hide
Free keywords:
-
Abstract:
Decomposition includes two important basic processes: mechanical fragmentation of substrate and chemical mineralization of organic materials. In the várzea, these processes take place both in the aquatic and the terrestrial phases. In both phases, mineralization is accomplished mainly by bacteria and fungi. Wood fragmentation in the terrestrial phase is mainly due to wood-feeding termites (Chap. 18) and Coleoptera (Cerambycidae and Buprestidae; Irmler, unpubl.), which are also able to mineralize wood components to a certain extent (Sect. 12.5). In the aquatic phase, larvae of the mayfly Asthenopus curtus are important wood fragmenters (Sect. 12.4).