Golden Orb Weavers are about

The Golden Orb Weaver Nephila edulis is reasonable common in our local bush. At this time of year the females are mature and able to construct large wheel-shaped orb webs. In certain lights these strong webs look golden, thus the name. Their egg sacs are also golden.

The Orb Weaver below was one of two that had joined forces to build a complex web stretching across the track in the Walmer South Nature Conservation Reserve. The web which had been there for over a week was nowhere to be seen the morning after the recent thunderstorm (15 February). Orb Weaver webs are semi-permanent and repairs and adjustments are common so it may reappear.

web.spider

Golden Orb Weaver, 5 February 2015

There are some interesting photos of Golden Orb Weavers including one of mating – the male is tiny compared to the female – and one of a bird caught in a Orb Weaver web on a wonderfully informative site that has been developed by Robert Whyte and Dr Greg Anderson. The site serves as a working draft of forthcoming CSIRO publication, A Field Guide to Spiders of Australia. You can also find out more about these spiders and others on the Victoria Museum website.

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Burning Kalimna

The Department of the Environment is preparing to burn Kalimna Park this autumn, some time between March 1 and May 31. This activity has been long planned, and is part of the current Fire Operations Plan. The map below shows the proposed burn area. The area in the centre of the map enclosed by the bend in the Tourist Road [to the east of the Secondary College], was burned in Spring 2009–this area is thus getting a double dose well inside the Tolerable Fire Interval necessary for the bush to recover after a fire.

Proposed burn area. It's centred on the Tourist road, and includes the area burned in 2009

Proposed burn area. It’s centred on the Tourist road, and includes the area burned in 2009

FOBIF has acknowledged that there is a fuel management challenge in the Park, given its proximity to Castlemaine. We have consistently maintained, however, that public safety and ecological health should be the dual aims of management activity in this heavily used bushland, which is home to the endangered Eltham Copper Butterfly. [Part of the planned ‘treatment’ area was assessed in the recent Bushfire Risk Landscape Plan as a ‘high value ecosystem area.’]

In the light of the apparently intractable contradictions between public safety and ecological health, local conservationists have put to the Department the suggestion that the area be treated in a series of very small burns over an extended period of time. Staged treatment like this would allow fauna better access to relatively unburned refuge areas, and would mean that this community asset could continue to be enjoyed.

At odd times we’ve had positive responses to this idea, but its big drawback is that such operations are more expensive. Land management needs to come cheaply, it seems.

Local conservationists met with Department fire officers on January 30 to discuss these and other concerns. The dialogue was constructive; undertakings were given that areas of importance to the butterfly would be protected.

One serious concern has already emerged, however: track work. Fire managers were asked at the January 30 meeting if intrusive and unnecessary track works could be avoided. They were assured that track works and mineral earth fire breaks would be lightly handled, and that no heavy dozer work would be needed for this.

Within one week, dozers had churned up to a kilometre or more of perfectly serviceable tracks in the proposed burn area. This does not bode well for the sensitive management of this precious area.

Our concerns relate also to adjacent burns proposed in successive years: Kalimna Point and adjacent areas,  Water Race Hill Track, and Colles Road.

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Gouging Kalimna

As we reported above, participants at the January 30 consultation meeting were assured that track works and mineral earth breaks related to burning operations would be carefully managed and would not involve unnecessary gouging or road widening.

Track upgrade in Kalimna.

Track ‘upgrade’ in Kalimna. This particular track slopes steeply off the Tourist road, and is now a prime candidate for erosion.

Residents can judge for themselves how well this undertaking was kept. Within a week of the meeting work on several minor tracks leading steeply off the Tourist road were heavily gouged to widths of up to 7 metres, and their surfaces reduced to a powdery dust. These tracks, though by no means highways, were previously perfectly negotiable by appropriate vehicles.

This week, ‘upgrades’ have also been performed on the Lawson Parade end of the Tourist road. The top of this road, which has a parking area, has now been widened from 15 to 20 metres.

Much of this work has been conducted on tracks steeply sloping off the Tourist road, and seems like a pretty good effort at promoting erosion when the first storm comes along.

We’ve had a go at trying to get a sensible approach to tracks before, and have received numerous assurances, both from Parks Victoria and from the Council. We are NOT opposed to appropriate fire access: but the relentless widening of tracks to widths bigger than the Midland Highway not only destroys the picturesqueness of our bushland, it creates all sorts of environmental fragmentation as well.

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Autumn Fungi Workshops

Alison Pouliot has been sharing her fascination with fungi in workshops and forays across Central Victoria for many years. This year she has put together another wonderful program with several workshops in our Shire and others not far away. To view her 2015 program click here and to find out more about Alison’s work and interests click on her website image below.

alison-pouliot

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Happy new year

It’s been a dry 2014—only 473.9 mls of rainfall in Castlemaine, against a long term average of over 560 mls: and the bush is hunkering down for a long dry summer.

There are still flashes of colour around the place, however, making it worth while getting out to take a look around. Wiry mistletoe is flowering on silver wattles along Forest Creek, for example:

Wiry mistletoe [Amyema preissiae] on wattle along Forest Creek, Castlemaine  town, January 2015

Wiry mistletoe [Amyema preissiae] on wattle along Forest Creek, Castlemaine town, January 2015


And there are luxuriant flowerings of Sweet Bursaria in moister locations, together with some more unusual plants for our region: for example, Common Cassinia [C aculeata]:

Common Cassinia, Fryers Forest, January 1 2015

Common Cassinia, Fryers Forest, January 1 2015

Common Cassinia isn’t  as common here as it is elsewhere, if you get the drift–the common Cassinia in the goldfields being Coffee Bush [C. arcuata], but it can still be found in the odd gully.

If your’e looking for motivation to get out and about, check out the spectacular kingfisher photos in Geoff Park’s Natural Newstead website.

And, in the general sparseness,  there are the odd flashes of colour provided by such persistent heroes as Pelargonium rodneyanum, and the odd orchid. Enough, in short, to justify a stroll just about anywhere in the bush.

Trigger plant [Stylidium America], Fryers Forest January 1 2015

Hyacinth orchid ,  Fryers Forest January 1 2015

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