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Invertebrates of Prosperous Bay Plain, St Helena: a survey
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St Helena was formed some 14 million years ago, but Ascension is only a tenth as old. The difference in age confers a special interest. On St Helena, the few successful colonising plants and animals evolved and diversified in isolation for millions of years; mature natural communities developed and the landscape was transformed. In contrast, the ecological youth of Ascension leaves it strange and forbidding, but with its own biological surprises and its own austere beauty.
Since the arrival of humans five centuries ago, the fauna and flora of these islands have changed irrevocably. The vast seabird colonies have been decimated and many plants and animals have become extinct or are teetering on the brink. There is still an opportunity, however, to appreciate what remains and to understand what has been lost.
Lot, an intrusion of phonolitic rock exposed by erosion, St Helena
Selected Bilbliography - St Helena and Ascension
Selected Bibliography- Island Biology and Sea Birds