Upper Kedumba Bushcare group hosted 35 Volunteers from Garguree swampcare and Friends Of Katoomba falls groups and the broader BC community in our annual Kedumba Catchment Gully get-together.
David King welcoming the group onto country
It was a great success, with a wonderful community feel and a great boost to The Upper Kedumba Bushcare site, with so many enthusiastic and committed helping hands we also had 5 new volunteers join in.
After a full work morning we indulged in a wonderful shared feast and heard from Eric Mahony about works in the catchment and how our workdays positively impact on it and Jane about our Bushcare native bee metropolis and who we would likely see using the bee hotels.
We were working on 4 different site components, giving a variety of work options to the volunteers so they could join in with tasks to challenge them and also tasks where they would feel familiar and relaxed.
Our work day consisted of
1 – Continuing to create a wetland soak in the low lying section of Upper Kedumba, to change the environmental conditions currently present, trying to create a wetter area hoping to diminish annual grasses and create more habitat for aquatic critters, whilst slowing the flow of the water in big rain events capturing it on site , and stripping nutrients from it.
In Feb/March we hope to plant this area out with Juncus and other sedges
Installation of water detention devices
2 – Continuing on with a creation of a mulch path through the site – The long-term vision is to create a site where local community will feel inclined to walk through it and stop and find out about local native bees, fauna and habitat creation and why these things are needed and how important they are in our local environment.
3- Removal of small and large privets in bands across the slope – this work will be supported by a day of contracting works in the next 3 months and continued planting of endemic species.
4- Removal of Montbretia from a drainage line.
Thank you to all who came along and helped with our ongoing Bushcare works
By Jane Anderson
From the 1st of July 2017 the NSW Government has replaced the Noxious Weeds Act 1993 with the Biosecurity Act 2015. Under the Biosecurity Act 2015, the Blue Mountains City Council, as the Local Control Authority, has a legal obligation to manage the biosecurity risk posed or likely to be posed by reducing the impacts of Priority Weeds.
WHAT IS BIOSECURITY?
Biosecurity refers to the protection of native plant communities; reducing the risk to human health: and the risk to agricultural production, from invasive weeds.
WHAT DOES THE NEW BIOSECURITY ACT MEAN FOR ME?
Under the Biosecurity Act, landowners have a responsibility to control the risk that Priority Weeds on their property pose to neighbouring bushland and properties.
Residents will see a change in the terminology used, for example, the term Noxious Weed will be replaced with Priority Weeds or Biosecurity Matter, and weed notices/orders will be issued as Biosecurity Directions under the Biosecurity Act. There are also some changes target invasive plants identified as Priority Weeds compared to previous Noxious Weeds lists.
Therefore the Noxious Weeds Classification of individual weeds is no longer correct.
Will the Biosecurity Act change the way Council manages weeds on private property?
No. Council’s Urban Weeds Program and the process for inspecting private properties for invasive weeds will continue unchanged. Council will also maintain its current approach to education and enforcement relating to invasive weeds. Council will maintain the current process for issuing Weed Control Notices. The main differences will be the terminology used and that Orders will be issued under the Biosecurity Act. They will be known as Biosecurity Directions.
For further information on Priority Weeds in the Blue Mountains please download the Priority Weeds Information Booklet here;
Greater Glider found on the Mt Wilson Fauna Survey
Last weekend we had the Mt Wilson Fauna Survey Workshop and Spotlight. We were incredibly lucky to see three greater gliders, a threatened species and the Anabat detector also recorded a threatened species, the Eastern Bentwing Bat!
Despite the cold, we had a great turnout of people and animals…..
Do you have a swamp in your backyard or interested in swamp restoration?
Then come join us for this very special event in Hazelbrook, where you will learn the basic principles about swamp restoration whilst giving this swamp a helping hand.
The swamp is located off Rocklea Street, which is the very north end of the urban area and is still in its early stages of being restored, so there is plenty of primary work to be done on a variety of weeds – Erica, buddleia, privet, crofton weed.
A FREE delicious lunch and morning tea has been kindly donated by Hominy Bakery.
Bookings are essential so please RSVP via the link on this page or contact Stephanie at email@example.com. by Thursday 20 September.
Come join your local Bushcare Officer for a FREE, fun event for all ages in Gloria Park, Hazelbrook.
Where you will go on a discovery walk and talk, learn about local plants and animals and give the site a helping hand by doing some weeding at the same time. This is the third ‘Weed, Walk and Talk’ session to be held in Hazelbrook. Bookings are essential so please RSVP via the link on this page or contact Stephanie at firstname.lastname@example.org.
