Abstract
We studied the response of the macrofauna to forest conversion from
pure coniferous stands into semi-natural montane forests in the
southern Black Forest (Germany). The investigation was carried out by
comparing existing stands that represent the four major stages of the
envisaged conversion process. Major results are: (i) environmental
parameters indicate a significant alteration of the soil environment,
(ii) neither an overall change nor a clear trend in macrofaunal
richness and abundance could be established, and (iii) the data for the
different taxa suggest specific responses to the conditions of the
individual conversion stages. In general, saprophagous taxa seem to be
mainly driven by alterations of the resource base (litter quality,
microbial parameters) while predatory taxa tend to respond to changes
at the consumer level. Associated alterations in the functional
structure occurred for macroengineers (earthworms), primary consumers
(diplopods, isopods) as well as a wide range o
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