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Colonization of Exploded Volcanic Islands by Birds: The Supertramp Strategy
Jared M. Diamond
New Series, Vol. 184, No. 4138 (May 17, 1974), pp. 803-806
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1738665
Page Count: 4
You can always find the topics here!Topics: Pain, Birds, Islands, Species, Montane forests, Lowland forests, Population density, Vegetation, Lowlands, Forest habitats
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After volcanic explosions or tidal waves had defaunated several islands near New Guinea, bird species number rapidly returned to equilibrium on coral islets and rapidly returned to quasi-steady-state values limited by re-growth of vegetation in lowland forest of larger islands. However, reequilibration in montane forest has been limited by slow dispersal of the birds. Colonists have been drawn disproportionately from r-selected "supertramp" species, which maintain much higher population densities than do K-selected faunas, perhaps due to selection for resource overexploitation by the latter.
Science © 1974 American Association for the Advancement of Science