Following up on the great success of the Native bee hotel making workshop at the annual Bushcare picnic in April, Bushcare is launching “The Pollinators” group web page … an online tool for everyone to get involved and post what pollinators are in the hotels, any information you have or would like and gain access to recources and events about pollinators – bees, flies, butterflies, birds …
The coordinator for this page is Phil Nelson, I think you will all remember him from the day – very busy with a drill in hand.
So send your information to him via email and he will upload it to the page.
Pherosphaera fitzgeraldii Katoomba Falls photo courtesy Ian Brown
Protecting the Wentworth Falls population of the endangered Pherosphaera fitzgeraldii from the very invasive Montbretia was the name of the game for our Jamison Creek Catchment Care Day this year. It was well received by some keen Bushcare volunteers, BMCC Bushland Operations Team (Bushcare Officers and Bush Regeneration Officers) and the NPWS Ranger for the Jamison Valley.
Having 2 extra Bush Regeneration team members involved for the first time meant we could divide into smaller groups and cover more of the creekline as well as share information about the management of the whole area while we worked.
One group met at Wentworth Falls Car Park, walked to the top of Wentworth Falls and then worked upstream (wading where necessary) to follow up woody weeds in the area worked last year.
The other groups met at the corner of Jamison and Fletcher streets, kitted up and after a short walk down to the creek, with some walking further down the Charles Darwin Track, started target ting Montbretia around the pools and cascades and all woody weeds and the along the track and creek banks. All three groups re-united for lunch and informative talks on the creek bank.
Montbretia is slow going so although the distance covered wasn’t huge, we removed lots of corms and enjoyed the beautiful weather and surroundings while we worked. There was lots of opportunity to discuss the creek condition, learn about the endangered Dwarf Mountain Pine (Pherosphaera fistzgeraldii).
Montbretia (Crocosmia x crocosmiiflora) corms
Montbretia (Crocosmia x crocosmiiflora) flowers
Another target weed in this catchment is Erica lusitanica (Spanish or Portugese heath, often referred to simply as “Erica”, a woody shrub which has a similar appearance to native tea trees so is often mistaken for a native. Both Montbretia and Erica have the potential to establish in the rocky crevices on the cliffline adjacent to the waterfalls – taking up the space where Dwarf Mountain Pine grows. Annual Catchment Care Days are a valuable contribution to the ongoing work of Council’s Bushland Operations Team, contractors and the volunteer Bushcare Groups. Charles Darwin, Jamieson St Landcare, Wentworth Falls Lake, Water Nymphs Dell and Valley of the Waters groups were all represented this year and together we not only dealt with Montbretia and Erica but as Tutsan, Japanese honeysuckle and Small-leaf Privet as well.
Jenny Hill from Council’s Healthy Waterways Team delivered a very informative talk about the issues affecting the water quality of the catchment and the work underway to improve stormwater management.
Good food, good company and good work resulted in a very enjoyable and productive morning – made possible through funding from the NSW Office of Environment and Heritage “Saving Our Species” program. A huge thank you to SoS and the dedicated volunteers of Wentworth Falls!
Come to Broken Hill this coming August to see where it all started, learn about and celebrate the beginnings of Natural Regeneration in Australia.
In 1937 Albert Morris, his wife Margaret Morris, the Barrier Field Naturalists and 3 Mining Companies made history by starting the first professional scale natural regeneration project in Australia and possibly the world. This was inspired by Albert’s long held dream to fence an area ‘1/2 a mile wide around the town of Broken Hill’ to counter extreme dust storms and sand drift caused by overgrazing.
The Australian Association of Bush Regenerators (AABR) along with local community members is planning a few days of tours, field work and an awards dinner to celebrate this remarkable 80 years.
The idea is similar to other ‘regen holidays’ where visitors can contribute some regen work for two mornings (optional) and locals will run special tours of the reserves explaining the history and current management of this amazing project. After lunch we will be able to visit a range of activities including historical & art exhibitions, movies and a heritage tour.
There are many places of natural beauty to appreciate near Broken Hill as well as its rich union and mining history to explore.
Options for travel will include train, minibus or private cars. The train can be caught from Katoomba. Those travelling on minibuses will be on an organised tour – price details coming later – including an extra field trip on the way (Nyngan waterponding), and van park accommodation and transport within Broken Hill.
