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  [Aroid-l] Schismatoglottis species
From: botanist at malesiana.com (Peter Boyce) on 2008.06.20 at 14:39:11(17881)
Dear Leland,

There has been a bit of intensive study (mainly by our students here and also by Marc Gibernau when he visited us) and over the years I have made a considerable number of casual observations such that we are pretty much sure that rour groups of insects, three beetle families (Nitidulidae (flower beetles), Chrysomelidae (leaf beetles) and Staphylinidae (Rove beetles)) and one fly genus (Colocasiomyia - Drosophilidae) are the regular visitors. Very occasionally one or two species of Scarabidae turn up in the large inloresceneces of the Calyptrata group.

Fruit set in habitat is abundant (seemingly close on 100%) but there is a fair degree of fruit predation in some species such that I would estimate that fruit reaching maturity is probably less than 60%.

Another area with very little data is that of fruit dispersal. On the rare occasion I have seen dispersing fruits it woulk appear that ants are the main vector, seemingly attracted to the slightly sweet fruit and carrying the fruits (which detach from the spadix axis at maturity and cohere in loose masses inside the lower spathe, which opens by a few irregular splits. At the nursery I watched numerous green tree ants (which paradoxically are red in Sarawak but no less pugnacious than their gren forms) collect fruit from a species (yet to be described) in the asperata complex and carry them to thier arboreal nest.



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