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Good species -- bad species

Nature Magazine April 26, 2007 page xiii: A summary of an article in the magazine entitled –New species for old? – States, “Native species might be expected to outperform invasive species on their home turf. This way of thinking has become a component of many strategies for the control of invasive species and the restoration of native ecosystems…”

This is another way of saying we (environmental scientists) assumed this to be right but were mistaken.

The piece goes on to say that, “But a study of the fates of 19 phylogenetically related pairs of invasive/native plant species shows that the invaders tend to be more efficient than native species at using limited resources.”

What were they suspecting that evolution is driven by survival of the least fittest? Or by what humans think should survive? For over 4 billion years the course of evolution has shown that a species that cannot deal with a changing environment will be replaced by one that can.

The summary goes on to say that, “this work calls into question any management strategy that relies on lowering resources availability…” Actually it calls into question more than that. It calls into question the very basis for the environmental policy that nothing should go extinct. Stopping a species from going extinct is at least as disruptive to nature as causing an extinction.

Shades of the Spotted Owl. What and who determines that a species is invasive? For some time that decision has been made by environmentalist based on rather arbitrary information. The best possible science is no replacement for omnipotence. Yet that is what is being used to determine which species is to live and which is to die. Human intervention based on the notion that what appeals to humans should survive is the greatest of all human impacts on the environment.

Has anyone notice that dinosaurs are not around anymore? Did humans cause their extinction? Is it possible that some species should be allowed to go extinct? If so which ones? Should environmental scientists be allowed to play god? Environmentalists have arbitrarily decided to artificially increase the number of seals and sea lions, which are now decimating the salmon species. Are these policies more harmful than helpful?



By D. J. Dodds

http://northpacificresearch.com/blog/

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