Showing posts with label long term ecology. Show all posts
Showing posts with label long term ecology. Show all posts

Saturday, 6 February 2010

Place myths and imagined histories: the restoration of the Scottish Highlands

We all know what nature is, don’t we? Panoramic wilderness, lush green forests, roaring rivers, the dawn chorus and the rest? However, when we start to think about how to use, conserve or change a natural landscape, it becomes apparent that the way we understand and value nature is highly individualistic, and influenced by our personal histories and contexts. William Cronon (1995) is a key author in describing this social construction of nature. Of course, the basic elements and interactions in nature would occur without humans, but the way we understand, value and use this “other” nature is highly influenced by our social context. This means that conservationists work in a landscape defined not only by natural processes, but one also influenced by value-driven outlooks of numerous land-users.

The nature of rural Scotland has in the public focus recently in a manner rarely seen before. There is increasing support for “rewilding” the Scottish landscape through restoring pre-human flora and fauna, seen most controversially in the reintroduction of large mammals such as beaver, wolf, lynx and even bears. However, the social, cultural and political context which underlies this debate is not always properly explained. Conservation of the Scottish landscape is not as simple as saving an external, “othered” nature. Instead, it results from a tempestuous history, which has left several groups with competing concerns over who should define and manage the natural landscape.

It’s not always immediately obvious, but the Scottish Highlands are an artificial “wilderness”. Forced, and often brutal, evictions of crofting families throughout the 18th and 19th centuries in order to clear land for sheep farming caused huge social upheaval and resentment. The parallel expansion of aristocracy-based shooting estates (with accompanying explosion in deer numbers, and resulting ecological damage), and Victorian “Balmoralisation” (which valued an empty, wild Scottish landscape for the sporting and artistic use of the upper-classes), changed the natural and social face of the Highlands dramatically.

Rewilding is often framed as a purely ecological argument, restoring ecosystem function through the reintroduction of species which play important ecological functions, such as predation (e.g. lynx) or habitat creation (e.g. beaver), but have been lost due to human actions. As a result of the history of the Scottish countryside, rewilding may also be manifestation of the struggles over redefining and reappropriating land rights, through community forestry (e.g. Abernethy) and community land ownership (for an excellent discussion, see Mark Toogood’s 2003 chapter in Decolonising Nature).

Scottish conservation discourse reflects this tension about how to manage the land, and for whom. Forestry literature distributed by the Scottish Wildlife Trust and Scottish National Heritage is littered with value-laden words like “sublime” and “wilderness”, which evoke a pre-human “blanket forest” in the Highlands (the extent of which is debated – see Brown 1997 and Rackham 1976). Forests have always had a deep cultural resonance as wild, spiritual and mythical places. In the English language the words “wild” and “wood” both grew out of the root wald, which split into “weald” and “wold”, meaning both a wooded place, and a place inhabited by wild creatures like wolves and bears. Similarly, the Latin word silva is the root for both “forest” and “savage” (Both these etymological facts come from Robert MacFarlane’s brilliant 2007 book The Wild Places). It is clear, therefore, how forest restoration can become a powerful discourse in reappropriation of natural and cultural histories.

At the moment, I’m interested in how this discourse of reappropriation – through what Mark Toogood labels “an imagined history” – influences Scottish conservation, in particular ecological restoration. Is ecological restoration influenced by attempts to return to an idealised pre-English, pre-aristocracy “nature”? How do conceptions of historical landscapes (Toogood’s “place-myths”) correspond to the findings of long-term ecology? Will the influence of imagined histories lead to compositionalist restoration attempts which may be left unsuited and unable to adapt to future climate change? Are we as academics being too idealistic in what people want from their landscape? Is the cultural importance of reappropriation as important as being able to make a living from the land?

All of these questions are a work in progress for me at the moment (and will hopefully underpin my dissertation). I’d hope that working at this intersection between long-term ecology and cultural history could yield interesting results for conservation management.

