Runaway human breeding, whether by thoughtlessness or selfishness, is behind Anne Magurran’s words:
All other things being equal, the Great Barrier Reef has a life expectancy of about another 30,000 years. This is unlikely to be achieved, as we are now appear to be entering the sixth mass extinction, one that is set apart from its predecessors by the fact that it can be largely attributed to a single cause, the actions of Homo sapiens. [J. E. N.] Veron’s account of the threats that face the Great Barrier Reef make bleak reading. Mass bleaching, rising temperatures and the irreversible acidification of the ocean water, driven by anthropogenic climate change, could replicate the destruction last seen 65 million years ago, and at a much faster rate than before. Other marine systems, including fisheries, may also be fatally damaged.
The British ecologist Charles Elton predicted, in 1958, that “wild beauty” would be lost within fifty years. At that time, only a handful of people were concerned about biological diversity and its loss. Yet half a century on, Elton’s prophecy is being played out to an extent that even he would have found alarming. Just as the Great Barrier Reef was built through countless millions of small actions by the organisms within it, so it is being threatened by the accumulation of small activities in each of our lives, events that are individually trivial but, added together, impose a huge burden on ecological communities.
Quoted from Anne Magurran’s review of A Reef in Time: The Great Barrier Reef from beginning to end, by J. E. N. Veron. Harvard University Press. To preview the book, click here.
For a brief biography of Anne Magurran, click here. For a brief biography of J. E. N. Veron, click here. For a brief biography of Charles Elton, click here.
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