0000000001329725

AUTHOR

Mats Jonsell

Structure of insect community in the fungus Inonotus radiatus in riparian boreal forests

ABSTRACTBasidiomes of polypore fungi host many insects. Yet systematic information about insect assemblages from most fungal species is lacking. We studied the insect community associated with the wood-decaying fungus Inonotus radiatus (Sowerby: Fr.) P. Karst. (Hymenochaetales). More specifically, we studied the effect of successional stage and weight of basidiomes, as well as shore exposition (north or south), on species richness and composition, as well as occurrence and abundance of the most abundant fungivores. Basidiomes were collected from riparian forests at five lakes in Sweden. Insects were reared out from the basidiomes in the laboratory. A total of 5645 adult insect individuals o…

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Increasing influence of the surrounding landscape on saproxylic beetle communities over 10 years succession in dead wood

In a previous study of saproxylic beetle fauna on fresh artificially created high stumps of spruce and birch on 20 clear-cuts (whereof 10 in hotspots) we found only weak relations between beetle fauna and forest-landscape variables associated with hotspots for biodiversity. The stumps were distributed over a large part of south Sweden in an area covering 200 km from East to West and 50 km North to South. The result gave weak support for the strategy of concentrating measures to mitigate the decrease of dead-wood dependent insects to hotspots. We hypothesised that the relationships would be stronger when the wood was in a later successional stage, as hanbitat predictability increases with a …

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