Mother knows the best mould: an essential role for non-wood dietary components in the life cycle of a saproxylic scarab beetle

Beetles living in tree hollows can feed on a wealth of substrates—e.g. the rotten wood surrounding the cavity, leaf humus falling into the hole, and larval frass accumulating in the cavity. In this paper, we examine the role of these main substrates in Finnish tree hollows in the female preference a...

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