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Underwater eruptions started forming Surtsey
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Insects arrive by flying, floating, drifting materials,
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First insect discovered
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Sea roclet found
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First mosses found
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Eruptions forming Surtsey finish
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Birds first landed on Surtsey
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Sea lyme grass, sea sandwort and oyster plant established themselves
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Sea rocket flowered
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Six species of moss discovered
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Sea sandwort survived winter - first plant to do so
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First nesting birds - black guillemot and fulmar
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Lichens found
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Sea sandwort first seeded
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Sea lyme grass and Oyster plant start seeding
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Conditions barren and soil quality poor
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Establishment of gull colony
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Soil fertility improved
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Number of breeding pairs of gulls risen to 200
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6 species of birds breeding
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Number orf plant species grew from 21 to 44
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First earthworms found in soil
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Invertebrates found in Surtsey
Ants, bees, butterflies, snails, true flies, beetles, spiders and segmented worms -
53 species of mosses found
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11 breeding species of bird foun d in census
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76 invertebrate speices found
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Surtsey World Heritage Listed