Who's going to maintain the fences once our civilisation collapses and/or humans are extinct? My concern over conservation practice is that it is short-term and instrumentalist, i.e. ultimately concerned with the value of biodiversity to us, as humans. Shouldn't we be concerned with the long-term preservation of biodiversity for its own sake? On an evolutionary timescale, a fence is useless.
Graham
What is 'relieving the man made pressure' - would this extend to recreating habitats lost, reforesting, etc.
If not, would this mean you view habitat recreation is a waste of time and money?
I fail to see how anybody would object to any project which, when all is done, leaves more behind than when was started. Loads of examples in the UK of valuable habitat creation leadig to massive increases in biodiversity, but equally many elsewhere across the globe. How about the recreation of forest corridors between extension protected areas? Habitats being enhanced to replace nearby areas destroyed?
It was fairly big but a lot smaller than the other Earth Sanctuaries - Scotia sanctuary for example is 160,550 acres (though I don't think the entirety is feral free yet). As I understand it the idea is to create protected natural ecosystems which can then spread out into the non-fenced surroundings (by means of plant growth, bird/insect flight and small marsupial/reptile/amphibian spread through the fence). In other words it might not be ideal and certainly isn't something to compare with europe, asian or american conservation schemes but, as an example of how things in Aus need to be a little different its spot on. In terms of scale the Earth Sanctuary company's stated goal was protection of a set percentage of the total landmass of australia in such large sanctuaries (I can't remember if it was 1% or 10% but either way it was an enormous area).
Who's going to maintain the fences once our civilisation collapses and/or humans are extinct? My concern over conservation practice is that it is short-term and instrumentalist, i.e. ultimately concerned with the value of biodiversity to us, as humans. Shouldn't we be concerned with the long-term preservation of biodiversity for its own sake? On an evolutionary timescale, a fence is useless.
Graham
true, but on an evolutionary scale, niche diversity is more important than species diversity. Given time, something WILL eventually come along.
John o' sullivan said:Brown and Obama's green energy campaign has nothing to do with conservation and everything to do with reducing dependence on foreign energy supplies, job creation, an attempt at shoring up crippled economies and the continuation of a rampant consumerist energy dependent society.
In the 'long run', everybody needs a job to do. What the guy's name is...the species...isn't really as important has whether the job gets done. On an island, the jobs...the niches...are replaced much more slowly. Eventually, if all niches aren't filled, the whole island is 'anemic' in a way, not able to take advantage of opportunities presented to evolve new niche species. Somebody will eventually chew up dead/dying trees, distribute tree seeds, pollenate flowers, eat dead animals, etc. When is the only real question.
true, but on an evolutionary scale, niche diversity is more important than species diversity. Given time, something WILL eventually come along.
If the species of Shearwater happens to be endemic and we protect them from Rats or any other threat as long as we have the resources or inclination to do so, is that altruism or selfishness?.
variants of crows, rabbits, and gulls