Archives for March 2006

Dear Jennifer,

I would like to share an example of the absurdity and wastage which goes under the name of endangered or threatened species management in southwestern forests [of western Australia], part of the ‘great diversity hotspot’ referred to by Professor Myer and others.

A few months ago I visited the karri forest and drove out with a former colleague to have a wander in the Warren and Dombakup State forests, south of the Warren National Park. I once knew these areas very well; I had been the District Forester at Pemberton in the 1960s and 1970s. The Warren and Dombakup State forests were at the time being cutover to supply sawlogs to the big sawmill at Pemberton. Part of my job was the preparation of the logging plans for the mill, supervision of the treemarking (selection of seed trees), quality control of logging operations and the post-logging regeneration of the cutover forest. The clearfelling took place over two or three years, and the regeneration operations in the summer of 1971/72. This involved a process of “scrub-rolling” (using a bulldozer to flatten the tall dense understorey of karri wattle so we would get an even seedbed) and then burning to create an ashbed at a time when there was ripe seed in the crowns of the retained seed trees.

Karri trees only produce seed every 4 or 5 years, so the timing of regeneration operations is very critical. The burns themselves were a tremendous challenge, because of the heavy fuels in the national parks to the north and west, but we had a good handle on the seed cycle, and I had a cadre of very experienced field staff and forest workmen. The whole business succeeded wonderfully. The following winter we got a mass germination of karri seedlings, plus all the other plants which come away after fire in this country. The log landings and some of the old snigging tracks were planted with karri seedlings from the nursery at West Manjimup.

It was great to revisit this forest 35 years later. The hillsides are now covered with tall (>40 metres), swaying karri trees as far as the eye can see, and the day I was there the bush was alive with birdsong and rich with wildflowers. I was told the fauna (which is mostly nocturnal) is abundant, and I sampled for myself the good clear water running in the streams. In one section there was a commercial thinning operation going on, taking out the smaller less vigorous trees to free up the bigger and better trees, and enhance their maturity. The logs were being sold to a sawmill for the production of tile battens, and the thinned stands looked absolutely magnificent.

The whole thing appeared to me to be a working example of ecologically sustainable forest management, with the new forest replacing the old and already providing environmental services as well as commercial values, and growing sturdily into the Old Growth of the future. It seemed to me that here was a scene of beauty and productivity, something of which we could all be proud. Not so.

To my surprise I noticed that all through the regrowth, officers from the Department of Conservation and Land Management (CALM) had been designating areas in which the thinning operations were banned. These were marked with plastic tape. When I asked what was going on, it was explained to me that a CALM officer had discovered “rare” species of cryptogams (liverworts) growing on the karri wattle in the regrowth forest in this area.

A liverwort is a primitive green, moss-like slime which grows on the trunks of woody shrubs in higher rainfall forest areas all over the world).

CALM feared that the liverworts would be destroyed in the thinning operation and become extinct. So in these areas the thinning was banned. This will have a number of downsides, including a reduction in the rate of development of the stand, loss of commercial value and income, demand for officer time to delineate the exclusion zones and police them, loss of profit to thinning contractors and a much more difficult forest in which to carry out green burning for wildfire mitigation (unthinned karri regrowth is tricky to burn). Carried forward, it will mean that the areas can never be logged again and are more vulnerable to high intensity summer bushfires.

To put this into context: on an evolutionary scale, liverworts are a very ancient type of plant. They have undoubtedly lived in the karri forest for as long as there has been karri forest, and that is countless thousands of years. Certainly they have not evolved in this area during the last 35 years. Over the eons they would have survived thousands of bushfires, including mild burns lit by Aborigines and high intensity stand replacement fires lit by lightning. By their very presence in the regrowth forest, these liverworts demonstrate that they were quite able to survive the forest being clearfelled, scrub-rolled and given a hot regeneration burn and converted from old growth to regrowth. While CALM admit that the liverworts may well have recovered after the clearfelling and hot regeneration fire, they regard them as too delicate to survive selective thinning of the subsequent regrowth forest.