Rob St.John

A few good references:

Brown N (1995) Re-defining native woodland. Forestry 70(3): 191

Cronon W (1995) The Trouble with Wilderness; or, Getting Back to the Wrong Nature. Cronon W, ed., Uncommon Ground: Rethinking the Human Place in Nature, New York: W. W. Norton & Co., 1995, 69-90

Macfarlane R (2007) The Wild Places. Granta, London.

Rackham O (1976) Trees and Woodland in the British Landscape. Orion, London

Toogood M (2003) Decolonising Highland conservation. In Decolonising Nature: Strategies for Conservation in a Post-colonial era. Adams WM and Mulligan M eds. 152-172. Earthscan, London

Thursday, 4 February 2010

Novel Ecosystems

“It's the end of the world as we know it.....
….. and I feel fine”
The Long Term Ecology module is having a strange effect on me.
When we start looking beyond ourselves – beyond a lifetime, beyond the century, beyond the millennium and beyond the time human beings have on earth – everything seems fine. We as a species have been on this planet for a negligible part of its life time, and so although we may leave some permanent scars, whatever we do on this earth is likely to be relatively insignificant. And what one individual does in his life time is sure to be completely insignificant.
I had an uneasy feeling after the first session, but it really got to me with a paper by James Harris and his friends, titled 'ecological restoration and global climate change', which we had to read for the class on 'determination of baselines and natural system variability'.
Whenever we try to undo the damage and destruction we have caused in the natural world – 'restoration', the first question that comes up is what do we want to restore to? The general idea is to take it back to 'the ecosystem present before human influence became pronounced on the landscape' (the definition of a baseline). But how far back do we go to define this baseline? Twenty years? To a point before industrialisation? But what about the fires and other manipulation by indigenous people, possibly thousands of years ago? I would tend to go with ‘before industrialisation’, and would modify the baseline definition to 'the ecosystem present before fossil-fuel aided human influence became pronounced on the landscape'.
And I thought I was OK with that. Indigenous people and their rubbing sticks for fire in slash and burn agriculture was acceptable. They were a part of the ecosystem, and interacted with it on a somewhat equal footing. Us modern lot, with JCBs and selective herbicides are not. We’ve had an unfair advantage, and the ability to destroy it completely. So as far as I’m concerned, in our efforts to save the planet we should try not to meddle with the natural world too much – only try to take things back to the way they were a few 100 years ago. Not try to play God and intensively 'manage' forests under the arrogant assumption that we understand how it all works.
But then along came the Harris paper (and the lecture) and disturbed my peace. The global climate is changing at an unprecedented rate – rainfall is becoming erratic, sea levels are rising, the temperature is going up and everything is altogether more unpredictable. Our first reaction is to try to stop it all and possibly slow down climate change. But are we really going to be able to stop the gas guzzlers? We can perhaps slow them down a bit, but with the whole world now aspiring to the very lifestyle and values (of greed and accumulating wealth) that is destroying the world there seems little hope. From any angle climate change looks inevitable.
Animal and plant species are also going to have to adapt very rapidly if they want to survive. Population ranges are going to have to move away from the equator and towards the poles to find suitable cooler habitats. Or perhaps up mountain slopes to higher altitudes. Unfortunately though, they can't really do that any more. We've got all the land around them, and have fenced them into 'protected areas'. So species are going to die out, and ecosystems are going to stop functioning. Unless we are able to find and introduce other species that can survive in the new conditions to replace the roles played by the locally extinct ones. We can’t just try to restore things back to the way there were, because we can’t reverse climate change. We need to experiment at a massive scale – a mix and match between a host of species to create 'novel ecosystems'.
Our iconic Nilgiri tahr will go up and up the mountains, but they won't be able to evolve wings fast enough, so our best bet would be to catch them all and throw them in with their Himalayan cousins.
Perhaps stop trying to fight lantana. Just modify its genes slightly so that the herbivores can eat it.
When it gets too hot for the cerana and dorsata bees we transport their African relatives over to see how they can cope.
We don't have a choice - even with our limited understanding we have to try and play God.
It's the end of the world as we know it, and I feel fine.

Tarsh