Cactus Warriors spreading their news

The Tarrangower Cactus Control Group (TCCG)  now has 3 new videos on their website: Cactus Warriors: Who We Are; Cactus: Tackling the Problem and Cactus Warriors: the Wheel Cactus. The videos feature Ian Grenda, President of the TCCG, and  run for between 6 and 10 minutes.

TCCG was set up 7 years ago when 3 local Landcare Groups and Parks Victoria joined together to tackle the spread of Wheel Cactus across an estimated 10,000 hectares of land in the Maldon, Baringhup, Nuggetty and Sandy Creek districts, including the Maldon Historic Reserve. In the first video Ian explains that through their ongoing work the group has probably controlled half of the local infestation of this weed.

The website also has updates about regular field days and  TCCG events and serves as a repository of information about Wheel Cactus, methods of controlling it and the history of the group.

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Cactus Warriors on a TCCG Field Day.

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Lifting the BBQ lid

When John Ellis and Marie lifted the top of their BBQ recently they exposed an impressive construction. A mud wasp had built a nest with cubicles and it was filled with live, paralysed prey for its larvae to feed on.

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Photo of wasp nest by John Ellis, January 2014

Geoff Park helped with identification: the spiders that mud wasp had collected were mainly flower spiders. A few days ago  Geoff had photographed  a pardalote feeding on the same species. (See Geoff’s post here.) Photos of flower spiders in happier situations can be viewed on FOBIF’s flicker site.

web.pic-2Mud wasps are solitary insects and the nest is constructed by a single female wasp. They are often found locally in all sorts of cavities and on buildings as well as tree trunks. The size of the nest is illustrated in the photo on the left.

A CSIRO pamphlet describes the life-cycle: Typically, the female wasp catches a particular insect or spider … then stings and paralyses it. She then carries it back to the nest, lays an egg on it and seals the nest. The waps grub hatches, consumes the food provided and pupates in the cell. When the adult it chews its way out of the cell.

Mud wasps are often all black or black with orange or yellow bands or markings. They rarely sting and are not pests.

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The colour of summer

Summer: it’s a time when the bush can look stressed and under siege—but also when it can offer some pretty good sights, especially in the late afternoon or early in the morning. Clouds of butterflies around flowering  bursaria come to mind–or the flowering tea tree planted by Castlemaine Landcare along Forest Creek.

River tea tree (Leptospermum obovatum), Forest Creek, January 2014: ten years of work by Castlemaine Landcare have transformed the creek between the town and Wesley Hill.

River tea tree (Leptospermum obovatum), Forest Creek, January 2014: ten years of work by Castlemaine Landcare have transformed the creek between the town and Wesley Hill.

 

 

 

 

 

 

 

 

 

 

 

But summer is a time when many species go onto the defence against heat and dry. In some cases, this can be quite picturesque: for example, a splash of startling bronze at the base of a tree which turns out to be a drying patch of Bronze Signal Moss [Sematophyllum homomallum]:

Sematophyllum homomallum: as it dries, it often becomes a richer bronze colour--which might explain its common name, Bronze Signal moss.

Sematophyllum homomallum, Kalimna Park, late December: as it dries, it often becomes a richer bronze colour–which might explain its common name, Bronze Signal moss.

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Summer reading: brace yourself

With grass growth pretty prolific around our region, it might be worth a look back at the 2009 Black Saturday Redesdale fire.

chewton 2 1 14 079 (590x800)As far as we know, Robert Kenny’s Gardens of Fire: an investigative memoir, [UWA Publishing 2013] is the first detailed account of this fire by a householder directly involved. Kenny unsuccessfully tried to defend his house in Racecourse Road, and lost virtually everything he had. His description of his efforts to fight the fire alone makes gripping and sobering reading. He thought he was prepared, with buckets of water, plenty of tanks, a fire pump and appropriate clothing. The fire ran through grassland to his house, and his efforts at defence were defeated when his pump collapsed and embers entered the building ceiling. Kenny is hard on himself: he refers to ‘people from the city, like myself. Who, let’s be frank, had no idea’, and recalls a conversation with a local farmer when he bought his property: ‘I never forget the son of the previous owner of the property, my guide when I first moved in, looking out over parched paddocks where there was virtually no grass, and responding to my statement that there was nothing to burn with: it’ll burn, don’t worry about that.’ Continue reading

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Forget about VCE results: here’s the DEPI report

DEPI has produced a report on its fuel management activity for 2012-13: Reducing Victoria’s bushfire risk on public land. The relevant sections can be found here and here.