I did some checking and discovered that these liverwort species are well known from as far afield as the Stirling Ranges and are widespread (though scattered, and their distribution is not mapped) throughout the southern forests. They may not be “rare”, but CALM has decided they are “threatened”. So that’s that.

I challenged CALM over the idiocy of their policy, thinking that perhaps they did not understand the history of the area. Far from it. They knew, but it made not one iota of difference. The good old Precautionary Principle was duly trotted out, and as usual presented as unchallengeable. Neither did the disgraceful waste of staff resources involved in the “protection” of these non-rare and non-threatened species worry anyone. I was left wondering whether CALM has too many staff, with not enough to do.

I don’t go so far (as some Old Growth Foresters do) as to suggest that the environmental ideologues in government are deliberately playing the threatened species card to stop timber cutting in the karri forest. I think it is more likely that inexperienced young CALM staff with an academic background in environmental science rather than forestry, and with a burning desire to do something for the environment suddenly found themselves with an opportunity, and went for it, without thinking through the logic or the consequences. I have observed many young people in the new environmental and land management agencies, and they share a common characteristic: they know what they are against, but they do not know what they are for.

The multipurpose-multivalue and pro-active forest management system I was taught and then practiced as a young forester has been replaced by a vacuum, and in groping for something to do (as opposed to something to stop), they come up with something silly. The worst thing about all this, to my mind, is that the senior people in government, the people who are running the show, let it happen.

Yours sincerely,

Roger Underwood.

The Commonwealth Games will begin tomorrow in Melbourne with an endangered subspecies as its mascot.

While the fine print in some of the promotional material explains that Karak belongs to a subspecies of red-tailed black cockatoo, the general impression is that the entire species is close to extinction with fewer than 1,000 red-tailed black cockatoos surviving in the whole of Australia.

The official Games website states:

“With fewer than 1,000 South-Eastern Red-Tailed Black Cockatoos in the wild, the Games has extended a lifeline to the species by adopting it as the mascot ‘Karak’.

As a result of the growing awareness of the species’ decreasing numbers, government and private industries have offered funds and resources to create a breeding programme to save the cockatoo.” (Emphasis added)

In reality the cockatoo is not uncommon across much of northern, western and north eastern Australian.

According to The Australian Parrot Society it is only the small and isolated population of Red-tailed Black Cockatoos (Calyptorhynchus banksii graptogyne) which occurs in south-western Victoria and adjacent parts of the south-east of South Australia that is considered vulnerable to extinction. There are about 1,000 of these birds, hence the official script.

Not that confusion about the proliferation of the species is uncommon – copies of letters dating back to 1997 have been posted at the society’s website complaining that the Queensland Department of Environment had issued permits to farmers to shoot the cockatoos because the birds were causing crop damage.

The Commonwealth Games, like the Olympic Games, is about the best, the strongest, the most competitive. Why choose the most threatened subspecies of Red-tailed cockatoo as the games mascot?

As a nation, as a people, we seem to have to focus on environmental disasters, even at a time when we are celebrating achievement.

In adopting an endangered subspecies as a mascot and pretending it represents the entire species, government has announced an additional funding allocation of $1.3 million for the cockatoo.

At the launch the federal government Ministers, probably unknowingly, reinforced the impression the entire species is endangered with some of the following quotes from the media release:

“Australian Ministers for Agriculture, Fisheries and Forestry Peter McGauran, and the Environment and Heritage Senator Ian Campbell, said the work was vital to the future survival of the species. (emphasis added)

“With less than 1,000 of these birds remaining in the wild, this important work will safeguard one of our unique species – now recognised around the world thanks to Karak, the symbol of the 2006 Melbourne Commonwealth Games,” Minister McGauran said.

… Victorian Minister for the Environment John Thwaites said the main threats to the cockatoo’s long-term survival were the loss of the large hollow trees that provide nesting opportunities, the clearing of buloke trees and extensive hot fires in stringybark forests.”

This is part 5 of a series of blog posts on Species Vulnerable to Extinction, beginning here.