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      Causes and consequences of sea urchin abundance and diversity in Kenyan coral reef lagoons

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      Oecologia
      Springer Nature

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          Diversity in tropical rain forests and coral reefs.

          The commonly observed high diversity of trees in tropical rain forests and corals on tropical reefs is a nonequilibrium state which, if not disturbed further, will progress toward a low-diversity equilibrium community. This may not happen if gradual changes in climate favor different species. If equilibrium is reached, a lesser degree of diversity may be sustained by niche diversification or by a compensatory mortality that favors inferior competitors. However, tropical forests and reefs are subject to severe disturbances often enough that equilibrium may never be attained.
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            Plant Species Diversity in a Marine Intertidal Community: Importance of Herbivore Food Preference and Algal Competitive Abilities

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              Spread of diadema mass mortality through the Caribbean.

              Populations of the ecologically important sea urchin Diadema antillarum suffered severe mass mortalities throughout the Caribbean. This mortality was first observed at Panama in January 1983; by January 1984 it had spread to the rest of the Caribbean and to Bermuda. The sequence of mortality events in most areas is consistent with the hypothesis that the causative agent was dispersed by major surface currents over large distances. However, some of the late die-offs in the southeastern Caribbean do not fit this pattern. Several lines of indirect evidence suggest that the phenomenon is due to a water-borne pathogen. If so, this is the most extensive epidemic documented for a marine invertebrate.
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                Author and article information

                Journal
                Oecologia
                Oecologia
                Springer Nature
                0029-8549
                1432-1939
                June 1990
                June 1990
                : 83
                : 3
                : 362-370
                Article
                10.1007/BF00317561
                28313008
                4c9f848f-bfeb-4fb0-a6ae-79697ee9c9b2
                © 1990
                History

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