The report offers a four part scale of achievement:

–‘fully achieved’

–‘achieved to the best extent possible’

–‘not achieved but is a manageable risk’

–‘not achieved’, and

–N/A (insufficient information to tell)

The Department gives itself full marks for area burned, and ‘achieved to the best extent possible’ for its efforts to reduce bushfire risk to human life and assets.

Mount Alexander 2012: weed growth after a 2009 'reduction burn'. DEPI is too confident in its assessment of the ecological results of its burning program.

Mount Alexander 2012: weed growth after a 2009 ‘reduction burn’. DEPI is too confident in its assessment of the ecological results of its burning program.

 

On ecological resilience (the second major aim of the Code of Practice), the rating offered is ‘The outcome/activity has not been achieved but is a manageable risk (review process for management and/or data collection for further improvement).’ We’re not sure exactly what this means (is ecological resilience a ‘manageable risk’?) but from where we’re standing that looks a very generous mark.

Continue reading

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FOBIF gets a gong

Over a hundred representatives of local volunteer organisations gathered at the Castlemaine Market Building in December as part of international volunteer day. Volunteers ranging widely in age and field of from Castlemaine Secondary students to visitors to care accommodation

Lyn Amaterstein accepting a volunteering certificate on behalf of FOBIF from Bendigo MHR Lisa Chesters

Lyn Amaterstein accepting a volunteering certificate on behalf of FOBIF from Bendigo MHR Lisa Chesters

were acknowledged for their contribution to community life. Lyn Amaterstein accepted an acknowledgement certificate on behalf of FOBIF.

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Bushfire ‘risk landscape’ forum in Castlemaine

This forum–focussing on the West Central district–was held in Castlemaine on December 11 for a disappointing attendance of only 8 community members, outnumbered by DEPI officers. The West Central district covers the area from Geelong to north of Bendigo, and from west Melbourne to Avoca.

 

The forum appears to be part of an effort by DEPI to communicate its efforts to get a more precise understanding of the effects of fire on the community and the environment.

Wewak track, Castlemaine Diggings NHP: draft environmental scan contradicts itself on the matter of the 'fire dependence' of our forests.

Wewak track, Castlemaine Diggings NHP: the draft environmental scan contradicts itself on the matter of the ‘fire dependence’ of our forests.

 

The information tabled at the meeting seemed heavily dependent on computer modelling. Questions were asked at the forum about ‘ground truthing’ of this modelling, and community representatives present were unconvinced by the answers.

 

Participants at the forum were presented with a draft environmental scan of the area which outlined the challenges and complexities of fire management. This document confirmed what we have often commented on: that DEPI confronts serious contradictory demands in its fire program. One example: winery owners prefer spring burning to autumn burning, because of the risk of smoke taint to grapes. Ecologists and apiarists dislike spring fire because it interrupts flowering and breeding processes. Unfortunately DEPI too often resorts to glib phrases like ‘trade offs’ to explain its activities, which more often than not sacrifice the environment for economic activity. Conservation organisations have consistently hammered the idea that we should aim for a better result for everyone—for example, by more detailed management of much smaller burns.

 

The evidence is piling up that the crude target of burning five per cent of public land every year [no matter how much land is burned in bushfires] is environmentally damaging and does not improve public safety. For that reason any process that contributes to a clearer understanding of the issues is good.

 

There were, however, a few unsettling blips in the info presented at the forum. A map on page 11 of the draft environmental scan shows that forests in the Mount Alexander region are ‘fire dependent’. This is NOT the case—as the text of the same document points out on page 9. Further, the scan appears to blandly accept the continuing development of housing in dangerous areas (page 20). This is not a simple matter, and the draft tells us that ‘new land use criteria will be developed as a result of the Bushfires Royal Commission.’ In our opinion these criteria are already overdue.

 

The forum was part of a process leading to the planned release of a new strategic bushfire plan by June 30 2014.

 

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Ecology last?

The Castlemaine Forum was given a summary of the bushfire risk profile developed by DEPI in cooperation with various research bodies. The profile is a working document rather than a set of conclusions, and is about risk to human life and assets: no way has yet been developed in this system of assessing risk to the environment in current burning practices [p 7]. 

According to DEPI computer modelling, risk to people and property has been reduced by 40% since 2002 by a combination of major bushfires [mainly] and controlled burning. The report adds:

Continue reading

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Quotable quote

From DEPI’s Risk profiles report, page 30:

‘Fuel reduction is much more effective in some areas than others in reducing overall bushfire risk [to life and safety].’

This common sense observation is yet another dig at the five per cent policy, which involves burning everywhere, regardless of the value to human safety.

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Moss guide published

moss-pic-for-webFOBIF’s publication, A field guide to the mosses of south eastern Australia, has been published. If you wish to place an order this form has all the details and includes a sample page.

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