receive extra protection until they are well established.
Replanting at this second revegetation site follows much the same pattern as before, with volunteers digging appropriate sized holes, placing the new plants and some fertiliser in those holes before back-filling and tamping down the soil to give the newcomer a firm start in its new home.
One interesting development, however, has been the clever addition of a couple of downstream grassy plants – Lomandra hystrix (also known as creek mat rush) in this case – which have been positioned to slow or at least deflect any floodwaters that might otherwise carry away the young saplings.
Over the past two working bees, Dawn Road Reserve Bushcare volunteers have planted more than 50 beneficial trees and shrubs on the group’s second revegetation site, with care taken to ensure positioning and aftercare are sensitive to the adjacent powerlines and nearby residential properties.
Replacing invasive pest species with appropriate native species will not only mean a more suitable plant profile for this patch in the long term, but it will also attract and sustain more beneficial insects and native animals.
Fingers crossed our two adjacent revegetation sites continue to get sufficient gentle rainfall over the coming months to negate the need to hand water!
As Dawn Road Reserve Bushcare volunteers again discovered this month, working bees can turn up some interesting finds. Eagle-eyed patron Janet Mangan pointed out tiny native bees congregating in and around a notch in a small tree.
Nearby, there is a filtration pond that keeps larger debris from entering the sensitive waterway that runs through our revegetation sites. Now well-established, the pond attracts a number of different frog species and dragonflies.
And already a tropical rainforest creeper, Stephania japonica – or snake vine – has arisen among the leaf litter left behind on the Dawn Road Reserve’s newest revegation site.
However, not all of the ‘finds’ were beneficial to the new revegetation site or to the district.
According to long-time locals, this year seems to have been a boomer for cane toads (Bufo marinus).
And on the day of the March working bee, there were hundreds of tiny toads scattering about the site as we worked.
On its website, the Australian Government’s Department of the Environment says: “The cane toad defends itself through poison and is poisonous, to varying degrees, during all its life stages. Adult cane toads produce toxin from glands over their upper surface, but especially from bulging glands on their shoulders — these exude venom when the toad is provoked. While some birds and native predators have learned to avoid the poison glands of adult toads, other predators are more vulnerable and die rapidly after ingesting toads. Toads contain poisons that act on the heart and on the central nervous system. The poison is absorbed through body tissues such as those of the eyes, mouth and nose.”
Very few native animals or birds have learned to adapt to the dangers presented by cane toads, so the toll on wildlife can be enormous where these invaders flourish.
Other invasive species catching the attention of the Dawn Road Reserve Bushcare volunteers this month were the pervasive balloon cotton bush (Gomphocarpus physocarpus) and another opportunistic shrub, the dark blue snakeweed (Stachytarpheta cayennensis).
Both of these weeds, left to their own devices, are quick-spreading, so volunteers have begun the process of removing them from the site and will continue to monitor their presence in the coming months.
February
Some exciting news before reporting back about our first working bee for 2016. After extensive community consultation and a fresh application for extended funding, led by our Dawn Road Bushcare patron Janet Mangan, a bid to extend our revegetation zone to the north was approved late in 2015.
In early February, some necessary clearance work – involving the removal of invasive pest species broad leaf pepper (Schinus terebinthifolius) and Easter cassia (Senna pendula var. glabrata) as well as the thinning out of misplaced radiata pines (Pinus radiata), which are an escaped plantation species that become unwelcome weeds in natural areas – was done by contractors, allowing the Dawn Road Bushcare Group to begin work on the new revegetation area at our very first 2016 working bee.
While the understory was cleared out, you might wonder why only some of the taller cone-bearing pines were removed and others left in place, given the propensity for relatively easy propagation.
After consulting with local residents, it was decided that – if all of the pines were removed at once – it would also remove the visual barrier that had grown up between the houses and the overhead high-voltage power lines that overpass the site.
Over the next few years, until the newer native species trees and shrubs grow up, fill out and provide their own dense canopy visual barrier, the remaining pines will help do that work and the Bushcare team will remove any new pines that pop up.
The presence of these power lines made even selective removal of the largest pines a somewhat tricky prospect, so the contractors are to be congratulated for downing them responsibly and chipping them onsite without incident, leaving plenty of mulch for working bees to work with over the coming months.
So the very first Dawn Road Bushcare Group working bee got under way in mid-February, with many hands making headway with new plantings.
We welcomed back some familiar faces as well as a couple of new volunteers as the task of replanting in the cleared zone got under way.
There will be lots to do over the coming months and we’re hoping that gentle rain might soften some of the heavier soils, but a great start has already been made on this new revegetation patch.
Welcome back to this special community project for 2016. Over the summer break in January, we had some lovely rain to go with the warm weather, which helped new growth on many of our 2015 plantings.
Perhaps the easiest to see in this regard is the southern edge planting, which was populated with 20+ shrub species and mulched carefully to create a clear mowing boundary for council contractors.
Just look at how those shrubs are thriving. Soon we’ll be able to remove their protective guards because they will be fully established.
Sources:
Weeds of Australia (a State Government resource)
Weeds in Australia (a Federal Government resource)