A Blue Mountains Swamp near the airfield at Medlow Bath — in its flowering glory — attracted an enthusiastic group of Swampcare volunteers to a field day in January 2017. The field day was part of a 10 year project to protect swamps, called “Swamped By Threats” whose partners include Central West Local Land Services, Blue Mountains City Council and National Parks and Wildlife Service.
The volunteers enjoyed a morning packed with information and good food topped off by a sighting of Blue Mountains Water Skinks – a well deserved reward for all their work during 2016! Unfortunately, the hoped for Giant Dragonfly did not make an appearance … this was not a good year for their emergence.
Two eminent swamp experts were on hand to generously share their knowledge deepen our understanding of swamp plants and animals and their dependence on groundwater. Doug Benson is a highly respected plant ecologist and Honorary Research Associate with the Royal Botanic Gardens Sydney. He has studied swamps of the Blue Mountains and Newnes Plateau for more than 40 years, satisfying his curiosity about how and when they developed. Ian Baird drew on more than 13 years of research on the threatened Giant Dragonfly and swamps generally, to share his extensive knowledge of the fauna that dwell in them.
Our current swamps formed up to 15,000 years ago as the land warmed up and became wetter after the last Ice Age. How the unique swamp plants formed and where they were during these cold and dry periods are particular questions of interest.
Flowering shrubs such as the rare Acacia ptychoclada and Grevillea acanthifolia were admired along with sedges such as Empodisma minus and Xyris ustulata. Two of the shrubs present in swamps, Banksia ericifolia and Hakea teretifolia, are killed by fire because they do not resprout from a lignotuber and do not store seed in the soil. Individual plants can take up to 8-10 years to flower and fruit and even more years are needed between fires to establish a seed bank to ensure the continuation of viable populations of this species in this location.
Plants adapted to sandstone areas only drop seeds close to the parent plant, which is in contrast with northern hemisphere plants where seed moves much greater distances due to reliance on wind dispersal. The presence of Mallee eucalypts in swamps may be understood in terms of opportunities to thrive without the competition of larger trees. Adapted to wetter conditions and fire, some of these Mallees have lignotubers at least 50-100 years old.
Using a 1.8m steel soil probe, Ian demonstrated the significant differences in the depth of soft peaty soil over the swamp and the patches of drier sandy loam. These soil differences are reflected in the plants, and determine where Giant Dragonflies can reproduce.
Ian identified patches suitable as breeding habitat and those which were not, and discussed the importance of damp or saturated peaty soil with a high water table for egg-laying and larval establishment. It is believed that they then spend at least 6 years in their larval burrow. The deepest larval burrow Ian has found, also the deepest recorded, was 75cm.
A very young Blue Mountains Water Skink, plus two adults were sighted. One adult water skink sat still on top of the grass watching the group for some time. Genetic studies indicate that this species has been in swamps in the Blue Mountains for at least 2 million years, but where were they during the ice ages which have occurred over that time? They are currently solely dependant on peat swamps in the mid-to upper Blue Mountains for their survival.
Blue Mountains Water Skink
Ian gave some insights into the range of less appreciated fauna found in swamps which also need groundwater for survival, from the small invertebrates and skinks which may survive fire under patches of wet litter, to the Common Eastern Froglets, burrowing crayfish and swamp rats. Blue Mountains Water Skinks can sometimes use these burrows, and those of Giant Dragonflies, for protection from fire and predators. Crayfish burrows are found in areas with groundwater seepage or a high water table which they can access in their burrows. Swamp rat tunnels may also be abundant; one of which was inspected (these are more horizontal).
Both Doug and Ian explained how Blue Mountains Swamps are important for holding and filtering water. The conservation of swamps is a key concern of those present and an interesting debate on fire, sedimentation and climate change followed. The predicted hotter, drier conditions and more frequent fires will threaten the swamps’ survival.
This event was organised by Blue Mountains City Council Bushcare and assisted by the New South Wales Government Environmental Trust Fund, NSW Local Land Services and NPWS
Kittyhawke Swamp, North Wentworth Falls. Photo by Peter Ardill
Wednesday 29th March 9am – 3pm Join the long term efforts of volunteers to free this large swamp system of a huge variety of weeds and restore the habitat of the Giant Dragon Fly and the Blue Mountains Water Skink. A joint NPWS/ BMCC activity. Lunch and morning tea donated by the Hominy Bakery. Book with Lyndal on (02) 4780 5623 or email@example.com by Tuesday 21st March.