Differential Colonization of Roots of Rhizophora mangle by the Wood Boring Isopod Sphaeroma terebrans as a Mechanism to Increase Root Density |
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| Authors: | Georg Ribi |
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| Institution: | Zoological Museum, University of Zurich;Winterthurerstrasse 190, CH-8057 Zurich, Switzerland |
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| Abstract: | Abstract. The frequency of parasitism of free ending prop roots of the red mangrove, Rhizophora mangle, by the wood boring isopod Sphaeroma terebrans, increased with increasing distance of the endings to established roots. In a field experiment, in which isolated endings were, surrounded by wooden sticks, the endings were colonized by S. terebrans at a lower rate than control endings, thus indicating that the wooden structures in the vicinity of the ending tended to reduce colonization rate by S. terebrans. It is concluded that S. terebrans may cause mangrove root density to increase by colonizing peripheral endings more readily than endings which are near established roots. |
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| Keywords: | Florida intertidal isopods mangroves parasitism wood boring organisms |
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